./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.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 d425dfbbfb78faa29f27010b68bbdf8cfe9cd77f6a5b55b60367dae1036de9f1 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 06:07:44,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:07:44,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:07:44,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:07:44,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:07:44,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:07:44,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:07:44,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:07:44,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:07:44,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:07:44,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:07:44,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:07:44,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:07:44,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:07:44,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:07:44,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:07:44,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:07:44,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:07:44,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:07:44,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:07:44,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:07:44,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:07:44,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:07:44,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:07:44,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:07:44,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:07:44,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:07:44,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:07:44,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:07:44,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:07:44,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:07:44,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:07:44,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:07:44,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:07:44,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:07:44,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:07:44,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:07:44,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:07:44,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:07:44,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:07:44,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:07:44,519 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:07:44,556 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:07:44,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:07:44,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:07:44,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:07:44,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:07:44,560 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:07:44,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:07:44,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:07:44,561 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:07:44,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:07:44,562 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:07:44,563 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:07:44,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:07:44,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:07:44,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:07:44,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:07:44,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:07:44,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:07:44,564 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:07:44,564 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:07:44,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:07:44,565 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:07:44,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:07:44,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:07:44,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:07:44,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:07:44,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:07:44,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:07:44,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:07:44,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:07:44,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:07:44,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:07:44,567 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:07:44,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:07:44,567 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:07:44,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:07:44,568 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:07:44,568 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d425dfbbfb78faa29f27010b68bbdf8cfe9cd77f6a5b55b60367dae1036de9f1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:07:44,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:07:44,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:07:44,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:07:44,912 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:07:44,912 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:07:44,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2023-09-01 06:07:46,192 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:07:46,546 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:07:46,546 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2023-09-01 06:07:46,564 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4db6a001f/05598b46e59e4ee7a58f26f909f538a1/FLAG09e4428c1 [2023-09-01 06:07:46,585 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4db6a001f/05598b46e59e4ee7a58f26f909f538a1 [2023-09-01 06:07:46,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:07:46,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:07:46,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:07:46,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:07:46,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:07:46,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:07:46" (1/1) ... [2023-09-01 06:07:46,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e280dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:46, skipping insertion in model container [2023-09-01 06:07:46,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:07:46" (1/1) ... [2023-09-01 06:07:46,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:07:46,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:07:47,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:07:47,098 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:07:47,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:07:47,262 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:07:47,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47 WrapperNode [2023-09-01 06:07:47,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:07:47,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:07:47,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:07:47,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:07:47,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (1/1) ... [2023-09-01 06:07:47,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (1/1) ... [2023-09-01 06:07:47,325 INFO L138 Inliner]: procedures = 262, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2023-09-01 06:07:47,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:07:47,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:07:47,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:07:47,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:07:47,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (1/1) ... [2023-09-01 06:07:47,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (1/1) ... [2023-09-01 06:07:47,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (1/1) ... [2023-09-01 06:07:47,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (1/1) ... [2023-09-01 06:07:47,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (1/1) ... [2023-09-01 06:07:47,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (1/1) ... [2023-09-01 06:07:47,364 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (1/1) ... [2023-09-01 06:07:47,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (1/1) ... [2023-09-01 06:07:47,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:07:47,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:07:47,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:07:47,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:07:47,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (1/1) ... [2023-09-01 06:07:47,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:07:47,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:07:47,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 06:07:47,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 06:07:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:07:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:07:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 06:07:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:07:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:07:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:07:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:07:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:07:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:07:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:07:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:07:47,463 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 06:07:47,637 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:07:47,638 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:07:47,827 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:07:47,833 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:07:47,833 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 06:07:47,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:07:47 BoogieIcfgContainer [2023-09-01 06:07:47,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:07:47,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:07:47,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:07:47,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:07:47,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:07:46" (1/3) ... [2023-09-01 06:07:47,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f51846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:07:47, skipping insertion in model container [2023-09-01 06:07:47,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:07:47" (2/3) ... [2023-09-01 06:07:47,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f51846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:07:47, skipping insertion in model container [2023-09-01 06:07:47,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:07:47" (3/3) ... [2023-09-01 06:07:47,843 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_02-simple_nr.i [2023-09-01 06:07:47,850 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:07:47,873 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:07:47,874 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 06:07:47,874 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:07:47,949 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 06:07:47,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 57 transitions, 122 flow [2023-09-01 06:07:48,036 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2023-09-01 06:07:48,039 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 06:07:48,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 56 events. 0/56 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-09-01 06:07:48,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 57 transitions, 122 flow [2023-09-01 06:07:48,047 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 49 transitions, 101 flow [2023-09-01 06:07:48,050 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:07:48,067 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 49 transitions, 101 flow [2023-09-01 06:07:48,071 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 49 transitions, 101 flow [2023-09-01 06:07:48,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 49 transitions, 101 flow [2023-09-01 06:07:48,098 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2023-09-01 06:07:48,099 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:07:48,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 49 events. 0/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-09-01 06:07:48,100 INFO L119 LiptonReduction]: Number of co-enabled transitions 242 [2023-09-01 06:07:49,789 INFO L134 LiptonReduction]: Checked pairs total: 1222 [2023-09-01 06:07:49,790 INFO L136 LiptonReduction]: Total number of compositions: 34 [2023-09-01 06:07:49,810 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:07:49,817 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;@b602ee7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:07:49,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-09-01 06:07:49,823 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-09-01 06:07:49,824 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:07:49,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:07:49,824 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 06:07:49,825 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 06:07:49,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:07:49,828 INFO L85 PathProgramCache]: Analyzing trace with hash 5845401, now seen corresponding path program 1 times [2023-09-01 06:07:49,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:07:49,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834705279] [2023-09-01 06:07:49,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:07:49,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:07:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:07:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:07:50,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:07:50,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834705279] [2023-09-01 06:07:50,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834705279] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:07:50,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:07:50,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:07:50,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672558667] [2023-09-01 06:07:50,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:07:50,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:07:50,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:07:50,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:07:50,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:07:50,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 91 [2023-09-01 06:07:50,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 35 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:07:50,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 91 [2023-09-01 06:07:50,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:07:50,198 INFO L130 PetriNetUnfolder]: 16/49 cut-off events. [2023-09-01 06:07:50,199 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:07:50,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 49 events. 16/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 131 event pairs, 8 based on Foata normal form. 7/52 useless extension candidates. Maximal degree in co-relation 90. Up to 37 conditions per place. [2023-09-01 06:07:50,202 INFO L137 encePairwiseOnDemand]: 84/91 looper letters, 13 selfloop transitions, 3 changer transitions 2/21 dead transitions. [2023-09-01 06:07:50,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 21 transitions, 81 flow [2023-09-01 06:07:50,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:07:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:07:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2023-09-01 06:07:50,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.608058608058608 [2023-09-01 06:07:50,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 166 transitions. [2023-09-01 06:07:50,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 166 transitions. [2023-09-01 06:07:50,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:07:50,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 166 transitions. [2023-09-01 06:07:50,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,235 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,236 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 35 flow. Second operand 3 states and 166 transitions. [2023-09-01 06:07:50,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 21 transitions, 81 flow [2023-09-01 06:07:50,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 21 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:07:50,242 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 51 flow [2023-09-01 06:07:50,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2023-09-01 06:07:50,248 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2023-09-01 06:07:50,248 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 51 flow [2023-09-01 06:07:50,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:07:50,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:07:50,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:07:50,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 06:07:50,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:07:50,251 INFO L85 PathProgramCache]: Analyzing trace with hash -100630429, now seen corresponding path program 1 times [2023-09-01 06:07:50,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:07:50,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70344440] [2023-09-01 06:07:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:07:50,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:07:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:07:50,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:07:50,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:07:50,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70344440] [2023-09-01 06:07:50,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70344440] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:07:50,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:07:50,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:07:50,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107034245] [2023-09-01 06:07:50,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:07:50,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:07:50,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:07:50,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:07:50,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:07:50,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 91 [2023-09-01 06:07:50,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:07:50,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 91 [2023-09-01 06:07:50,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:07:50,438 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2023-09-01 06:07:50,438 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:07:50,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 34 event pairs, 0 based on Foata normal form. 3/25 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2023-09-01 06:07:50,439 INFO L137 encePairwiseOnDemand]: 87/91 looper letters, 4 selfloop transitions, 4 changer transitions 0/16 dead transitions. [2023-09-01 06:07:50,439 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 16 transitions, 67 flow [2023-09-01 06:07:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:07:50,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:07:50,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 160 transitions. [2023-09-01 06:07:50,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5860805860805861 [2023-09-01 06:07:50,441 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 160 transitions. [2023-09-01 06:07:50,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 160 transitions. [2023-09-01 06:07:50,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:07:50,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 160 transitions. [2023-09-01 06:07:50,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,444 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,444 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 51 flow. Second operand 3 states and 160 transitions. [2023-09-01 06:07:50,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 16 transitions, 67 flow [2023-09-01 06:07:50,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 16 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:07:50,445 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 56 flow [2023-09-01 06:07:50,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2023-09-01 06:07:50,446 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places. [2023-09-01 06:07:50,446 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 56 flow [2023-09-01 06:07:50,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:07:50,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:07:50,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:07:50,447 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 06:07:50,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:07:50,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1174059666, now seen corresponding path program 1 times [2023-09-01 06:07:50,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:07:50,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349521752] [2023-09-01 06:07:50,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:07:50,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:07:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:07:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:07:50,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:07:50,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349521752] [2023-09-01 06:07:50,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349521752] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:07:50,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:07:50,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:07:50,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266173144] [2023-09-01 06:07:50,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:07:50,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:07:50,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:07:50,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:07:50,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 06:07:50,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 91 [2023-09-01 06:07:50,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:07:50,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 91 [2023-09-01 06:07:50,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:07:50,596 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2023-09-01 06:07:50,596 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 06:07:50,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 20 events. 0/20 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 0 based on Foata normal form. 2/22 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2023-09-01 06:07:50,597 INFO L137 encePairwiseOnDemand]: 86/91 looper letters, 11 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2023-09-01 06:07:50,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 86 flow [2023-09-01 06:07:50,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:07:50,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:07:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2023-09-01 06:07:50,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2023-09-01 06:07:50,599 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 208 transitions. [2023-09-01 06:07:50,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 208 transitions. [2023-09-01 06:07:50,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:07:50,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 208 transitions. [2023-09-01 06:07:50,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,602 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,602 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 56 flow. Second operand 4 states and 208 transitions. [2023-09-01 06:07:50,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 86 flow [2023-09-01 06:07:50,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:07:50,604 INFO L231 Difference]: Finished difference. Result has 23 places, 14 transitions, 50 flow [2023-09-01 06:07:50,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=23, PETRI_TRANSITIONS=14} [2023-09-01 06:07:50,605 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places. [2023-09-01 06:07:50,605 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 14 transitions, 50 flow [2023-09-01 06:07:50,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:07:50,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:07:50,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 06:07:50,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-09-01 06:07:50,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:07:50,607 INFO L85 PathProgramCache]: Analyzing trace with hash 2036111428, now seen corresponding path program 1 times [2023-09-01 06:07:50,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:07:50,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058716228] [2023-09-01 06:07:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:07:50,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:07:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:07:50,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:07:50,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:07:50,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058716228] [2023-09-01 06:07:50,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058716228] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:07:50,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:07:50,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:07:50,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423765349] [2023-09-01 06:07:50,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:07:50,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:07:50,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:07:50,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:07:50,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 06:07:50,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 91 [2023-09-01 06:07:50,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 14 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:07:50,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 91 [2023-09-01 06:07:50,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:07:50,708 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2023-09-01 06:07:50,709 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-09-01 06:07:50,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 18 events. 0/18 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 2/20 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2023-09-01 06:07:50,710 INFO L137 encePairwiseOnDemand]: 86/91 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2023-09-01 06:07:50,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 15 transitions, 74 flow [2023-09-01 06:07:50,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:07:50,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:07:50,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 206 transitions. [2023-09-01 06:07:50,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5659340659340659 [2023-09-01 06:07:50,716 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 206 transitions. [2023-09-01 06:07:50,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 206 transitions. [2023-09-01 06:07:50,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:07:50,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 206 transitions. [2023-09-01 06:07:50,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,725 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,725 INFO L175 Difference]: Start difference. First operand has 23 places, 14 transitions, 50 flow. Second operand 4 states and 206 transitions. [2023-09-01 06:07:50,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 15 transitions, 74 flow [2023-09-01 06:07:50,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 15 transitions, 67 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 06:07:50,727 INFO L231 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2023-09-01 06:07:50,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2023-09-01 06:07:50,729 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2023-09-01 06:07:50,729 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2023-09-01 06:07:50,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:07:50,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-09-01 06:07:50,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-09-01 06:07:50,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-09-01 06:07:50,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-09-01 06:07:50,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-09-01 06:07:50,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-09-01 06:07:50,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-09-01 06:07:50,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 06:07:50,735 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-01 06:07:50,741 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:07:50,741 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:07:50,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:07:50 BasicIcfg [2023-09-01 06:07:50,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:07:50,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:07:50,754 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:07:50,754 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:07:50,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:07:47" (3/4) ... [2023-09-01 06:07:50,757 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:07:50,763 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:07:50,768 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-09-01 06:07:50,768 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 06:07:50,768 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:07:50,806 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:07:50,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:07:50,808 INFO L158 Benchmark]: Toolchain (without parser) took 4218.28ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 55.7MB in the beginning and 44.5MB in the end (delta: 11.2MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-09-01 06:07:50,808 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory was 32.8MB in the beginning and 32.7MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:07:50,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.58ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 50.4MB in the end (delta: 5.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2023-09-01 06:07:50,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.83ms. Allocated memory is still 79.7MB. Free memory was 50.4MB in the beginning and 48.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:07:50,810 INFO L158 Benchmark]: Boogie Preprocessor took 47.23ms. Allocated memory is still 79.7MB. Free memory was 48.1MB in the beginning and 46.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:07:50,811 INFO L158 Benchmark]: RCFGBuilder took 460.85ms. Allocated memory is still 79.7MB. Free memory was 46.6MB in the beginning and 34.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-09-01 06:07:50,811 INFO L158 Benchmark]: TraceAbstraction took 2916.31ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 33.7MB in the beginning and 46.6MB in the end (delta: -12.9MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-09-01 06:07:50,811 INFO L158 Benchmark]: Witness Printer took 53.39ms. Allocated memory is still 98.6MB. Free memory was 46.6MB in the beginning and 44.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:07:50,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory was 32.8MB in the beginning and 32.7MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.58ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 50.4MB in the end (delta: 5.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.83ms. Allocated memory is still 79.7MB. Free memory was 50.4MB in the beginning and 48.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.23ms. Allocated memory is still 79.7MB. Free memory was 48.1MB in the beginning and 46.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.85ms. Allocated memory is still 79.7MB. Free memory was 46.6MB in the beginning and 34.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2916.31ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 33.7MB in the beginning and 46.6MB in the end (delta: -12.9MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 53.39ms. Allocated memory is still 98.6MB. Free memory was 46.6MB in the beginning and 44.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 53 PlacesBefore, 20 PlacesAfterwards, 49 TransitionsBefore, 16 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 34 TotalNumberOfCompositions, 1222 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 834, independent: 682, independent conditional: 0, independent unconditional: 682, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 136, independent: 120, independent conditional: 0, independent unconditional: 120, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 834, independent: 562, independent conditional: 0, independent unconditional: 562, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 136, unknown conditional: 0, unknown unconditional: 136] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 71 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 22 mSDtfsCounter, 141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 06:07:50,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE