/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-0612a5f-m [2022-09-20 20:41:56,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 20:41:56,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 20:41:56,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 20:41:56,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 20:41:56,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 20:41:56,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 20:41:56,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 20:41:56,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 20:41:56,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 20:41:56,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 20:41:56,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 20:41:56,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 20:41:56,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 20:41:56,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 20:41:56,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 20:41:56,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 20:41:56,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 20:41:56,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 20:41:56,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 20:41:56,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 20:41:56,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 20:41:56,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 20:41:56,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 20:41:56,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-20 20:41:56,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-20 20:41:56,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-20 20:41:56,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-20 20:41:56,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-20 20:41:56,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-20 20:41:56,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 20:41:56,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 20:41:56,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 20:41:56,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 20:41:56,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 20:41:56,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 20:41:56,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 20:41:56,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 20:41:56,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 20:41:56,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 20:41:56,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 20:41:56,404 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-NoLbe.epf [2022-09-20 20:41:56,431 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 20:41:56,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 20:41:56,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 20:41:56,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 20:41:56,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 20:41:56,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 20:41:56,433 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 20:41:56,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 20:41:56,433 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 20:41:56,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 20:41:56,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 20:41:56,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 20:41:56,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 20:41:56,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 20:41:56,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 20:41:56,435 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 20:41:56,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 20:41:56,435 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 20:41:56,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 20:41:56,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 20:41:56,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 20:41:56,435 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 20:41:56,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 20:41:56,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:41:56,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 20:41:56,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 20:41:56,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 20:41:56,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 20:41:56,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 20:41:56,436 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 20:41:56,436 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 20:41:56,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 20:41:56,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 20:41:56,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 20:41:56,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 20:41:56,648 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 20:41:56,651 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 20:41:56,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2022-09-20 20:41:56,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2488fbdd/007b19d1ccc84ec998e4c029ce9e287b/FLAG74d81713d [2022-09-20 20:41:57,122 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 20:41:57,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2022-09-20 20:41:57,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2488fbdd/007b19d1ccc84ec998e4c029ce9e287b/FLAG74d81713d [2022-09-20 20:41:57,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2488fbdd/007b19d1ccc84ec998e4c029ce9e287b [2022-09-20 20:41:57,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 20:41:57,452 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 20:41:57,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 20:41:57,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 20:41:57,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 20:41:57,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b33864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57, skipping insertion in model container [2022-09-20 20:41:57,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 20:41:57,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 20:41:57,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i[945,958] [2022-09-20 20:41:57,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:41:57,808 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 20:41:57,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i[945,958] [2022-09-20 20:41:57,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:41:57,875 INFO L208 MainTranslator]: Completed translation [2022-09-20 20:41:57,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57 WrapperNode [2022-09-20 20:41:57,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 20:41:57,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 20:41:57,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 20:41:57,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 20:41:57,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,931 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-09-20 20:41:57,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 20:41:57,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 20:41:57,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 20:41:57,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 20:41:57,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 20:41:57,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 20:41:57,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 20:41:57,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 20:41:57,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57" (1/1) ... [2022-09-20 20:41:57,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:41:57,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 20:41:58,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-20 20:41:58,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-20 20:41:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 20:41:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-20 20:41:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 20:41:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 20:41:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 20:41:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-20 20:41:58,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-20 20:41:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-20 20:41:58,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-20 20:41:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 20:41:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-20 20:41:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 20:41:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 20:41:58,060 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 20:41:58,167 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 20:41:58,168 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 20:41:58,325 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 20:41:58,331 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 20:41:58,331 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 20:41:58,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:41:58 BoogieIcfgContainer [2022-09-20 20:41:58,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 20:41:58,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 20:41:58,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 20:41:58,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 20:41:58,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 08:41:57" (1/3) ... [2022-09-20 20:41:58,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59520697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:41:58, skipping insertion in model container [2022-09-20 20:41:58,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:57" (2/3) ... [2022-09-20 20:41:58,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59520697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:41:58, skipping insertion in model container [2022-09-20 20:41:58,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:41:58" (3/3) ... [2022-09-20 20:41:58,349 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2022-09-20 20:41:58,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 20:41:58,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 20:41:58,367 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 20:41:58,409 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-20 20:41:58,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 158 flow [2022-09-20 20:41:58,468 INFO L130 PetriNetUnfolder]: 2/72 cut-off events. [2022-09-20 20:41:58,468 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 20:41:58,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-09-20 20:41:58,471 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 74 transitions, 158 flow [2022-09-20 20:41:58,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 60 transitions, 126 flow [2022-09-20 20:41:58,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 20:41:58,488 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;@79087b8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 20:41:58,488 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-09-20 20:41:58,504 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2022-09-20 20:41:58,504 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 20:41:58,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:41:58,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:41:58,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 20:41:58,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:41:58,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1399573848, now seen corresponding path program 1 times [2022-09-20 20:41:58,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:41:58,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485090051] [2022-09-20 20:41:58,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:41:58,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:41:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:41:58,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:41:58,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:41:58,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485090051] [2022-09-20 20:41:58,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485090051] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:41:58,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:41:58,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 20:41:58,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558670293] [2022-09-20 20:41:58,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:41:58,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 20:41:58,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:41:58,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 20:41:58,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-20 20:41:58,966 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 74 [2022-09-20 20:41:58,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 126 flow. Second operand has 7 states, 7 states have (on average 54.714285714285715) internal successors, (383), 7 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:41:58,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:41:58,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 74 [2022-09-20 20:41:58,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:41:59,459 INFO L130 PetriNetUnfolder]: 210/593 cut-off events. [2022-09-20 20:41:59,459 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-09-20 20:41:59,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 593 events. 210/593 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3466 event pairs, 13 based on Foata normal form. 30/611 useless extension candidates. Maximal degree in co-relation 974. Up to 91 conditions per place. [2022-09-20 20:41:59,466 INFO L137 encePairwiseOnDemand]: 62/74 looper letters, 35 selfloop transitions, 12 changer transitions 65/154 dead transitions. [2022-09-20 20:41:59,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 154 transitions, 544 flow [2022-09-20 20:41:59,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-20 20:41:59,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-09-20 20:41:59,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1021 transitions. [2022-09-20 20:41:59,486 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8116057233704292 [2022-09-20 20:41:59,486 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1021 transitions. [2022-09-20 20:41:59,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1021 transitions. [2022-09-20 20:41:59,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:41:59,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1021 transitions. [2022-09-20 20:41:59,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 60.05882352941177) internal successors, (1021), 17 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:41:59,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 74.0) internal successors, (1332), 18 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:41:59,504 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 74.0) internal successors, (1332), 18 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:41:59,505 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 126 flow. Second operand 17 states and 1021 transitions. [2022-09-20 20:41:59,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 154 transitions, 544 flow [2022-09-20 20:41:59,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 154 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 20:41:59,512 INFO L231 Difference]: Finished difference. Result has 95 places, 68 transitions, 260 flow [2022-09-20 20:41:59,514 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=260, PETRI_PLACES=95, PETRI_TRANSITIONS=68} [2022-09-20 20:41:59,516 INFO L287 CegarLoopForPetriNet]: 66 programPoint places, 29 predicate places. [2022-09-20 20:41:59,517 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 68 transitions, 260 flow [2022-09-20 20:41:59,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 54.714285714285715) internal successors, (383), 7 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:41:59,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:41:59,517 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:41:59,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 20:41:59,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 20:41:59,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:41:59,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1506298105, now seen corresponding path program 1 times [2022-09-20 20:41:59,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:41:59,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831756501] [2022-09-20 20:41:59,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:41:59,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:41:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:41:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:41:59,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:41:59,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831756501] [2022-09-20 20:41:59,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831756501] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:41:59,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:41:59,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 20:41:59,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15632088] [2022-09-20 20:41:59,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:41:59,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 20:41:59,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:41:59,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 20:41:59,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 20:41:59,629 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 74 [2022-09-20 20:41:59,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 68 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:41:59,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:41:59,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 74 [2022-09-20 20:41:59,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:41:59,748 INFO L130 PetriNetUnfolder]: 109/362 cut-off events. [2022-09-20 20:41:59,749 INFO L131 PetriNetUnfolder]: For 3559/3947 co-relation queries the response was YES. [2022-09-20 20:41:59,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1449 conditions, 362 events. 109/362 cut-off events. For 3559/3947 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2012 event pairs, 7 based on Foata normal form. 15/349 useless extension candidates. Maximal degree in co-relation 1400. Up to 116 conditions per place. [2022-09-20 20:41:59,752 INFO L137 encePairwiseOnDemand]: 65/74 looper letters, 14 selfloop transitions, 9 changer transitions 19/94 dead transitions. [2022-09-20 20:41:59,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 94 transitions, 554 flow [2022-09-20 20:41:59,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-20 20:41:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-20 20:41:59,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 628 transitions. [2022-09-20 20:41:59,755 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8486486486486486 [2022-09-20 20:41:59,755 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 628 transitions. [2022-09-20 20:41:59,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 628 transitions. [2022-09-20 20:41:59,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:41:59,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 628 transitions. [2022-09-20 20:41:59,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 62.8) internal successors, (628), 10 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:41:59,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:41:59,760 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:41:59,760 INFO L175 Difference]: Start difference. First operand has 95 places, 68 transitions, 260 flow. Second operand 10 states and 628 transitions. [2022-09-20 20:41:59,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 94 transitions, 554 flow [2022-09-20 20:41:59,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 94 transitions, 470 flow, removed 42 selfloop flow, removed 9 redundant places. [2022-09-20 20:41:59,768 INFO L231 Difference]: Finished difference. Result has 90 places, 71 transitions, 275 flow [2022-09-20 20:41:59,768 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=275, PETRI_PLACES=90, PETRI_TRANSITIONS=71} [2022-09-20 20:41:59,769 INFO L287 CegarLoopForPetriNet]: 66 programPoint places, 24 predicate places. [2022-09-20 20:41:59,769 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 71 transitions, 275 flow [2022-09-20 20:41:59,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:41:59,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:41:59,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:41:59,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 20:41:59,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 20:41:59,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:41:59,771 INFO L85 PathProgramCache]: Analyzing trace with hash 759905860, now seen corresponding path program 1 times [2022-09-20 20:41:59,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:41:59,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361769394] [2022-09-20 20:41:59,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:41:59,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:41:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:41:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:41:59,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:41:59,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361769394] [2022-09-20 20:41:59,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361769394] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:41:59,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:41:59,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 20:41:59,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489468609] [2022-09-20 20:41:59,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:41:59,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 20:41:59,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:41:59,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 20:41:59,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 20:41:59,877 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 74 [2022-09-20 20:41:59,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 71 transitions, 275 flow. Second operand has 7 states, 7 states have (on average 60.42857142857143) internal successors, (423), 7 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:41:59,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:41:59,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 74 [2022-09-20 20:41:59,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:42:00,010 INFO L130 PetriNetUnfolder]: 33/209 cut-off events. [2022-09-20 20:42:00,011 INFO L131 PetriNetUnfolder]: For 804/1024 co-relation queries the response was YES. [2022-09-20 20:42:00,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 209 events. 33/209 cut-off events. For 804/1024 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 977 event pairs, 0 based on Foata normal form. 22/226 useless extension candidates. Maximal degree in co-relation 656. Up to 48 conditions per place. [2022-09-20 20:42:00,012 INFO L137 encePairwiseOnDemand]: 65/74 looper letters, 12 selfloop transitions, 12 changer transitions 11/86 dead transitions. [2022-09-20 20:42:00,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 86 transitions, 441 flow [2022-09-20 20:42:00,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 20:42:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 20:42:00,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 802 transitions. [2022-09-20 20:42:00,015 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8336798336798337 [2022-09-20 20:42:00,015 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 802 transitions. [2022-09-20 20:42:00,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 802 transitions. [2022-09-20 20:42:00,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:42:00,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 802 transitions. [2022-09-20 20:42:00,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 61.69230769230769) internal successors, (802), 13 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:42:00,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:42:00,019 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:42:00,019 INFO L175 Difference]: Start difference. First operand has 90 places, 71 transitions, 275 flow. Second operand 13 states and 802 transitions. [2022-09-20 20:42:00,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 86 transitions, 441 flow [2022-09-20 20:42:00,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 86 transitions, 399 flow, removed 20 selfloop flow, removed 3 redundant places. [2022-09-20 20:42:00,024 INFO L231 Difference]: Finished difference. Result has 104 places, 73 transitions, 314 flow [2022-09-20 20:42:00,024 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=314, PETRI_PLACES=104, PETRI_TRANSITIONS=73} [2022-09-20 20:42:00,025 INFO L287 CegarLoopForPetriNet]: 66 programPoint places, 38 predicate places. [2022-09-20 20:42:00,025 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 73 transitions, 314 flow [2022-09-20 20:42:00,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.42857142857143) internal successors, (423), 7 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:42:00,025 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:42:00,025 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:42:00,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 20:42:00,026 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 20:42:00,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:42:00,026 INFO L85 PathProgramCache]: Analyzing trace with hash -384852248, now seen corresponding path program 1 times [2022-09-20 20:42:00,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:42:00,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559372820] [2022-09-20 20:42:00,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:42:00,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:42:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:42:00,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:42:00,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:42:00,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559372820] [2022-09-20 20:42:00,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559372820] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:42:00,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:42:00,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 20:42:00,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782688800] [2022-09-20 20:42:00,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:42:00,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 20:42:00,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:42:00,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 20:42:00,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-20 20:42:00,140 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 74 [2022-09-20 20:42:00,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 73 transitions, 314 flow. Second operand has 7 states, 7 states have (on average 59.714285714285715) internal successors, (418), 7 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:42:00,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:42:00,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 74 [2022-09-20 20:42:00,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:42:00,228 INFO L130 PetriNetUnfolder]: 9/215 cut-off events. [2022-09-20 20:42:00,229 INFO L131 PetriNetUnfolder]: For 451/456 co-relation queries the response was YES. [2022-09-20 20:42:00,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 215 events. 9/215 cut-off events. For 451/456 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1210 event pairs, 1 based on Foata normal form. 4/211 useless extension candidates. Maximal degree in co-relation 559. Up to 32 conditions per place. [2022-09-20 20:42:00,230 INFO L137 encePairwiseOnDemand]: 68/74 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2022-09-20 20:42:00,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 72 transitions, 344 flow [2022-09-20 20:42:00,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 20:42:00,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 20:42:00,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 419 transitions. [2022-09-20 20:42:00,232 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8088803088803089 [2022-09-20 20:42:00,232 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 419 transitions. [2022-09-20 20:42:00,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 419 transitions. [2022-09-20 20:42:00,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:42:00,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 419 transitions. [2022-09-20 20:42:00,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 59.857142857142854) internal successors, (419), 7 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:42:00,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:42:00,235 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:42:00,235 INFO L175 Difference]: Start difference. First operand has 104 places, 73 transitions, 314 flow. Second operand 7 states and 419 transitions. [2022-09-20 20:42:00,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 72 transitions, 344 flow [2022-09-20 20:42:00,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 72 transitions, 303 flow, removed 9 selfloop flow, removed 11 redundant places. [2022-09-20 20:42:00,239 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2022-09-20 20:42:00,239 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2022-09-20 20:42:00,240 INFO L287 CegarLoopForPetriNet]: 66 programPoint places, 28 predicate places. [2022-09-20 20:42:00,240 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2022-09-20 20:42:00,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.714285714285715) internal successors, (418), 7 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:42:00,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-09-20 20:42:00,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-09-20 20:42:00,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-09-20 20:42:00,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 20:42:00,244 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-09-20 20:42:00,247 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 20:42:00,247 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 20:42:00,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 08:42:00 BasicIcfg [2022-09-20 20:42:00,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 20:42:00,252 INFO L158 Benchmark]: Toolchain (without parser) took 2800.04ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 163.0MB in the beginning and 114.1MB in the end (delta: 48.9MB). Peak memory consumption was 135.4MB. Max. memory is 8.0GB. [2022-09-20 20:42:00,253 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 150.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 20:42:00,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.20ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 162.7MB in the beginning and 241.4MB in the end (delta: -78.6MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2022-09-20 20:42:00,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.06ms. Allocated memory is still 282.1MB. Free memory was 241.4MB in the beginning and 239.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 20:42:00,254 INFO L158 Benchmark]: Boogie Preprocessor took 37.42ms. Allocated memory is still 282.1MB. Free memory was 239.4MB in the beginning and 238.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 20:42:00,254 INFO L158 Benchmark]: RCFGBuilder took 362.39ms. Allocated memory is still 282.1MB. Free memory was 238.1MB in the beginning and 226.9MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-09-20 20:42:00,255 INFO L158 Benchmark]: TraceAbstraction took 1917.24ms. Allocated memory is still 282.1MB. Free memory was 226.2MB in the beginning and 114.1MB in the end (delta: 112.1MB). Peak memory consumption was 113.0MB. Max. memory is 8.0GB. [2022-09-20 20:42:00,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 150.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 423.20ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 162.7MB in the beginning and 241.4MB in the end (delta: -78.6MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.06ms. Allocated memory is still 282.1MB. Free memory was 241.4MB in the beginning and 239.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.42ms. Allocated memory is still 282.1MB. Free memory was 239.4MB in the beginning and 238.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 362.39ms. Allocated memory is still 282.1MB. Free memory was 238.1MB in the beginning and 226.9MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1917.24ms. Allocated memory is still 282.1MB. Free memory was 226.2MB in the beginning and 114.1MB in the end (delta: 112.1MB). Peak memory consumption was 113.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 89 locations, 3 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: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 168 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 153 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 37 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=3, InterpolantAutomatonStates: 47, 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, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 692 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-20 20:42:00,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...