./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_12-ptr_nr.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/goblint-regression/04-mutex_12-ptr_nr.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 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 --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 06:08:11,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:08:11,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:08:11,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:08:11,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:08:11,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:08:11,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:08:11,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:08:11,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:08:11,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:08:11,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:08:11,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:08:11,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:08:11,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:08:11,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:08:11,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:08:11,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:08:11,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:08:11,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:08:11,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:08:11,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:08:11,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:08:11,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:08:11,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:08:11,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:08:11,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:08:11,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:08:11,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:08:11,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:08:11,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:08:11,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:08:11,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:08:11,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:08:11,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:08:11,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:08:11,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:08:11,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:08:11,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:08:11,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:08:11,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:08:11,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:08:11,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:08:11,520 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:08:11,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:08:11,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:08:11,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:08:11,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:08:11,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:08:11,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:08:11,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:08:11,523 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:08:11,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:08:11,524 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:08:11,525 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:08:11,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:08:11,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:08:11,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:08:11,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:08:11,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:08:11,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:08:11,526 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:08:11,526 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:08:11,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:08:11,527 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:08:11,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:08:11,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:08:11,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:08:11,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:08:11,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:08:11,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:08:11,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:08:11,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:08:11,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:08:11,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:08:11,540 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:08:11,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:08:11,540 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:08:11,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:08:11,540 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:08:11,541 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:08:11,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:08:11,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:08:11,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:08:11,890 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:08:11,890 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:08:11,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_12-ptr_nr.i [2023-09-01 06:08:13,099 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:08:13,367 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:08:13,368 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_12-ptr_nr.i [2023-09-01 06:08:13,383 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c602f2cd/401ff41d88814a10ae2e38bb5d234ee6/FLAGfa68a3f04 [2023-09-01 06:08:13,404 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c602f2cd/401ff41d88814a10ae2e38bb5d234ee6 [2023-09-01 06:08:13,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:08:13,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:08:13,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:08:13,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:08:13,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:08:13,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:13,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1b7bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13, skipping insertion in model container [2023-09-01 06:08:13,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:13,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:08:13,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:08:13,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:08:13,873 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:08:13,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:08:13,995 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:08:13,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13 WrapperNode [2023-09-01 06:08:13,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:08:13,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:08:13,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:08:13,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:08:14,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:14,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:14,059 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2023-09-01 06:08:14,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:08:14,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:08:14,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:08:14,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:08:14,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:14,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:14,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:14,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:14,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:14,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:14,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:14,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:14,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:08:14,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:08:14,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:08:14,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:08:14,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (1/1) ... [2023-09-01 06:08:14,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:08:14,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:08:14,142 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 06:08:14,154 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 06:08:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:08:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:08:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 06:08:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:08:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:08:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:08:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:08:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:08:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:08:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:08:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:08:14,190 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 06:08:14,346 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:08:14,349 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:08:14,537 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:08:14,543 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:08:14,544 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 06:08:14,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:14 BoogieIcfgContainer [2023-09-01 06:08:14,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:08:14,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:08:14,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:08:14,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:08:14,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:08:13" (1/3) ... [2023-09-01 06:08:14,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2048486e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:08:14, skipping insertion in model container [2023-09-01 06:08:14,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:13" (2/3) ... [2023-09-01 06:08:14,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2048486e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:08:14, skipping insertion in model container [2023-09-01 06:08:14,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:14" (3/3) ... [2023-09-01 06:08:14,554 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_12-ptr_nr.i [2023-09-01 06:08:14,561 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:08:14,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:08:14,571 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 06:08:14,571 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:08:14,612 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 06:08:14,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 136 flow [2023-09-01 06:08:14,678 INFO L130 PetriNetUnfolder]: 0/63 cut-off events. [2023-09-01 06:08:14,686 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 06:08:14,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 63 events. 0/63 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-09-01 06:08:14,689 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 64 transitions, 136 flow [2023-09-01 06:08:14,695 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 56 transitions, 115 flow [2023-09-01 06:08:14,700 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:08:14,724 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 56 transitions, 115 flow [2023-09-01 06:08:14,728 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 56 transitions, 115 flow [2023-09-01 06:08:14,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 56 transitions, 115 flow [2023-09-01 06:08:14,754 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2023-09-01 06:08:14,757 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:14,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 0/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-09-01 06:08:14,759 INFO L119 LiptonReduction]: Number of co-enabled transitions 364 [2023-09-01 06:08:16,836 INFO L134 LiptonReduction]: Checked pairs total: 1155 [2023-09-01 06:08:16,836 INFO L136 LiptonReduction]: Total number of compositions: 45 [2023-09-01 06:08:16,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:08:16,859 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;@79c41f26, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:08:16,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-09-01 06:08:16,862 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-09-01 06:08:16,862 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:16,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:16,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 06:08:16,863 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 06:08:16,867 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:16,868 INFO L85 PathProgramCache]: Analyzing trace with hash 6697138, now seen corresponding path program 1 times [2023-09-01 06:08:16,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:16,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568597108] [2023-09-01 06:08:16,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:16,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:17,306 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 06:08:17,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:17,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568597108] [2023-09-01 06:08:17,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568597108] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:17,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:17,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:08:17,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600382111] [2023-09-01 06:08:17,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:17,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:08:17,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:17,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:08:17,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 06:08:17,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 109 [2023-09-01 06:08:17,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 33 flow. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 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 06:08:17,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:17,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 109 [2023-09-01 06:08:17,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:17,463 INFO L130 PetriNetUnfolder]: 14/51 cut-off events. [2023-09-01 06:08:17,464 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:17,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 51 events. 14/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 149 event pairs, 3 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 88. Up to 28 conditions per place. [2023-09-01 06:08:17,466 INFO L137 encePairwiseOnDemand]: 101/109 looper letters, 13 selfloop transitions, 5 changer transitions 4/24 dead transitions. [2023-09-01 06:08:17,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 24 transitions, 95 flow [2023-09-01 06:08:17,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:08:17,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:08:17,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 252 transitions. [2023-09-01 06:08:17,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5779816513761468 [2023-09-01 06:08:17,480 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 252 transitions. [2023-09-01 06:08:17,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 252 transitions. [2023-09-01 06:08:17,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:17,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 252 transitions. [2023-09-01 06:08:17,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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 06:08:17,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 06:08:17,491 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 06:08:17,493 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 33 flow. Second operand 4 states and 252 transitions. [2023-09-01 06:08:17,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 24 transitions, 95 flow [2023-09-01 06:08:17,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 24 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:08:17,498 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 66 flow [2023-09-01 06:08:17,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=66, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-09-01 06:08:17,502 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 4 predicate places. [2023-09-01 06:08:17,503 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 66 flow [2023-09-01 06:08:17,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 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 06:08:17,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:17,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:08:17,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:08:17,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 06:08:17,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:17,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1948919093, now seen corresponding path program 1 times [2023-09-01 06:08:17,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:17,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882785619] [2023-09-01 06:08:17,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:17,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:17,585 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 06:08:17,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:17,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882785619] [2023-09-01 06:08:17,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882785619] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:17,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:17,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:08:17,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924534675] [2023-09-01 06:08:17,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:17,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:08:17,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:17,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:08:17,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:08:17,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 109 [2023-09-01 06:08:17,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 06:08:17,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:17,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 109 [2023-09-01 06:08:17,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:17,626 INFO L130 PetriNetUnfolder]: 0/19 cut-off events. [2023-09-01 06:08:17,627 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2023-09-01 06:08:17,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 19 events. 0/19 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 31 event pairs, 0 based on Foata normal form. 6/23 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2023-09-01 06:08:17,627 INFO L137 encePairwiseOnDemand]: 105/109 looper letters, 10 selfloop transitions, 5 changer transitions 0/16 dead transitions. [2023-09-01 06:08:17,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 16 transitions, 91 flow [2023-09-01 06:08:17,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:08:17,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:08:17,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2023-09-01 06:08:17,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5718654434250765 [2023-09-01 06:08:17,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 187 transitions. [2023-09-01 06:08:17,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 187 transitions. [2023-09-01 06:08:17,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:17,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 187 transitions. [2023-09-01 06:08:17,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 06:08:17,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 06:08:17,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 06:08:17,633 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 66 flow. Second operand 3 states and 187 transitions. [2023-09-01 06:08:17,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 16 transitions, 91 flow [2023-09-01 06:08:17,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 16 transitions, 84 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-09-01 06:08:17,634 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 64 flow [2023-09-01 06:08:17,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2023-09-01 06:08:17,635 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2023-09-01 06:08:17,635 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 64 flow [2023-09-01 06:08:17,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 06:08:17,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:17,636 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:08:17,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:08:17,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 06:08:17,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:17,637 INFO L85 PathProgramCache]: Analyzing trace with hash 200573347, now seen corresponding path program 1 times [2023-09-01 06:08:17,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:17,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798850535] [2023-09-01 06:08:17,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:17,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:17,851 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 06:08:17,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:17,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798850535] [2023-09-01 06:08:17,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798850535] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:17,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:17,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 06:08:17,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315817829] [2023-09-01 06:08:17,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:17,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:08:17,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:17,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:08:17,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:08:17,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 109 [2023-09-01 06:08:17,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 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 06:08:17,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:17,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 109 [2023-09-01 06:08:17,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:17,941 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2023-09-01 06:08:17,941 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 06:08:17,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 18 events. 0/18 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 24 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-09-01 06:08:17,942 INFO L137 encePairwiseOnDemand]: 102/109 looper letters, 7 selfloop transitions, 7 changer transitions 2/18 dead transitions. [2023-09-01 06:08:17,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 100 flow [2023-09-01 06:08:17,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 06:08:17,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 06:08:17,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 374 transitions. [2023-09-01 06:08:17,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49017038007863695 [2023-09-01 06:08:17,945 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 374 transitions. [2023-09-01 06:08:17,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 374 transitions. [2023-09-01 06:08:17,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:17,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 374 transitions. [2023-09-01 06:08:17,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 53.42857142857143) internal successors, (374), 7 states have internal predecessors, (374), 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 06:08:17,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 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 06:08:17,950 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 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 06:08:17,950 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 64 flow. Second operand 7 states and 374 transitions. [2023-09-01 06:08:17,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 100 flow [2023-09-01 06:08:17,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:08:17,952 INFO L231 Difference]: Finished difference. Result has 28 places, 15 transitions, 69 flow [2023-09-01 06:08:17,952 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=69, PETRI_PLACES=28, PETRI_TRANSITIONS=15} [2023-09-01 06:08:17,953 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 9 predicate places. [2023-09-01 06:08:17,953 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 15 transitions, 69 flow [2023-09-01 06:08:17,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 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 06:08:17,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:17,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:08:17,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 06:08:17,954 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 06:08:17,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:17,955 INFO L85 PathProgramCache]: Analyzing trace with hash 259937136, now seen corresponding path program 1 times [2023-09-01 06:08:17,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:17,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325256393] [2023-09-01 06:08:17,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:17,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:18,046 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 06:08:18,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:18,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325256393] [2023-09-01 06:08:18,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325256393] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:18,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:18,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 06:08:18,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114566344] [2023-09-01 06:08:18,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:18,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:08:18,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:18,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:08:18,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:08:18,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 109 [2023-09-01 06:08:18,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 15 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 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 06:08:18,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:18,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 109 [2023-09-01 06:08:18,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:18,157 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2023-09-01 06:08:18,157 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-09-01 06:08:18,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 16 events. 0/16 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-09-01 06:08:18,158 INFO L137 encePairwiseOnDemand]: 102/109 looper letters, 6 selfloop transitions, 7 changer transitions 1/16 dead transitions. [2023-09-01 06:08:18,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 16 transitions, 98 flow [2023-09-01 06:08:18,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:08:18,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:08:18,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 314 transitions. [2023-09-01 06:08:18,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4801223241590214 [2023-09-01 06:08:18,163 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 314 transitions. [2023-09-01 06:08:18,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 314 transitions. [2023-09-01 06:08:18,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:18,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 314 transitions. [2023-09-01 06:08:18,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 52.333333333333336) internal successors, (314), 6 states have internal predecessors, (314), 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 06:08:18,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 06:08:18,172 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 06:08:18,172 INFO L175 Difference]: Start difference. First operand has 28 places, 15 transitions, 69 flow. Second operand 6 states and 314 transitions. [2023-09-01 06:08:18,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 16 transitions, 98 flow [2023-09-01 06:08:18,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 84 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-09-01 06:08:18,175 INFO L231 Difference]: Finished difference. Result has 27 places, 14 transitions, 65 flow [2023-09-01 06:08:18,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=65, PETRI_PLACES=27, PETRI_TRANSITIONS=14} [2023-09-01 06:08:18,176 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 8 predicate places. [2023-09-01 06:08:18,176 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 14 transitions, 65 flow [2023-09-01 06:08:18,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 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 06:08:18,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:18,177 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:08:18,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 06:08:18,177 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 06:08:18,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:18,177 INFO L85 PathProgramCache]: Analyzing trace with hash 259937170, now seen corresponding path program 1 times [2023-09-01 06:08:18,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:18,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656092434] [2023-09-01 06:08:18,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:18,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:18,296 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 06:08:18,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:18,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656092434] [2023-09-01 06:08:18,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656092434] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:18,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:18,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 06:08:18,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405400616] [2023-09-01 06:08:18,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:18,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 06:08:18,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:18,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 06:08:18,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-01 06:08:18,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 109 [2023-09-01 06:08:18,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 14 transitions, 65 flow. Second operand has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 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 06:08:18,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:18,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 109 [2023-09-01 06:08:18,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:18,411 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-09-01 06:08:18,412 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-09-01 06:08:18,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 14 events. 0/14 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-09-01 06:08:18,413 INFO L137 encePairwiseOnDemand]: 103/109 looper letters, 5 selfloop transitions, 3 changer transitions 6/14 dead transitions. [2023-09-01 06:08:18,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 14 transitions, 89 flow [2023-09-01 06:08:18,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 06:08:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 06:08:18,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 370 transitions. [2023-09-01 06:08:18,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4849279161205767 [2023-09-01 06:08:18,416 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 370 transitions. [2023-09-01 06:08:18,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 370 transitions. [2023-09-01 06:08:18,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:18,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 370 transitions. [2023-09-01 06:08:18,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 52.857142857142854) internal successors, (370), 7 states have internal predecessors, (370), 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 06:08:18,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 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 06:08:18,420 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 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 06:08:18,420 INFO L175 Difference]: Start difference. First operand has 27 places, 14 transitions, 65 flow. Second operand 7 states and 370 transitions. [2023-09-01 06:08:18,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 14 transitions, 89 flow [2023-09-01 06:08:18,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 14 transitions, 78 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-09-01 06:08:18,421 INFO L231 Difference]: Finished difference. Result has 28 places, 8 transitions, 38 flow [2023-09-01 06:08:18,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=38, PETRI_PLACES=28, PETRI_TRANSITIONS=8} [2023-09-01 06:08:18,424 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 9 predicate places. [2023-09-01 06:08:18,425 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 8 transitions, 38 flow [2023-09-01 06:08:18,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 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 06:08:18,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:18,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:08:18,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 06:08:18,426 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 06:08:18,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:18,426 INFO L85 PathProgramCache]: Analyzing trace with hash 200573375, now seen corresponding path program 1 times [2023-09-01 06:08:18,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:18,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553455024] [2023-09-01 06:08:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:18,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:18,600 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 06:08:18,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:18,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553455024] [2023-09-01 06:08:18,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553455024] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:18,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:18,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 06:08:18,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419169518] [2023-09-01 06:08:18,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:18,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 06:08:18,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:18,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 06:08:18,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-09-01 06:08:18,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 109 [2023-09-01 06:08:18,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 8 transitions, 38 flow. Second operand has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 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 06:08:18,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:18,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 109 [2023-09-01 06:08:18,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:18,696 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-09-01 06:08:18,696 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 06:08:18,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 8 events. 0/8 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-09-01 06:08:18,696 INFO L137 encePairwiseOnDemand]: 103/109 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2023-09-01 06:08:18,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 8 transitions, 54 flow [2023-09-01 06:08:18,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 06:08:18,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 06:08:18,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 373 transitions. [2023-09-01 06:08:18,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4888597640891219 [2023-09-01 06:08:18,699 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 373 transitions. [2023-09-01 06:08:18,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 373 transitions. [2023-09-01 06:08:18,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:18,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 373 transitions. [2023-09-01 06:08:18,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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 06:08:18,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 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 06:08:18,702 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 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 06:08:18,702 INFO L175 Difference]: Start difference. First operand has 28 places, 8 transitions, 38 flow. Second operand 7 states and 373 transitions. [2023-09-01 06:08:18,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 8 transitions, 54 flow [2023-09-01 06:08:18,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 8 transitions, 38 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-09-01 06:08:18,703 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2023-09-01 06:08:18,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=19, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2023-09-01 06:08:18,704 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, -2 predicate places. [2023-09-01 06:08:18,704 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2023-09-01 06:08:18,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 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 06:08:18,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-09-01 06:08:18,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-09-01 06:08:18,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-09-01 06:08:18,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-09-01 06:08:18,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-09-01 06:08:18,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-09-01 06:08:18,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-09-01 06:08:18,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 06:08:18,709 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-09-01 06:08:18,713 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:08:18,713 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:08:18,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:08:18 BasicIcfg [2023-09-01 06:08:18,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:08:18,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:08:18,717 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:08:18,717 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:08:18,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:14" (3/4) ... [2023-09-01 06:08:18,720 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:08:18,725 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:08:18,728 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-09-01 06:08:18,728 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 06:08:18,729 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:08:18,757 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:08:18,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:08:18,758 INFO L158 Benchmark]: Toolchain (without parser) took 5350.19ms. Allocated memory was 67.1MB in the beginning and 134.2MB in the end (delta: 67.1MB). Free memory was 40.0MB in the beginning and 71.9MB in the end (delta: -31.9MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2023-09-01 06:08:18,758 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 67.1MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:08:18,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.16ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 39.9MB in the beginning and 56.2MB in the end (delta: -16.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-09-01 06:08:18,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.52ms. Allocated memory is still 90.2MB. Free memory was 56.2MB in the beginning and 53.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:08:18,759 INFO L158 Benchmark]: Boogie Preprocessor took 37.28ms. Allocated memory is still 90.2MB. Free memory was 53.9MB in the beginning and 52.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:08:18,759 INFO L158 Benchmark]: RCFGBuilder took 446.97ms. Allocated memory is still 90.2MB. Free memory was 52.4MB in the beginning and 67.7MB in the end (delta: -15.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-09-01 06:08:18,760 INFO L158 Benchmark]: TraceAbstraction took 4168.39ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 67.0MB in the beginning and 75.1MB in the end (delta: -8.0MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2023-09-01 06:08:18,760 INFO L158 Benchmark]: Witness Printer took 40.44ms. Allocated memory is still 134.2MB. Free memory was 75.1MB in the beginning and 71.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:08:18,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 67.1MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 587.16ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 39.9MB in the beginning and 56.2MB in the end (delta: -16.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.52ms. Allocated memory is still 90.2MB. Free memory was 56.2MB in the beginning and 53.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.28ms. Allocated memory is still 90.2MB. Free memory was 53.9MB in the beginning and 52.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 446.97ms. Allocated memory is still 90.2MB. Free memory was 52.4MB in the beginning and 67.7MB in the end (delta: -15.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4168.39ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 67.0MB in the beginning and 75.1MB in the end (delta: -8.0MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Witness Printer took 40.44ms. Allocated memory is still 134.2MB. Free memory was 75.1MB in the beginning and 71.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 60 PlacesBefore, 19 PlacesAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 364 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, 1155 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 612, independent: 480, independent conditional: 0, independent unconditional: 480, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 223, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 612, independent: 277, independent conditional: 0, independent unconditional: 277, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 223, unknown conditional: 0, unknown unconditional: 223] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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, 81 locations, 7 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: 4.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 367 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 235 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 530 IncrementalHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 28 mSDtfsCounter, 530 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=3, InterpolantAutomatonStates: 34, 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, 0.8s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 06:08:18,778 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