/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/chl-match-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 20:14:04,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 20:14:04,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 20:14:04,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 20:14:04,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 20:14:04,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 20:14:04,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 20:14:04,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 20:14:04,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 20:14:04,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 20:14:04,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 20:14:04,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 20:14:04,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 20:14:04,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 20:14:04,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 20:14:04,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 20:14:04,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 20:14:04,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 20:14:04,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 20:14:04,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 20:14:04,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 20:14:04,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 20:14:04,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 20:14:04,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 20:14:04,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 20:14:04,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 20:14:04,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 20:14:04,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 20:14:04,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 20:14:04,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 20:14:04,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 20:14:04,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 20:14:04,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 20:14:04,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 20:14:04,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 20:14:04,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 20:14:04,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 20:14:04,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 20:14:04,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 20:14:04,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 20:14:04,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 20:14:04,828 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 20:14:04,849 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 20:14:04,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 20:14:04,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 20:14:04,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 20:14:04,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 20:14:04,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 20:14:04,852 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 20:14:04,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 20:14:04,852 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 20:14:04,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 20:14:04,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 20:14:04,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 20:14:04,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 20:14:04,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 20:14:04,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 20:14:04,853 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 20:14:04,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 20:14:04,853 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 20:14:04,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 20:14:04,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 20:14:04,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 20:14:04,854 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 20:14:04,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 20:14:04,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 20:14:04,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 20:14:04,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 20:14:04,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 20:14:04,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 20:14:04,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 20:14:04,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 20:14:04,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 20:14:04,855 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 20:14:05,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 20:14:05,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 20:14:05,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 20:14:05,066 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 20:14:05,066 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 20:14:05,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2023-01-27 20:14:06,353 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 20:14:06,492 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 20:14:06,492 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2023-01-27 20:14:06,497 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1080769dc/e529a86920894aa8b8e5c685db0959fe/FLAGbdbd49799 [2023-01-27 20:14:06,506 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1080769dc/e529a86920894aa8b8e5c685db0959fe [2023-01-27 20:14:06,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 20:14:06,508 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 20:14:06,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 20:14:06,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 20:14:06,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 20:14:06,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63c47de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06, skipping insertion in model container [2023-01-27 20:14:06,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 20:14:06,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 20:14:06,640 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/chl-match-trans.wvr.c[2954,2967] [2023-01-27 20:14:06,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 20:14:06,651 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 20:14:06,666 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/chl-match-trans.wvr.c[2954,2967] [2023-01-27 20:14:06,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 20:14:06,677 INFO L208 MainTranslator]: Completed translation [2023-01-27 20:14:06,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06 WrapperNode [2023-01-27 20:14:06,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 20:14:06,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 20:14:06,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 20:14:06,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 20:14:06,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,711 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 211 [2023-01-27 20:14:06,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 20:14:06,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 20:14:06,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 20:14:06,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 20:14:06,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,727 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 20:14:06,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 20:14:06,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 20:14:06,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 20:14:06,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (1/1) ... [2023-01-27 20:14:06,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 20:14:06,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 20:14:06,767 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 20:14:06,769 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 20:14:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 20:14:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-27 20:14:06,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-27 20:14:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-27 20:14:06,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-27 20:14:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-27 20:14:06,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-27 20:14:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 20:14:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 20:14:06,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 20:14:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 20:14:06,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 20:14:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 20:14:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 20:14:06,827 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 20:14:06,898 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 20:14:06,899 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 20:14:07,184 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 20:14:07,230 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 20:14:07,231 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 20:14:07,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 08:14:07 BoogieIcfgContainer [2023-01-27 20:14:07,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 20:14:07,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 20:14:07,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 20:14:07,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 20:14:07,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 08:14:06" (1/3) ... [2023-01-27 20:14:07,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a84fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 08:14:07, skipping insertion in model container [2023-01-27 20:14:07,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 08:14:06" (2/3) ... [2023-01-27 20:14:07,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a84fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 08:14:07, skipping insertion in model container [2023-01-27 20:14:07,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 08:14:07" (3/3) ... [2023-01-27 20:14:07,238 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2023-01-27 20:14:07,250 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 20:14:07,250 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 20:14:07,250 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 20:14:07,330 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-27 20:14:07,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 249 transitions, 522 flow [2023-01-27 20:14:07,468 INFO L130 PetriNetUnfolder]: 13/246 cut-off events. [2023-01-27 20:14:07,469 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 20:14:07,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 246 events. 13/246 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 334 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 173. Up to 2 conditions per place. [2023-01-27 20:14:07,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 249 transitions, 522 flow [2023-01-27 20:14:07,493 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 236 transitions, 490 flow [2023-01-27 20:14:07,500 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 20:14:07,514 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 236 transitions, 490 flow [2023-01-27 20:14:07,521 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 236 transitions, 490 flow [2023-01-27 20:14:07,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 236 transitions, 490 flow [2023-01-27 20:14:07,564 INFO L130 PetriNetUnfolder]: 13/236 cut-off events. [2023-01-27 20:14:07,565 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 20:14:07,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 236 events. 13/236 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 333 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 173. Up to 2 conditions per place. [2023-01-27 20:14:07,575 INFO L119 LiptonReduction]: Number of co-enabled transitions 16638 [2023-01-27 20:14:13,328 INFO L134 LiptonReduction]: Checked pairs total: 14490 [2023-01-27 20:14:13,328 INFO L136 LiptonReduction]: Total number of compositions: 272 [2023-01-27 20:14:13,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 20:14:13,350 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;@1249d4cb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 20:14:13,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-27 20:14:13,355 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-01-27 20:14:13,355 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 20:14:13,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:14:13,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:14:13,357 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:14:13,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:14:13,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1045420437, now seen corresponding path program 1 times [2023-01-27 20:14:13,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:14:13,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503983234] [2023-01-27 20:14:13,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:14:13,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:14:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:14:14,111 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 20:14:14,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:14:14,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503983234] [2023-01-27 20:14:14,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503983234] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:14:14,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:14:14,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:14:14,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183735358] [2023-01-27 20:14:14,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:14:14,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:14:14,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:14:14,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:14:14,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:14:14,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 521 [2023-01-27 20:14:14,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:14,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:14:14,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 521 [2023-01-27 20:14:14,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:14:14,319 INFO L130 PetriNetUnfolder]: 38/100 cut-off events. [2023-01-27 20:14:14,319 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2023-01-27 20:14:14,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 100 events. 38/100 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 292 event pairs, 3 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 169. Up to 32 conditions per place. [2023-01-27 20:14:14,322 INFO L137 encePairwiseOnDemand]: 516/521 looper letters, 32 selfloop transitions, 5 changer transitions 7/44 dead transitions. [2023-01-27 20:14:14,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 44 transitions, 224 flow [2023-01-27 20:14:14,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 20:14:14,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 20:14:14,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1233 transitions. [2023-01-27 20:14:14,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3944337811900192 [2023-01-27 20:14:14,340 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1233 transitions. [2023-01-27 20:14:14,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1233 transitions. [2023-01-27 20:14:14,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:14:14,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1233 transitions. [2023-01-27 20:14:14,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.5) internal successors, (1233), 6 states have internal predecessors, (1233), 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 20:14:14,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 521.0) internal successors, (3647), 7 states have internal predecessors, (3647), 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 20:14:14,356 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 521.0) internal successors, (3647), 7 states have internal predecessors, (3647), 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 20:14:14,357 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 6 states and 1233 transitions. [2023-01-27 20:14:14,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 44 transitions, 224 flow [2023-01-27 20:14:14,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 44 transitions, 192 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-27 20:14:14,361 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 57 flow [2023-01-27 20:14:14,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=521, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=57, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-01-27 20:14:14,366 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 1 predicate places. [2023-01-27 20:14:14,366 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 57 flow [2023-01-27 20:14:14,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:14,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:14:14,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:14:14,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 20:14:14,368 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:14:14,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:14:14,368 INFO L85 PathProgramCache]: Analyzing trace with hash 929829681, now seen corresponding path program 2 times [2023-01-27 20:14:14,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:14:14,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398013021] [2023-01-27 20:14:14,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:14:14,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:14:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:14:14,753 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 20:14:14,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:14:14,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398013021] [2023-01-27 20:14:14,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398013021] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:14:14,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:14:14,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:14:14,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581689092] [2023-01-27 20:14:14,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:14:14,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:14:14,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:14:14,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:14:14,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:14:14,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 521 [2023-01-27 20:14:14,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:14,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:14:14,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 521 [2023-01-27 20:14:14,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:14:14,915 INFO L130 PetriNetUnfolder]: 39/109 cut-off events. [2023-01-27 20:14:14,916 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-01-27 20:14:14,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 109 events. 39/109 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 350 event pairs, 2 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 273. Up to 42 conditions per place. [2023-01-27 20:14:14,917 INFO L137 encePairwiseOnDemand]: 516/521 looper letters, 32 selfloop transitions, 6 changer transitions 11/49 dead transitions. [2023-01-27 20:14:14,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 49 transitions, 243 flow [2023-01-27 20:14:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 20:14:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 20:14:14,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1236 transitions. [2023-01-27 20:14:14,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39539347408829173 [2023-01-27 20:14:14,919 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1236 transitions. [2023-01-27 20:14:14,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1236 transitions. [2023-01-27 20:14:14,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:14:14,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1236 transitions. [2023-01-27 20:14:14,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 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 20:14:14,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 521.0) internal successors, (3647), 7 states have internal predecessors, (3647), 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 20:14:14,927 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 521.0) internal successors, (3647), 7 states have internal predecessors, (3647), 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 20:14:14,927 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 57 flow. Second operand 6 states and 1236 transitions. [2023-01-27 20:14:14,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 49 transitions, 243 flow [2023-01-27 20:14:14,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 49 transitions, 239 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-01-27 20:14:14,929 INFO L231 Difference]: Finished difference. Result has 33 places, 20 transitions, 86 flow [2023-01-27 20:14:14,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=521, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=86, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2023-01-27 20:14:14,930 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-01-27 20:14:14,930 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 86 flow [2023-01-27 20:14:14,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:14,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:14:14,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:14:14,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 20:14:14,931 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:14:14,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:14:14,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1723380999, now seen corresponding path program 3 times [2023-01-27 20:14:14,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:14:14,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201352224] [2023-01-27 20:14:14,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:14:14,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:14:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:14:15,199 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 20:14:15,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:14:15,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201352224] [2023-01-27 20:14:15,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201352224] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:14:15,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:14:15,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:14:15,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442268323] [2023-01-27 20:14:15,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:14:15,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:14:15,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:14:15,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:14:15,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:14:15,202 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 521 [2023-01-27 20:14:15,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:15,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:14:15,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 521 [2023-01-27 20:14:15,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:14:15,341 INFO L130 PetriNetUnfolder]: 30/90 cut-off events. [2023-01-27 20:14:15,341 INFO L131 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2023-01-27 20:14:15,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 90 events. 30/90 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 258 event pairs, 7 based on Foata normal form. 1/91 useless extension candidates. Maximal degree in co-relation 277. Up to 37 conditions per place. [2023-01-27 20:14:15,342 INFO L137 encePairwiseOnDemand]: 516/521 looper letters, 26 selfloop transitions, 8 changer transitions 5/39 dead transitions. [2023-01-27 20:14:15,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 222 flow [2023-01-27 20:14:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 20:14:15,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 20:14:15,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1028 transitions. [2023-01-27 20:14:15,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3946257197696737 [2023-01-27 20:14:15,346 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1028 transitions. [2023-01-27 20:14:15,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1028 transitions. [2023-01-27 20:14:15,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:14:15,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1028 transitions. [2023-01-27 20:14:15,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 205.6) internal successors, (1028), 5 states have internal predecessors, (1028), 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 20:14:15,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 521.0) internal successors, (3126), 6 states have internal predecessors, (3126), 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 20:14:15,352 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 521.0) internal successors, (3126), 6 states have internal predecessors, (3126), 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 20:14:15,353 INFO L175 Difference]: Start difference. First operand has 33 places, 20 transitions, 86 flow. Second operand 5 states and 1028 transitions. [2023-01-27 20:14:15,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 222 flow [2023-01-27 20:14:15,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 206 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-01-27 20:14:15,355 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 117 flow [2023-01-27 20:14:15,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=521, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=117, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2023-01-27 20:14:15,356 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2023-01-27 20:14:15,358 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 117 flow [2023-01-27 20:14:15,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:15,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:14:15,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:14:15,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 20:14:15,359 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:14:15,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:14:15,360 INFO L85 PathProgramCache]: Analyzing trace with hash 541492063, now seen corresponding path program 4 times [2023-01-27 20:14:15,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:14:15,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668018434] [2023-01-27 20:14:15,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:14:15,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:14:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:14:15,697 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 20:14:15,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:14:15,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668018434] [2023-01-27 20:14:15,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668018434] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:14:15,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:14:15,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:14:15,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575067145] [2023-01-27 20:14:15,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:14:15,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:14:15,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:14:15,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:14:15,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:14:15,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 521 [2023-01-27 20:14:15,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:15,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:14:15,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 521 [2023-01-27 20:14:15,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:14:15,804 INFO L130 PetriNetUnfolder]: 30/89 cut-off events. [2023-01-27 20:14:15,804 INFO L131 PetriNetUnfolder]: For 149/149 co-relation queries the response was YES. [2023-01-27 20:14:15,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 89 events. 30/89 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 263 event pairs, 5 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 101. Up to 33 conditions per place. [2023-01-27 20:14:15,804 INFO L137 encePairwiseOnDemand]: 516/521 looper letters, 17 selfloop transitions, 6 changer transitions 19/42 dead transitions. [2023-01-27 20:14:15,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 261 flow [2023-01-27 20:14:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 20:14:15,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 20:14:15,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1029 transitions. [2023-01-27 20:14:15,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39500959692898274 [2023-01-27 20:14:15,807 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1029 transitions. [2023-01-27 20:14:15,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1029 transitions. [2023-01-27 20:14:15,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:14:15,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1029 transitions. [2023-01-27 20:14:15,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 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 20:14:15,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 521.0) internal successors, (3126), 6 states have internal predecessors, (3126), 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 20:14:15,812 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 521.0) internal successors, (3126), 6 states have internal predecessors, (3126), 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 20:14:15,812 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 117 flow. Second operand 5 states and 1029 transitions. [2023-01-27 20:14:15,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 261 flow [2023-01-27 20:14:15,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 20:14:15,814 INFO L231 Difference]: Finished difference. Result has 39 places, 19 transitions, 112 flow [2023-01-27 20:14:15,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=521, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=112, PETRI_PLACES=39, PETRI_TRANSITIONS=19} [2023-01-27 20:14:15,814 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2023-01-27 20:14:15,815 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 19 transitions, 112 flow [2023-01-27 20:14:15,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:15,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:14:15,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:14:15,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 20:14:15,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:14:15,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:14:15,816 INFO L85 PathProgramCache]: Analyzing trace with hash -769761031, now seen corresponding path program 5 times [2023-01-27 20:14:15,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:14:15,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971570971] [2023-01-27 20:14:15,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:14:15,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:14:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:14:16,121 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 20:14:16,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:14:16,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971570971] [2023-01-27 20:14:16,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971570971] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:14:16,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:14:16,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:14:16,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131798420] [2023-01-27 20:14:16,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:14:16,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:14:16,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:14:16,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:14:16,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:14:16,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 521 [2023-01-27 20:14:16,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 19 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:16,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:14:16,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 521 [2023-01-27 20:14:16,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:14:16,221 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2023-01-27 20:14:16,221 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2023-01-27 20:14:16,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 40 events. 8/40 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 91. Up to 19 conditions per place. [2023-01-27 20:14:16,221 INFO L137 encePairwiseOnDemand]: 516/521 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2023-01-27 20:14:16,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 198 flow [2023-01-27 20:14:16,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 20:14:16,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 20:14:16,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1219 transitions. [2023-01-27 20:14:16,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38995521433141395 [2023-01-27 20:14:16,224 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1219 transitions. [2023-01-27 20:14:16,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1219 transitions. [2023-01-27 20:14:16,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:14:16,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1219 transitions. [2023-01-27 20:14:16,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.16666666666666) internal successors, (1219), 6 states have internal predecessors, (1219), 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 20:14:16,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 521.0) internal successors, (3647), 7 states have internal predecessors, (3647), 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 20:14:16,229 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 521.0) internal successors, (3647), 7 states have internal predecessors, (3647), 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 20:14:16,229 INFO L175 Difference]: Start difference. First operand has 39 places, 19 transitions, 112 flow. Second operand 6 states and 1219 transitions. [2023-01-27 20:14:16,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 198 flow [2023-01-27 20:14:16,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 149 flow, removed 3 selfloop flow, removed 12 redundant places. [2023-01-27 20:14:16,231 INFO L231 Difference]: Finished difference. Result has 33 places, 16 transitions, 57 flow [2023-01-27 20:14:16,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=521, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=57, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2023-01-27 20:14:16,231 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-01-27 20:14:16,231 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 57 flow [2023-01-27 20:14:16,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:16,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 20:14:16,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 20:14:16,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 20:14:16,232 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 20:14:16,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 20:14:16,233 INFO L85 PathProgramCache]: Analyzing trace with hash 163140025, now seen corresponding path program 6 times [2023-01-27 20:14:16,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 20:14:16,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337279336] [2023-01-27 20:14:16,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 20:14:16,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 20:14:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 20:14:16,493 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 20:14:16,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 20:14:16,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337279336] [2023-01-27 20:14:16,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337279336] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 20:14:16,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 20:14:16,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 20:14:16,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834157569] [2023-01-27 20:14:16,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 20:14:16,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 20:14:16,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 20:14:16,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 20:14:16,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 20:14:16,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 521 [2023-01-27 20:14:16,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:16,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 20:14:16,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 521 [2023-01-27 20:14:16,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 20:14:16,565 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2023-01-27 20:14:16,565 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-27 20:14:16,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 21 events. 3/21 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 64. Up to 8 conditions per place. [2023-01-27 20:14:16,565 INFO L137 encePairwiseOnDemand]: 516/521 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-01-27 20:14:16,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 18 transitions, 95 flow [2023-01-27 20:14:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 20:14:16,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 20:14:16,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1207 transitions. [2023-01-27 20:14:16,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38611644273832374 [2023-01-27 20:14:16,568 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1207 transitions. [2023-01-27 20:14:16,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1207 transitions. [2023-01-27 20:14:16,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 20:14:16,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1207 transitions. [2023-01-27 20:14:16,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.16666666666666) internal successors, (1207), 6 states have internal predecessors, (1207), 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 20:14:16,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 521.0) internal successors, (3647), 7 states have internal predecessors, (3647), 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 20:14:16,574 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 521.0) internal successors, (3647), 7 states have internal predecessors, (3647), 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 20:14:16,574 INFO L175 Difference]: Start difference. First operand has 33 places, 16 transitions, 57 flow. Second operand 6 states and 1207 transitions. [2023-01-27 20:14:16,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 18 transitions, 95 flow [2023-01-27 20:14:16,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 79 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-01-27 20:14:16,575 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-01-27 20:14:16,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=521, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-01-27 20:14:16,576 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2023-01-27 20:14:16,576 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-01-27 20:14:16,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.2) internal successors, (1006), 5 states have internal predecessors, (1006), 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 20:14:16,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-27 20:14:16,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-27 20:14:16,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-27 20:14:16,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-27 20:14:16,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 20:14:16,579 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2023-01-27 20:14:16,581 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 20:14:16,581 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 20:14:16,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 08:14:16 BasicIcfg [2023-01-27 20:14:16,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 20:14:16,584 INFO L158 Benchmark]: Toolchain (without parser) took 10075.56ms. Allocated memory was 518.0MB in the beginning and 629.1MB in the end (delta: 111.1MB). Free memory was 467.4MB in the beginning and 445.7MB in the end (delta: 21.7MB). Peak memory consumption was 135.9MB. Max. memory is 16.0GB. [2023-01-27 20:14:16,584 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 396.4MB. Free memory is still 345.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 20:14:16,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.98ms. Allocated memory is still 518.0MB. Free memory was 467.1MB in the beginning and 455.7MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-27 20:14:16,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.45ms. Allocated memory is still 518.0MB. Free memory was 455.7MB in the beginning and 453.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 20:14:16,588 INFO L158 Benchmark]: Boogie Preprocessor took 18.19ms. Allocated memory is still 518.0MB. Free memory was 453.2MB in the beginning and 451.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 20:14:16,588 INFO L158 Benchmark]: RCFGBuilder took 501.61ms. Allocated memory is still 518.0MB. Free memory was 451.5MB in the beginning and 482.9MB in the end (delta: -31.3MB). Peak memory consumption was 29.3MB. Max. memory is 16.0GB. [2023-01-27 20:14:16,588 INFO L158 Benchmark]: TraceAbstraction took 9349.36ms. Allocated memory was 518.0MB in the beginning and 629.1MB in the end (delta: 111.1MB). Free memory was 482.1MB in the beginning and 445.7MB in the end (delta: 36.4MB). Peak memory consumption was 148.6MB. Max. memory is 16.0GB. [2023-01-27 20:14:16,589 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 396.4MB. Free memory is still 345.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 168.98ms. Allocated memory is still 518.0MB. Free memory was 467.1MB in the beginning and 455.7MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 33.45ms. Allocated memory is still 518.0MB. Free memory was 455.7MB in the beginning and 453.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.19ms. Allocated memory is still 518.0MB. Free memory was 453.2MB in the beginning and 451.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 501.61ms. Allocated memory is still 518.0MB. Free memory was 451.5MB in the beginning and 482.9MB in the end (delta: -31.3MB). Peak memory consumption was 29.3MB. Max. memory is 16.0GB. * TraceAbstraction took 9349.36ms. Allocated memory was 518.0MB in the beginning and 629.1MB in the end (delta: 111.1MB). Free memory was 482.1MB in the beginning and 445.7MB in the end (delta: 36.4MB). Peak memory consumption was 148.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.8s, 233 PlacesBefore, 26 PlacesAfterwards, 236 TransitionsBefore, 16 TransitionsAfterwards, 16638 CoEnabledTransitionPairs, 8 FixpointIterations, 69 TrivialSequentialCompositions, 138 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 49 ConcurrentYvCompositions, 13 ChoiceCompositions, 272 TotalNumberOfCompositions, 14490 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14490, independent: 14490, independent conditional: 0, independent unconditional: 14490, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9968, independent: 9968, independent conditional: 0, independent unconditional: 9968, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14490, independent: 4522, independent conditional: 0, independent unconditional: 4522, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 9968, unknown conditional: 0, unknown unconditional: 9968] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 88]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 372 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 196 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 196 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 411 IncrementalHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 0 mSDtfsCounter, 411 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=3, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 1170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-27 20:14:16,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...