./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 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 ../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.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 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:03:50,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:03:50,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:03:50,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:03:50,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:03:50,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:03:50,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:03:50,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:03:50,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:03:50,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:03:50,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:03:50,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:03:50,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:03:50,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:03:50,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:03:50,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:03:50,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:03:50,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:03:50,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:03:50,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:03:50,354 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:03:50,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:03:50,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:03:50,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:03:50,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:03:50,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:03:50,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:03:50,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:03:50,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:03:50,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:03:50,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:03:50,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:03:50,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:03:50,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:03:50,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:03:50,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:03:50,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:03:50,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:03:50,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:03:50,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:03:50,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:03:50,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:03:50,372 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:03:50,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:03:50,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:03:50,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:03:50,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:03:50,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:03:50,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:03:50,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:03:50,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:03:50,400 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:03:50,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:03:50,401 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:03:50,401 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:03:50,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:03:50,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:03:50,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:03:50,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:03:50,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:03:50,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:03:50,403 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:03:50,403 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:03:50,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:03:50,403 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:03:50,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:03:50,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:03:50,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:03:50,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:03:50,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:03:50,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:03:50,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:03:50,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:03:50,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:03:50,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:03:50,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:03:50,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 [2022-07-14 14:03:50,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:03:50,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:03:50,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:03:50,597 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:03:50,598 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:03:50,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-07-14 14:03:50,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef71f5a4/5c961e73e8ac4ed6b6d1e0d68d0c1272/FLAGfefa2f72d [2022-07-14 14:03:51,090 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:03:51,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-07-14 14:03:51,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef71f5a4/5c961e73e8ac4ed6b6d1e0d68d0c1272/FLAGfefa2f72d [2022-07-14 14:03:51,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef71f5a4/5c961e73e8ac4ed6b6d1e0d68d0c1272 [2022-07-14 14:03:51,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:03:51,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:03:51,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:03:51,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:03:51,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:03:51,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@185a8793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51, skipping insertion in model container [2022-07-14 14:03:51,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:03:51,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:03:51,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:03:51,530 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:03:51,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:03:51,598 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:03:51,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51 WrapperNode [2022-07-14 14:03:51,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:03:51,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:03:51,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:03:51,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:03:51,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,654 INFO L137 Inliner]: procedures = 368, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 88 [2022-07-14 14:03:51,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:03:51,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:03:51,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:03:51,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:03:51,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:03:51,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:03:51,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:03:51,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:03:51,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51" (1/1) ... [2022-07-14 14:03:51,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:03:51,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:51,715 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) [2022-07-14 14:03:51,743 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 [2022-07-14 14:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 14:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 14:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 14:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-14 14:03:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-14 14:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:03:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:03:51,764 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-14 14:03:51,908 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:03:51,909 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:03:52,143 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:03:52,149 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:03:52,149 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 14:03:52,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:03:52 BoogieIcfgContainer [2022-07-14 14:03:52,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:03:52,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:03:52,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:03:52,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:03:52,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:03:51" (1/3) ... [2022-07-14 14:03:52,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a362265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:03:52, skipping insertion in model container [2022-07-14 14:03:52,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:51" (2/3) ... [2022-07-14 14:03:52,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a362265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:03:52, skipping insertion in model container [2022-07-14 14:03:52,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:03:52" (3/3) ... [2022-07-14 14:03:52,158 INFO L111 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2022-07-14 14:03:52,161 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:03:52,166 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:03:52,167 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-14 14:03:52,167 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:03:52,210 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-14 14:03:52,245 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:03:52,254 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 132 transitions, 269 flow [2022-07-14 14:03:52,257 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 132 transitions, 269 flow [2022-07-14 14:03:52,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 132 transitions, 269 flow [2022-07-14 14:03:52,315 INFO L129 PetriNetUnfolder]: 0/131 cut-off events. [2022-07-14 14:03:52,315 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-14 14:03:52,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 131 events. 0/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-07-14 14:03:52,320 INFO L116 LiptonReduction]: Number of co-enabled transitions 1612 [2022-07-14 14:04:05,360 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:04:13,725 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:04:35,702 WARN L233 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 290 DAG size of output: 288 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:04:54,549 WARN L233 SmtUtils]: Spent 14.79s on a formula simplification. DAG size of input: 290 DAG size of output: 288 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:05:01,933 WARN L233 SmtUtils]: Spent 7.38s on a formula simplification that was a NOOP. DAG size: 280 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-14 14:05:01,935 INFO L131 LiptonReduction]: Checked pairs total: 3245 [2022-07-14 14:05:01,935 INFO L133 LiptonReduction]: Total number of compositions: 123 [2022-07-14 14:05:01,940 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 21 transitions, 47 flow [2022-07-14 14:05:01,963 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 74 states, 70 states have (on average 1.8428571428571427) internal successors, (129), 73 states have internal predecessors, (129), 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) [2022-07-14 14:05:01,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:05:01,978 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4c87e6c2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@219335bb [2022-07-14 14:05:01,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-07-14 14:05:01,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 70 states have (on average 1.8428571428571427) internal successors, (129), 73 states have internal predecessors, (129), 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) [2022-07-14 14:05:01,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:05:01,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:01,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:05:01,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:05:01,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:01,988 INFO L85 PathProgramCache]: Analyzing trace with hash 445012, now seen corresponding path program 1 times [2022-07-14 14:05:01,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:01,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957529104] [2022-07-14 14:05:01,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:01,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:02,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:02,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:02,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957529104] [2022-07-14 14:05:02,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957529104] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:02,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:02,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:05:02,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713220944] [2022-07-14 14:05:02,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:02,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:02,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:02,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:02,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:02,220 INFO L87 Difference]: Start difference. First operand has 74 states, 70 states have (on average 1.8428571428571427) internal successors, (129), 73 states have internal predecessors, (129), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-14 14:05:02,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:02,308 INFO L93 Difference]: Finished difference Result 65 states and 112 transitions. [2022-07-14 14:05:02,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:02,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-07-14 14:05:02,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:02,314 INFO L225 Difference]: With dead ends: 65 [2022-07-14 14:05:02,314 INFO L226 Difference]: Without dead ends: 65 [2022-07-14 14:05:02,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:02,316 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:02,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:02,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-07-14 14:05:02,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-07-14 14:05:02,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 62 states have (on average 1.8064516129032258) internal successors, (112), 64 states have internal predecessors, (112), 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) [2022-07-14 14:05:02,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 112 transitions. [2022-07-14 14:05:02,345 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 112 transitions. Word has length 3 [2022-07-14 14:05:02,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:02,345 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 112 transitions. [2022-07-14 14:05:02,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-14 14:05:02,346 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 112 transitions. [2022-07-14 14:05:02,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:05:02,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:02,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:05:02,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:05:02,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:05:02,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash 445013, now seen corresponding path program 1 times [2022-07-14 14:05:02,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:02,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024727150] [2022-07-14 14:05:02,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:02,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:02,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:02,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:02,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024727150] [2022-07-14 14:05:02,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024727150] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:02,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:02,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:05:02,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501930159] [2022-07-14 14:05:02,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:02,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:02,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:02,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:02,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:02,438 INFO L87 Difference]: Start difference. First operand 65 states and 112 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-14 14:05:02,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:02,516 INFO L93 Difference]: Finished difference Result 56 states and 95 transitions. [2022-07-14 14:05:02,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:02,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-07-14 14:05:02,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:02,517 INFO L225 Difference]: With dead ends: 56 [2022-07-14 14:05:02,517 INFO L226 Difference]: Without dead ends: 56 [2022-07-14 14:05:02,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:02,518 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:02,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:02,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-07-14 14:05:02,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-07-14 14:05:02,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 54 states have (on average 1.7592592592592593) internal successors, (95), 55 states have internal predecessors, (95), 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) [2022-07-14 14:05:02,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 95 transitions. [2022-07-14 14:05:02,523 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 95 transitions. Word has length 3 [2022-07-14 14:05:02,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:02,526 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 95 transitions. [2022-07-14 14:05:02,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-14 14:05:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 95 transitions. [2022-07-14 14:05:02,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:05:02,527 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:02,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 14:05:02,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:05:02,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:05:02,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:02,530 INFO L85 PathProgramCache]: Analyzing trace with hash 372870372, now seen corresponding path program 1 times [2022-07-14 14:05:02,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:02,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487932279] [2022-07-14 14:05:02,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:02,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:02,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:02,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:02,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487932279] [2022-07-14 14:05:02,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487932279] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:02,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:02,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:05:02,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598222557] [2022-07-14 14:05:02,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:02,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:05:02,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:02,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:05:02,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:05:02,734 INFO L87 Difference]: Start difference. First operand 56 states and 95 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-07-14 14:05:02,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:02,902 INFO L93 Difference]: Finished difference Result 47 states and 78 transitions. [2022-07-14 14:05:02,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:05:02,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2022-07-14 14:05:02,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:02,903 INFO L225 Difference]: With dead ends: 47 [2022-07-14 14:05:02,903 INFO L226 Difference]: Without dead ends: 47 [2022-07-14 14:05:02,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:05:02,904 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:02,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:02,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-07-14 14:05:02,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-07-14 14:05:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.6956521739130435) internal successors, (78), 46 states have internal predecessors, (78), 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) [2022-07-14 14:05:02,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 78 transitions. [2022-07-14 14:05:02,908 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 78 transitions. Word has length 6 [2022-07-14 14:05:02,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:02,908 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 78 transitions. [2022-07-14 14:05:02,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-07-14 14:05:02,909 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 78 transitions. [2022-07-14 14:05:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:05:02,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:02,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 14:05:02,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:05:02,909 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:05:02,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:02,910 INFO L85 PathProgramCache]: Analyzing trace with hash 372870371, now seen corresponding path program 1 times [2022-07-14 14:05:02,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:02,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555066959] [2022-07-14 14:05:02,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:02,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:02,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:02,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555066959] [2022-07-14 14:05:02,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555066959] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:02,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:02,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:05:02,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110952808] [2022-07-14 14:05:03,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:03,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:05:03,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:03,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:05:03,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:05:03,001 INFO L87 Difference]: Start difference. First operand 47 states and 78 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-07-14 14:05:03,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:03,141 INFO L93 Difference]: Finished difference Result 38 states and 61 transitions. [2022-07-14 14:05:03,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:05:03,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2022-07-14 14:05:03,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:03,142 INFO L225 Difference]: With dead ends: 38 [2022-07-14 14:05:03,142 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 14:05:03,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:05:03,143 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:03,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:03,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 14:05:03,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 14:05:03,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-14 14:05:03,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 14:05:03,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2022-07-14 14:05:03,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:03,145 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:05:03,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-07-14 14:05:03,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 14:05:03,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 14:05:03,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-07-14 14:05:03,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-07-14 14:05:03,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-07-14 14:05:03,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-07-14 14:05:03,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-07-14 14:05:03,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-07-14 14:05:03,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-07-14 14:05:03,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-07-14 14:05:03,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-07-14 14:05:03,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 14:05:03,149 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-14 14:05:03,152 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-14 14:05:03,152 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 14:05:03,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:05:03 BasicIcfg [2022-07-14 14:05:03,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 14:05:03,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:05:03,155 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:05:03,155 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:05:03,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:03:52" (3/4) ... [2022-07-14 14:05:03,157 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-14 14:05:03,161 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-14 14:05:03,168 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-07-14 14:05:03,169 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-14 14:05:03,169 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-14 14:05:03,170 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-14 14:05:03,191 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:05:03,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:05:03,192 INFO L158 Benchmark]: Toolchain (without parser) took 72073.19ms. Allocated memory was 104.9MB in the beginning and 151.0MB in the end (delta: 46.1MB). Free memory was 71.5MB in the beginning and 48.9MB in the end (delta: 22.6MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2022-07-14 14:05:03,192 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory was 59.3MB in the beginning and 59.3MB in the end (delta: 23.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:05:03,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.44ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 51.3MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-14 14:05:03,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.83ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 51.3MB in the beginning and 100.5MB in the end (delta: -49.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2022-07-14 14:05:03,193 INFO L158 Benchmark]: Boogie Preprocessor took 16.64ms. Allocated memory is still 125.8MB. Free memory was 100.5MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:05:03,194 INFO L158 Benchmark]: RCFGBuilder took 477.82ms. Allocated memory is still 125.8MB. Free memory was 98.4MB in the beginning and 82.9MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-14 14:05:03,195 INFO L158 Benchmark]: TraceAbstraction took 71003.07ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 81.7MB in the beginning and 52.1MB in the end (delta: 29.6MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2022-07-14 14:05:03,195 INFO L158 Benchmark]: Witness Printer took 37.24ms. Allocated memory is still 151.0MB. Free memory was 52.1MB in the beginning and 48.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 14:05:03,197 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory was 59.3MB in the beginning and 59.3MB in the end (delta: 23.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 477.44ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 51.3MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.83ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 51.3MB in the beginning and 100.5MB in the end (delta: -49.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.64ms. Allocated memory is still 125.8MB. Free memory was 100.5MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.82ms. Allocated memory is still 125.8MB. Free memory was 98.4MB in the beginning and 82.9MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 71003.07ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 81.7MB in the beginning and 52.1MB in the end (delta: 29.6MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * Witness Printer took 37.24ms. Allocated memory is still 151.0MB. Free memory was 52.1MB in the beginning and 48.9MB 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: 69.7s, 136 PlacesBefore, 25 PlacesAfterwards, 132 TransitionsBefore, 21 TransitionsAfterwards, 1612 CoEnabledTransitionPairs, 8 FixpointIterations, 72 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 123 TotalNumberOfCompositions, 3245 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1954, positive: 1745, positive conditional: 0, positive unconditional: 1745, negative: 209, negative conditional: 0, negative unconditional: 209, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1111, positive: 1065, positive conditional: 0, positive unconditional: 1065, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1111, positive: 1053, positive conditional: 0, positive unconditional: 1053, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 79, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1954, positive: 680, positive conditional: 0, positive unconditional: 680, negative: 163, negative conditional: 0, negative unconditional: 163, unknown: 1111, unknown conditional: 0, unknown unconditional: 1111] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: 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 3 procedures, 166 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 70.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 69.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 423 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2022-07-14 14:05:03,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE