/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/weaver/popl20-threaded-sum-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 11:47:19,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 11:47:19,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 11:47:19,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 11:47:19,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 11:47:19,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 11:47:19,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 11:47:19,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 11:47:19,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 11:47:19,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 11:47:19,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 11:47:19,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 11:47:19,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 11:47:19,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 11:47:19,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 11:47:19,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 11:47:19,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 11:47:19,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 11:47:19,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 11:47:19,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 11:47:19,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 11:47:19,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 11:47:19,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 11:47:19,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 11:47:19,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 11:47:19,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 11:47:19,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 11:47:19,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 11:47:19,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 11:47:19,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 11:47:19,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 11:47:19,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 11:47:19,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 11:47:19,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 11:47:19,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 11:47:19,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 11:47:19,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 11:47:19,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 11:47:19,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 11:47:19,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 11:47:19,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 11:47:19,529 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 11:47:19,562 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 11:47:19,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 11:47:19,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 11:47:19,564 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 11:47:19,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 11:47:19,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 11:47:19,565 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 11:47:19,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 11:47:19,565 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 11:47:19,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 11:47:19,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 11:47:19,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 11:47:19,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 11:47:19,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 11:47:19,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 11:47:19,567 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 11:47:19,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 11:47:19,567 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 11:47:19,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 11:47:19,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 11:47:19,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 11:47:19,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 11:47:19,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 11:47:19,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 11:47:19,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 11:47:19,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 11:47:19,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 11:47:19,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 11:47:19,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 11:47:19,569 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 11:47:19,570 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 11:47:19,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 11:47:19,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 11:47:19,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 11:47:19,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 11:47:19,825 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 11:47:19,825 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 11:47:19,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2023-01-28 11:47:21,013 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 11:47:21,151 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 11:47:21,151 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2023-01-28 11:47:21,160 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee3377e46/7bfca6c15e7643e8a03a871919bc7f16/FLAG91149d69c [2023-01-28 11:47:21,175 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee3377e46/7bfca6c15e7643e8a03a871919bc7f16 [2023-01-28 11:47:21,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 11:47:21,178 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 11:47:21,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 11:47:21,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 11:47:21,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 11:47:21,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7911ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21, skipping insertion in model container [2023-01-28 11:47:21,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 11:47:21,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 11:47:21,320 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2957,2970] [2023-01-28 11:47:21,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 11:47:21,331 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 11:47:21,351 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2957,2970] [2023-01-28 11:47:21,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 11:47:21,358 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 11:47:21,359 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 11:47:21,364 INFO L208 MainTranslator]: Completed translation [2023-01-28 11:47:21,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21 WrapperNode [2023-01-28 11:47:21,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 11:47:21,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 11:47:21,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 11:47:21,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 11:47:21,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,393 INFO L138 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2023-01-28 11:47:21,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 11:47:21,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 11:47:21,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 11:47:21,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 11:47:21,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,413 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 11:47:21,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 11:47:21,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 11:47:21,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 11:47:21,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (1/1) ... [2023-01-28 11:47:21,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 11:47:21,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:47:21,446 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 11:47:21,467 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 11:47:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 11:47:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 11:47:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 11:47:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 11:47:21,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 11:47:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 11:47:21,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 11:47:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 11:47:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 11:47:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 11:47:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 11:47:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 11:47:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 11:47:21,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 11:47:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 11:47:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 11:47:21,493 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 11:47:21,579 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 11:47:21,581 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 11:47:21,949 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 11:47:22,038 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 11:47:22,038 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-01-28 11:47:22,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:47:22 BoogieIcfgContainer [2023-01-28 11:47:22,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 11:47:22,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 11:47:22,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 11:47:22,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 11:47:22,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 11:47:21" (1/3) ... [2023-01-28 11:47:22,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b6bc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 11:47:22, skipping insertion in model container [2023-01-28 11:47:22,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:47:21" (2/3) ... [2023-01-28 11:47:22,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b6bc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 11:47:22, skipping insertion in model container [2023-01-28 11:47:22,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:47:22" (3/3) ... [2023-01-28 11:47:22,052 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2023-01-28 11:47:22,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 11:47:22,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 11:47:22,067 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 11:47:22,155 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-28 11:47:22,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 111 transitions, 246 flow [2023-01-28 11:47:22,248 INFO L130 PetriNetUnfolder]: 8/108 cut-off events. [2023-01-28 11:47:22,249 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 11:47:22,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 8/108 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-01-28 11:47:22,254 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 111 transitions, 246 flow [2023-01-28 11:47:22,258 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 98 transitions, 214 flow [2023-01-28 11:47:22,261 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 11:47:22,273 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 98 transitions, 214 flow [2023-01-28 11:47:22,275 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 98 transitions, 214 flow [2023-01-28 11:47:22,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 98 transitions, 214 flow [2023-01-28 11:47:22,312 INFO L130 PetriNetUnfolder]: 8/98 cut-off events. [2023-01-28 11:47:22,312 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 11:47:22,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 98 events. 8/98 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-01-28 11:47:22,314 INFO L119 LiptonReduction]: Number of co-enabled transitions 1010 [2023-01-28 11:47:25,158 INFO L134 LiptonReduction]: Checked pairs total: 1725 [2023-01-28 11:47:25,158 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-01-28 11:47:25,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 11:47:25,176 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;@616d4572, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 11:47:25,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 11:47:25,182 INFO L130 PetriNetUnfolder]: 3/24 cut-off events. [2023-01-28 11:47:25,182 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 11:47:25,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:47:25,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 11:47:25,183 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:47:25,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:47:25,187 INFO L85 PathProgramCache]: Analyzing trace with hash -807744710, now seen corresponding path program 1 times [2023-01-28 11:47:25,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:47:25,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142165129] [2023-01-28 11:47:25,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:47:25,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:47:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:47:26,038 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 11:47:26,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:47:26,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142165129] [2023-01-28 11:47:26,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142165129] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 11:47:26,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 11:47:26,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 11:47:26,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831315244] [2023-01-28 11:47:26,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 11:47:26,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 11:47:26,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:47:26,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 11:47:26,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 11:47:26,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2023-01-28 11:47:26,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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 11:47:26,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:47:26,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2023-01-28 11:47:26,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:47:26,345 INFO L130 PetriNetUnfolder]: 767/1086 cut-off events. [2023-01-28 11:47:26,346 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2023-01-28 11:47:26,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2257 conditions, 1086 events. 767/1086 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3950 event pairs, 109 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 2171. Up to 681 conditions per place. [2023-01-28 11:47:26,356 INFO L137 encePairwiseOnDemand]: 189/195 looper letters, 50 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2023-01-28 11:47:26,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 58 transitions, 260 flow [2023-01-28 11:47:26,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 11:47:26,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 11:47:26,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 474 transitions. [2023-01-28 11:47:26,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48615384615384616 [2023-01-28 11:47:26,377 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 474 transitions. [2023-01-28 11:47:26,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 474 transitions. [2023-01-28 11:47:26,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:47:26,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 474 transitions. [2023-01-28 11:47:26,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 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 11:47:26,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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 11:47:26,392 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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 11:47:26,393 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 68 flow. Second operand 5 states and 474 transitions. [2023-01-28 11:47:26,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 58 transitions, 260 flow [2023-01-28 11:47:26,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 58 transitions, 240 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-28 11:47:26,398 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 108 flow [2023-01-28 11:47:26,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2023-01-28 11:47:26,402 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2023-01-28 11:47:26,403 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 108 flow [2023-01-28 11:47:26,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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 11:47:26,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:47:26,403 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] [2023-01-28 11:47:26,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 11:47:26,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:47:26,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:47:26,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1820244098, now seen corresponding path program 1 times [2023-01-28 11:47:26,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:47:26,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105077818] [2023-01-28 11:47:26,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:47:26,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:47:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:47:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:26,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:47:26,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105077818] [2023-01-28 11:47:26,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105077818] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 11:47:26,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 11:47:26,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 11:47:26,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509602681] [2023-01-28 11:47:26,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 11:47:26,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 11:47:26,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:47:26,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 11:47:26,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 11:47:26,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2023-01-28 11:47:26,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 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 11:47:26,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:47:26,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2023-01-28 11:47:26,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:47:26,873 INFO L130 PetriNetUnfolder]: 997/1420 cut-off events. [2023-01-28 11:47:26,873 INFO L131 PetriNetUnfolder]: For 684/684 co-relation queries the response was YES. [2023-01-28 11:47:26,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3697 conditions, 1420 events. 997/1420 cut-off events. For 684/684 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5321 event pairs, 149 based on Foata normal form. 48/1468 useless extension candidates. Maximal degree in co-relation 1963. Up to 672 conditions per place. [2023-01-28 11:47:26,882 INFO L137 encePairwiseOnDemand]: 189/195 looper letters, 59 selfloop transitions, 10 changer transitions 2/71 dead transitions. [2023-01-28 11:47:26,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 71 transitions, 373 flow [2023-01-28 11:47:26,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 11:47:26,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 11:47:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 564 transitions. [2023-01-28 11:47:26,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48205128205128206 [2023-01-28 11:47:26,885 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 564 transitions. [2023-01-28 11:47:26,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 564 transitions. [2023-01-28 11:47:26,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:47:26,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 564 transitions. [2023-01-28 11:47:26,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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 11:47:26,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 11:47:26,890 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 11:47:26,890 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 108 flow. Second operand 6 states and 564 transitions. [2023-01-28 11:47:26,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 71 transitions, 373 flow [2023-01-28 11:47:26,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 71 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 11:47:26,896 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 189 flow [2023-01-28 11:47:26,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=189, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2023-01-28 11:47:26,897 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2023-01-28 11:47:26,897 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 189 flow [2023-01-28 11:47:26,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 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 11:47:26,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:47:26,897 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] [2023-01-28 11:47:26,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 11:47:26,898 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:47:26,900 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:47:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1826456622, now seen corresponding path program 2 times [2023-01-28 11:47:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:47:26,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505047330] [2023-01-28 11:47:26,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:47:26,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:47:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:47:27,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:27,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:47:27,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505047330] [2023-01-28 11:47:27,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505047330] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 11:47:27,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 11:47:27,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 11:47:27,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936977748] [2023-01-28 11:47:27,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 11:47:27,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 11:47:27,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:47:27,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 11:47:27,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 11:47:27,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 195 [2023-01-28 11:47:27,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 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 11:47:27,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:47:27,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 195 [2023-01-28 11:47:27,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:47:27,593 INFO L130 PetriNetUnfolder]: 1327/1918 cut-off events. [2023-01-28 11:47:27,593 INFO L131 PetriNetUnfolder]: For 3235/3235 co-relation queries the response was YES. [2023-01-28 11:47:27,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6078 conditions, 1918 events. 1327/1918 cut-off events. For 3235/3235 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7964 event pairs, 281 based on Foata normal form. 16/1934 useless extension candidates. Maximal degree in co-relation 3318. Up to 1027 conditions per place. [2023-01-28 11:47:27,602 INFO L137 encePairwiseOnDemand]: 188/195 looper letters, 80 selfloop transitions, 22 changer transitions 10/112 dead transitions. [2023-01-28 11:47:27,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 112 transitions, 819 flow [2023-01-28 11:47:27,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 11:47:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 11:47:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2023-01-28 11:47:27,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4777777777777778 [2023-01-28 11:47:27,605 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 559 transitions. [2023-01-28 11:47:27,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 559 transitions. [2023-01-28 11:47:27,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:47:27,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 559 transitions. [2023-01-28 11:47:27,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 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 11:47:27,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 11:47:27,609 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 11:47:27,609 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 189 flow. Second operand 6 states and 559 transitions. [2023-01-28 11:47:27,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 112 transitions, 819 flow [2023-01-28 11:47:27,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 112 transitions, 818 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 11:47:27,620 INFO L231 Difference]: Finished difference. Result has 47 places, 56 transitions, 397 flow [2023-01-28 11:47:27,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=397, PETRI_PLACES=47, PETRI_TRANSITIONS=56} [2023-01-28 11:47:27,622 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2023-01-28 11:47:27,624 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 56 transitions, 397 flow [2023-01-28 11:47:27,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 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 11:47:27,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:47:27,625 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] [2023-01-28 11:47:27,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 11:47:27,625 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:47:27,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:47:27,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1205848806, now seen corresponding path program 3 times [2023-01-28 11:47:27,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:47:27,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960893964] [2023-01-28 11:47:27,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:47:27,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:47:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:47:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:27,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:47:27,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960893964] [2023-01-28 11:47:27,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960893964] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:47:27,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703911416] [2023-01-28 11:47:27,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 11:47:27,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:47:27,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:47:27,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:47:27,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 11:47:28,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-01-28 11:47:28,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 11:47:28,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-28 11:47:28,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:47:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 11:47:28,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 11:47:28,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703911416] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 11:47:28,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 11:47:28,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-01-28 11:47:28,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168824794] [2023-01-28 11:47:28,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 11:47:28,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 11:47:28,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:47:28,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 11:47:28,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-01-28 11:47:28,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2023-01-28 11:47:28,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 56 transitions, 397 flow. Second operand has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 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 11:47:28,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:47:28,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2023-01-28 11:47:28,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:47:28,432 INFO L130 PetriNetUnfolder]: 1893/2749 cut-off events. [2023-01-28 11:47:28,432 INFO L131 PetriNetUnfolder]: For 7782/8005 co-relation queries the response was YES. [2023-01-28 11:47:28,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10958 conditions, 2749 events. 1893/2749 cut-off events. For 7782/8005 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 13309 event pairs, 177 based on Foata normal form. 257/2968 useless extension candidates. Maximal degree in co-relation 6508. Up to 1507 conditions per place. [2023-01-28 11:47:28,454 INFO L137 encePairwiseOnDemand]: 189/195 looper letters, 122 selfloop transitions, 16 changer transitions 0/141 dead transitions. [2023-01-28 11:47:28,455 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 141 transitions, 1320 flow [2023-01-28 11:47:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 11:47:28,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 11:47:28,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 503 transitions. [2023-01-28 11:47:28,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5158974358974359 [2023-01-28 11:47:28,457 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 503 transitions. [2023-01-28 11:47:28,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 503 transitions. [2023-01-28 11:47:28,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:47:28,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 503 transitions. [2023-01-28 11:47:28,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 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 11:47:28,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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 11:47:28,460 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 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 11:47:28,461 INFO L175 Difference]: Start difference. First operand has 47 places, 56 transitions, 397 flow. Second operand 5 states and 503 transitions. [2023-01-28 11:47:28,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 141 transitions, 1320 flow [2023-01-28 11:47:28,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 141 transitions, 1320 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 11:47:28,473 INFO L231 Difference]: Finished difference. Result has 53 places, 69 transitions, 579 flow [2023-01-28 11:47:28,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=579, PETRI_PLACES=53, PETRI_TRANSITIONS=69} [2023-01-28 11:47:28,473 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 21 predicate places. [2023-01-28 11:47:28,474 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 69 transitions, 579 flow [2023-01-28 11:47:28,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 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 11:47:28,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:47:28,474 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] [2023-01-28 11:47:28,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 11:47:28,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:47:28,680 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:47:28,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:47:28,681 INFO L85 PathProgramCache]: Analyzing trace with hash 582364476, now seen corresponding path program 1 times [2023-01-28 11:47:28,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:47:28,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072833734] [2023-01-28 11:47:28,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:47:28,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:47:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:47:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:30,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:47:30,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072833734] [2023-01-28 11:47:30,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072833734] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:47:30,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451978150] [2023-01-28 11:47:30,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:47:30,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:47:30,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:47:30,174 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:47:30,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 11:47:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:47:30,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 29 conjunts are in the unsatisfiable core [2023-01-28 11:47:30,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:47:31,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:31,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:47:33,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:33,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451978150] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 11:47:33,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 11:47:33,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2023-01-28 11:47:33,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390338821] [2023-01-28 11:47:33,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 11:47:33,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-01-28 11:47:33,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:47:33,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-01-28 11:47:33,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2023-01-28 11:47:33,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 195 [2023-01-28 11:47:33,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 69 transitions, 579 flow. Second operand has 22 states, 22 states have (on average 74.86363636363636) internal successors, (1647), 22 states have internal predecessors, (1647), 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 11:47:33,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:47:33,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 195 [2023-01-28 11:47:33,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:47:46,398 INFO L130 PetriNetUnfolder]: 9961/14297 cut-off events. [2023-01-28 11:47:46,398 INFO L131 PetriNetUnfolder]: For 48654/48654 co-relation queries the response was YES. [2023-01-28 11:47:46,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62631 conditions, 14297 events. 9961/14297 cut-off events. For 48654/48654 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 80101 event pairs, 358 based on Foata normal form. 17/14314 useless extension candidates. Maximal degree in co-relation 29726. Up to 3559 conditions per place. [2023-01-28 11:47:46,506 INFO L137 encePairwiseOnDemand]: 186/195 looper letters, 357 selfloop transitions, 428 changer transitions 218/1003 dead transitions. [2023-01-28 11:47:46,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 1003 transitions, 9772 flow [2023-01-28 11:47:46,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-01-28 11:47:46,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2023-01-28 11:47:46,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 4542 transitions. [2023-01-28 11:47:46,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4234965034965035 [2023-01-28 11:47:46,519 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 4542 transitions. [2023-01-28 11:47:46,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 4542 transitions. [2023-01-28 11:47:46,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:47:46,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 4542 transitions. [2023-01-28 11:47:46,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 82.58181818181818) internal successors, (4542), 55 states have internal predecessors, (4542), 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 11:47:46,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 195.0) internal successors, (10920), 56 states have internal predecessors, (10920), 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 11:47:46,547 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 195.0) internal successors, (10920), 56 states have internal predecessors, (10920), 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 11:47:46,547 INFO L175 Difference]: Start difference. First operand has 53 places, 69 transitions, 579 flow. Second operand 55 states and 4542 transitions. [2023-01-28 11:47:46,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 1003 transitions, 9772 flow [2023-01-28 11:47:46,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 1003 transitions, 9730 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 11:47:46,646 INFO L231 Difference]: Finished difference. Result has 120 places, 516 transitions, 6333 flow [2023-01-28 11:47:46,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=55, PETRI_FLOW=6333, PETRI_PLACES=120, PETRI_TRANSITIONS=516} [2023-01-28 11:47:46,647 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 88 predicate places. [2023-01-28 11:47:46,647 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 516 transitions, 6333 flow [2023-01-28 11:47:46,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 74.86363636363636) internal successors, (1647), 22 states have internal predecessors, (1647), 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 11:47:46,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:47:46,648 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] [2023-01-28 11:47:46,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-01-28 11:47:46,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:47:46,854 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:47:46,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:47:46,854 INFO L85 PathProgramCache]: Analyzing trace with hash -508209307, now seen corresponding path program 1 times [2023-01-28 11:47:46,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:47:46,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922128136] [2023-01-28 11:47:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:47:46,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:47:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:47:47,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:47,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:47:47,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922128136] [2023-01-28 11:47:47,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922128136] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:47:47,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088387741] [2023-01-28 11:47:47,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:47:47,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:47:47,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:47:47,341 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:47:47,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 11:47:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:47:47,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 13 conjunts are in the unsatisfiable core [2023-01-28 11:47:47,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:47:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 11:47:47,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:47:47,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:47,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088387741] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 11:47:47,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 11:47:47,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 14 [2023-01-28 11:47:47,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218949947] [2023-01-28 11:47:47,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 11:47:47,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-01-28 11:47:47,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:47:47,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-01-28 11:47:47,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-01-28 11:47:47,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 195 [2023-01-28 11:47:47,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 516 transitions, 6333 flow. Second operand has 14 states, 14 states have (on average 80.64285714285714) internal successors, (1129), 14 states have internal predecessors, (1129), 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 11:47:47,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:47:47,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 195 [2023-01-28 11:47:47,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:47:49,549 INFO L130 PetriNetUnfolder]: 9010/12765 cut-off events. [2023-01-28 11:47:49,549 INFO L131 PetriNetUnfolder]: For 63887/63887 co-relation queries the response was YES. [2023-01-28 11:47:49,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61827 conditions, 12765 events. 9010/12765 cut-off events. For 63887/63887 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 69410 event pairs, 105 based on Foata normal form. 914/13679 useless extension candidates. Maximal degree in co-relation 61701. Up to 4649 conditions per place. [2023-01-28 11:47:49,637 INFO L137 encePairwiseOnDemand]: 186/195 looper letters, 683 selfloop transitions, 304 changer transitions 0/987 dead transitions. [2023-01-28 11:47:49,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 987 transitions, 13183 flow [2023-01-28 11:47:49,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-28 11:47:49,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-01-28 11:47:49,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1131 transitions. [2023-01-28 11:47:49,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461538461538462 [2023-01-28 11:47:49,641 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1131 transitions. [2023-01-28 11:47:49,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1131 transitions. [2023-01-28 11:47:49,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:47:49,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1131 transitions. [2023-01-28 11:47:49,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.0) internal successors, (1131), 13 states have internal predecessors, (1131), 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 11:47:49,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 195.0) internal successors, (2730), 14 states have internal predecessors, (2730), 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 11:47:49,648 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 195.0) internal successors, (2730), 14 states have internal predecessors, (2730), 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 11:47:49,648 INFO L175 Difference]: Start difference. First operand has 120 places, 516 transitions, 6333 flow. Second operand 13 states and 1131 transitions. [2023-01-28 11:47:49,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 987 transitions, 13183 flow [2023-01-28 11:47:49,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 987 transitions, 11004 flow, removed 1085 selfloop flow, removed 11 redundant places. [2023-01-28 11:47:49,868 INFO L231 Difference]: Finished difference. Result has 115 places, 543 transitions, 6488 flow [2023-01-28 11:47:49,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=3834, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6488, PETRI_PLACES=115, PETRI_TRANSITIONS=543} [2023-01-28 11:47:49,869 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 83 predicate places. [2023-01-28 11:47:49,869 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 543 transitions, 6488 flow [2023-01-28 11:47:49,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 80.64285714285714) internal successors, (1129), 14 states have internal predecessors, (1129), 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 11:47:49,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:47:49,870 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] [2023-01-28 11:47:49,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 11:47:50,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:47:50,076 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:47:50,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:47:50,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1579273131, now seen corresponding path program 2 times [2023-01-28 11:47:50,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:47:50,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300753444] [2023-01-28 11:47:50,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:47:50,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:47:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:47:50,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:50,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:47:50,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300753444] [2023-01-28 11:47:50,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300753444] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:47:50,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849563262] [2023-01-28 11:47:50,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 11:47:50,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:47:50,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:47:50,309 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:47:50,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 11:47:50,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 11:47:50,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 11:47:50,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 13 conjunts are in the unsatisfiable core [2023-01-28 11:47:50,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:47:50,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:50,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:47:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:50,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849563262] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 11:47:50,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 11:47:50,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12 [2023-01-28 11:47:50,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767675854] [2023-01-28 11:47:50,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 11:47:50,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 11:47:50,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:47:50,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 11:47:50,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-01-28 11:47:50,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2023-01-28 11:47:50,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 543 transitions, 6488 flow. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 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 11:47:50,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:47:50,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2023-01-28 11:47:50,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:47:52,425 INFO L130 PetriNetUnfolder]: 11204/16037 cut-off events. [2023-01-28 11:47:52,426 INFO L131 PetriNetUnfolder]: For 80035/80035 co-relation queries the response was YES. [2023-01-28 11:47:52,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85237 conditions, 16037 events. 11204/16037 cut-off events. For 80035/80035 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 92771 event pairs, 793 based on Foata normal form. 382/16419 useless extension candidates. Maximal degree in co-relation 76365. Up to 5546 conditions per place. [2023-01-28 11:47:52,535 INFO L137 encePairwiseOnDemand]: 187/195 looper letters, 820 selfloop transitions, 321 changer transitions 0/1141 dead transitions. [2023-01-28 11:47:52,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 1141 transitions, 14891 flow [2023-01-28 11:47:52,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 11:47:52,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 11:47:52,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 583 transitions. [2023-01-28 11:47:52,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4982905982905983 [2023-01-28 11:47:52,537 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 583 transitions. [2023-01-28 11:47:52,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 583 transitions. [2023-01-28 11:47:52,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:47:52,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 583 transitions. [2023-01-28 11:47:52,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 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 11:47:52,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 11:47:52,541 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 11:47:52,541 INFO L175 Difference]: Start difference. First operand has 115 places, 543 transitions, 6488 flow. Second operand 6 states and 583 transitions. [2023-01-28 11:47:52,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 1141 transitions, 14891 flow [2023-01-28 11:47:53,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 1141 transitions, 14549 flow, removed 169 selfloop flow, removed 2 redundant places. [2023-01-28 11:47:53,076 INFO L231 Difference]: Finished difference. Result has 122 places, 749 transitions, 10016 flow [2023-01-28 11:47:53,077 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=6303, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10016, PETRI_PLACES=122, PETRI_TRANSITIONS=749} [2023-01-28 11:47:53,077 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 90 predicate places. [2023-01-28 11:47:53,077 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 749 transitions, 10016 flow [2023-01-28 11:47:53,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 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 11:47:53,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:47:53,078 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] [2023-01-28 11:47:53,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-01-28 11:47:53,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:47:53,282 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:47:53,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:47:53,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1321199193, now seen corresponding path program 3 times [2023-01-28 11:47:53,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:47:53,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166172916] [2023-01-28 11:47:53,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:47:53,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:47:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:47:53,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:53,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:47:53,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166172916] [2023-01-28 11:47:53,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166172916] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:47:53,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115995874] [2023-01-28 11:47:53,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 11:47:53,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:47:53,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:47:53,650 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:47:53,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-28 11:47:53,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-01-28 11:47:53,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 11:47:53,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 16 conjunts are in the unsatisfiable core [2023-01-28 11:47:53,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:47:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:53,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:47:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:47:53,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115995874] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 11:47:53,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 11:47:53,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-01-28 11:47:53,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135760562] [2023-01-28 11:47:53,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 11:47:53,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-28 11:47:53,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:47:53,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-28 11:47:53,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-01-28 11:47:53,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 195 [2023-01-28 11:47:53,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 749 transitions, 10016 flow. Second operand has 11 states, 11 states have (on average 85.63636363636364) internal successors, (942), 11 states have internal predecessors, (942), 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 11:47:53,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:47:53,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 195 [2023-01-28 11:47:53,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:48:00,942 INFO L130 PetriNetUnfolder]: 30041/43061 cut-off events. [2023-01-28 11:48:00,943 INFO L131 PetriNetUnfolder]: For 308392/308413 co-relation queries the response was YES. [2023-01-28 11:48:01,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259551 conditions, 43061 events. 30041/43061 cut-off events. For 308392/308413 co-relation queries the response was YES. Maximal size of possible extension queue 2100. Compared 282442 event pairs, 1506 based on Foata normal form. 2002/45051 useless extension candidates. Maximal degree in co-relation 219571. Up to 9707 conditions per place. [2023-01-28 11:48:01,375 INFO L137 encePairwiseOnDemand]: 186/195 looper letters, 1854 selfloop transitions, 1817 changer transitions 4/3678 dead transitions. [2023-01-28 11:48:01,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 3678 transitions, 54751 flow [2023-01-28 11:48:01,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-01-28 11:48:01,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-01-28 11:48:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3208 transitions. [2023-01-28 11:48:01,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47003663003663004 [2023-01-28 11:48:01,383 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 3208 transitions. [2023-01-28 11:48:01,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 3208 transitions. [2023-01-28 11:48:01,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:48:01,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 3208 transitions. [2023-01-28 11:48:01,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 91.65714285714286) internal successors, (3208), 35 states have internal predecessors, (3208), 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 11:48:01,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 195.0) internal successors, (7020), 36 states have internal predecessors, (7020), 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 11:48:01,403 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 195.0) internal successors, (7020), 36 states have internal predecessors, (7020), 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 11:48:01,403 INFO L175 Difference]: Start difference. First operand has 122 places, 749 transitions, 10016 flow. Second operand 35 states and 3208 transitions. [2023-01-28 11:48:01,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 3678 transitions, 54751 flow [2023-01-28 11:48:03,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 3678 transitions, 54197 flow, removed 277 selfloop flow, removed 0 redundant places. [2023-01-28 11:48:03,689 INFO L231 Difference]: Finished difference. Result has 180 places, 2322 transitions, 38001 flow [2023-01-28 11:48:03,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=9934, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=400, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=38001, PETRI_PLACES=180, PETRI_TRANSITIONS=2322} [2023-01-28 11:48:03,690 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 148 predicate places. [2023-01-28 11:48:03,690 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 2322 transitions, 38001 flow [2023-01-28 11:48:03,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 85.63636363636364) internal successors, (942), 11 states have internal predecessors, (942), 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 11:48:03,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:48:03,691 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] [2023-01-28 11:48:03,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-28 11:48:03,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:48:03,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:48:03,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:48:03,896 INFO L85 PathProgramCache]: Analyzing trace with hash 587723179, now seen corresponding path program 4 times [2023-01-28 11:48:03,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:48:03,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580919564] [2023-01-28 11:48:03,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:48:03,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:48:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:48:04,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:48:04,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:48:04,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580919564] [2023-01-28 11:48:04,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580919564] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:48:04,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789404012] [2023-01-28 11:48:04,244 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-28 11:48:04,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:48:04,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:48:04,246 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:48:04,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-28 11:48:04,317 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-28 11:48:04,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 11:48:04,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 26 conjunts are in the unsatisfiable core [2023-01-28 11:48:04,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:48:04,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:48:04,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:48:05,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:48:05,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789404012] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 11:48:05,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 11:48:05,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 9] total 19 [2023-01-28 11:48:05,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607783997] [2023-01-28 11:48:05,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 11:48:05,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-01-28 11:48:05,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:48:05,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-01-28 11:48:05,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2023-01-28 11:48:05,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 195 [2023-01-28 11:48:05,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 2322 transitions, 38001 flow. Second operand has 20 states, 20 states have (on average 73.85) internal successors, (1477), 20 states have internal predecessors, (1477), 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 11:48:05,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:48:05,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 195 [2023-01-28 11:48:05,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:48:41,345 INFO L130 PetriNetUnfolder]: 58565/85538 cut-off events. [2023-01-28 11:48:41,346 INFO L131 PetriNetUnfolder]: For 1634340/1634340 co-relation queries the response was YES. [2023-01-28 11:48:41,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649136 conditions, 85538 events. 58565/85538 cut-off events. For 1634340/1634340 co-relation queries the response was YES. Maximal size of possible extension queue 4373. Compared 637032 event pairs, 307 based on Foata normal form. 1440/86978 useless extension candidates. Maximal degree in co-relation 578261. Up to 18905 conditions per place. [2023-01-28 11:48:42,518 INFO L137 encePairwiseOnDemand]: 181/195 looper letters, 2940 selfloop transitions, 5332 changer transitions 51/8323 dead transitions. [2023-01-28 11:48:42,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 8323 transitions, 149772 flow [2023-01-28 11:48:42,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2023-01-28 11:48:42,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2023-01-28 11:48:42,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 9390 transitions. [2023-01-28 11:48:42,532 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4012820512820513 [2023-01-28 11:48:42,532 INFO L72 ComplementDD]: Start complementDD. Operand 120 states and 9390 transitions. [2023-01-28 11:48:42,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 9390 transitions. [2023-01-28 11:48:42,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:48:42,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 120 states and 9390 transitions. [2023-01-28 11:48:42,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 121 states, 120 states have (on average 78.25) internal successors, (9390), 120 states have internal predecessors, (9390), 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 11:48:42,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 121 states, 121 states have (on average 195.0) internal successors, (23595), 121 states have internal predecessors, (23595), 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 11:48:42,583 INFO L81 ComplementDD]: Finished complementDD. Result has 121 states, 121 states have (on average 195.0) internal successors, (23595), 121 states have internal predecessors, (23595), 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 11:48:42,583 INFO L175 Difference]: Start difference. First operand has 180 places, 2322 transitions, 38001 flow. Second operand 120 states and 9390 transitions. [2023-01-28 11:48:42,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 8323 transitions, 149772 flow [2023-01-28 11:49:04,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 8323 transitions, 144313 flow, removed 2706 selfloop flow, removed 2 redundant places. [2023-01-28 11:49:04,610 INFO L231 Difference]: Finished difference. Result has 375 places, 7036 transitions, 131192 flow [2023-01-28 11:49:04,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=36431, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=120, PETRI_FLOW=131192, PETRI_PLACES=375, PETRI_TRANSITIONS=7036} [2023-01-28 11:49:04,613 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 343 predicate places. [2023-01-28 11:49:04,613 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 7036 transitions, 131192 flow [2023-01-28 11:49:04,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 73.85) internal successors, (1477), 20 states have internal predecessors, (1477), 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 11:49:04,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:49:04,614 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] [2023-01-28 11:49:04,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-28 11:49:04,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:49:04,819 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:49:04,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:49:04,819 INFO L85 PathProgramCache]: Analyzing trace with hash 243404620, now seen corresponding path program 2 times [2023-01-28 11:49:04,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:49:04,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048623558] [2023-01-28 11:49:04,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:49:04,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:49:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:49:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:49:06,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:49:06,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048623558] [2023-01-28 11:49:06,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048623558] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:49:06,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500586075] [2023-01-28 11:49:06,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 11:49:06,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:49:06,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:49:06,849 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:49:06,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-28 11:49:06,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 11:49:06,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 11:49:06,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 32 conjunts are in the unsatisfiable core [2023-01-28 11:49:06,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:49:07,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:49:07,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:49:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:49:09,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500586075] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 11:49:09,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 11:49:09,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 25 [2023-01-28 11:49:09,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476447380] [2023-01-28 11:49:09,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 11:49:09,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-01-28 11:49:09,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:49:09,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-01-28 11:49:09,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2023-01-28 11:49:09,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 195 [2023-01-28 11:49:09,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 7036 transitions, 131192 flow. Second operand has 27 states, 27 states have (on average 72.55555555555556) internal successors, (1959), 27 states have internal predecessors, (1959), 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 11:49:09,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:49:09,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 195 [2023-01-28 11:49:09,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:52:28,578 INFO L130 PetriNetUnfolder]: 96931/142700 cut-off events. [2023-01-28 11:52:28,578 INFO L131 PetriNetUnfolder]: For 4896647/4896647 co-relation queries the response was YES. [2023-01-28 11:52:31,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1332375 conditions, 142700 events. 96931/142700 cut-off events. For 4896647/4896647 co-relation queries the response was YES. Maximal size of possible extension queue 7203. Compared 1147816 event pairs, 511 based on Foata normal form. 224/142924 useless extension candidates. Maximal degree in co-relation 1330552. Up to 37194 conditions per place. [2023-01-28 11:52:31,976 INFO L137 encePairwiseOnDemand]: 182/195 looper letters, 4962 selfloop transitions, 9580 changer transitions 1420/15962 dead transitions. [2023-01-28 11:52:31,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 15962 transitions, 328894 flow [2023-01-28 11:52:31,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2023-01-28 11:52:31,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2023-01-28 11:52:31,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 11112 transitions. [2023-01-28 11:52:31,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40130010834236185 [2023-01-28 11:52:31,990 INFO L72 ComplementDD]: Start complementDD. Operand 142 states and 11112 transitions. [2023-01-28 11:52:31,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 142 states and 11112 transitions. [2023-01-28 11:52:31,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:52:31,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 142 states and 11112 transitions. [2023-01-28 11:52:32,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 143 states, 142 states have (on average 78.25352112676056) internal successors, (11112), 142 states have internal predecessors, (11112), 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 11:52:32,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 143 states, 143 states have (on average 195.0) internal successors, (27885), 143 states have internal predecessors, (27885), 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 11:52:32,039 INFO L81 ComplementDD]: Finished complementDD. Result has 143 states, 143 states have (on average 195.0) internal successors, (27885), 143 states have internal predecessors, (27885), 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 11:52:32,040 INFO L175 Difference]: Start difference. First operand has 375 places, 7036 transitions, 131192 flow. Second operand 142 states and 11112 transitions. [2023-01-28 11:52:32,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 15962 transitions, 328894 flow [2023-01-28 11:58:44,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 15962 transitions, 313521 flow, removed 7650 selfloop flow, removed 6 redundant places. [2023-01-28 11:58:44,528 INFO L231 Difference]: Finished difference. Result has 593 places, 12545 transitions, 262274 flow [2023-01-28 11:58:44,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=124367, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7036, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4550, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=142, PETRI_FLOW=262274, PETRI_PLACES=593, PETRI_TRANSITIONS=12545} [2023-01-28 11:58:44,536 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 561 predicate places. [2023-01-28 11:58:44,536 INFO L495 AbstractCegarLoop]: Abstraction has has 593 places, 12545 transitions, 262274 flow [2023-01-28 11:58:44,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 72.55555555555556) internal successors, (1959), 27 states have internal predecessors, (1959), 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 11:58:44,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:58:44,537 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 11:58:44,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-28 11:58:44,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:58:44,742 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:58:44,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:58:44,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1754784722, now seen corresponding path program 3 times [2023-01-28 11:58:44,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:58:44,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856131097] [2023-01-28 11:58:44,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:58:44,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:58:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:58:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:58:50,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:58:50,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856131097] [2023-01-28 11:58:50,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856131097] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:58:50,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253399989] [2023-01-28 11:58:50,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 11:58:50,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:58:50,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:58:50,255 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:58:50,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-01-28 11:58:50,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-01-28 11:58:50,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 11:58:50,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 30 conjunts are in the unsatisfiable core [2023-01-28 11:58:50,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:58:52,088 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:58:52,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:58:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:58:57,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253399989] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 11:58:57,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 11:58:57,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 26 [2023-01-28 11:58:57,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638477722] [2023-01-28 11:58:57,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 11:58:57,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-01-28 11:58:57,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:58:57,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-01-28 11:58:57,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2023-01-28 11:58:57,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 195 [2023-01-28 11:58:57,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 12545 transitions, 262274 flow. Second operand has 28 states, 28 states have (on average 72.67857142857143) internal successors, (2035), 28 states have internal predecessors, (2035), 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 11:58:57,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:58:57,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 195 [2023-01-28 11:58:57,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:59:56,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-01-28 12:01:05,262 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 12:01:05,263 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 12:01:05,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-01-28 12:01:05,303 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 12:01:05,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-01-28 12:01:05,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-01-28 12:01:05,504 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 70/195 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 43766 conditions, 5138 events (3220/5137 cut-off events. For 180174/180174 co-relation queries the response was YES. Maximal size of possible extension queue 2098. Compared 40426 event pairs, 27 based on Foata normal form. 0/7233 useless extension candidates. Maximal degree in co-relation 43550. Up to 1149 conditions per place.). [2023-01-28 12:01:05,506 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 12:01:05,506 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 12:01:05,506 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-28 12:01:05,506 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 3, 1] [2023-01-28 12:01:05,508 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 12:01:05,508 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 12:01:05,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 12:01:05 BasicIcfg [2023-01-28 12:01:05,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 12:01:05,511 INFO L158 Benchmark]: Toolchain (without parser) took 824333.02ms. Allocated memory was 545.3MB in the beginning and 11.7GB in the end (delta: 11.1GB). Free memory was 496.8MB in the beginning and 6.1GB in the end (delta: -5.6GB). Peak memory consumption was 5.5GB. Max. memory is 16.0GB. [2023-01-28 12:01:05,511 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 364.9MB. Free memory is still 314.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 12:01:05,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.80ms. Allocated memory is still 545.3MB. Free memory was 496.4MB in the beginning and 485.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 12:01:05,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.58ms. Allocated memory is still 545.3MB. Free memory was 485.0MB in the beginning and 483.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 12:01:05,512 INFO L158 Benchmark]: Boogie Preprocessor took 22.24ms. Allocated memory is still 545.3MB. Free memory was 483.4MB in the beginning and 481.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 12:01:05,512 INFO L158 Benchmark]: RCFGBuilder took 624.20ms. Allocated memory is still 545.3MB. Free memory was 481.7MB in the beginning and 463.2MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-01-28 12:01:05,512 INFO L158 Benchmark]: TraceAbstraction took 823467.10ms. Allocated memory was 545.3MB in the beginning and 11.7GB in the end (delta: 11.1GB). Free memory was 462.5MB in the beginning and 6.1GB in the end (delta: -5.6GB). Peak memory consumption was 5.5GB. Max. memory is 16.0GB. [2023-01-28 12:01:05,513 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 364.9MB. Free memory is still 314.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 185.80ms. Allocated memory is still 545.3MB. Free memory was 496.4MB in the beginning and 485.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 28.58ms. Allocated memory is still 545.3MB. Free memory was 485.0MB in the beginning and 483.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.24ms. Allocated memory is still 545.3MB. Free memory was 483.4MB in the beginning and 481.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 624.20ms. Allocated memory is still 545.3MB. Free memory was 481.7MB in the beginning and 463.2MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 823467.10ms. Allocated memory was 545.3MB in the beginning and 11.7GB in the end (delta: 11.1GB). Free memory was 462.5MB in the beginning and 6.1GB in the end (delta: -5.6GB). Peak memory consumption was 5.5GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 100 PlacesBefore, 32 PlacesAfterwards, 98 TransitionsBefore, 25 TransitionsAfterwards, 1010 CoEnabledTransitionPairs, 6 FixpointIterations, 48 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 6 ConcurrentYvCompositions, 5 ChoiceCompositions, 84 TotalNumberOfCompositions, 1725 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1440, independent: 1399, independent conditional: 0, independent unconditional: 1399, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 531, independent: 522, independent conditional: 0, independent unconditional: 522, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1440, independent: 877, independent conditional: 0, independent unconditional: 877, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 531, unknown conditional: 0, unknown unconditional: 531] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 70/195 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 43766 conditions, 5138 events (3220/5137 cut-off events. For 180174/180174 co-relation queries the response was YES. Maximal size of possible extension queue 2098. Compared 40426 event pairs, 27 based on Foata normal form. 0/7233 useless extension candidates. Maximal degree in co-relation 43550. Up to 1149 conditions per place.). - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 70/195 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 43766 conditions, 5138 events (3220/5137 cut-off events. For 180174/180174 co-relation queries the response was YES. Maximal size of possible extension queue 2098. Compared 40426 event pairs, 27 based on Foata normal form. 0/7233 useless extension candidates. Maximal degree in co-relation 43550. Up to 1149 conditions per place.). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 70/195 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 43766 conditions, 5138 events (3220/5137 cut-off events. For 180174/180174 co-relation queries the response was YES. Maximal size of possible extension queue 2098. Compared 40426 event pairs, 27 based on Foata normal form. 0/7233 useless extension candidates. Maximal degree in co-relation 43550. Up to 1149 conditions per place.). - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 70/195 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 43766 conditions, 5138 events (3220/5137 cut-off events. For 180174/180174 co-relation queries the response was YES. Maximal size of possible extension queue 2098. Compared 40426 event pairs, 27 based on Foata normal form. 0/7233 useless extension candidates. Maximal degree in co-relation 43550. Up to 1149 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 129 locations, 4 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: 823.3s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 791.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 2717 SdHoareTripleChecker+Valid, 30.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2717 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 28.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 407 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11460 IncrementalHoareTripleChecker+Invalid, 11868 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 407 mSolverCounterUnsat, 21 mSDtfsCounter, 11460 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 808 GetRequests, 297 SyntacticMatches, 4 SemanticMatches, 507 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19034 ImplicationChecksByTransitivity, 166.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=262274occurred in iteration=10, InterpolantAutomatonStates: 393, 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: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 25.8s InterpolantComputationTime, 429 NumberOfCodeBlocks, 427 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 566 ConstructedInterpolants, 0 QuantifiedInterpolants, 19361 SizeOfPredicates, 73 NumberOfNonLiveVariables, 1409 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 26 InterpolantComputations, 5 PerfectInterpolantSequences, 12/55 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 could not prove your program: Timeout Completed graceful shutdown