./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 07:20:05,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 07:20:05,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 07:20:05,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 07:20:05,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 07:20:05,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 07:20:05,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 07:20:05,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 07:20:05,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 07:20:05,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 07:20:05,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 07:20:05,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 07:20:05,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 07:20:05,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 07:20:05,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 07:20:05,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 07:20:05,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 07:20:05,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 07:20:05,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 07:20:05,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 07:20:05,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 07:20:05,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 07:20:05,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 07:20:05,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 07:20:05,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 07:20:05,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 07:20:05,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 07:20:05,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 07:20:05,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 07:20:05,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 07:20:05,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 07:20:05,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 07:20:05,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 07:20:05,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 07:20:05,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 07:20:05,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 07:20:05,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 07:20:05,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 07:20:05,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 07:20:05,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 07:20:05,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 07:20:05,461 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 07:20:05,492 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 07:20:05,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 07:20:05,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 07:20:05,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 07:20:05,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 07:20:05,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 07:20:05,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 07:20:05,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 07:20:05,500 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 07:20:05,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 07:20:05,501 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 07:20:05,501 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 07:20:05,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 07:20:05,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 07:20:05,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 07:20:05,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 07:20:05,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 07:20:05,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 07:20:05,503 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 07:20:05,503 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 07:20:05,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 07:20:05,503 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 07:20:05,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 07:20:05,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 07:20:05,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 07:20:05,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 07:20:05,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:20:05,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 07:20:05,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 07:20:05,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 07:20:05,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 07:20:05,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 07:20:05,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 07:20:05,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 07:20:05,506 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 07:20:05,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 07:20:05,506 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 07:20:05,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 07:20:05,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 07:20:05,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 07:20:05,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 07:20:05,843 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 07:20:05,844 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 07:20:05,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2023-09-01 07:20:07,037 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 07:20:07,302 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 07:20:07,303 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2023-09-01 07:20:07,316 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e2a816af/0b47701436294d36a512f650615110a3/FLAG58556457d [2023-09-01 07:20:07,330 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e2a816af/0b47701436294d36a512f650615110a3 [2023-09-01 07:20:07,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 07:20:07,334 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 07:20:07,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 07:20:07,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 07:20:07,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 07:20:07,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c40993e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07, skipping insertion in model container [2023-09-01 07:20:07,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 07:20:07,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 07:20:07,504 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2023-09-01 07:20:07,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:20:07,618 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 07:20:07,628 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2023-09-01 07:20:07,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:20:07,683 INFO L208 MainTranslator]: Completed translation [2023-09-01 07:20:07,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07 WrapperNode [2023-09-01 07:20:07,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 07:20:07,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 07:20:07,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 07:20:07,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 07:20:07,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,720 INFO L138 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 117 [2023-09-01 07:20:07,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 07:20:07,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 07:20:07,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 07:20:07,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 07:20:07,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,738 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 07:20:07,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 07:20:07,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 07:20:07,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 07:20:07,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (1/1) ... [2023-09-01 07:20:07,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:20:07,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:20:07,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 07:20:07,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 07:20:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 07:20:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 07:20:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 07:20:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 07:20:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 07:20:07,821 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 07:20:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 07:20:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 07:20:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 07:20:07,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 07:20:07,823 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 07:20:07,994 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 07:20:08,010 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 07:20:08,310 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 07:20:08,318 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 07:20:08,322 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 07:20:08,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:20:08 BoogieIcfgContainer [2023-09-01 07:20:08,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 07:20:08,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 07:20:08,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 07:20:08,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 07:20:08,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 07:20:07" (1/3) ... [2023-09-01 07:20:08,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a2eb3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:20:08, skipping insertion in model container [2023-09-01 07:20:08,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:20:07" (2/3) ... [2023-09-01 07:20:08,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a2eb3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:20:08, skipping insertion in model container [2023-09-01 07:20:08,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:20:08" (3/3) ... [2023-09-01 07:20:08,333 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2023-09-01 07:20:08,340 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 07:20:08,348 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 07:20:08,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 07:20:08,349 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 07:20:08,409 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 07:20:08,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 129 transitions, 263 flow [2023-09-01 07:20:08,513 INFO L130 PetriNetUnfolder]: 4/131 cut-off events. [2023-09-01 07:20:08,513 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:20:08,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 131 events. 4/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 96 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-09-01 07:20:08,518 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 129 transitions, 263 flow [2023-09-01 07:20:08,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 127 transitions, 257 flow [2023-09-01 07:20:08,529 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:20:08,549 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 127 transitions, 257 flow [2023-09-01 07:20:08,557 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 127 transitions, 257 flow [2023-09-01 07:20:08,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 257 flow [2023-09-01 07:20:08,585 INFO L130 PetriNetUnfolder]: 4/127 cut-off events. [2023-09-01 07:20:08,585 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:20:08,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 127 events. 4/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 88 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-09-01 07:20:08,588 INFO L119 LiptonReduction]: Number of co-enabled transitions 3136 [2023-09-01 07:20:12,499 INFO L134 LiptonReduction]: Checked pairs total: 9507 [2023-09-01 07:20:12,499 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-09-01 07:20:12,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 07:20:12,518 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;@222bcc4f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:20:12,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-09-01 07:20:12,523 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-09-01 07:20:12,523 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:20:12,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:20:12,524 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 07:20:12,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 07:20:12,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:20:12,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1238990732, now seen corresponding path program 1 times [2023-09-01 07:20:12,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:20:12,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052364699] [2023-09-01 07:20:12,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:20:12,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:20:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:20:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:20:12,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:20:12,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052364699] [2023-09-01 07:20:12,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052364699] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:20:12,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:20:12,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:20:12,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502041666] [2023-09-01 07:20:12,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:20:12,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:20:12,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:20:12,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:20:12,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:20:12,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 242 [2023-09-01 07:20:12,824 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:12,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:20:12,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 242 [2023-09-01 07:20:12,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:20:12,896 INFO L130 PetriNetUnfolder]: 97/258 cut-off events. [2023-09-01 07:20:12,896 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:20:12,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 258 events. 97/258 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1120 event pairs, 88 based on Foata normal form. 9/221 useless extension candidates. Maximal degree in co-relation 460. Up to 206 conditions per place. [2023-09-01 07:20:12,899 INFO L137 encePairwiseOnDemand]: 238/242 looper letters, 21 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-09-01 07:20:12,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 30 transitions, 107 flow [2023-09-01 07:20:12,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:20:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:20:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-09-01 07:20:12,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137741046831956 [2023-09-01 07:20:12,913 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-09-01 07:20:12,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-09-01 07:20:12,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:20:12,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-09-01 07:20:12,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:12,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:12,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:12,927 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 71 flow. Second operand 3 states and 373 transitions. [2023-09-01 07:20:12,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 30 transitions, 107 flow [2023-09-01 07:20:12,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:20:12,931 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 64 flow [2023-09-01 07:20:12,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2023-09-01 07:20:12,935 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-09-01 07:20:12,935 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 64 flow [2023-09-01 07:20:12,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:12,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:20:12,936 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 07:20:12,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 07:20:12,937 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 07:20:12,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:20:12,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1238990789, now seen corresponding path program 1 times [2023-09-01 07:20:12,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:20:12,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441832565] [2023-09-01 07:20:12,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:20:12,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:20:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:20:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:20:12,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:20:12,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441832565] [2023-09-01 07:20:12,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441832565] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:20:12,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:20:12,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:20:12,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452766554] [2023-09-01 07:20:12,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:20:12,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:20:12,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:20:12,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:20:12,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:20:13,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 242 [2023-09-01 07:20:13,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:20:13,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 242 [2023-09-01 07:20:13,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:20:13,053 INFO L130 PetriNetUnfolder]: 85/233 cut-off events. [2023-09-01 07:20:13,053 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:20:13,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 233 events. 85/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 984 event pairs, 77 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 415. Up to 182 conditions per place. [2023-09-01 07:20:13,055 INFO L137 encePairwiseOnDemand]: 240/242 looper letters, 14 selfloop transitions, 1 changer transitions 6/29 dead transitions. [2023-09-01 07:20:13,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 29 transitions, 104 flow [2023-09-01 07:20:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:20:13,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:20:13,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-09-01 07:20:13,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137741046831956 [2023-09-01 07:20:13,058 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-09-01 07:20:13,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-09-01 07:20:13,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:20:13,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-09-01 07:20:13,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,063 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,063 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 64 flow. Second operand 3 states and 373 transitions. [2023-09-01 07:20:13,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 29 transitions, 104 flow [2023-09-01 07:20:13,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:20:13,064 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 51 flow [2023-09-01 07:20:13,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-09-01 07:20:13,065 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-09-01 07:20:13,066 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 51 flow [2023-09-01 07:20:13,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:20:13,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:20:13,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 07:20:13,067 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 07:20:13,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:20:13,067 INFO L85 PathProgramCache]: Analyzing trace with hash -309011210, now seen corresponding path program 1 times [2023-09-01 07:20:13,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:20:13,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275254814] [2023-09-01 07:20:13,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:20:13,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:20:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:20:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:20:13,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:20:13,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275254814] [2023-09-01 07:20:13,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275254814] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:20:13,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:20:13,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:20:13,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516032596] [2023-09-01 07:20:13,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:20:13,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:20:13,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:20:13,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:20:13,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 07:20:13,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 242 [2023-09-01 07:20:13,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:20:13,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 242 [2023-09-01 07:20:13,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:20:13,305 INFO L130 PetriNetUnfolder]: 61/186 cut-off events. [2023-09-01 07:20:13,305 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:20:13,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 186 events. 61/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 748 event pairs, 28 based on Foata normal form. 8/185 useless extension candidates. Maximal degree in co-relation 334. Up to 80 conditions per place. [2023-09-01 07:20:13,306 INFO L137 encePairwiseOnDemand]: 237/242 looper letters, 17 selfloop transitions, 2 changer transitions 14/39 dead transitions. [2023-09-01 07:20:13,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 149 flow [2023-09-01 07:20:13,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 07:20:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 07:20:13,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 612 transitions. [2023-09-01 07:20:13,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5057851239669422 [2023-09-01 07:20:13,309 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 612 transitions. [2023-09-01 07:20:13,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 612 transitions. [2023-09-01 07:20:13,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:20:13,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 612 transitions. [2023-09-01 07:20:13,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.4) internal successors, (612), 5 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,315 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,315 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 51 flow. Second operand 5 states and 612 transitions. [2023-09-01 07:20:13,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 149 flow [2023-09-01 07:20:13,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:20:13,316 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 66 flow [2023-09-01 07:20:13,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=66, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-09-01 07:20:13,317 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-09-01 07:20:13,317 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 66 flow [2023-09-01 07:20:13,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:20:13,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:20:13,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 07:20:13,319 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 07:20:13,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:20:13,319 INFO L85 PathProgramCache]: Analyzing trace with hash -787326699, now seen corresponding path program 1 times [2023-09-01 07:20:13,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:20:13,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258008207] [2023-09-01 07:20:13,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:20:13,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:20:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:20:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:20:13,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:20:13,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258008207] [2023-09-01 07:20:13,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258008207] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:20:13,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:20:13,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:20:13,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991815104] [2023-09-01 07:20:13,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:20:13,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:20:13,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:20:13,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:20:13,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:20:13,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 242 [2023-09-01 07:20:13,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:20:13,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 242 [2023-09-01 07:20:13,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:20:13,477 INFO L130 PetriNetUnfolder]: 35/114 cut-off events. [2023-09-01 07:20:13,478 INFO L131 PetriNetUnfolder]: For 19/27 co-relation queries the response was YES. [2023-09-01 07:20:13,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 114 events. 35/114 cut-off events. For 19/27 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 355 event pairs, 14 based on Foata normal form. 8/122 useless extension candidates. Maximal degree in co-relation 233. Up to 61 conditions per place. [2023-09-01 07:20:13,484 INFO L137 encePairwiseOnDemand]: 234/242 looper letters, 18 selfloop transitions, 8 changer transitions 1/32 dead transitions. [2023-09-01 07:20:13,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 142 flow [2023-09-01 07:20:13,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:20:13,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:20:13,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2023-09-01 07:20:13,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-09-01 07:20:13,487 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 363 transitions. [2023-09-01 07:20:13,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 363 transitions. [2023-09-01 07:20:13,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:20:13,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 363 transitions. [2023-09-01 07:20:13,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,495 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,495 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 66 flow. Second operand 3 states and 363 transitions. [2023-09-01 07:20:13,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 142 flow [2023-09-01 07:20:13,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 126 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-09-01 07:20:13,497 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 90 flow [2023-09-01 07:20:13,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-09-01 07:20:13,499 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2023-09-01 07:20:13,499 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 90 flow [2023-09-01 07:20:13,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:20:13,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:20:13,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 07:20:13,501 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 07:20:13,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:20:13,502 INFO L85 PathProgramCache]: Analyzing trace with hash 558446029, now seen corresponding path program 1 times [2023-09-01 07:20:13,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:20:13,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877375038] [2023-09-01 07:20:13,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:20:13,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:20:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:20:13,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:20:13,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:20:13,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877375038] [2023-09-01 07:20:13,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877375038] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:20:13,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:20:13,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:20:13,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416813342] [2023-09-01 07:20:13,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:20:13,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:20:13,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:20:13,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:20:13,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:20:13,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 242 [2023-09-01 07:20:13,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:20:13,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 242 [2023-09-01 07:20:13,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:20:13,685 INFO L130 PetriNetUnfolder]: 32/106 cut-off events. [2023-09-01 07:20:13,686 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2023-09-01 07:20:13,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 106 events. 32/106 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 320 event pairs, 13 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 260. Up to 52 conditions per place. [2023-09-01 07:20:13,687 INFO L137 encePairwiseOnDemand]: 239/242 looper letters, 20 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2023-09-01 07:20:13,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 148 flow [2023-09-01 07:20:13,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:20:13,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:20:13,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2023-09-01 07:20:13,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47107438016528924 [2023-09-01 07:20:13,689 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 456 transitions. [2023-09-01 07:20:13,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 456 transitions. [2023-09-01 07:20:13,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:20:13,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 456 transitions. [2023-09-01 07:20:13,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,693 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,693 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 90 flow. Second operand 4 states and 456 transitions. [2023-09-01 07:20:13,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 148 flow [2023-09-01 07:20:13,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:20:13,695 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 84 flow [2023-09-01 07:20:13,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2023-09-01 07:20:13,695 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -2 predicate places. [2023-09-01 07:20:13,696 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 84 flow [2023-09-01 07:20:13,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:20:13,696 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:20:13,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 07:20:13,697 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 07:20:13,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:20:13,697 INFO L85 PathProgramCache]: Analyzing trace with hash 558446081, now seen corresponding path program 1 times [2023-09-01 07:20:13,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:20:13,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818110440] [2023-09-01 07:20:13,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:20:13,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:20:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:20:13,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:20:13,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:20:13,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818110440] [2023-09-01 07:20:13,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818110440] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:20:13,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:20:13,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 07:20:13,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337026464] [2023-09-01 07:20:13,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:20:13,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:20:13,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:20:13,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:20:13,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:20:13,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 242 [2023-09-01 07:20:13,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:13,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:20:13,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 242 [2023-09-01 07:20:13,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:20:14,011 INFO L130 PetriNetUnfolder]: 29/97 cut-off events. [2023-09-01 07:20:14,012 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-09-01 07:20:14,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 97 events. 29/97 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 244 event pairs, 10 based on Foata normal form. 2/99 useless extension candidates. Maximal degree in co-relation 226. Up to 48 conditions per place. [2023-09-01 07:20:14,013 INFO L137 encePairwiseOnDemand]: 236/242 looper letters, 19 selfloop transitions, 9 changer transitions 0/32 dead transitions. [2023-09-01 07:20:14,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 162 flow [2023-09-01 07:20:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:20:14,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:20:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2023-09-01 07:20:14,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.484504132231405 [2023-09-01 07:20:14,015 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 469 transitions. [2023-09-01 07:20:14,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 469 transitions. [2023-09-01 07:20:14,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:20:14,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 469 transitions. [2023-09-01 07:20:14,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:14,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:14,018 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:14,018 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 84 flow. Second operand 4 states and 469 transitions. [2023-09-01 07:20:14,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 162 flow [2023-09-01 07:20:14,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 159 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 07:20:14,020 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 125 flow [2023-09-01 07:20:14,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=125, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-09-01 07:20:14,021 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-09-01 07:20:14,021 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 125 flow [2023-09-01 07:20:14,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:20:14,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:20:14,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:20:14,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 07:20:14,022 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 07:20:14,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:20:14,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1037738816, now seen corresponding path program 1 times [2023-09-01 07:20:14,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:20:14,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058273504] [2023-09-01 07:20:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:20:14,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:20:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:20:14,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:20:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:20:14,074 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:20:14,075 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:20:14,076 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-09-01 07:20:14,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-09-01 07:20:14,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2023-09-01 07:20:14,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-09-01 07:20:14,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-09-01 07:20:14,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-09-01 07:20:14,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-09-01 07:20:14,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 07:20:14,079 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:20:14,084 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 07:20:14,084 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 07:20:14,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 07:20:14 BasicIcfg [2023-09-01 07:20:14,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 07:20:14,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 07:20:14,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 07:20:14,113 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 07:20:14,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:20:08" (3/4) ... [2023-09-01 07:20:14,115 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-09-01 07:20:14,153 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 07:20:14,153 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 07:20:14,154 INFO L158 Benchmark]: Toolchain (without parser) took 6819.80ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 71.2MB in the beginning and 56.0MB in the end (delta: 15.2MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2023-09-01 07:20:14,154 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 69.2MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:20:14,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.87ms. Allocated memory is still 94.4MB. Free memory was 70.9MB in the beginning and 51.2MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-09-01 07:20:14,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.71ms. Allocated memory is still 94.4MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 07:20:14,155 INFO L158 Benchmark]: Boogie Preprocessor took 19.64ms. Allocated memory is still 94.4MB. Free memory was 49.1MB in the beginning and 47.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:20:14,155 INFO L158 Benchmark]: RCFGBuilder took 583.95ms. Allocated memory is still 94.4MB. Free memory was 47.8MB in the beginning and 69.8MB in the end (delta: -22.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-09-01 07:20:14,156 INFO L158 Benchmark]: TraceAbstraction took 5785.66ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 69.3MB in the beginning and 61.3MB in the end (delta: 8.1MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2023-09-01 07:20:14,156 INFO L158 Benchmark]: Witness Printer took 40.18ms. Allocated memory is still 115.3MB. Free memory was 61.3MB in the beginning and 56.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 07:20:14,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 69.2MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.87ms. Allocated memory is still 94.4MB. Free memory was 70.9MB in the beginning and 51.2MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.71ms. Allocated memory is still 94.4MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.64ms. Allocated memory is still 94.4MB. Free memory was 49.1MB in the beginning and 47.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 583.95ms. Allocated memory is still 94.4MB. Free memory was 47.8MB in the beginning and 69.8MB in the end (delta: -22.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5785.66ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 69.3MB in the beginning and 61.3MB in the end (delta: 8.1MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Witness Printer took 40.18ms. Allocated memory is still 115.3MB. Free memory was 61.3MB in the beginning and 56.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 127 PlacesBefore, 35 PlacesAfterwards, 127 TransitionsBefore, 34 TransitionsAfterwards, 3136 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 113 TotalNumberOfCompositions, 9507 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3834, independent: 3474, independent conditional: 0, independent unconditional: 3474, dependent: 360, dependent conditional: 0, dependent unconditional: 360, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1717, independent: 1669, independent conditional: 0, independent unconditional: 1669, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3834, independent: 1805, independent conditional: 0, independent unconditional: 1805, dependent: 312, dependent conditional: 0, dependent unconditional: 312, unknown: 1717, unknown conditional: 0, unknown unconditional: 1717] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 701]: integer overflow possible integer overflow possible We found a FailurePath: [L682] 0 int g = 0; [L683] 0 int h = 0; [L684] 0 int i = 0; [L685] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L686] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_mutex_t C = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L710] 0 int x = __VERIFIER_nondet_int(); [L711] COND TRUE 0 x > -1000 [L712] 0 pthread_t id; [L713] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, id={6:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=2147483617] [L689] 1 int x = __VERIFIER_nondet_int(); [L690] 1 int y = __VERIFIER_nondet_int(); [L691] 1 int z = __VERIFIER_nondet_int(); [L692] COND TRUE 1 x < 1000 [L716] 0 i = 11 VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=11, id={6:0}, x=2147483617] [L717] 0 g = x [L718] EXPR 0 x - 17 [L718] 0 h = x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483600, i=11, id={6:0}, x=2147483617] [L721] 0 h = x VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, id={6:0}, x=2147483617] [L695] 1 x = g VAL [A={3:0}, B={4:0}, C={5:0}, arg={0:0}, arg={0:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=0, z=0] [L696] 1 y = h [L697] CALL 1 __VERIFIER_assert(y <= x) [L19] COND FALSE 1 !(!(cond)) [L697] RET 1 __VERIFIER_assert(y <= x) [L699] CALL 1 __VERIFIER_assert(x == y) [L19] COND FALSE 1 !(!(cond)) [L699] RET 1 __VERIFIER_assert(x == y) [L701] 1 x + 31 VAL [A={3:0}, B={4:0}, C={5:0}, arg={0:0}, arg={0:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=2147483617, z=0] - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 179 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 395 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 89 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 502 IncrementalHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 71 mSDtfsCounter, 502 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, InterpolantAutomatonStates: 22, 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, 0.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 259 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 RESULT: Ultimate proved your program to be incorrect! [2023-09-01 07:20:14,174 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)