./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_04-munge_racefree.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_04-munge_racefree.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 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b --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 14:05:11,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 14:05:11,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 14:05:11,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 14:05:11,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 14:05:11,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 14:05:11,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 14:05:11,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 14:05:11,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 14:05:11,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 14:05:11,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 14:05:11,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 14:05:11,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 14:05:11,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 14:05:11,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 14:05:11,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 14:05:11,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 14:05:11,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 14:05:11,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 14:05:11,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 14:05:11,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 14:05:11,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 14:05:11,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 14:05:11,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 14:05:11,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 14:05:11,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 14:05:11,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 14:05:11,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 14:05:11,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 14:05:11,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 14:05:11,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 14:05:11,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 14:05:11,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 14:05:11,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 14:05:11,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 14:05:11,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 14:05:11,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 14:05:11,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 14:05:11,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 14:05:11,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 14:05:11,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 14:05:11,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 14:05:11,776 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 14:05:11,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 14:05:11,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 14:05:11,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 14:05:11,782 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 14:05:11,783 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 14:05:11,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 14:05:11,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 14:05:11,783 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 14:05:11,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 14:05:11,784 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 14:05:11,784 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 14:05:11,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 14:05:11,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 14:05:11,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 14:05:11,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 14:05:11,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 14:05:11,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 14:05:11,785 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 14:05:11,785 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 14:05:11,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 14:05:11,786 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 14:05:11,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 14:05:11,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 14:05:11,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 14:05:11,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 14:05:11,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:05:11,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 14:05:11,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 14:05:11,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 14:05:11,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 14:05:11,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 14:05:11,787 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 14:05:11,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 14:05:11,788 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 14:05:11,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 14:05:11,788 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 14:05:11,788 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 14:05:12,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 14:05:12,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 14:05:12,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 14:05:12,057 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 14:05:12,058 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 14:05:12,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_04-munge_racefree.i [2023-08-30 14:05:13,054 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 14:05:13,274 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 14:05:13,274 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_04-munge_racefree.i [2023-08-30 14:05:13,297 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c6f103e/f2a8c393545c47349dc0c5002295895a/FLAGab32fb8dc [2023-08-30 14:05:13,307 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c6f103e/f2a8c393545c47349dc0c5002295895a [2023-08-30 14:05:13,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 14:05:13,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 14:05:13,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 14:05:13,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 14:05:13,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 14:05:13,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5794f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13, skipping insertion in model container [2023-08-30 14:05:13,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 14:05:13,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 14:05:13,606 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_04-munge_racefree.i[30176,30189] [2023-08-30 14:05:13,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:05:13,653 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 14:05:13,682 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_04-munge_racefree.i[30176,30189] [2023-08-30 14:05:13,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:05:13,724 INFO L208 MainTranslator]: Completed translation [2023-08-30 14:05:13,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13 WrapperNode [2023-08-30 14:05:13,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 14:05:13,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 14:05:13,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 14:05:13,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 14:05:13,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,762 INFO L138 Inliner]: procedures = 172, calls = 37, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 218 [2023-08-30 14:05:13,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 14:05:13,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 14:05:13,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 14:05:13,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 14:05:13,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,816 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 14:05:13,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 14:05:13,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 14:05:13,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 14:05:13,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (1/1) ... [2023-08-30 14:05:13,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:05:13,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:05:13,856 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 14:05:13,863 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 14:05:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 14:05:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-30 14:05:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-30 14:05:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 14:05:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 14:05:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 14:05:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 14:05:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-30 14:05:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-30 14:05:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 14:05:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 14:05:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 14:05:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 14:05:13,880 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 14:05:13,963 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 14:05:13,964 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 14:05:14,254 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 14:05:14,263 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 14:05:14,266 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-08-30 14:05:14,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:05:14 BoogieIcfgContainer [2023-08-30 14:05:14,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 14:05:14,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 14:05:14,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 14:05:14,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 14:05:14,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:05:13" (1/3) ... [2023-08-30 14:05:14,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75dad12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:05:14, skipping insertion in model container [2023-08-30 14:05:14,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:05:13" (2/3) ... [2023-08-30 14:05:14,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75dad12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:05:14, skipping insertion in model container [2023-08-30 14:05:14,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:05:14" (3/3) ... [2023-08-30 14:05:14,278 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_04-munge_racefree.i [2023-08-30 14:05:14,283 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 14:05:14,289 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 14:05:14,289 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-30 14:05:14,290 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 14:05:14,395 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-30 14:05:14,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 230 transitions, 482 flow [2023-08-30 14:05:14,545 INFO L130 PetriNetUnfolder]: 58/415 cut-off events. [2023-08-30 14:05:14,545 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 14:05:14,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 415 events. 58/415 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1790 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 219. Up to 8 conditions per place. [2023-08-30 14:05:14,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 203 places, 230 transitions, 482 flow [2023-08-30 14:05:14,573 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 230 transitions, 482 flow [2023-08-30 14:05:14,576 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:05:14,585 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 230 transitions, 482 flow [2023-08-30 14:05:14,587 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 230 transitions, 482 flow [2023-08-30 14:05:14,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 230 transitions, 482 flow [2023-08-30 14:05:14,628 INFO L130 PetriNetUnfolder]: 58/415 cut-off events. [2023-08-30 14:05:14,628 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 14:05:14,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 415 events. 58/415 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1790 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 219. Up to 8 conditions per place. [2023-08-30 14:05:14,640 INFO L119 LiptonReduction]: Number of co-enabled transitions 22204 [2023-08-30 14:05:17,768 INFO L134 LiptonReduction]: Checked pairs total: 46593 [2023-08-30 14:05:17,769 INFO L136 LiptonReduction]: Total number of compositions: 177 [2023-08-30 14:05:17,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:05:17,783 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;@29e6e5ee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:05:17,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-30 14:05:17,787 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-30 14:05:17,787 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:05:17,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:05:17,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 14:05:17,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-08-30 14:05:17,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:05:17,792 INFO L85 PathProgramCache]: Analyzing trace with hash 28179061, now seen corresponding path program 1 times [2023-08-30 14:05:17,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:05:17,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974196880] [2023-08-30 14:05:17,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:05:17,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:05:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:05:17,955 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 14:05:17,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:05:17,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974196880] [2023-08-30 14:05:17,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974196880] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:05:17,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:05:17,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:05:17,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701373087] [2023-08-30 14:05:17,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:05:17,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:05:17,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:05:17,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:05:17,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:05:17,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 407 [2023-08-30 14:05:17,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 99 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 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 14:05:17,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:05:17,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 407 [2023-08-30 14:05:17,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:05:18,787 INFO L130 PetriNetUnfolder]: 7607/12672 cut-off events. [2023-08-30 14:05:18,787 INFO L131 PetriNetUnfolder]: For 152/152 co-relation queries the response was YES. [2023-08-30 14:05:18,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24588 conditions, 12672 events. 7607/12672 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 89741 event pairs, 3438 based on Foata normal form. 1874/10071 useless extension candidates. Maximal degree in co-relation 23552. Up to 11727 conditions per place. [2023-08-30 14:05:18,842 INFO L137 encePairwiseOnDemand]: 380/407 looper letters, 80 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-08-30 14:05:18,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 94 transitions, 374 flow [2023-08-30 14:05:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:05:18,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:05:18,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2023-08-30 14:05:18,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5683865683865684 [2023-08-30 14:05:18,853 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 694 transitions. [2023-08-30 14:05:18,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 694 transitions. [2023-08-30 14:05:18,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:05:18,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 694 transitions. [2023-08-30 14:05:18,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 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 14:05:18,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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 14:05:18,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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 14:05:18,866 INFO L175 Difference]: Start difference. First operand has 76 places, 99 transitions, 220 flow. Second operand 3 states and 694 transitions. [2023-08-30 14:05:18,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 94 transitions, 374 flow [2023-08-30 14:05:18,869 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 14:05:18,871 INFO L231 Difference]: Finished difference. Result has 76 places, 74 transitions, 178 flow [2023-08-30 14:05:18,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, 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 14:05:18,874 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 0 predicate places. [2023-08-30 14:05:18,875 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 74 transitions, 178 flow [2023-08-30 14:05:18,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 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 14:05:18,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:05:18,875 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-30 14:05:18,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 14:05:18,876 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 14:05:18,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:05:18,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1310299659, now seen corresponding path program 1 times [2023-08-30 14:05:18,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:05:18,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901941480] [2023-08-30 14:05:18,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:05:18,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:05:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:05:18,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 14:05:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:05:18,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 14:05:18,919 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 14:05:18,920 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2023-08-30 14:05:18,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-08-30 14:05:18,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-08-30 14:05:18,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-08-30 14:05:18,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-08-30 14:05:18,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-08-30 14:05:18,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-08-30 14:05:18,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-08-30 14:05:18,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-08-30 14:05:18,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-08-30 14:05:18,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-08-30 14:05:18,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-08-30 14:05:18,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2023-08-30 14:05:18,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-08-30 14:05:18,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-08-30 14:05:18,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-08-30 14:05:18,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-08-30 14:05:18,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-08-30 14:05:18,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-08-30 14:05:18,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-08-30 14:05:18,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-08-30 14:05:18,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-08-30 14:05:18,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-08-30 14:05:18,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-08-30 14:05:18,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-08-30 14:05:18,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-08-30 14:05:18,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 14:05:18,926 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 14:05:18,928 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-30 14:05:18,928 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-30 14:05:18,973 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-08-30 14:05:18,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 307 places, 358 transitions, 764 flow [2023-08-30 14:05:19,130 INFO L130 PetriNetUnfolder]: 197/1254 cut-off events. [2023-08-30 14:05:19,130 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 14:05:19,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 1254 events. 197/1254 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7718 event pairs, 1 based on Foata normal form. 0/962 useless extension candidates. Maximal degree in co-relation 754. Up to 32 conditions per place. [2023-08-30 14:05:19,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 307 places, 358 transitions, 764 flow [2023-08-30 14:05:19,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 307 places, 358 transitions, 764 flow [2023-08-30 14:05:19,156 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:05:19,156 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 307 places, 358 transitions, 764 flow [2023-08-30 14:05:19,156 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 307 places, 358 transitions, 764 flow [2023-08-30 14:05:19,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 307 places, 358 transitions, 764 flow [2023-08-30 14:05:19,312 INFO L130 PetriNetUnfolder]: 197/1254 cut-off events. [2023-08-30 14:05:19,313 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 14:05:19,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 1254 events. 197/1254 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7718 event pairs, 1 based on Foata normal form. 0/962 useless extension candidates. Maximal degree in co-relation 754. Up to 32 conditions per place. [2023-08-30 14:05:19,397 INFO L119 LiptonReduction]: Number of co-enabled transitions 76616 [2023-08-30 14:05:23,044 INFO L134 LiptonReduction]: Checked pairs total: 170421 [2023-08-30 14:05:23,045 INFO L136 LiptonReduction]: Total number of compositions: 257 [2023-08-30 14:05:23,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:05:23,047 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;@29e6e5ee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:05:23,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-08-30 14:05:23,049 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-08-30 14:05:23,049 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:05:23,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:05:23,049 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:05:23,050 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 14:05:23,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:05:23,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1580593507, now seen corresponding path program 1 times [2023-08-30 14:05:23,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:05:23,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134752421] [2023-08-30 14:05:23,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:05:23,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:05:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:05:23,135 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 14:05:23,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:05:23,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134752421] [2023-08-30 14:05:23,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134752421] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:05:23,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:05:23,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:05:23,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502147865] [2023-08-30 14:05:23,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:05:23,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:05:23,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:05:23,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:05:23,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:05:23,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 615 [2023-08-30 14:05:23,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 175 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 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 14:05:23,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:05:23,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 615 [2023-08-30 14:05:23,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand