/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:43:16,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:43:16,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:43:16,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:43:16,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:43:16,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:43:16,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:43:16,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:43:16,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:43:16,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:43:16,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:43:16,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:43:16,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:43:16,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:43:16,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:43:16,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:43:16,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:43:16,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:43:16,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:43:16,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:43:16,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:43:16,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:43:16,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:43:16,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:43:16,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:43:16,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:43:16,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:43:16,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:43:16,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:43:16,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:43:16,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:43:16,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:43:16,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:43:16,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:43:16,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:43:16,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:43:16,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:43:16,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:43:16,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:43:16,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:43:16,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:43:16,376 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 07:43:16,393 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:43:16,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:43:16,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:43:16,394 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:43:16,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:43:16,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:43:16,395 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:43:16,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:43:16,395 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:43:16,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:43:16,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:43:16,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:43:16,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:43:16,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:43:16,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:43:16,396 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:43:16,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:43:16,396 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:43:16,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:43:16,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:43:16,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:43:16,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:43:16,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:43:16,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:43:16,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:43:16,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:43:16,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:43:16,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:43:16,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:43:16,398 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:43:16,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:43:16,398 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:43:16,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:43:16,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:43:16,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:43:16,621 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:43:16,622 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:43:16,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-01-28 07:43:17,703 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:43:17,902 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:43:17,903 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-01-28 07:43:17,914 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b7a32d4f/8160f4e395ec4050a5bd765714725d2c/FLAGfc6e77b6c [2023-01-28 07:43:17,926 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b7a32d4f/8160f4e395ec4050a5bd765714725d2c [2023-01-28 07:43:17,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:43:17,929 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:43:17,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:43:17,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:43:17,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:43:17,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:43:17" (1/1) ... [2023-01-28 07:43:17,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45f7669c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:17, skipping insertion in model container [2023-01-28 07:43:17,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:43:17" (1/1) ... [2023-01-28 07:43:17,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:43:17,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:43:18,077 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2023-01-28 07:43:18,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:43:18,233 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:43:18,245 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2023-01-28 07:43:18,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:43:18,298 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:43:18,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18 WrapperNode [2023-01-28 07:43:18,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:43:18,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:43:18,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:43:18,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:43:18,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (1/1) ... [2023-01-28 07:43:18,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (1/1) ... [2023-01-28 07:43:18,345 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-01-28 07:43:18,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:43:18,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:43:18,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:43:18,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:43:18,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (1/1) ... [2023-01-28 07:43:18,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (1/1) ... [2023-01-28 07:43:18,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (1/1) ... [2023-01-28 07:43:18,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (1/1) ... [2023-01-28 07:43:18,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (1/1) ... [2023-01-28 07:43:18,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (1/1) ... [2023-01-28 07:43:18,361 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (1/1) ... [2023-01-28 07:43:18,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (1/1) ... [2023-01-28 07:43:18,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:43:18,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:43:18,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:43:18,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:43:18,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (1/1) ... [2023-01-28 07:43:18,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:43:18,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:43:18,396 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) [2023-01-28 07:43:18,401 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 [2023-01-28 07:43:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:43:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:43:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:43:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:43:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 07:43:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 07:43:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:43:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:43:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:43:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:43:18,424 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 07:43:18,518 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:43:18,519 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:43:18,630 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:43:18,635 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:43:18,635 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:43:18,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:43:18 BoogieIcfgContainer [2023-01-28 07:43:18,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:43:18,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:43:18,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:43:18,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:43:18,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:43:17" (1/3) ... [2023-01-28 07:43:18,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba5dd9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:43:18, skipping insertion in model container [2023-01-28 07:43:18,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:18" (2/3) ... [2023-01-28 07:43:18,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba5dd9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:43:18, skipping insertion in model container [2023-01-28 07:43:18,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:43:18" (3/3) ... [2023-01-28 07:43:18,643 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-01-28 07:43:18,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:43:18,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 07:43:18,671 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:43:18,742 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 07:43:18,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 125 flow [2023-01-28 07:43:18,810 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2023-01-28 07:43:18,810 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:43:18,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-01-28 07:43:18,813 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 125 flow [2023-01-28 07:43:18,816 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2023-01-28 07:43:18,819 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:43:18,832 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 105 flow [2023-01-28 07:43:18,834 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 105 flow [2023-01-28 07:43:18,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 105 flow [2023-01-28 07:43:18,857 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2023-01-28 07:43:18,858 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:43:18,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-01-28 07:43:18,858 INFO L119 LiptonReduction]: Number of co-enabled transitions 240 [2023-01-28 07:43:20,912 INFO L134 LiptonReduction]: Checked pairs total: 592 [2023-01-28 07:43:20,912 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-01-28 07:43:20,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:43:20,941 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=false, 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;@6bb36397, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:43:20,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 07:43:20,948 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-01-28 07:43:20,948 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:43:20,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:43:20,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 07:43:20,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:43:20,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:43:20,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1761964991, now seen corresponding path program 1 times [2023-01-28 07:43:20,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:43:20,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43524113] [2023-01-28 07:43:20,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:43:20,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:43:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:43:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:43:21,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:43:21,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43524113] [2023-01-28 07:43:21,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43524113] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:43:21,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:43:21,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 07:43:21,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491737919] [2023-01-28 07:43:21,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:43:21,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:43:21,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:43:21,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:43:21,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:43:21,353 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 100 [2023-01-28 07:43:21,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 11 transitions, 25 flow. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2023-01-28 07:43:21,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:43:21,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 100 [2023-01-28 07:43:21,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:43:21,400 INFO L130 PetriNetUnfolder]: 13/40 cut-off events. [2023-01-28 07:43:21,401 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:43:21,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 40 events. 13/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 80 event pairs, 7 based on Foata normal form. 3/43 useless extension candidates. Maximal degree in co-relation 72. Up to 19 conditions per place. [2023-01-28 07:43:21,403 INFO L137 encePairwiseOnDemand]: 97/100 looper letters, 11 selfloop transitions, 2 changer transitions 0/14 dead transitions. [2023-01-28 07:43:21,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 14 transitions, 57 flow [2023-01-28 07:43:21,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:43:21,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:43:21,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2023-01-28 07:43:21,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5866666666666667 [2023-01-28 07:43:21,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2023-01-28 07:43:21,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2023-01-28 07:43:21,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:43:21,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2023-01-28 07:43:21,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2023-01-28 07:43:21,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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) [2023-01-28 07:43:21,427 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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) [2023-01-28 07:43:21,428 INFO L175 Difference]: Start difference. First operand has 15 places, 11 transitions, 25 flow. Second operand 3 states and 176 transitions. [2023-01-28 07:43:21,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 14 transitions, 57 flow [2023-01-28 07:43:21,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 14 transitions, 56 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:43:21,431 INFO L231 Difference]: Finished difference. Result has 17 places, 11 transitions, 32 flow [2023-01-28 07:43:21,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=17, PETRI_TRANSITIONS=11} [2023-01-28 07:43:21,435 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, 2 predicate places. [2023-01-28 07:43:21,436 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 11 transitions, 32 flow [2023-01-28 07:43:21,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2023-01-28 07:43:21,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:43:21,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:43:21,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:43:21,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:43:21,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:43:21,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1752855910, now seen corresponding path program 1 times [2023-01-28 07:43:21,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:43:21,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182894990] [2023-01-28 07:43:21,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:43:21,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:43:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:43:21,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:43:21,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:43:21,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182894990] [2023-01-28 07:43:21,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182894990] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:43:21,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:43:21,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:43:21,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253590397] [2023-01-28 07:43:21,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:43:21,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:43:21,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:43:21,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:43:21,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:43:21,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 100 [2023-01-28 07:43:21,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 11 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2023-01-28 07:43:21,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:43:21,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 100 [2023-01-28 07:43:21,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:43:21,538 INFO L130 PetriNetUnfolder]: 6/30 cut-off events. [2023-01-28 07:43:21,539 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:43:21,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 30 events. 6/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 2 based on Foata normal form. 4/34 useless extension candidates. Maximal degree in co-relation 61. Up to 18 conditions per place. [2023-01-28 07:43:21,540 INFO L137 encePairwiseOnDemand]: 95/100 looper letters, 9 selfloop transitions, 5 changer transitions 0/15 dead transitions. [2023-01-28 07:43:21,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 15 transitions, 70 flow [2023-01-28 07:43:21,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:43:21,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:43:21,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2023-01-28 07:43:21,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49333333333333335 [2023-01-28 07:43:21,544 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 148 transitions. [2023-01-28 07:43:21,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 148 transitions. [2023-01-28 07:43:21,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:43:21,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 148 transitions. [2023-01-28 07:43:21,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-01-28 07:43:21,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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) [2023-01-28 07:43:21,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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) [2023-01-28 07:43:21,547 INFO L175 Difference]: Start difference. First operand has 17 places, 11 transitions, 32 flow. Second operand 3 states and 148 transitions. [2023-01-28 07:43:21,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 15 transitions, 70 flow [2023-01-28 07:43:21,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 15 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:43:21,548 INFO L231 Difference]: Finished difference. Result has 18 places, 13 transitions, 51 flow [2023-01-28 07:43:21,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=18, PETRI_TRANSITIONS=13} [2023-01-28 07:43:21,549 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, 3 predicate places. [2023-01-28 07:43:21,549 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 13 transitions, 51 flow [2023-01-28 07:43:21,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2023-01-28 07:43:21,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:43:21,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:43:21,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:43:21,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:43:21,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:43:21,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1903195232, now seen corresponding path program 2 times [2023-01-28 07:43:21,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:43:21,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172063734] [2023-01-28 07:43:21,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:43:21,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:43:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:43:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:43:21,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:43:21,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172063734] [2023-01-28 07:43:21,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172063734] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:43:21,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:43:21,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 07:43:21,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562759196] [2023-01-28 07:43:21,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:43:21,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 07:43:21,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:43:21,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 07:43:21,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-01-28 07:43:21,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 100 [2023-01-28 07:43:21,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 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) [2023-01-28 07:43:21,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:43:21,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 100 [2023-01-28 07:43:21,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:43:21,702 INFO L130 PetriNetUnfolder]: 4/25 cut-off events. [2023-01-28 07:43:21,703 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-01-28 07:43:21,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 25 events. 4/25 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 69. Up to 15 conditions per place. [2023-01-28 07:43:21,703 INFO L137 encePairwiseOnDemand]: 96/100 looper letters, 10 selfloop transitions, 4 changer transitions 1/16 dead transitions. [2023-01-28 07:43:21,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 95 flow [2023-01-28 07:43:21,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:43:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:43:21,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 165 transitions. [2023-01-28 07:43:21,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4125 [2023-01-28 07:43:21,705 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 165 transitions. [2023-01-28 07:43:21,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 165 transitions. [2023-01-28 07:43:21,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:43:21,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 165 transitions. [2023-01-28 07:43:21,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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) [2023-01-28 07:43:21,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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) [2023-01-28 07:43:21,708 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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) [2023-01-28 07:43:21,708 INFO L175 Difference]: Start difference. First operand has 18 places, 13 transitions, 51 flow. Second operand 4 states and 165 transitions. [2023-01-28 07:43:21,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 95 flow [2023-01-28 07:43:21,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:43:21,709 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 54 flow [2023-01-28 07:43:21,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2023-01-28 07:43:21,710 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, 5 predicate places. [2023-01-28 07:43:21,710 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 54 flow [2023-01-28 07:43:21,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 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) [2023-01-28 07:43:21,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:43:21,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:43:21,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 07:43:21,711 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:43:21,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:43:21,712 INFO L85 PathProgramCache]: Analyzing trace with hash -414641235, now seen corresponding path program 1 times [2023-01-28 07:43:21,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:43:21,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68892884] [2023-01-28 07:43:21,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:43:21,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:43:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:43:21,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:43:21,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:43:21,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68892884] [2023-01-28 07:43:21,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68892884] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:43:21,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:43:21,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:43:21,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119441731] [2023-01-28 07:43:21,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:43:21,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:43:21,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:43:21,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:43:21,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 07:43:21,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 100 [2023-01-28 07:43:21,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2023-01-28 07:43:21,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:43:21,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 100 [2023-01-28 07:43:21,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:43:21,900 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-01-28 07:43:21,900 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 07:43:21,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 15 events. 0/15 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2023-01-28 07:43:21,900 INFO L137 encePairwiseOnDemand]: 95/100 looper letters, 5 selfloop transitions, 5 changer transitions 0/11 dead transitions. [2023-01-28 07:43:21,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 11 transitions, 66 flow [2023-01-28 07:43:21,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:43:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:43:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 163 transitions. [2023-01-28 07:43:21,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4075 [2023-01-28 07:43:21,903 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 163 transitions. [2023-01-28 07:43:21,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 163 transitions. [2023-01-28 07:43:21,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:43:21,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 163 transitions. [2023-01-28 07:43:21,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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) [2023-01-28 07:43:21,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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) [2023-01-28 07:43:21,907 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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) [2023-01-28 07:43:21,907 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 54 flow. Second operand 4 states and 163 transitions. [2023-01-28 07:43:21,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 11 transitions, 66 flow [2023-01-28 07:43:21,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 56 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-01-28 07:43:21,911 INFO L231 Difference]: Finished difference. Result has 20 places, 11 transitions, 46 flow [2023-01-28 07:43:21,916 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=20, PETRI_TRANSITIONS=11} [2023-01-28 07:43:21,918 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, 5 predicate places. [2023-01-28 07:43:21,918 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 46 flow [2023-01-28 07:43:21,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2023-01-28 07:43:21,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:43:21,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:43:21,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 07:43:21,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:43:21,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:43:21,920 INFO L85 PathProgramCache]: Analyzing trace with hash 23964701, now seen corresponding path program 1 times [2023-01-28 07:43:21,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:43:21,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750790209] [2023-01-28 07:43:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:43:21,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:43:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:43:21,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 07:43:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:43:21,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 07:43:21,991 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 07:43:21,992 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-28 07:43:21,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 07:43:21,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 07:43:21,994 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-01-28 07:43:21,998 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:43:21,998 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:43:22,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:43:22 BasicIcfg [2023-01-28 07:43:22,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:43:22,042 INFO L158 Benchmark]: Toolchain (without parser) took 4113.21ms. Allocated memory was 385.9MB in the beginning and 463.5MB in the end (delta: 77.6MB). Free memory was 343.6MB in the beginning and 410.5MB in the end (delta: -66.9MB). Peak memory consumption was 13.1MB. Max. memory is 16.0GB. [2023-01-28 07:43:22,042 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 212.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:43:22,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.48ms. Allocated memory is still 385.9MB. Free memory was 343.2MB in the beginning and 324.5MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 07:43:22,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.11ms. Allocated memory is still 385.9MB. Free memory was 324.5MB in the beginning and 322.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:43:22,045 INFO L158 Benchmark]: Boogie Preprocessor took 17.27ms. Allocated memory is still 385.9MB. Free memory was 322.5MB in the beginning and 321.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:43:22,049 INFO L158 Benchmark]: RCFGBuilder took 272.93ms. Allocated memory is still 385.9MB. Free memory was 321.1MB in the beginning and 308.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 07:43:22,051 INFO L158 Benchmark]: TraceAbstraction took 3403.10ms. Allocated memory was 385.9MB in the beginning and 463.5MB in the end (delta: 77.6MB). Free memory was 308.2MB in the beginning and 410.5MB in the end (delta: -102.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:43:22,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 212.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 368.48ms. Allocated memory is still 385.9MB. Free memory was 343.2MB in the beginning and 324.5MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.11ms. Allocated memory is still 385.9MB. Free memory was 324.5MB in the beginning and 322.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.27ms. Allocated memory is still 385.9MB. Free memory was 322.5MB in the beginning and 321.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 272.93ms. Allocated memory is still 385.9MB. Free memory was 321.1MB in the beginning and 308.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3403.10ms. Allocated memory was 385.9MB in the beginning and 463.5MB in the end (delta: 77.6MB). Free memory was 308.2MB in the beginning and 410.5MB in the end (delta: -102.3MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 55 PlacesBefore, 15 PlacesAfterwards, 51 TransitionsBefore, 11 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 269, independent: 181, independent conditional: 0, independent unconditional: 181, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 126, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 269, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 126, unknown conditional: 0, unknown unconditional: 126] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 g = 17 VAL [A={3:0}, D={4:0}, arg={0:0}, arg={0:0}, g=17] [L690] 1 return ((void *)0); [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, D={4:0}, \old(cond)=0, \result={0:0}, arg={0:0}, arg={0:0}, cond=0, g=17] - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 72 locations, 2 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: 3.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=3, 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, 0.5s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 133 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 RESULT: Ultimate proved your program to be incorrect! [2023-01-28 07:43:22,068 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...