/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 22:41:11,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 22:41:11,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 22:41:11,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 22:41:11,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 22:41:11,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 22:41:11,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 22:41:11,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 22:41:11,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 22:41:11,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 22:41:11,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 22:41:11,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 22:41:11,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 22:41:11,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 22:41:11,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 22:41:11,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 22:41:11,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 22:41:11,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 22:41:11,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 22:41:11,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 22:41:11,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 22:41:11,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 22:41:11,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 22:41:11,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 22:41:11,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 22:41:11,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 22:41:11,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 22:41:11,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 22:41:11,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 22:41:11,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 22:41:11,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 22:41:11,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 22:41:11,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 22:41:11,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 22:41:11,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 22:41:11,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 22:41:11,631 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 [2023-01-27 22:41:11,663 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 22:41:11,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 22:41:11,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 22:41:11,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 22:41:11,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 22:41:11,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 22:41:11,666 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 22:41:11,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 22:41:11,666 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 22:41:11,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 22:41:11,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 22:41:11,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 22:41:11,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 22:41:11,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 22:41:11,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 22:41:11,667 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 22:41:11,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 22:41:11,667 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 22:41:11,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 22:41:11,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 22:41:11,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 22:41:11,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 22:41:11,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 22:41:11,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 22:41:11,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 22:41:11,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 22:41:11,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 22:41:11,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 22:41:11,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 22:41:11,669 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 22:41:11,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 22:41:11,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 22:41:11,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 22:41:11,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 22:41:11,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 22:41:11,913 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 22:41:11,913 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 22:41:11,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c [2023-01-27 22:41:13,084 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 22:41:13,236 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 22:41:13,237 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c [2023-01-27 22:41:13,243 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e98a8dab/0555ea6340b04243a8fefdd73ff3564b/FLAG8c2e63dd1 [2023-01-27 22:41:13,259 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e98a8dab/0555ea6340b04243a8fefdd73ff3564b [2023-01-27 22:41:13,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 22:41:13,262 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 22:41:13,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 22:41:13,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 22:41:13,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 22:41:13,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bca87d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13, skipping insertion in model container [2023-01-27 22:41:13,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 22:41:13,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 22:41:13,419 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-prod-cons3.wvr.c[4007,4020] [2023-01-27 22:41:13,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 22:41:13,433 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 22:41:13,456 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-prod-cons3.wvr.c[4007,4020] [2023-01-27 22:41:13,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 22:41:13,466 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 22:41:13,466 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 22:41:13,471 INFO L208 MainTranslator]: Completed translation [2023-01-27 22:41:13,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13 WrapperNode [2023-01-27 22:41:13,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 22:41:13,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 22:41:13,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 22:41:13,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 22:41:13,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,504 INFO L138 Inliner]: procedures = 26, calls = 73, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 274 [2023-01-27 22:41:13,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 22:41:13,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 22:41:13,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 22:41:13,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 22:41:13,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,534 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 22:41:13,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 22:41:13,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 22:41:13,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 22:41:13,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (1/1) ... [2023-01-27 22:41:13,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 22:41:13,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:41:13,569 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) [2023-01-27 22:41:13,575 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 [2023-01-27 22:41:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 22:41:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 22:41:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 22:41:13,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 22:41:13,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-27 22:41:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-27 22:41:13,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-27 22:41:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-27 22:41:13,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-27 22:41:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-27 22:41:13,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-01-27 22:41:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-01-27 22:41:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 22:41:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 22:41:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 22:41:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 22:41:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 22:41:13,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 22:41:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 22:41:13,597 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 22:41:13,685 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 22:41:13,686 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 22:41:14,039 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 22:41:14,197 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 22:41:14,197 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-01-27 22:41:14,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 10:41:14 BoogieIcfgContainer [2023-01-27 22:41:14,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 22:41:14,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 22:41:14,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 22:41:14,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 22:41:14,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 10:41:13" (1/3) ... [2023-01-27 22:41:14,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e72b931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 10:41:14, skipping insertion in model container [2023-01-27 22:41:14,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:41:13" (2/3) ... [2023-01-27 22:41:14,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e72b931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 10:41:14, skipping insertion in model container [2023-01-27 22:41:14,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 10:41:14" (3/3) ... [2023-01-27 22:41:14,205 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons3.wvr.c [2023-01-27 22:41:14,219 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 22:41:14,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 22:41:14,219 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 22:41:14,277 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-27 22:41:14,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 227 transitions, 486 flow [2023-01-27 22:41:14,372 INFO L130 PetriNetUnfolder]: 18/223 cut-off events. [2023-01-27 22:41:14,372 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-27 22:41:14,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 223 events. 18/223 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 127 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 191. Up to 3 conditions per place. [2023-01-27 22:41:14,377 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 227 transitions, 486 flow [2023-01-27 22:41:14,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 206 places, 211 transitions, 446 flow [2023-01-27 22:41:14,384 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 22:41:14,392 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 211 transitions, 446 flow [2023-01-27 22:41:14,394 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 211 transitions, 446 flow [2023-01-27 22:41:14,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 211 transitions, 446 flow [2023-01-27 22:41:14,435 INFO L130 PetriNetUnfolder]: 18/211 cut-off events. [2023-01-27 22:41:14,435 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-27 22:41:14,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 211 events. 18/211 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 126 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 191. Up to 3 conditions per place. [2023-01-27 22:41:14,438 INFO L119 LiptonReduction]: Number of co-enabled transitions 2284 [2023-01-27 22:41:22,157 INFO L134 LiptonReduction]: Checked pairs total: 4694 [2023-01-27 22:41:22,158 INFO L136 LiptonReduction]: Total number of compositions: 211 [2023-01-27 22:41:22,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 22:41:22,176 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;@436e7ae5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 22:41:22,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-27 22:41:22,182 INFO L130 PetriNetUnfolder]: 5/35 cut-off events. [2023-01-27 22:41:22,182 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-27 22:41:22,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:41:22,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:41:22,183 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 2 more)] === [2023-01-27 22:41:22,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:41:22,187 INFO L85 PathProgramCache]: Analyzing trace with hash -685861163, now seen corresponding path program 1 times [2023-01-27 22:41:22,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:41:22,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056762483] [2023-01-27 22:41:22,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:41:22,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:41:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:41:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:41:22,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:41:22,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056762483] [2023-01-27 22:41:22,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056762483] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:41:22,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:41:22,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 22:41:22,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086311791] [2023-01-27 22:41:22,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:41:22,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 22:41:22,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:41:22,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 22:41:22,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-27 22:41:22,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 438 [2023-01-27 22:41:22,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 197.25) internal successors, (789), 4 states have internal predecessors, (789), 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) [2023-01-27 22:41:22,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:41:22,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 438 [2023-01-27 22:41:22,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:41:23,138 INFO L130 PetriNetUnfolder]: 1835/2622 cut-off events. [2023-01-27 22:41:23,138 INFO L131 PetriNetUnfolder]: For 205/205 co-relation queries the response was YES. [2023-01-27 22:41:23,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5331 conditions, 2622 events. 1835/2622 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 11831 event pairs, 180 based on Foata normal form. 0/2183 useless extension candidates. Maximal degree in co-relation 4539. Up to 845 conditions per place. [2023-01-27 22:41:23,157 INFO L137 encePairwiseOnDemand]: 433/438 looper letters, 76 selfloop transitions, 5 changer transitions 0/83 dead transitions. [2023-01-27 22:41:23,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 83 transitions, 373 flow [2023-01-27 22:41:23,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 22:41:23,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 22:41:23,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1038 transitions. [2023-01-27 22:41:23,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.473972602739726 [2023-01-27 22:41:23,177 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1038 transitions. [2023-01-27 22:41:23,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1038 transitions. [2023-01-27 22:41:23,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:41:23,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1038 transitions. [2023-01-27 22:41:23,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.6) internal successors, (1038), 5 states have internal predecessors, (1038), 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) [2023-01-27 22:41:23,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 438.0) internal successors, (2628), 6 states have internal predecessors, (2628), 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) [2023-01-27 22:41:23,196 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 438.0) internal successors, (2628), 6 states have internal predecessors, (2628), 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) [2023-01-27 22:41:23,197 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 96 flow. Second operand 5 states and 1038 transitions. [2023-01-27 22:41:23,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 83 transitions, 373 flow [2023-01-27 22:41:23,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 83 transitions, 340 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-01-27 22:41:23,205 INFO L231 Difference]: Finished difference. Result has 42 places, 39 transitions, 108 flow [2023-01-27 22:41:23,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=438, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=42, PETRI_TRANSITIONS=39} [2023-01-27 22:41:23,211 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -2 predicate places. [2023-01-27 22:41:23,211 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 108 flow [2023-01-27 22:41:23,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 197.25) internal successors, (789), 4 states have internal predecessors, (789), 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) [2023-01-27 22:41:23,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:41:23,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:41:23,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 22:41:23,213 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 2 more)] === [2023-01-27 22:41:23,216 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:41:23,216 INFO L85 PathProgramCache]: Analyzing trace with hash 528431825, now seen corresponding path program 2 times [2023-01-27 22:41:23,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:41:23,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893193134] [2023-01-27 22:41:23,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:41:23,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:41:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:41:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:41:23,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:41:23,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893193134] [2023-01-27 22:41:23,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893193134] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:41:23,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:41:23,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 22:41:23,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220175160] [2023-01-27 22:41:23,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:41:23,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 22:41:23,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:41:23,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 22:41:23,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-27 22:41:23,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 438 [2023-01-27 22:41:23,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 197.25) internal successors, (789), 4 states have internal predecessors, (789), 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) [2023-01-27 22:41:23,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:41:23,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 438 [2023-01-27 22:41:23,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:41:23,707 INFO L130 PetriNetUnfolder]: 2087/2900 cut-off events. [2023-01-27 22:41:23,707 INFO L131 PetriNetUnfolder]: For 929/929 co-relation queries the response was YES. [2023-01-27 22:41:23,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6645 conditions, 2900 events. 2087/2900 cut-off events. For 929/929 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 12872 event pairs, 198 based on Foata normal form. 0/2527 useless extension candidates. Maximal degree in co-relation 3849. Up to 1199 conditions per place. [2023-01-27 22:41:23,719 INFO L137 encePairwiseOnDemand]: 433/438 looper letters, 71 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2023-01-27 22:41:23,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 80 transitions, 375 flow [2023-01-27 22:41:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 22:41:23,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 22:41:23,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1031 transitions. [2023-01-27 22:41:23,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47077625570776255 [2023-01-27 22:41:23,722 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1031 transitions. [2023-01-27 22:41:23,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1031 transitions. [2023-01-27 22:41:23,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:41:23,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1031 transitions. [2023-01-27 22:41:23,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 206.2) internal successors, (1031), 5 states have internal predecessors, (1031), 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) [2023-01-27 22:41:23,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 438.0) internal successors, (2628), 6 states have internal predecessors, (2628), 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) [2023-01-27 22:41:23,729 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 438.0) internal successors, (2628), 6 states have internal predecessors, (2628), 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) [2023-01-27 22:41:23,729 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 108 flow. Second operand 5 states and 1031 transitions. [2023-01-27 22:41:23,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 80 transitions, 375 flow [2023-01-27 22:41:23,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 80 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 22:41:23,732 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 149 flow [2023-01-27 22:41:23,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=438, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=149, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2023-01-27 22:41:23,733 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 4 predicate places. [2023-01-27 22:41:23,733 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 149 flow [2023-01-27 22:41:23,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 197.25) internal successors, (789), 4 states have internal predecessors, (789), 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) [2023-01-27 22:41:23,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:41:23,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:41:23,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 22:41:23,734 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 2 more)] === [2023-01-27 22:41:23,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:41:23,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1985387241, now seen corresponding path program 3 times [2023-01-27 22:41:23,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:41:23,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32237317] [2023-01-27 22:41:23,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:41:23,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:41:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:41:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:41:24,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:41:24,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32237317] [2023-01-27 22:41:24,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32237317] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:41:24,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:41:24,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-27 22:41:24,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804155381] [2023-01-27 22:41:24,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:41:24,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 22:41:24,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:41:24,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 22:41:24,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-27 22:41:24,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 438 [2023-01-27 22:41:24,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 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) [2023-01-27 22:41:24,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:41:24,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 438 [2023-01-27 22:41:24,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:41:24,641 INFO L130 PetriNetUnfolder]: 4571/6362 cut-off events. [2023-01-27 22:41:24,641 INFO L131 PetriNetUnfolder]: For 3308/3308 co-relation queries the response was YES. [2023-01-27 22:41:24,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15630 conditions, 6362 events. 4571/6362 cut-off events. For 3308/3308 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 29277 event pairs, 339 based on Foata normal form. 164/6162 useless extension candidates. Maximal degree in co-relation 8501. Up to 2132 conditions per place. [2023-01-27 22:41:24,667 INFO L137 encePairwiseOnDemand]: 431/438 looper letters, 91 selfloop transitions, 7 changer transitions 21/119 dead transitions. [2023-01-27 22:41:24,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 119 transitions, 618 flow [2023-01-27 22:41:24,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 22:41:24,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 22:41:24,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1396 transitions. [2023-01-27 22:41:24,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4553163731245923 [2023-01-27 22:41:24,671 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1396 transitions. [2023-01-27 22:41:24,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1396 transitions. [2023-01-27 22:41:24,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:41:24,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1396 transitions. [2023-01-27 22:41:24,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 199.42857142857142) internal successors, (1396), 7 states have internal predecessors, (1396), 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) [2023-01-27 22:41:24,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 438.0) internal successors, (3504), 8 states have internal predecessors, (3504), 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) [2023-01-27 22:41:24,680 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 438.0) internal successors, (3504), 8 states have internal predecessors, (3504), 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) [2023-01-27 22:41:24,680 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 149 flow. Second operand 7 states and 1396 transitions. [2023-01-27 22:41:24,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 119 transitions, 618 flow [2023-01-27 22:41:24,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 119 transitions, 609 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 22:41:24,691 INFO L231 Difference]: Finished difference. Result has 55 places, 41 transitions, 156 flow [2023-01-27 22:41:24,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=438, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=156, PETRI_PLACES=55, PETRI_TRANSITIONS=41} [2023-01-27 22:41:24,692 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 11 predicate places. [2023-01-27 22:41:24,692 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 156 flow [2023-01-27 22:41:24,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 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) [2023-01-27 22:41:24,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:41:24,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:41:24,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 22:41:24,694 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 2 more)] === [2023-01-27 22:41:24,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:41:24,694 INFO L85 PathProgramCache]: Analyzing trace with hash 2073641848, now seen corresponding path program 1 times [2023-01-27 22:41:24,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:41:24,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203285480] [2023-01-27 22:41:24,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:41:24,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:41:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:41:24,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:41:24,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:41:24,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203285480] [2023-01-27 22:41:24,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203285480] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:41:24,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:41:24,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 22:41:24,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696173432] [2023-01-27 22:41:24,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:41:24,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 22:41:24,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:41:24,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 22:41:24,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 22:41:24,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 438 [2023-01-27 22:41:24,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2023-01-27 22:41:24,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:41:24,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 438 [2023-01-27 22:41:24,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:41:25,083 INFO L130 PetriNetUnfolder]: 1897/2812 cut-off events. [2023-01-27 22:41:25,083 INFO L131 PetriNetUnfolder]: For 3281/3281 co-relation queries the response was YES. [2023-01-27 22:41:25,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7253 conditions, 2812 events. 1897/2812 cut-off events. For 3281/3281 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 12993 event pairs, 492 based on Foata normal form. 54/2554 useless extension candidates. Maximal degree in co-relation 2968. Up to 2139 conditions per place. [2023-01-27 22:41:25,099 INFO L137 encePairwiseOnDemand]: 435/438 looper letters, 45 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2023-01-27 22:41:25,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 272 flow [2023-01-27 22:41:25,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 22:41:25,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 22:41:25,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 632 transitions. [2023-01-27 22:41:25,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4809741248097412 [2023-01-27 22:41:25,105 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 632 transitions. [2023-01-27 22:41:25,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 632 transitions. [2023-01-27 22:41:25,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:41:25,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 632 transitions. [2023-01-27 22:41:25,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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) [2023-01-27 22:41:25,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 438.0) internal successors, (1752), 4 states have internal predecessors, (1752), 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) [2023-01-27 22:41:25,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 438.0) internal successors, (1752), 4 states have internal predecessors, (1752), 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) [2023-01-27 22:41:25,110 INFO L175 Difference]: Start difference. First operand has 55 places, 41 transitions, 156 flow. Second operand 3 states and 632 transitions. [2023-01-27 22:41:25,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 272 flow [2023-01-27 22:41:25,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 52 transitions, 244 flow, removed 1 selfloop flow, removed 11 redundant places. [2023-01-27 22:41:25,117 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 130 flow [2023-01-27 22:41:25,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=438, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2023-01-27 22:41:25,118 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 3 predicate places. [2023-01-27 22:41:25,118 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 130 flow [2023-01-27 22:41:25,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2023-01-27 22:41:25,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:41:25,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:41:25,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 22:41:25,120 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 2 more)] === [2023-01-27 22:41:25,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:41:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1604329013, now seen corresponding path program 1 times [2023-01-27 22:41:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:41:25,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271023553] [2023-01-27 22:41:25,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:41:25,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:41:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:41:25,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 22:41:25,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:41:25,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271023553] [2023-01-27 22:41:25,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271023553] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:41:25,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:41:25,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 22:41:25,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073152469] [2023-01-27 22:41:25,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:41:25,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 22:41:25,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:41:25,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 22:41:25,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-27 22:41:25,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 438 [2023-01-27 22:41:25,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 184.25) internal successors, (737), 4 states have internal predecessors, (737), 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) [2023-01-27 22:41:25,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:41:25,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 438 [2023-01-27 22:41:25,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:41:25,551 INFO L130 PetriNetUnfolder]: 2162/3195 cut-off events. [2023-01-27 22:41:25,551 INFO L131 PetriNetUnfolder]: For 1894/1894 co-relation queries the response was YES. [2023-01-27 22:41:25,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8036 conditions, 3195 events. 2162/3195 cut-off events. For 1894/1894 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 15056 event pairs, 1534 based on Foata normal form. 44/2841 useless extension candidates. Maximal degree in co-relation 3779. Up to 2560 conditions per place. [2023-01-27 22:41:25,570 INFO L137 encePairwiseOnDemand]: 434/438 looper letters, 34 selfloop transitions, 2 changer transitions 17/58 dead transitions. [2023-01-27 22:41:25,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 281 flow [2023-01-27 22:41:25,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 22:41:25,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 22:41:25,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 760 transitions. [2023-01-27 22:41:25,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4337899543378995 [2023-01-27 22:41:25,572 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 760 transitions. [2023-01-27 22:41:25,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 760 transitions. [2023-01-27 22:41:25,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:41:25,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 760 transitions. [2023-01-27 22:41:25,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2023-01-27 22:41:25,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 438.0) internal successors, (2190), 5 states have internal predecessors, (2190), 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) [2023-01-27 22:41:25,577 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 438.0) internal successors, (2190), 5 states have internal predecessors, (2190), 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) [2023-01-27 22:41:25,577 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 130 flow. Second operand 4 states and 760 transitions. [2023-01-27 22:41:25,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 281 flow [2023-01-27 22:41:25,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 279 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 22:41:25,582 INFO L231 Difference]: Finished difference. Result has 51 places, 41 transitions, 142 flow [2023-01-27 22:41:25,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=438, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2023-01-27 22:41:25,583 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 7 predicate places. [2023-01-27 22:41:25,583 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 142 flow [2023-01-27 22:41:25,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 184.25) internal successors, (737), 4 states have internal predecessors, (737), 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) [2023-01-27 22:41:25,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:41:25,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:41:25,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 22:41:25,584 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 2 more)] === [2023-01-27 22:41:25,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:41:25,584 INFO L85 PathProgramCache]: Analyzing trace with hash 716362356, now seen corresponding path program 1 times [2023-01-27 22:41:25,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:41:25,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406667148] [2023-01-27 22:41:25,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:41:25,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:41:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:41:25,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 22:41:25,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:41:25,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406667148] [2023-01-27 22:41:25,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406667148] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:41:25,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:41:25,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 22:41:25,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668742087] [2023-01-27 22:41:25,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:41:25,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 22:41:25,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:41:25,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 22:41:25,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 22:41:25,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 438 [2023-01-27 22:41:25,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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) [2023-01-27 22:41:25,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:41:25,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 438 [2023-01-27 22:41:25,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:41:25,974 INFO L130 PetriNetUnfolder]: 1464/2239 cut-off events. [2023-01-27 22:41:25,975 INFO L131 PetriNetUnfolder]: For 1464/1464 co-relation queries the response was YES. [2023-01-27 22:41:25,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5761 conditions, 2239 events. 1464/2239 cut-off events. For 1464/1464 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 9852 event pairs, 683 based on Foata normal form. 34/2073 useless extension candidates. Maximal degree in co-relation 5738. Up to 1902 conditions per place. [2023-01-27 22:41:25,987 INFO L137 encePairwiseOnDemand]: 435/438 looper letters, 45 selfloop transitions, 2 changer transitions 3/55 dead transitions. [2023-01-27 22:41:25,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 55 transitions, 278 flow [2023-01-27 22:41:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 22:41:25,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 22:41:25,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2023-01-27 22:41:25,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4885844748858447 [2023-01-27 22:41:25,989 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 642 transitions. [2023-01-27 22:41:25,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 642 transitions. [2023-01-27 22:41:25,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:41:25,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 642 transitions. [2023-01-27 22:41:25,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 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) [2023-01-27 22:41:25,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 438.0) internal successors, (1752), 4 states have internal predecessors, (1752), 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) [2023-01-27 22:41:25,993 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 438.0) internal successors, (1752), 4 states have internal predecessors, (1752), 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) [2023-01-27 22:41:25,993 INFO L175 Difference]: Start difference. First operand has 51 places, 41 transitions, 142 flow. Second operand 3 states and 642 transitions. [2023-01-27 22:41:25,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 55 transitions, 278 flow [2023-01-27 22:41:25,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 55 transitions, 272 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-01-27 22:41:25,996 INFO L231 Difference]: Finished difference. Result has 51 places, 42 transitions, 148 flow [2023-01-27 22:41:25,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=438, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=51, PETRI_TRANSITIONS=42} [2023-01-27 22:41:25,997 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 7 predicate places. [2023-01-27 22:41:25,997 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 42 transitions, 148 flow [2023-01-27 22:41:25,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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) [2023-01-27 22:41:25,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:41:25,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:41:25,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 22:41:25,998 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 2 more)] === [2023-01-27 22:41:25,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:41:25,998 INFO L85 PathProgramCache]: Analyzing trace with hash -2092257775, now seen corresponding path program 1 times [2023-01-27 22:41:25,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:41:25,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087496405] [2023-01-27 22:41:25,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:41:25,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:41:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:41:26,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-27 22:41:26,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:41:26,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087496405] [2023-01-27 22:41:26,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087496405] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:41:26,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:41:26,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 22:41:26,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072593274] [2023-01-27 22:41:26,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:41:26,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 22:41:26,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:41:26,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 22:41:26,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-27 22:41:26,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 438 [2023-01-27 22:41:26,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 42 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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) [2023-01-27 22:41:26,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:41:26,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 438 [2023-01-27 22:41:26,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:41:26,425 INFO L130 PetriNetUnfolder]: 1572/2450 cut-off events. [2023-01-27 22:41:26,425 INFO L131 PetriNetUnfolder]: For 1768/1768 co-relation queries the response was YES. [2023-01-27 22:41:26,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6582 conditions, 2450 events. 1572/2450 cut-off events. For 1768/1768 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 10885 event pairs, 1205 based on Foata normal form. 22/2270 useless extension candidates. Maximal degree in co-relation 6152. Up to 2077 conditions per place. [2023-01-27 22:41:26,437 INFO L137 encePairwiseOnDemand]: 433/438 looper letters, 36 selfloop transitions, 2 changer transitions 18/61 dead transitions. [2023-01-27 22:41:26,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 61 transitions, 313 flow [2023-01-27 22:41:26,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 22:41:26,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 22:41:26,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 938 transitions. [2023-01-27 22:41:26,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.428310502283105 [2023-01-27 22:41:26,440 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 938 transitions. [2023-01-27 22:41:26,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 938 transitions. [2023-01-27 22:41:26,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:41:26,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 938 transitions. [2023-01-27 22:41:26,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 187.6) internal successors, (938), 5 states have internal predecessors, (938), 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) [2023-01-27 22:41:26,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 438.0) internal successors, (2628), 6 states have internal predecessors, (2628), 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) [2023-01-27 22:41:26,445 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 438.0) internal successors, (2628), 6 states have internal predecessors, (2628), 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) [2023-01-27 22:41:26,445 INFO L175 Difference]: Start difference. First operand has 51 places, 42 transitions, 148 flow. Second operand 5 states and 938 transitions. [2023-01-27 22:41:26,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 61 transitions, 313 flow [2023-01-27 22:41:26,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 61 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 22:41:26,449 INFO L231 Difference]: Finished difference. Result has 57 places, 43 transitions, 162 flow [2023-01-27 22:41:26,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=438, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=57, PETRI_TRANSITIONS=43} [2023-01-27 22:41:26,450 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 13 predicate places. [2023-01-27 22:41:26,450 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 43 transitions, 162 flow [2023-01-27 22:41:26,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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) [2023-01-27 22:41:26,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:41:26,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:41:26,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-27 22:41:26,451 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 2 more)] === [2023-01-27 22:41:26,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:41:26,451 INFO L85 PathProgramCache]: Analyzing trace with hash -645640744, now seen corresponding path program 1 times [2023-01-27 22:41:26,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:41:26,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931231474] [2023-01-27 22:41:26,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:41:26,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:41:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:41:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:41:28,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:41:28,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931231474] [2023-01-27 22:41:28,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931231474] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:41:28,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452611337] [2023-01-27 22:41:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:41:28,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:41:28,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:41:28,429 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) [2023-01-27 22:41:28,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-27 22:41:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:41:28,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 55 conjunts are in the unsatisfiable core [2023-01-27 22:41:28,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:41:29,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 22:41:29,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-01-27 22:41:29,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 22:41:29,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-01-27 22:41:29,595 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:41:29,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 28 [2023-01-27 22:41:29,745 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 22:41:29,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:41:30,386 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:41:30,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1987 treesize of output 1799 [2023-01-27 22:41:30,481 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:41:30,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 418 treesize of output 350 [2023-01-27 22:41:30,519 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:41:30,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 317 treesize of output 303 [2023-01-27 22:41:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 22:41:45,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452611337] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 22:41:45,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 22:41:45,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 45 [2023-01-27 22:41:45,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779948496] [2023-01-27 22:41:45,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 22:41:45,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-01-27 22:41:45,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:41:45,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-01-27 22:41:45,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1881, Unknown=5, NotChecked=0, Total=2070 [2023-01-27 22:41:45,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 438 [2023-01-27 22:41:45,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 43 transitions, 162 flow. Second operand has 46 states, 46 states have (on average 118.0) internal successors, (5428), 46 states have internal predecessors, (5428), 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) [2023-01-27 22:41:45,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:41:45,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 438 [2023-01-27 22:41:45,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:41:55,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-27 22:42:11,712 WARN L222 SmtUtils]: Spent 10.85s on a formula simplification. DAG size of input: 117 DAG size of output: 77 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:42:27,209 WARN L222 SmtUtils]: Spent 9.30s on a formula simplification. DAG size of input: 84 DAG size of output: 66 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:42:38,286 WARN L222 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 63 DAG size of output: 60 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:42:53,983 WARN L222 SmtUtils]: Spent 14.45s on a formula simplification. DAG size of input: 115 DAG size of output: 86 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:43:01,809 WARN L222 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 99 DAG size of output: 66 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:43:19,877 WARN L222 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 104 DAG size of output: 76 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:43:31,179 WARN L222 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 82 DAG size of output: 76 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:43:40,102 WARN L222 SmtUtils]: Spent 8.45s on a formula simplification. DAG size of input: 119 DAG size of output: 79 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:43:49,364 WARN L222 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 108 DAG size of output: 68 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:44:09,182 WARN L222 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 97 DAG size of output: 64 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:44:33,401 WARN L222 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 117 DAG size of output: 94 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:44:50,222 WARN L222 SmtUtils]: Spent 12.25s on a formula simplification. DAG size of input: 106 DAG size of output: 85 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:44:59,144 WARN L222 SmtUtils]: Spent 8.41s on a formula simplification. DAG size of input: 99 DAG size of output: 66 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:45:13,532 WARN L222 SmtUtils]: Spent 9.12s on a formula simplification. DAG size of input: 108 DAG size of output: 85 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:45:23,043 WARN L222 SmtUtils]: Spent 9.28s on a formula simplification. DAG size of input: 84 DAG size of output: 66 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:45:38,938 WARN L222 SmtUtils]: Spent 8.17s on a formula simplification. DAG size of input: 63 DAG size of output: 60 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:45:55,284 WARN L222 SmtUtils]: Spent 6.18s on a formula simplification. DAG size of input: 68 DAG size of output: 64 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:45:57,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-27 22:46:11,399 WARN L222 SmtUtils]: Spent 8.34s on a formula simplification. DAG size of input: 101 DAG size of output: 66 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:46:30,986 WARN L222 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 65 DAG size of output: 62 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 22:46:47,799 INFO L130 PetriNetUnfolder]: 27232/38833 cut-off events. [2023-01-27 22:46:47,800 INFO L131 PetriNetUnfolder]: For 29822/29822 co-relation queries the response was YES. [2023-01-27 22:46:47,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108558 conditions, 38833 events. 27232/38833 cut-off events. For 29822/29822 co-relation queries the response was YES. Maximal size of possible extension queue 993. Compared 234810 event pairs, 534 based on Foata normal form. 759/37092 useless extension candidates. Maximal degree in co-relation 108535. Up to 6297 conditions per place. [2023-01-27 22:46:48,026 INFO L137 encePairwiseOnDemand]: 411/438 looper letters, 1681 selfloop transitions, 968 changer transitions 311/2960 dead transitions. [2023-01-27 22:46:48,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 2960 transitions, 15310 flow [2023-01-27 22:46:48,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 297 states. [2023-01-27 22:46:48,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2023-01-27 22:46:48,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 37355 transitions. [2023-01-27 22:46:48,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.287156188982673 [2023-01-27 22:46:48,112 INFO L72 ComplementDD]: Start complementDD. Operand 297 states and 37355 transitions. [2023-01-27 22:46:48,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 297 states and 37355 transitions. [2023-01-27 22:46:48,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:46:48,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 297 states and 37355 transitions. [2023-01-27 22:46:48,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 298 states, 297 states have (on average 125.77441077441077) internal successors, (37355), 297 states have internal predecessors, (37355), 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) [2023-01-27 22:46:48,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 298 states, 298 states have (on average 438.0) internal successors, (130524), 298 states have internal predecessors, (130524), 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) [2023-01-27 22:46:48,389 INFO L81 ComplementDD]: Finished complementDD. Result has 298 states, 298 states have (on average 438.0) internal successors, (130524), 298 states have internal predecessors, (130524), 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) [2023-01-27 22:46:48,389 INFO L175 Difference]: Start difference. First operand has 57 places, 43 transitions, 162 flow. Second operand 297 states and 37355 transitions. [2023-01-27 22:46:48,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 2960 transitions, 15310 flow [2023-01-27 22:46:48,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 2960 transitions, 15290 flow, removed 9 selfloop flow, removed 3 redundant places. [2023-01-27 22:46:48,488 INFO L231 Difference]: Finished difference. Result has 443 places, 1226 transitions, 7734 flow [2023-01-27 22:46:48,488 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=438, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=297, PETRI_FLOW=7734, PETRI_PLACES=443, PETRI_TRANSITIONS=1226} [2023-01-27 22:46:48,491 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 399 predicate places. [2023-01-27 22:46:48,491 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 1226 transitions, 7734 flow [2023-01-27 22:46:48,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 118.0) internal successors, (5428), 46 states have internal predecessors, (5428), 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) [2023-01-27 22:46:48,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:46:48,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:46:48,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-27 22:46:48,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:46:48,700 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 2 more)] === [2023-01-27 22:46:48,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:46:48,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1127794134, now seen corresponding path program 2 times [2023-01-27 22:46:48,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:46:48,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352876571] [2023-01-27 22:46:48,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:46:48,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:46:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:46:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:46:50,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:46:50,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352876571] [2023-01-27 22:46:50,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352876571] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:46:50,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667889600] [2023-01-27 22:46:50,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 22:46:50,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:46:50,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:46:50,829 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) [2023-01-27 22:46:50,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-27 22:46:51,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 22:46:51,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 22:46:51,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 61 conjunts are in the unsatisfiable core [2023-01-27 22:46:51,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:46:51,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-01-27 22:46:51,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-27 22:46:51,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-27 22:46:51,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-27 22:46:52,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 22:46:52,464 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2023-01-27 22:46:52,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 36 [2023-01-27 22:46:52,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-01-27 22:46:52,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2023-01-27 22:46:52,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:46:52,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:46:53,029 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_358 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_358) c_~queue2~0.base) (+ c_~queue2~0.offset (* c_~front2~0 4))) c_~d2~0) (+ (* c_~W~0 2) 1))) is different from false [2023-01-27 22:46:54,417 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:46:54,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 98 [2023-01-27 22:46:54,477 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:46:54,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2229 treesize of output 2177 [2023-01-27 22:46:54,589 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:46:54,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2085 treesize of output 1733 [2023-01-27 22:46:54,692 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:46:54,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1653 treesize of output 1517 [2023-01-27 22:46:54,842 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:46:54,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1298 treesize of output 1270 [2023-01-27 22:46:54,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 230 [2023-01-27 22:54:27,644 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:54:27,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667889600] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 22:54:27,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 22:54:27,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18, 18] total 49 [2023-01-27 22:54:27,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444097589] [2023-01-27 22:54:27,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 22:54:27,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-01-27 22:54:27,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:54:27,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-01-27 22:54:27,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=2137, Unknown=11, NotChecked=94, Total=2450 [2023-01-27 22:54:27,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 438 [2023-01-27 22:54:27,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 1226 transitions, 7734 flow. Second operand has 50 states, 50 states have (on average 110.84) internal successors, (5542), 50 states have internal predecessors, (5542), 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) [2023-01-27 22:54:27,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:54:27,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 438 [2023-01-27 22:54:27,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-01-27 22:54:53,144 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 [2023-01-27 22:54:53,144 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 22:54:54,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-27 22:54:54,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-27 22:54:54,164 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-27 22:54:54,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-27 22:54:54,164 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-01-27 22:54:54,165 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-01-27 22:54:54,166 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-27 22:54:54,166 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-27 22:54:54,166 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-01-27 22:54:54,166 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2023-01-27 22:54:54,168 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 22:54:54,168 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 22:54:54,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 10:54:54 BasicIcfg [2023-01-27 22:54:54,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 22:54:54,171 INFO L158 Benchmark]: Toolchain (without parser) took 820909.10ms. Allocated memory was 360.7MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 319.9MB in the beginning and 1.2GB in the end (delta: -895.4MB). Peak memory consumption was 311.0MB. Max. memory is 16.0GB. [2023-01-27 22:54:54,171 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 22:54:54,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.16ms. Allocated memory is still 360.7MB. Free memory was 319.5MB in the beginning and 307.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 22:54:54,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.67ms. Allocated memory is still 360.7MB. Free memory was 307.3MB in the beginning and 304.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 22:54:54,171 INFO L158 Benchmark]: Boogie Preprocessor took 32.75ms. Allocated memory is still 360.7MB. Free memory was 304.9MB in the beginning and 302.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 22:54:54,172 INFO L158 Benchmark]: RCFGBuilder took 660.54ms. Allocated memory is still 360.7MB. Free memory was 302.7MB in the beginning and 332.8MB in the end (delta: -30.0MB). Peak memory consumption was 35.6MB. Max. memory is 16.0GB. [2023-01-27 22:54:54,172 INFO L158 Benchmark]: TraceAbstraction took 819969.59ms. Allocated memory was 360.7MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 332.0MB in the beginning and 1.2GB in the end (delta: -883.3MB). Peak memory consumption was 321.5MB. Max. memory is 16.0GB. [2023-01-27 22:54:54,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 209.16ms. Allocated memory is still 360.7MB. Free memory was 319.5MB in the beginning and 307.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.67ms. Allocated memory is still 360.7MB. Free memory was 307.3MB in the beginning and 304.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.75ms. Allocated memory is still 360.7MB. Free memory was 304.9MB in the beginning and 302.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 660.54ms. Allocated memory is still 360.7MB. Free memory was 302.7MB in the beginning and 332.8MB in the end (delta: -30.0MB). Peak memory consumption was 35.6MB. Max. memory is 16.0GB. * TraceAbstraction took 819969.59ms. Allocated memory was 360.7MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 332.0MB in the beginning and 1.2GB in the end (delta: -883.3MB). Peak memory consumption was 321.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8s, 206 PlacesBefore, 44 PlacesAfterwards, 211 TransitionsBefore, 36 TransitionsAfterwards, 2284 CoEnabledTransitionPairs, 8 FixpointIterations, 125 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 8 ConcurrentYvCompositions, 13 ChoiceCompositions, 211 TotalNumberOfCompositions, 4694 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3237, independent: 3115, independent conditional: 0, independent unconditional: 3115, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1268, independent: 1244, independent conditional: 0, independent unconditional: 1244, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3237, independent: 1871, independent conditional: 0, independent unconditional: 1871, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 1268, unknown conditional: 0, unknown unconditional: 1268] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 133, Positive conditional cache size: 0, Positive unconditional cache size: 133, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 150]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 143]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 140]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 248 locations, 5 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: 819.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 331.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.9s, HoareTripleCheckerStatistics: 1608 mSolverCounterUnknown, 3086 SdHoareTripleChecker+Valid, 33.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3086 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 32.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 499 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 418 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17106 IncrementalHoareTripleChecker+Invalid, 19632 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 418 mSolverCounterUnsat, 0 mSDtfsCounter, 17106 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1608 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 600 GetRequests, 88 SyntacticMatches, 7 SemanticMatches, 505 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 48285 ImplicationChecksByTransitivity, 295.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7734occurred in iteration=8, InterpolantAutomatonStates: 329, 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, 0.7s SatisfiabilityAnalysisTime, 478.9s InterpolantComputationTime, 351 NumberOfCodeBlocks, 351 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 410 ConstructedInterpolants, 32 QuantifiedInterpolants, 6219 SizeOfPredicates, 69 NumberOfNonLiveVariables, 730 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 18/40 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