./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_03-munge_racing.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/28-race_reach_03-munge_racing.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 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 14:05:10,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 14:05:10,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 14:05:10,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 14:05:10,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 14:05:10,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 14:05:10,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 14:05:10,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 14:05:10,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 14:05:10,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 14:05:10,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 14:05:10,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 14:05:10,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 14:05:10,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 14:05:10,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 14:05:10,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 14:05:10,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 14:05:10,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 14:05:10,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 14:05:10,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 14:05:10,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 14:05:10,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 14:05:10,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 14:05:10,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 14:05:10,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 14:05:10,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 14:05:10,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 14:05:10,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 14:05:10,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 14:05:10,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 14:05:10,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 14:05:10,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 14:05:10,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 14:05:10,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 14:05:10,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 14:05:10,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 14:05:10,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 14:05:10,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 14:05:10,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 14:05:10,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 14:05:10,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 14:05:10,654 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 14:05:10,698 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 14:05:10,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 14:05:10,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 14:05:10,699 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 14:05:10,700 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 14:05:10,700 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 14:05:10,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 14:05:10,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 14:05:10,701 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 14:05:10,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 14:05:10,702 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 14:05:10,702 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 14:05:10,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 14:05:10,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 14:05:10,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 14:05:10,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 14:05:10,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 14:05:10,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 14:05:10,704 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 14:05:10,704 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 14:05:10,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 14:05:10,704 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 14:05:10,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 14:05:10,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 14:05:10,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 14:05:10,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 14:05:10,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:05:10,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 14:05:10,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 14:05:10,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 14:05:10,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 14:05:10,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 14:05:10,706 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 14:05:10,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 14:05:10,706 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 14:05:10,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 14:05:10,707 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 14:05:10,707 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 14:05:10,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 14:05:10,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 14:05:10,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 14:05:10,998 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 14:05:10,998 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 14:05:10,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_03-munge_racing.i [2023-08-30 14:05:12,113 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 14:05:12,390 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 14:05:12,391 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_03-munge_racing.i [2023-08-30 14:05:12,411 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d00c12768/f48e39f142d94b6a9299f92867a30034/FLAGfb147974c [2023-08-30 14:05:12,429 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d00c12768/f48e39f142d94b6a9299f92867a30034 [2023-08-30 14:05:12,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 14:05:12,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 14:05:12,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 14:05:12,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 14:05:12,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 14:05:12,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:12,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180930a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12, skipping insertion in model container [2023-08-30 14:05:12,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:12,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 14:05:12,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 14:05:12,787 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/28-race_reach_03-munge_racing.i[30176,30189] [2023-08-30 14:05:12,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:05:12,829 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 14:05:12,860 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/28-race_reach_03-munge_racing.i[30176,30189] [2023-08-30 14:05:12,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:05:12,901 INFO L208 MainTranslator]: Completed translation [2023-08-30 14:05:12,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12 WrapperNode [2023-08-30 14:05:12,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 14:05:12,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 14:05:12,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 14:05:12,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 14:05:12,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:12,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:12,977 INFO L138 Inliner]: procedures = 172, calls = 43, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 217 [2023-08-30 14:05:12,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 14:05:12,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 14:05:12,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 14:05:12,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 14:05:12,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:12,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:12,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:13,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:13,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:13,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:13,020 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:13,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:13,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 14:05:13,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 14:05:13,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 14:05:13,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 14:05:13,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (1/1) ... [2023-08-30 14:05:13,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:05:13,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:05:13,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 14:05:13,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 14:05:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 14:05:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-30 14:05:13,100 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-30 14:05:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 14:05:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 14:05:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 14:05:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 14:05:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-30 14:05:13,103 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-30 14:05:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 14:05:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 14:05:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 14:05:13,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 14:05:13,105 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 14:05:13,208 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 14:05:13,210 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 14:05:13,580 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 14:05:13,587 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 14:05:13,588 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-08-30 14:05:13,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:05:13 BoogieIcfgContainer [2023-08-30 14:05:13,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 14:05:13,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 14:05:13,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 14:05:13,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 14:05:13,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:05:12" (1/3) ... [2023-08-30 14:05:13,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c328926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:05:13, skipping insertion in model container [2023-08-30 14:05:13,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:12" (2/3) ... [2023-08-30 14:05:13,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c328926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:05:13, skipping insertion in model container [2023-08-30 14:05:13,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:05:13" (3/3) ... [2023-08-30 14:05:13,608 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_03-munge_racing.i [2023-08-30 14:05:13,620 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 14:05:13,628 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 14:05:13,628 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-30 14:05:13,629 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 14:05:13,755 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-30 14:05:13,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 228 transitions, 478 flow [2023-08-30 14:05:13,958 INFO L130 PetriNetUnfolder]: 58/413 cut-off events. [2023-08-30 14:05:13,958 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 14:05:13,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 413 events. 58/413 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1795 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 219. Up to 8 conditions per place. [2023-08-30 14:05:13,970 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 228 transitions, 478 flow [2023-08-30 14:05:13,984 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 201 places, 228 transitions, 478 flow [2023-08-30 14:05:13,987 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:05:14,001 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 201 places, 228 transitions, 478 flow [2023-08-30 14:05:14,004 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 201 places, 228 transitions, 478 flow [2023-08-30 14:05:14,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 228 transitions, 478 flow [2023-08-30 14:05:14,069 INFO L130 PetriNetUnfolder]: 58/413 cut-off events. [2023-08-30 14:05:14,070 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 14:05:14,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 413 events. 58/413 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1795 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 219. Up to 8 conditions per place. [2023-08-30 14:05:14,088 INFO L119 LiptonReduction]: Number of co-enabled transitions 22204 [2023-08-30 14:05:18,113 INFO L134 LiptonReduction]: Checked pairs total: 46658 [2023-08-30 14:05:18,113 INFO L136 LiptonReduction]: Total number of compositions: 176 [2023-08-30 14:05:18,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:05:18,141 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;@7c5e52, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:05:18,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-30 14:05:18,147 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-30 14:05:18,153 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:05:18,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:05:18,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 14:05:18,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-08-30 14:05:18,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:05:18,159 INFO L85 PathProgramCache]: Analyzing trace with hash 28026132, now seen corresponding path program 1 times [2023-08-30 14:05:18,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:05:18,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820310887] [2023-08-30 14:05:18,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:05:18,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:05:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:05:18,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:05:18,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:05:18,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820310887] [2023-08-30 14:05:18,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820310887] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:05:18,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:05:18,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:05:18,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763244639] [2023-08-30 14:05:18,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:05:18,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:05:18,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:05:18,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:05:18,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:05:18,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 404 [2023-08-30 14:05:18,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 99 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:05:18,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:05:18,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 404 [2023-08-30 14:05:18,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:05:19,599 INFO L130 PetriNetUnfolder]: 7607/12692 cut-off events. [2023-08-30 14:05:19,600 INFO L131 PetriNetUnfolder]: For 150/150 co-relation queries the response was YES. [2023-08-30 14:05:19,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24628 conditions, 12692 events. 7607/12692 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 90653 event pairs, 3438 based on Foata normal form. 1874/10091 useless extension candidates. Maximal degree in co-relation 23592. Up to 11727 conditions per place. [2023-08-30 14:05:19,678 INFO L137 encePairwiseOnDemand]: 377/404 looper letters, 80 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-08-30 14:05:19,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 94 transitions, 374 flow [2023-08-30 14:05:19,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:05:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:05:19,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2023-08-30 14:05:19,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5676567656765676 [2023-08-30 14:05:19,692 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 688 transitions. [2023-08-30 14:05:19,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 688 transitions. [2023-08-30 14:05:19,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:05:19,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 688 transitions. [2023-08-30 14:05:19,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:05:19,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:05:19,706 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:05:19,708 INFO L175 Difference]: Start difference. First operand has 76 places, 99 transitions, 220 flow. Second operand 3 states and 688 transitions. [2023-08-30 14:05:19,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 94 transitions, 374 flow [2023-08-30 14:05:19,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 94 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 14:05:19,715 INFO L231 Difference]: Finished difference. Result has 76 places, 74 transitions, 178 flow [2023-08-30 14:05:19,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=76, PETRI_TRANSITIONS=74} [2023-08-30 14:05:19,719 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 0 predicate places. [2023-08-30 14:05:19,720 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 74 transitions, 178 flow [2023-08-30 14:05:19,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:05:19,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:05:19,721 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-30 14:05:19,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 14:05:19,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-08-30 14:05:19,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:05:19,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1163338606, now seen corresponding path program 1 times [2023-08-30 14:05:19,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:05:19,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320765796] [2023-08-30 14:05:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:05:19,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:05:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:05:19,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 14:05:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:05:19,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 14:05:19,773 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 14:05:19,774 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2023-08-30 14:05:19,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-08-30 14:05:19,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-08-30 14:05:19,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-08-30 14:05:19,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-08-30 14:05:19,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-08-30 14:05:19,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-08-30 14:05:19,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-08-30 14:05:19,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-08-30 14:05:19,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-08-30 14:05:19,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-08-30 14:05:19,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-08-30 14:05:19,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2023-08-30 14:05:19,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-08-30 14:05:19,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-08-30 14:05:19,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-08-30 14:05:19,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-08-30 14:05:19,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-08-30 14:05:19,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-08-30 14:05:19,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-08-30 14:05:19,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-08-30 14:05:19,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-08-30 14:05:19,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-08-30 14:05:19,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-08-30 14:05:19,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-08-30 14:05:19,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-08-30 14:05:19,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 14:05:19,782 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 14:05:19,784 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-30 14:05:19,784 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-30 14:05:19,856 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-08-30 14:05:19,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 356 transitions, 760 flow [2023-08-30 14:05:20,182 INFO L130 PetriNetUnfolder]: 197/1252 cut-off events. [2023-08-30 14:05:20,182 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 14:05:20,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1349 conditions, 1252 events. 197/1252 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7729 event pairs, 1 based on Foata normal form. 0/960 useless extension candidates. Maximal degree in co-relation 752. Up to 32 conditions per place. [2023-08-30 14:05:20,230 INFO L82 GeneralOperation]: Start removeDead. Operand has 305 places, 356 transitions, 760 flow [2023-08-30 14:05:20,268 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 305 places, 356 transitions, 760 flow [2023-08-30 14:05:20,268 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:05:20,268 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 305 places, 356 transitions, 760 flow [2023-08-30 14:05:20,269 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 305 places, 356 transitions, 760 flow [2023-08-30 14:05:20,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 356 transitions, 760 flow [2023-08-30 14:05:20,479 INFO L130 PetriNetUnfolder]: 197/1252 cut-off events. [2023-08-30 14:05:20,479 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 14:05:20,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1349 conditions, 1252 events. 197/1252 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7729 event pairs, 1 based on Foata normal form. 0/960 useless extension candidates. Maximal degree in co-relation 752. Up to 32 conditions per place. [2023-08-30 14:05:20,563 INFO L119 LiptonReduction]: Number of co-enabled transitions 76616 [2023-08-30 14:05:24,931 INFO L134 LiptonReduction]: Checked pairs total: 168490 [2023-08-30 14:05:24,932 INFO L136 LiptonReduction]: Total number of compositions: 255 [2023-08-30 14:05:24,933 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:05:24,934 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;@7c5e52, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:05:24,935 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-08-30 14:05:24,938 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-08-30 14:05:24,938 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:05:24,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:05:24,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:05:24,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-08-30 14:05:24,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:05:24,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1571828052, now seen corresponding path program 1 times [2023-08-30 14:05:24,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:05:24,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546101144] [2023-08-30 14:05:24,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:05:24,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:05:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:05:24,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:05:24,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:05:24,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546101144] [2023-08-30 14:05:24,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546101144] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:05:24,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:05:24,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:05:24,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315361485] [2023-08-30 14:05:24,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:05:24,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:05:25,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:05:25,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:05:25,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:05:25,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 611 [2023-08-30 14:05:25,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 175 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:05:25,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:05:25,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 611 [2023-08-30 14:05:25,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand