./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4208e364fc80ce33bd799516b7b127a7314c394860a88240a88c2fb8dc1fa8b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 10:54:10,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 10:54:10,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 10:54:10,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 10:54:10,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 10:54:10,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 10:54:10,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 10:54:10,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 10:54:10,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 10:54:10,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 10:54:10,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 10:54:10,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 10:54:10,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 10:54:10,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 10:54:10,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 10:54:10,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 10:54:10,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 10:54:10,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 10:54:10,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 10:54:10,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 10:54:10,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 10:54:10,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 10:54:10,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 10:54:10,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 10:54:10,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 10:54:10,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 10:54:10,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 10:54:10,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 10:54:10,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 10:54:10,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 10:54:10,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 10:54:10,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 10:54:10,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 10:54:10,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 10:54:10,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 10:54:10,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 10:54:10,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 10:54:10,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 10:54:10,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 10:54:10,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 10:54:10,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 10:54:10,486 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 10:54:10,519 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 10:54:10,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 10:54:10,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 10:54:10,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 10:54:10,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 10:54:10,521 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 10:54:10,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 10:54:10,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 10:54:10,522 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 10:54:10,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 10:54:10,523 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 10:54:10,524 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 10:54:10,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 10:54:10,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 10:54:10,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 10:54:10,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 10:54:10,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 10:54:10,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 10:54:10,525 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 10:54:10,525 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 10:54:10,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 10:54:10,525 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 10:54:10,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 10:54:10,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 10:54:10,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 10:54:10,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 10:54:10,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:54:10,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 10:54:10,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 10:54:10,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 10:54:10,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 10:54:10,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 10:54:10,528 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 10:54:10,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 10:54:10,528 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 10:54:10,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 10:54:10,528 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 10:54:10,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4208e364fc80ce33bd799516b7b127a7314c394860a88240a88c2fb8dc1fa8b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 10:54:10,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 10:54:10,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 10:54:10,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 10:54:10,846 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 10:54:10,846 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 10:54:10,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c [2023-08-30 10:54:12,119 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 10:54:12,325 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 10:54:12,326 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c [2023-08-30 10:54:12,331 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d732791f4/d49368288b50442294e7c621fd4fa826/FLAG5595f03f1 [2023-08-30 10:54:12,341 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d732791f4/d49368288b50442294e7c621fd4fa826 [2023-08-30 10:54:12,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 10:54:12,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 10:54:12,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 10:54:12,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 10:54:12,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 10:54:12,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e031a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12, skipping insertion in model container [2023-08-30 10:54:12,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 10:54:12,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 10:54:12,554 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c[3072,3085] [2023-08-30 10:54:12,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:54:12,575 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 10:54:12,613 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c[3072,3085] [2023-08-30 10:54:12,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:54:12,631 INFO L208 MainTranslator]: Completed translation [2023-08-30 10:54:12,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12 WrapperNode [2023-08-30 10:54:12,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 10:54:12,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 10:54:12,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 10:54:12,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 10:54:12,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,690 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 224 [2023-08-30 10:54:12,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 10:54:12,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 10:54:12,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 10:54:12,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 10:54:12,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,723 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 10:54:12,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 10:54:12,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 10:54:12,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 10:54:12,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (1/1) ... [2023-08-30 10:54:12,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:54:12,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:54:12,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 10:54:12,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 10:54:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 10:54:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 10:54:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 10:54:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 10:54:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 10:54:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-30 10:54:12,832 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-30 10:54:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 10:54:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 10:54:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 10:54:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 10:54:12,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 10:54:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 10:54:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 10:54:12,834 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 10:54:12,960 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 10:54:12,962 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 10:54:13,321 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 10:54:13,331 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 10:54:13,331 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 10:54:13,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:54:13 BoogieIcfgContainer [2023-08-30 10:54:13,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 10:54:13,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 10:54:13,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 10:54:13,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 10:54:13,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:54:12" (1/3) ... [2023-08-30 10:54:13,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2375c074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:54:13, skipping insertion in model container [2023-08-30 10:54:13,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:54:12" (2/3) ... [2023-08-30 10:54:13,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2375c074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:54:13, skipping insertion in model container [2023-08-30 10:54:13,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:54:13" (3/3) ... [2023-08-30 10:54:13,340 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2023-08-30 10:54:13,346 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 10:54:13,352 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 10:54:13,352 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-30 10:54:13,352 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 10:54:13,514 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-30 10:54:13,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 277 transitions, 578 flow [2023-08-30 10:54:13,685 INFO L130 PetriNetUnfolder]: 23/274 cut-off events. [2023-08-30 10:54:13,685 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 10:54:13,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 274 events. 23/274 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 750 event pairs, 0 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-30 10:54:13,695 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 277 transitions, 578 flow [2023-08-30 10:54:13,703 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 250 transitions, 515 flow [2023-08-30 10:54:13,707 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 10:54:13,721 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 250 transitions, 515 flow [2023-08-30 10:54:13,730 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 250 transitions, 515 flow [2023-08-30 10:54:13,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 250 transitions, 515 flow [2023-08-30 10:54:13,798 INFO L130 PetriNetUnfolder]: 21/250 cut-off events. [2023-08-30 10:54:13,798 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 10:54:13,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 250 events. 21/250 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 749 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-30 10:54:13,814 INFO L119 LiptonReduction]: Number of co-enabled transitions 26718 [2023-08-30 10:54:26,468 INFO L134 LiptonReduction]: Checked pairs total: 26184 [2023-08-30 10:54:26,468 INFO L136 LiptonReduction]: Total number of compositions: 340 [2023-08-30 10:54:26,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 10:54:26,484 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;@2fd480a3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 10:54:26,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-08-30 10:54:26,486 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 10:54:26,486 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:54:26,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:54:26,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:54:26,487 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:54:26,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:54:26,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1169565, now seen corresponding path program 1 times [2023-08-30 10:54:26,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:54:26,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907804351] [2023-08-30 10:54:26,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:54:26,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:54:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:54:26,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:54:26,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:54:26,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907804351] [2023-08-30 10:54:26,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907804351] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:54:26,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:54:26,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:54:26,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130151349] [2023-08-30 10:54:26,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:54:26,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:54:26,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:54:26,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:54:26,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:54:26,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 617 [2023-08-30 10:54:26,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:26,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:54:26,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 617 [2023-08-30 10:54:26,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:54:27,084 INFO L130 PetriNetUnfolder]: 793/1234 cut-off events. [2023-08-30 10:54:27,084 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-08-30 10:54:27,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2580 conditions, 1234 events. 793/1234 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 5468 event pairs, 793 based on Foata normal form. 0/510 useless extension candidates. Maximal degree in co-relation 2182. Up to 1234 conditions per place. [2023-08-30 10:54:27,091 INFO L137 encePairwiseOnDemand]: 608/617 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-30 10:54:27,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 24 transitions, 111 flow [2023-08-30 10:54:27,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:54:27,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:54:27,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-30 10:54:27,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43868179362506754 [2023-08-30 10:54:27,106 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-30 10:54:27,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-30 10:54:27,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:54:27,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-30 10:54:27,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,140 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,142 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 79 flow. Second operand 3 states and 812 transitions. [2023-08-30 10:54:27,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 24 transitions, 111 flow [2023-08-30 10:54:27,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 102 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 10:54:27,148 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 56 flow [2023-08-30 10:54:27,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=617, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2023-08-30 10:54:27,153 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -11 predicate places. [2023-08-30 10:54:27,153 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 56 flow [2023-08-30 10:54:27,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:54:27,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:54:27,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 10:54:27,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:54:27,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:54:27,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1169623, now seen corresponding path program 1 times [2023-08-30 10:54:27,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:54:27,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875100174] [2023-08-30 10:54:27,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:54:27,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:54:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:54:27,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:54:27,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:54:27,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875100174] [2023-08-30 10:54:27,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875100174] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:54:27,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:54:27,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:54:27,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449621611] [2023-08-30 10:54:27,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:54:27,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:54:27,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:54:27,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:54:27,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:54:27,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 617 [2023-08-30 10:54:27,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:54:27,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 617 [2023-08-30 10:54:27,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:54:27,483 INFO L130 PetriNetUnfolder]: 527/836 cut-off events. [2023-08-30 10:54:27,483 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-30 10:54:27,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 836 events. 527/836 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3477 event pairs, 527 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 1715. Up to 836 conditions per place. [2023-08-30 10:54:27,487 INFO L137 encePairwiseOnDemand]: 614/617 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-30 10:54:27,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 96 flow [2023-08-30 10:54:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:54:27,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:54:27,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 804 transitions. [2023-08-30 10:54:27,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4343598055105348 [2023-08-30 10:54:27,490 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 804 transitions. [2023-08-30 10:54:27,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 804 transitions. [2023-08-30 10:54:27,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:54:27,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 804 transitions. [2023-08-30 10:54:27,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,497 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,497 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 56 flow. Second operand 3 states and 804 transitions. [2023-08-30 10:54:27,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 96 flow [2023-08-30 10:54:27,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:54:27,498 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 53 flow [2023-08-30 10:54:27,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=617, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-08-30 10:54:27,499 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -12 predicate places. [2023-08-30 10:54:27,499 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 53 flow [2023-08-30 10:54:27,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:54:27,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:54:27,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 10:54:27,500 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:54:27,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:54:27,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1169622, now seen corresponding path program 1 times [2023-08-30 10:54:27,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:54:27,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46258037] [2023-08-30 10:54:27,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:54:27,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:54:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:54:27,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:54:27,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:54:27,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46258037] [2023-08-30 10:54:27,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46258037] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:54:27,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:54:27,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:54:27,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473941213] [2023-08-30 10:54:27,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:54:27,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:54:27,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:54:27,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:54:27,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:54:27,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 617 [2023-08-30 10:54:27,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:54:27,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 617 [2023-08-30 10:54:27,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:54:27,667 INFO L130 PetriNetUnfolder]: 323/528 cut-off events. [2023-08-30 10:54:27,667 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-08-30 10:54:27,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1095 conditions, 528 events. 323/528 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1995 event pairs, 323 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 1088. Up to 528 conditions per place. [2023-08-30 10:54:27,670 INFO L137 encePairwiseOnDemand]: 614/617 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-30 10:54:27,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 89 flow [2023-08-30 10:54:27,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:54:27,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:54:27,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 802 transitions. [2023-08-30 10:54:27,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43327930848190166 [2023-08-30 10:54:27,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 802 transitions. [2023-08-30 10:54:27,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 802 transitions. [2023-08-30 10:54:27,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:54:27,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 802 transitions. [2023-08-30 10:54:27,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,680 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 53 flow. Second operand 3 states and 802 transitions. [2023-08-30 10:54:27,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 89 flow [2023-08-30 10:54:27,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 20 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:54:27,681 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 50 flow [2023-08-30 10:54:27,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=617, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-30 10:54:27,682 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -13 predicate places. [2023-08-30 10:54:27,682 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 50 flow [2023-08-30 10:54:27,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:54:27,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:54:27,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 10:54:27,683 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:54:27,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:54:27,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1169624, now seen corresponding path program 1 times [2023-08-30 10:54:27,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:54:27,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188133628] [2023-08-30 10:54:27,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:54:27,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:54:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:54:27,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:54:27,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:54:27,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188133628] [2023-08-30 10:54:27,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188133628] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:54:27,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:54:27,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:54:27,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115186277] [2023-08-30 10:54:27,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:54:27,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:54:27,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:54:27,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:54:27,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:54:27,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 617 [2023-08-30 10:54:27,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:54:27,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 617 [2023-08-30 10:54:27,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:54:27,832 INFO L130 PetriNetUnfolder]: 173/298 cut-off events. [2023-08-30 10:54:27,832 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-30 10:54:27,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 298 events. 173/298 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1002 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 613. Up to 298 conditions per place. [2023-08-30 10:54:27,834 INFO L137 encePairwiseOnDemand]: 614/617 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-30 10:54:27,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 82 flow [2023-08-30 10:54:27,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:54:27,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:54:27,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2023-08-30 10:54:27,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4321988114532685 [2023-08-30 10:54:27,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 800 transitions. [2023-08-30 10:54:27,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 800 transitions. [2023-08-30 10:54:27,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:54:27,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 800 transitions. [2023-08-30 10:54:27,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.6666666666667) internal successors, (800), 3 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,843 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 50 flow. Second operand 3 states and 800 transitions. [2023-08-30 10:54:27,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 82 flow [2023-08-30 10:54:27,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 81 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:54:27,845 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 47 flow [2023-08-30 10:54:27,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=617, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2023-08-30 10:54:27,845 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -14 predicate places. [2023-08-30 10:54:27,846 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 47 flow [2023-08-30 10:54:27,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:54:27,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 10:54:27,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 10:54:27,847 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:54:27,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:54:27,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1123938464, now seen corresponding path program 1 times [2023-08-30 10:54:27,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:54:27,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423862063] [2023-08-30 10:54:27,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:54:27,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:54:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:54:27,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:54:27,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:54:27,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423862063] [2023-08-30 10:54:27,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423862063] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:54:27,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:54:27,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:54:27,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516759135] [2023-08-30 10:54:27,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:54:27,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:54:27,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:54:27,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:54:27,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:54:27,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 617 [2023-08-30 10:54:27,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:54:27,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 617 [2023-08-30 10:54:27,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:54:27,957 INFO L130 PetriNetUnfolder]: 93/170 cut-off events. [2023-08-30 10:54:27,958 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 10:54:27,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 170 events. 93/170 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 471 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 353. Up to 170 conditions per place. [2023-08-30 10:54:27,959 INFO L137 encePairwiseOnDemand]: 614/617 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-30 10:54:27,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 75 flow [2023-08-30 10:54:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:54:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:54:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 798 transitions. [2023-08-30 10:54:27,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43111831442463533 [2023-08-30 10:54:27,962 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 798 transitions. [2023-08-30 10:54:27,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 798 transitions. [2023-08-30 10:54:27,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:54:27,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 798 transitions. [2023-08-30 10:54:27,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,969 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 47 flow. Second operand 3 states and 798 transitions. [2023-08-30 10:54:27,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 75 flow [2023-08-30 10:54:27,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:54:27,970 INFO L231 Difference]: Finished difference. Result has 27 places, 16 transitions, 44 flow [2023-08-30 10:54:27,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=617, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2023-08-30 10:54:27,971 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -15 predicate places. [2023-08-30 10:54:27,971 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 44 flow [2023-08-30 10:54:27,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:27,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:54:27,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 10:54:27,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 10:54:27,972 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:54:27,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:54:27,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1123938424, now seen corresponding path program 1 times [2023-08-30 10:54:27,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:54:27,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85033601] [2023-08-30 10:54:27,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:54:27,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:54:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:54:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:54:28,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:54:28,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85033601] [2023-08-30 10:54:28,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85033601] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:54:28,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:54:28,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:54:28,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924270655] [2023-08-30 10:54:28,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:54:28,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:54:28,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:54:28,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:54:28,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:54:28,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 617 [2023-08-30 10:54:28,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:28,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:54:28,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 617 [2023-08-30 10:54:28,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:54:28,052 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2023-08-30 10:54:28,052 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 10:54:28,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 78 events. 37/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 151 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 165. Up to 78 conditions per place. [2023-08-30 10:54:28,053 INFO L137 encePairwiseOnDemand]: 614/617 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-08-30 10:54:28,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 14 transitions, 68 flow [2023-08-30 10:54:28,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:54:28,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:54:28,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 796 transitions. [2023-08-30 10:54:28,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43003781739600216 [2023-08-30 10:54:28,056 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 796 transitions. [2023-08-30 10:54:28,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 796 transitions. [2023-08-30 10:54:28,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:54:28,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 796 transitions. [2023-08-30 10:54:28,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:28,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:28,063 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:28,063 INFO L175 Difference]: Start difference. First operand has 27 places, 16 transitions, 44 flow. Second operand 3 states and 796 transitions. [2023-08-30 10:54:28,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 14 transitions, 68 flow [2023-08-30 10:54:28,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 14 transitions, 67 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:54:28,064 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-30 10:54:28,064 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=617, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-30 10:54:28,064 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -16 predicate places. [2023-08-30 10:54:28,065 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-30 10:54:28,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:54:28,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2023-08-30 10:54:28,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2023-08-30 10:54:28,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2023-08-30 10:54:28,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2023-08-30 10:54:28,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2023-08-30 10:54:28,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2023-08-30 10:54:28,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2023-08-30 10:54:28,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2023-08-30 10:54:28,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2023-08-30 10:54:28,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2023-08-30 10:54:28,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2023-08-30 10:54:28,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2023-08-30 10:54:28,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2023-08-30 10:54:28,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2023-08-30 10:54:28,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2023-08-30 10:54:28,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2023-08-30 10:54:28,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2023-08-30 10:54:28,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2023-08-30 10:54:28,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2023-08-30 10:54:28,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2023-08-30 10:54:28,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2023-08-30 10:54:28,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2023-08-30 10:54:28,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2023-08-30 10:54:28,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2023-08-30 10:54:28,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2023-08-30 10:54:28,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2023-08-30 10:54:28,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2023-08-30 10:54:28,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2023-08-30 10:54:28,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2023-08-30 10:54:28,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2023-08-30 10:54:28,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2023-08-30 10:54:28,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2023-08-30 10:54:28,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2023-08-30 10:54:28,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2023-08-30 10:54:28,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2023-08-30 10:54:28,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2023-08-30 10:54:28,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2023-08-30 10:54:28,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2023-08-30 10:54:28,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2023-08-30 10:54:28,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 10:54:28,076 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 10:54:28,080 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 10:54:28,080 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 10:54:28,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:54:28 BasicIcfg [2023-08-30 10:54:28,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 10:54:28,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 10:54:28,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 10:54:28,084 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 10:54:28,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:54:13" (3/4) ... [2023-08-30 10:54:28,086 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 10:54:28,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 10:54:28,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 10:54:28,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-30 10:54:28,094 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 10:54:28,095 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 10:54:28,095 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 10:54:28,100 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 10:54:28,129 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 10:54:28,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 10:54:28,130 INFO L158 Benchmark]: Toolchain (without parser) took 15785.95ms. Allocated memory was 69.2MB in the beginning and 146.8MB in the end (delta: 77.6MB). Free memory was 47.0MB in the beginning and 111.4MB in the end (delta: -64.4MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2023-08-30 10:54:28,130 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 34.1MB in the beginning and 34.1MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 10:54:28,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.05ms. Allocated memory is still 69.2MB. Free memory was 46.7MB in the beginning and 35.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 10:54:28,131 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.79ms. Allocated memory is still 69.2MB. Free memory was 35.3MB in the beginning and 32.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:54:28,131 INFO L158 Benchmark]: Boogie Preprocessor took 50.67ms. Allocated memory is still 69.2MB. Free memory was 32.9MB in the beginning and 48.7MB in the end (delta: -15.8MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2023-08-30 10:54:28,131 INFO L158 Benchmark]: RCFGBuilder took 584.96ms. Allocated memory is still 69.2MB. Free memory was 48.7MB in the beginning and 44.5MB in the end (delta: 4.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-08-30 10:54:28,132 INFO L158 Benchmark]: TraceAbstraction took 14748.56ms. Allocated memory was 69.2MB in the beginning and 146.8MB in the end (delta: 77.6MB). Free memory was 43.9MB in the beginning and 47.1MB in the end (delta: -3.2MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2023-08-30 10:54:28,132 INFO L158 Benchmark]: Witness Printer took 46.09ms. Allocated memory is still 146.8MB. Free memory was 47.1MB in the beginning and 111.4MB in the end (delta: -64.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:54:28,133 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 56.6MB. Free memory was 34.1MB in the beginning and 34.1MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.05ms. Allocated memory is still 69.2MB. Free memory was 46.7MB in the beginning and 35.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.79ms. Allocated memory is still 69.2MB. Free memory was 35.3MB in the beginning and 32.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.67ms. Allocated memory is still 69.2MB. Free memory was 32.9MB in the beginning and 48.7MB in the end (delta: -15.8MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * RCFGBuilder took 584.96ms. Allocated memory is still 69.2MB. Free memory was 48.7MB in the beginning and 44.5MB in the end (delta: 4.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 14748.56ms. Allocated memory was 69.2MB in the beginning and 146.8MB in the end (delta: 77.6MB). Free memory was 43.9MB in the beginning and 47.1MB in the end (delta: -3.2MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. * Witness Printer took 46.09ms. Allocated memory is still 146.8MB. Free memory was 47.1MB in the beginning and 111.4MB in the end (delta: -64.4MB). 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: 12.7s, 239 PlacesBefore, 42 PlacesAfterwards, 250 TransitionsBefore, 32 TransitionsAfterwards, 26718 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 215 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 60 ConcurrentYvCompositions, 21 ChoiceCompositions, 340 TotalNumberOfCompositions, 26184 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26184, independent: 26184, independent conditional: 0, independent unconditional: 26184, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 16148, independent: 16148, independent conditional: 0, independent unconditional: 16148, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 26184, independent: 10036, independent conditional: 0, independent unconditional: 10036, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 16148, unknown conditional: 0, unknown unconditional: 16148] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 87, Positive conditional cache size: 0, Positive unconditional cache size: 87, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: 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 7 procedures, 423 locations, 39 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: 14.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 194 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 12 mSDtfsCounter, 194 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 10:54:28,149 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