./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 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 ../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_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 da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:12:07,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:12:07,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:12:07,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:12:07,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:12:07,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:12:07,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:12:07,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:12:07,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:12:07,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:12:07,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:12:07,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:12:07,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:12:07,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:12:07,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:12:07,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:12:07,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:12:07,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:12:07,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:12:07,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:12:07,270 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:12:07,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:12:07,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:12:07,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:12:07,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:12:07,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:12:07,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:12:07,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:12:07,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:12:07,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:12:07,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:12:07,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:12:07,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:12:07,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:12:07,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:12:07,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:12:07,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:12:07,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:12:07,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:12:07,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:12:07,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:12:07,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:12:07,288 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:12:07,312 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:12:07,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:12:07,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:12:07,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:12:07,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:12:07,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:12:07,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:12:07,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:12:07,316 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:12:07,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:12:07,317 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:12:07,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:12:07,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:12:07,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:12:07,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:12:07,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:12:07,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:12:07,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:12:07,319 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:12:07,319 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:12:07,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:12:07,319 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:12:07,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:12:07,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:12:07,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:12:07,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:12:07,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:12:07,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:12:07,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:12:07,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:12:07,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:12:07,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:12:07,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:12:07,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2022-07-14 14:12:07,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:12:07,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:12:07,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:12:07,510 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:12:07,513 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:12:07,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2022-07-14 14:12:07,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e595c5401/a1d40312e5e44d49a758a8ac05cddd0d/FLAGd69c880e8 [2022-07-14 14:12:08,019 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:12:08,020 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2022-07-14 14:12:08,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e595c5401/a1d40312e5e44d49a758a8ac05cddd0d/FLAGd69c880e8 [2022-07-14 14:12:08,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e595c5401/a1d40312e5e44d49a758a8ac05cddd0d [2022-07-14 14:12:08,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:12:08,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:12:08,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:12:08,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:12:08,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:12:08,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c6f85af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08, skipping insertion in model container [2022-07-14 14:12:08,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:12:08,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:12:08,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-07-14 14:12:08,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:12:08,436 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:12:08,456 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-07-14 14:12:08,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:12:08,506 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:12:08,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08 WrapperNode [2022-07-14 14:12:08,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:12:08,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:12:08,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:12:08,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:12:08,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,550 INFO L137 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 363 [2022-07-14 14:12:08,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:12:08,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:12:08,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:12:08,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:12:08,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:12:08,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:12:08,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:12:08,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:12:08,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08" (1/1) ... [2022-07-14 14:12:08,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:12:08,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:12:08,617 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) [2022-07-14 14:12:08,618 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 [2022-07-14 14:12:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:12:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 14:12:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-07-14 14:12:08,644 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-07-14 14:12:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:12:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:12:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-14 14:12:08,645 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-14 14:12:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:12:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:12:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 14:12:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:12:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 14:12:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-07-14 14:12:08,646 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-07-14 14:12:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:12:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:12:08,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:12:08,647 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-14 14:12:08,769 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:12:08,770 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:12:09,214 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:12:09,223 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:12:09,227 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2022-07-14 14:12:09,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:12:09 BoogieIcfgContainer [2022-07-14 14:12:09,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:12:09,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:12:09,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:12:09,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:12:09,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:12:08" (1/3) ... [2022-07-14 14:12:09,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770d5355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:12:09, skipping insertion in model container [2022-07-14 14:12:09,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:12:08" (2/3) ... [2022-07-14 14:12:09,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770d5355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:12:09, skipping insertion in model container [2022-07-14 14:12:09,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:12:09" (3/3) ... [2022-07-14 14:12:09,238 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2022-07-14 14:12:09,242 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:12:09,248 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:12:09,248 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-07-14 14:12:09,248 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:12:09,312 INFO L135 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-07-14 14:12:09,339 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:12:09,349 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 367 places, 406 transitions, 854 flow [2022-07-14 14:12:09,351 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 367 places, 406 transitions, 854 flow [2022-07-14 14:12:09,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 367 places, 406 transitions, 854 flow [2022-07-14 14:12:09,566 INFO L129 PetriNetUnfolder]: 165/1258 cut-off events. [2022-07-14 14:12:09,566 INFO L130 PetriNetUnfolder]: For 36/63 co-relation queries the response was YES. [2022-07-14 14:12:09,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1319 conditions, 1258 events. 165/1258 cut-off events. For 36/63 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 8187 event pairs, 0 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 641. Up to 16 conditions per place. [2022-07-14 14:12:09,652 INFO L116 LiptonReduction]: Number of co-enabled transitions 71262 [2022-07-14 14:12:34,631 INFO L131 LiptonReduction]: Checked pairs total: 126267 [2022-07-14 14:12:34,631 INFO L133 LiptonReduction]: Total number of compositions: 362 [2022-07-14 14:12:34,637 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 104 places, 133 transitions, 308 flow [2022-07-14 14:12:37,759 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 111234 states, 110593 states have (on average 4.575343828271229) internal successors, (506001), 111233 states have internal predecessors, (506001), 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) [2022-07-14 14:12:37,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:12:37,777 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3bf30de3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5bb7bc12 [2022-07-14 14:12:37,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-07-14 14:12:37,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 111234 states, 110593 states have (on average 4.575343828271229) internal successors, (506001), 111233 states have internal predecessors, (506001), 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) [2022-07-14 14:12:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-14 14:12:37,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:12:37,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-14 14:12:37,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-07-14 14:12:37,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:12:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash 49400688, now seen corresponding path program 1 times [2022-07-14 14:12:37,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:12:37,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354688031] [2022-07-14 14:12:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:37,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:12:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:12:38,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:12:38,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354688031] [2022-07-14 14:12:38,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354688031] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:12:38,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:12:38,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:12:38,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095745593] [2022-07-14 14:12:38,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:12:38,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:12:38,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:12:38,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:12:38,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:12:38,613 INFO L87 Difference]: Start difference. First operand has 111234 states, 110593 states have (on average 4.575343828271229) internal successors, (506001), 111233 states have internal predecessors, (506001), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-07-14 14:12:40,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:12:40,298 INFO L93 Difference]: Finished difference Result 107268 states and 396483 transitions. [2022-07-14 14:12:40,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:12:40,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-07-14 14:12:40,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:12:41,063 INFO L225 Difference]: With dead ends: 107268 [2022-07-14 14:12:41,064 INFO L226 Difference]: Without dead ends: 104565 [2022-07-14 14:12:41,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:12:41,066 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:12:41,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 32 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:12:41,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104565 states. [2022-07-14 14:12:44,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104565 to 104565. [2022-07-14 14:12:44,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104565 states, 104041 states have (on average 3.7121711632913947) internal successors, (386218), 104564 states have internal predecessors, (386218), 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) [2022-07-14 14:12:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104565 states to 104565 states and 386218 transitions. [2022-07-14 14:12:45,402 INFO L78 Accepts]: Start accepts. Automaton has 104565 states and 386218 transitions. Word has length 4 [2022-07-14 14:12:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:12:45,403 INFO L495 AbstractCegarLoop]: Abstraction has 104565 states and 386218 transitions. [2022-07-14 14:12:45,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-07-14 14:12:45,403 INFO L276 IsEmpty]: Start isEmpty. Operand 104565 states and 386218 transitions. [2022-07-14 14:12:45,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:12:45,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:12:45,404 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-07-14 14:12:45,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:12:45,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-07-14 14:12:45,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:12:45,405 INFO L85 PathProgramCache]: Analyzing trace with hash 229545065, now seen corresponding path program 1 times [2022-07-14 14:12:45,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:12:45,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887246712] [2022-07-14 14:12:45,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:45,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:12:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:12:45,450 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:12:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:12:45,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:12:45,497 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 14:12:45,498 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-07-14 14:12:45,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2022-07-14 14:12:45,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2022-07-14 14:12:45,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2022-07-14 14:12:45,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2022-07-14 14:12:45,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2022-07-14 14:12:45,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2022-07-14 14:12:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2022-07-14 14:12:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2022-07-14 14:12:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2022-07-14 14:12:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2022-07-14 14:12:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2022-07-14 14:12:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2022-07-14 14:12:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2022-07-14 14:12:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2022-07-14 14:12:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2022-07-14 14:12:45,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2022-07-14 14:12:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2022-07-14 14:12:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2022-07-14 14:12:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2022-07-14 14:12:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2022-07-14 14:12:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2022-07-14 14:12:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 31 remaining) [2022-07-14 14:12:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2022-07-14 14:12:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2022-07-14 14:12:45,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2022-07-14 14:12:45,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2022-07-14 14:12:45,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2022-07-14 14:12:45,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2022-07-14 14:12:45,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2022-07-14 14:12:45,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2022-07-14 14:12:45,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:12:45,506 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-14 14:12:45,510 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-14 14:12:45,510 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-14 14:12:45,565 INFO L135 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-07-14 14:12:45,573 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:12:45,573 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 574 places, 647 transitions, 1384 flow [2022-07-14 14:12:45,573 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 574 places, 647 transitions, 1384 flow [2022-07-14 14:12:45,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 574 places, 647 transitions, 1384 flow [2022-07-14 14:12:47,483 INFO L129 PetriNetUnfolder]: 1132/6644 cut-off events. [2022-07-14 14:12:47,483 INFO L130 PetriNetUnfolder]: For 602/700 co-relation queries the response was YES. [2022-07-14 14:12:47,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7318 conditions, 6644 events. 1132/6644 cut-off events. For 602/700 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 64284 event pairs, 22 based on Foata normal form. 0/5283 useless extension candidates. Maximal degree in co-relation 4069. Up to 192 conditions per place. [2022-07-14 14:12:48,190 INFO L116 LiptonReduction]: Number of co-enabled transitions 256776 [2022-07-14 14:14:22,436 INFO L131 LiptonReduction]: Checked pairs total: 502412 [2022-07-14 14:14:22,436 INFO L133 LiptonReduction]: Total number of compositions: 566 [2022-07-14 14:14:22,438 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 173 places, 232 transitions, 554 flow