./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_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_09-ptrmunge_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 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --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 14:07:39,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 14:07:39,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 14:07:39,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 14:07:39,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 14:07:39,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 14:07:39,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 14:07:39,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 14:07:39,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 14:07:39,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 14:07:39,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 14:07:39,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 14:07:39,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 14:07:39,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 14:07:39,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 14:07:39,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 14:07:39,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 14:07:39,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 14:07:39,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 14:07:39,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 14:07:39,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 14:07:39,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 14:07:39,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 14:07:39,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 14:07:39,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 14:07:39,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 14:07:39,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 14:07:39,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 14:07:39,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 14:07:39,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 14:07:39,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 14:07:39,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 14:07:39,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 14:07:39,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 14:07:39,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 14:07:39,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 14:07:39,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 14:07:39,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 14:07:39,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 14:07:39,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 14:07:39,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 14:07:39,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 14:07:39,517 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 14:07:39,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 14:07:39,519 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 14:07:39,519 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 14:07:39,520 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 14:07:39,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 14:07:39,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 14:07:39,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 14:07:39,521 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 14:07:39,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 14:07:39,522 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 14:07:39,522 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 14:07:39,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 14:07:39,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 14:07:39,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 14:07:39,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 14:07:39,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 14:07:39,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 14:07:39,523 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 14:07:39,524 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 14:07:39,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 14:07:39,524 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 14:07:39,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 14:07:39,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 14:07:39,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 14:07:39,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 14:07:39,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:07:39,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 14:07:39,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 14:07:39,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 14:07:39,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 14:07:39,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 14:07:39,526 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 14:07:39,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 14:07:39,527 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 14:07:39,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 14:07:39,527 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 14:07:39,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 14:07:39,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 14:07:39,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 14:07:39,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 14:07:39,867 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 14:07:39,867 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 14:07:39,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-08-30 14:07:41,026 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 14:07:41,309 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 14:07:41,309 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-08-30 14:07:41,327 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7b3224b9/c6dab831454742dba469241139e0fdad/FLAGbc8fcbb33 [2023-08-30 14:07:41,352 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7b3224b9/c6dab831454742dba469241139e0fdad [2023-08-30 14:07:41,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 14:07:41,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 14:07:41,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 14:07:41,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 14:07:41,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 14:07:41,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5225f543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41, skipping insertion in model container [2023-08-30 14:07:41,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 14:07:41,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 14:07:41,717 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_09-ptrmunge_racing.i[30176,30189] [2023-08-30 14:07:41,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:07:41,759 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 14:07:41,810 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_09-ptrmunge_racing.i[30176,30189] [2023-08-30 14:07:41,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:07:41,894 INFO L208 MainTranslator]: Completed translation [2023-08-30 14:07:41,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41 WrapperNode [2023-08-30 14:07:41,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 14:07:41,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 14:07:41,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 14:07:41,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 14:07:41,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,938 INFO L138 Inliner]: procedures = 172, calls = 50, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 234 [2023-08-30 14:07:41,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 14:07:41,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 14:07:41,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 14:07:41,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 14:07:41,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,964 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 14:07:41,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 14:07:41,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 14:07:41,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 14:07:41,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (1/1) ... [2023-08-30 14:07:41,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:07:42,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:07:42,018 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 14:07:42,043 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 14:07:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 14:07:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-30 14:07:42,061 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-30 14:07:42,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 14:07:42,062 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 14:07:42,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 14:07:42,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 14:07:42,062 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-30 14:07:42,062 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-30 14:07:42,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 14:07:42,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 14:07:42,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 14:07:42,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 14:07:42,064 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 14:07:42,169 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 14:07:42,171 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 14:07:42,559 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 14:07:42,567 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 14:07:42,568 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-08-30 14:07:42,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:07:42 BoogieIcfgContainer [2023-08-30 14:07:42,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 14:07:42,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 14:07:42,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 14:07:42,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 14:07:42,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:07:41" (1/3) ... [2023-08-30 14:07:42,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38159238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:07:42, skipping insertion in model container [2023-08-30 14:07:42,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:07:41" (2/3) ... [2023-08-30 14:07:42,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38159238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:07:42, skipping insertion in model container [2023-08-30 14:07:42,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:07:42" (3/3) ... [2023-08-30 14:07:42,577 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2023-08-30 14:07:42,584 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 14:07:42,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 14:07:42,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-30 14:07:42,594 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 14:07:42,676 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-30 14:07:42,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 218 places, 245 transitions, 512 flow [2023-08-30 14:07:42,829 INFO L130 PetriNetUnfolder]: 58/437 cut-off events. [2023-08-30 14:07:42,829 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 14:07:42,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 437 events. 58/437 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1925 event pairs, 0 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 233. Up to 8 conditions per place. [2023-08-30 14:07:42,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 218 places, 245 transitions, 512 flow [2023-08-30 14:07:42,847 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 218 places, 245 transitions, 512 flow [2023-08-30 14:07:42,850 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:07:42,858 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 245 transitions, 512 flow [2023-08-30 14:07:42,860 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 245 transitions, 512 flow [2023-08-30 14:07:42,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 218 places, 245 transitions, 512 flow [2023-08-30 14:07:42,926 INFO L130 PetriNetUnfolder]: 58/437 cut-off events. [2023-08-30 14:07:42,926 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 14:07:42,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 437 events. 58/437 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1925 event pairs, 0 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 233. Up to 8 conditions per place. [2023-08-30 14:07:42,945 INFO L119 LiptonReduction]: Number of co-enabled transitions 25704 [2023-08-30 14:07:47,570 INFO L134 LiptonReduction]: Checked pairs total: 47433 [2023-08-30 14:07:47,570 INFO L136 LiptonReduction]: Total number of compositions: 205 [2023-08-30 14:07:47,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:07:47,587 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;@63bdbf5f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:07:47,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-30 14:07:47,589 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 14:07:47,590 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:07:47,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:07:47,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 14:07:47,591 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 14:07:47,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:07:47,594 INFO L85 PathProgramCache]: Analyzing trace with hash 30363788, now seen corresponding path program 1 times [2023-08-30 14:07:47,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:07:47,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511134217] [2023-08-30 14:07:47,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:07:47,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:07:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:07:47,865 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 14:07:47,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:07:47,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511134217] [2023-08-30 14:07:47,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511134217] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:07:47,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:07:47,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:07:47,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881154214] [2023-08-30 14:07:47,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:07:47,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:07:47,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:07:47,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:07:47,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:07:47,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 450 [2023-08-30 14:07:47,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 94 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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 14:07:47,934 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:07:47,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 450 [2023-08-30 14:07:47,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:07:48,952 INFO L130 PetriNetUnfolder]: 7034/11443 cut-off events. [2023-08-30 14:07:48,952 INFO L131 PetriNetUnfolder]: For 145/145 co-relation queries the response was YES. [2023-08-30 14:07:48,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22179 conditions, 11443 events. 7034/11443 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 75888 event pairs, 6004 based on Foata normal form. 1372/8810 useless extension candidates. Maximal degree in co-relation 21236. Up to 10578 conditions per place. [2023-08-30 14:07:49,019 INFO L137 encePairwiseOnDemand]: 424/450 looper letters, 77 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2023-08-30 14:07:49,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 90 transitions, 360 flow [2023-08-30 14:07:49,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:07:49,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:07:49,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2023-08-30 14:07:49,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5437037037037037 [2023-08-30 14:07:49,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 734 transitions. [2023-08-30 14:07:49,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions. [2023-08-30 14:07:49,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:07:49,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions. [2023-08-30 14:07:49,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 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 14:07:49,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 450.0) internal successors, (1800), 4 states have internal predecessors, (1800), 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 14:07:49,056 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 450.0) internal successors, (1800), 4 states have internal predecessors, (1800), 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 14:07:49,058 INFO L175 Difference]: Start difference. First operand has 72 places, 94 transitions, 210 flow. Second operand 3 states and 734 transitions. [2023-08-30 14:07:49,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 90 transitions, 360 flow [2023-08-30 14:07:49,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 90 transitions, 360 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 14:07:49,066 INFO L231 Difference]: Finished difference. Result has 73 places, 71 transitions, 172 flow [2023-08-30 14:07:49,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=450, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=73, PETRI_TRANSITIONS=71} [2023-08-30 14:07:49,071 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places. [2023-08-30 14:07:49,071 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 172 flow [2023-08-30 14:07:49,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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 14:07:49,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:07:49,073 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-30 14:07:49,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 14:07:49,074 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-08-30 14:07:49,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:07:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash -885091814, now seen corresponding path program 1 times [2023-08-30 14:07:49,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:07:49,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212642543] [2023-08-30 14:07:49,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:07:49,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:07:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:07:49,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 14:07:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:07:49,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 14:07:49,150 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 14:07:49,151 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2023-08-30 14:07:49,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-08-30 14:07:49,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-08-30 14:07:49,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-08-30 14:07:49,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-08-30 14:07:49,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-08-30 14:07:49,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-08-30 14:07:49,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-08-30 14:07:49,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-08-30 14:07:49,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-08-30 14:07:49,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-08-30 14:07:49,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-08-30 14:07:49,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2023-08-30 14:07:49,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-08-30 14:07:49,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-08-30 14:07:49,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-08-30 14:07:49,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-08-30 14:07:49,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-08-30 14:07:49,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-08-30 14:07:49,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-08-30 14:07:49,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-08-30 14:07:49,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-08-30 14:07:49,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-08-30 14:07:49,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-08-30 14:07:49,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-08-30 14:07:49,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-08-30 14:07:49,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 14:07:49,159 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 14:07:49,161 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-30 14:07:49,161 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-30 14:07:49,205 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-08-30 14:07:49,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 336 places, 387 transitions, 822 flow [2023-08-30 14:07:49,453 INFO L130 PetriNetUnfolder]: 197/1311 cut-off events. [2023-08-30 14:07:49,454 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 14:07:49,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1408 conditions, 1311 events. 197/1311 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8239 event pairs, 1 based on Foata normal form. 0/1019 useless extension candidates. Maximal degree in co-relation 778. Up to 32 conditions per place. [2023-08-30 14:07:49,480 INFO L82 GeneralOperation]: Start removeDead. Operand has 336 places, 387 transitions, 822 flow [2023-08-30 14:07:49,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 387 transitions, 822 flow [2023-08-30 14:07:49,498 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:07:49,499 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 336 places, 387 transitions, 822 flow [2023-08-30 14:07:49,499 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 336 places, 387 transitions, 822 flow [2023-08-30 14:07:49,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 336 places, 387 transitions, 822 flow [2023-08-30 14:07:49,697 INFO L130 PetriNetUnfolder]: 197/1311 cut-off events. [2023-08-30 14:07:49,697 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 14:07:49,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1408 conditions, 1311 events. 197/1311 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8239 event pairs, 1 based on Foata normal form. 0/1019 useless extension candidates. Maximal degree in co-relation 778. Up to 32 conditions per place. [2023-08-30 14:07:49,791 INFO L119 LiptonReduction]: Number of co-enabled transitions 91120 [2023-08-30 14:07:55,373 INFO L134 LiptonReduction]: Checked pairs total: 194439 [2023-08-30 14:07:55,374 INFO L136 LiptonReduction]: Total number of compositions: 313 [2023-08-30 14:07:55,376 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:07:55,377 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;@63bdbf5f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:07:55,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-08-30 14:07:55,380 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-08-30 14:07:55,380 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:07:55,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:07:55,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:07:55,380 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 14:07:55,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:07:55,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1741808251, now seen corresponding path program 1 times [2023-08-30 14:07:55,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:07:55,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036401379] [2023-08-30 14:07:55,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:07:55,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:07:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:07:55,428 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 14:07:55,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:07:55,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036401379] [2023-08-30 14:07:55,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036401379] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:07:55,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:07:55,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:07:55,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657458405] [2023-08-30 14:07:55,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:07:55,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:07:55,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:07:55,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:07:55,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:07:55,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 700 [2023-08-30 14:07:55,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 164 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 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 14:07:55,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:07:55,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 700 [2023-08-30 14:07:55,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand