/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:04:52,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:04:52,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:04:52,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:04:52,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:04:52,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:04:52,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:04:52,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:04:52,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:04:52,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:04:52,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:04:52,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:04:52,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:04:52,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:04:52,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:04:52,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:04:52,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:04:52,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:04:52,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:04:52,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:04:52,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:04:52,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:04:52,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:04:52,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:04:52,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:04:52,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:04:52,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:04:52,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:04:52,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:04:52,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:04:52,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:04:52,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:04:52,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:04:52,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:04:52,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:04:52,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:04:52,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:04:52,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:04:52,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:04:52,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:04:52,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:04:52,654 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 07:04:52,676 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:04:52,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:04:52,677 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:04:52,677 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:04:52,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:04:52,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:04:52,678 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:04:52,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:04:52,678 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:04:52,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:04:52,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:04:52,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:04:52,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:04:52,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:04:52,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:04:52,679 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:04:52,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:04:52,679 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:04:52,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:04:52,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:04:52,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:04:52,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:04:52,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:04:52,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:04:52,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:04:52,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:04:52,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:04:52,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:04:52,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:04:52,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:04:52,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:04:52,681 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:04:52,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:04:52,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:04:52,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:04:52,924 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:04:52,925 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:04:52,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2023-01-28 07:04:53,984 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:04:54,274 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:04:54,274 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2023-01-28 07:04:54,292 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3fad8b6/1c95c211dd8949c8b31a3126e428e49e/FLAGc7b684fa3 [2023-01-28 07:04:54,308 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3fad8b6/1c95c211dd8949c8b31a3126e428e49e [2023-01-28 07:04:54,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:04:54,311 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:04:54,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:04:54,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:04:54,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:04:54,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:54,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e7f138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54, skipping insertion in model container [2023-01-28 07:04:54,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:54,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:04:54,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:04:54,820 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2023-01-28 07:04:54,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:04:54,849 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:04:54,888 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2023-01-28 07:04:54,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:04:54,989 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:04:54,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54 WrapperNode [2023-01-28 07:04:54,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:04:54,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:04:54,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:04:54,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:04:54,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:55,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:55,051 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 135 [2023-01-28 07:04:55,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:04:55,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:04:55,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:04:55,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:04:55,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:55,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:55,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:55,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:55,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:55,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:55,080 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:55,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:55,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:04:55,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:04:55,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:04:55,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:04:55,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (1/1) ... [2023-01-28 07:04:55,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:04:55,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:04:55,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 07:04:55,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 07:04:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:04:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:04:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:04:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:04:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 07:04:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:04:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:04:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-01-28 07:04:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-01-28 07:04:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:04:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:04:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:04:55,168 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 07:04:55,378 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:04:55,380 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:04:55,564 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:04:55,569 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:04:55,569 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:04:55,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:04:55 BoogieIcfgContainer [2023-01-28 07:04:55,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:04:55,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:04:55,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:04:55,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:04:55,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:04:54" (1/3) ... [2023-01-28 07:04:55,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f67c089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:04:55, skipping insertion in model container [2023-01-28 07:04:55,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:54" (2/3) ... [2023-01-28 07:04:55,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f67c089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:04:55, skipping insertion in model container [2023-01-28 07:04:55,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:04:55" (3/3) ... [2023-01-28 07:04:55,575 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2023-01-28 07:04:55,586 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:04:55,587 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-01-28 07:04:55,587 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:04:55,664 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 07:04:55,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 174 transitions, 364 flow [2023-01-28 07:04:55,739 INFO L130 PetriNetUnfolder]: 10/212 cut-off events. [2023-01-28 07:04:55,739 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:04:55,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 212 events. 10/212 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 357 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 125. Up to 4 conditions per place. [2023-01-28 07:04:55,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 174 transitions, 364 flow [2023-01-28 07:04:55,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 162 transitions, 336 flow [2023-01-28 07:04:55,752 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:04:55,761 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 162 transitions, 336 flow [2023-01-28 07:04:55,765 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 162 transitions, 336 flow [2023-01-28 07:04:55,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 162 transitions, 336 flow [2023-01-28 07:04:55,813 INFO L130 PetriNetUnfolder]: 7/193 cut-off events. [2023-01-28 07:04:55,813 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:04:55,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 193 events. 7/193 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 298 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2023-01-28 07:04:55,822 INFO L119 LiptonReduction]: Number of co-enabled transitions 2392 [2023-01-28 07:05:04,551 INFO L134 LiptonReduction]: Checked pairs total: 5218 [2023-01-28 07:05:04,551 INFO L136 LiptonReduction]: Total number of compositions: 172 [2023-01-28 07:05:04,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:05:04,568 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;@73a0c7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:05:04,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-01-28 07:05:04,569 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-01-28 07:05:04,569 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:05:04,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:04,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-01-28 07:05:04,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:04,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:04,573 INFO L85 PathProgramCache]: Analyzing trace with hash 603, now seen corresponding path program 1 times [2023-01-28 07:05:04,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:04,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577196985] [2023-01-28 07:05:04,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:04,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:04,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:04,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:04,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577196985] [2023-01-28 07:05:04,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577196985] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:04,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:04,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-01-28 07:05:04,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581576016] [2023-01-28 07:05:04,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:04,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 07:05:04,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:04,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 07:05:04,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 07:05:04,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 346 [2023-01-28 07:05:04,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 76 flow. Second operand has 2 states, 2 states have (on average 158.5) internal successors, (317), 2 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:04,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:04,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 346 [2023-01-28 07:05:04,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:04,864 INFO L130 PetriNetUnfolder]: 217/419 cut-off events. [2023-01-28 07:05:04,864 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-01-28 07:05:04,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 829 conditions, 419 events. 217/419 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1957 event pairs, 216 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 738. Up to 391 conditions per place. [2023-01-28 07:05:04,868 INFO L137 encePairwiseOnDemand]: 343/346 looper letters, 25 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2023-01-28 07:05:04,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 29 transitions, 120 flow [2023-01-28 07:05:04,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 07:05:04,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 07:05:04,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 344 transitions. [2023-01-28 07:05:04,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49710982658959535 [2023-01-28 07:05:04,878 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 344 transitions. [2023-01-28 07:05:04,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 344 transitions. [2023-01-28 07:05:04,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:04,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 344 transitions. [2023-01-28 07:05:04,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 172.0) internal successors, (344), 2 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:04,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 346.0) internal successors, (1038), 3 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) [2023-01-28 07:05:04,886 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 346.0) internal successors, (1038), 3 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) [2023-01-28 07:05:04,887 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 76 flow. Second operand 2 states and 344 transitions. [2023-01-28 07:05:04,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 29 transitions, 120 flow [2023-01-28 07:05:04,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 112 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 07:05:04,890 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 62 flow [2023-01-28 07:05:04,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=62, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2023-01-28 07:05:04,894 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -5 predicate places. [2023-01-28 07:05:04,894 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 62 flow [2023-01-28 07:05:04,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 158.5) internal successors, (317), 2 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:04,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:04,894 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-28 07:05:04,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:05:04,895 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:04,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:04,895 INFO L85 PathProgramCache]: Analyzing trace with hash 18565803, now seen corresponding path program 1 times [2023-01-28 07:05:04,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:04,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317205658] [2023-01-28 07:05:04,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:04,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:05,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:05,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:05,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317205658] [2023-01-28 07:05:05,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317205658] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:05,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:05,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:05:05,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852741076] [2023-01-28 07:05:05,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:05,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:05,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:05,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:05,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:05,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 346 [2023-01-28 07:05:05,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:05,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 346 [2023-01-28 07:05:05,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:05,282 INFO L130 PetriNetUnfolder]: 639/1091 cut-off events. [2023-01-28 07:05:05,282 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:05:05,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2192 conditions, 1091 events. 639/1091 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5128 event pairs, 306 based on Foata normal form. 0/1019 useless extension candidates. Maximal degree in co-relation 2189. Up to 767 conditions per place. [2023-01-28 07:05:05,287 INFO L137 encePairwiseOnDemand]: 338/346 looper letters, 35 selfloop transitions, 7 changer transitions 0/42 dead transitions. [2023-01-28 07:05:05,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 42 transitions, 172 flow [2023-01-28 07:05:05,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:05,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 421 transitions. [2023-01-28 07:05:05,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4055876685934489 [2023-01-28 07:05:05,290 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 421 transitions. [2023-01-28 07:05:05,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 421 transitions. [2023-01-28 07:05:05,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:05,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 421 transitions. [2023-01-28 07:05:05,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,294 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,294 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 62 flow. Second operand 3 states and 421 transitions. [2023-01-28 07:05:05,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 42 transitions, 172 flow [2023-01-28 07:05:05,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:05:05,295 INFO L231 Difference]: Finished difference. Result has 35 places, 34 transitions, 112 flow [2023-01-28 07:05:05,295 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=35, PETRI_TRANSITIONS=34} [2023-01-28 07:05:05,296 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2023-01-28 07:05:05,296 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 34 transitions, 112 flow [2023-01-28 07:05:05,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:05,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-28 07:05:05,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:05:05,296 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:05,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:05,297 INFO L85 PathProgramCache]: Analyzing trace with hash 575539229, now seen corresponding path program 1 times [2023-01-28 07:05:05,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:05,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165556268] [2023-01-28 07:05:05,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:05,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:05,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:05,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:05,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165556268] [2023-01-28 07:05:05,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165556268] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:05,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:05,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:05:05,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579522191] [2023-01-28 07:05:05,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:05,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:05,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:05,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:05,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:05,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 346 [2023-01-28 07:05:05,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:05,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 346 [2023-01-28 07:05:05,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:05,610 INFO L130 PetriNetUnfolder]: 755/1298 cut-off events. [2023-01-28 07:05:05,610 INFO L131 PetriNetUnfolder]: For 478/478 co-relation queries the response was YES. [2023-01-28 07:05:05,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3359 conditions, 1298 events. 755/1298 cut-off events. For 478/478 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6430 event pairs, 422 based on Foata normal form. 37/1333 useless extension candidates. Maximal degree in co-relation 3354. Up to 992 conditions per place. [2023-01-28 07:05:05,615 INFO L137 encePairwiseOnDemand]: 339/346 looper letters, 39 selfloop transitions, 9 changer transitions 2/50 dead transitions. [2023-01-28 07:05:05,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 50 transitions, 274 flow [2023-01-28 07:05:05,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:05,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:05,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 420 transitions. [2023-01-28 07:05:05,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4046242774566474 [2023-01-28 07:05:05,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 420 transitions. [2023-01-28 07:05:05,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 420 transitions. [2023-01-28 07:05:05,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:05,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 420 transitions. [2023-01-28 07:05:05,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,620 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,620 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 112 flow. Second operand 3 states and 420 transitions. [2023-01-28 07:05:05,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 50 transitions, 274 flow [2023-01-28 07:05:05,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:05:05,623 INFO L231 Difference]: Finished difference. Result has 36 places, 40 transitions, 169 flow [2023-01-28 07:05:05,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=36, PETRI_TRANSITIONS=40} [2023-01-28 07:05:05,623 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2023-01-28 07:05:05,624 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 40 transitions, 169 flow [2023-01-28 07:05:05,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:05,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:05,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 07:05:05,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:05,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:05,625 INFO L85 PathProgramCache]: Analyzing trace with hash 857877734, now seen corresponding path program 1 times [2023-01-28 07:05:05,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:05,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988996314] [2023-01-28 07:05:05,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:05,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:05,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:05,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:05,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988996314] [2023-01-28 07:05:05,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988996314] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:05,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:05,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:05:05,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164509735] [2023-01-28 07:05:05,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:05,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:05,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:05,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:05,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:05,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 346 [2023-01-28 07:05:05,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 40 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:05,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 346 [2023-01-28 07:05:05,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:05,735 INFO L130 PetriNetUnfolder]: 105/210 cut-off events. [2023-01-28 07:05:05,735 INFO L131 PetriNetUnfolder]: For 167/193 co-relation queries the response was YES. [2023-01-28 07:05:05,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 210 events. 105/210 cut-off events. For 167/193 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 803 event pairs, 23 based on Foata normal form. 23/223 useless extension candidates. Maximal degree in co-relation 543. Up to 149 conditions per place. [2023-01-28 07:05:05,736 INFO L137 encePairwiseOnDemand]: 344/346 looper letters, 25 selfloop transitions, 1 changer transitions 0/29 dead transitions. [2023-01-28 07:05:05,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 29 transitions, 142 flow [2023-01-28 07:05:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:05,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 486 transitions. [2023-01-28 07:05:05,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4682080924855491 [2023-01-28 07:05:05,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 486 transitions. [2023-01-28 07:05:05,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 486 transitions. [2023-01-28 07:05:05,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:05,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 486 transitions. [2023-01-28 07:05:05,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,741 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,741 INFO L175 Difference]: Start difference. First operand has 36 places, 40 transitions, 169 flow. Second operand 3 states and 486 transitions. [2023-01-28 07:05:05,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 29 transitions, 142 flow [2023-01-28 07:05:05,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 128 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-01-28 07:05:05,742 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 58 flow [2023-01-28 07:05:05,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-01-28 07:05:05,743 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -6 predicate places. [2023-01-28 07:05:05,743 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 58 flow [2023-01-28 07:05:05,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:05,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:05,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 07:05:05,743 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:05,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:05,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1911713549, now seen corresponding path program 1 times [2023-01-28 07:05:05,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:05,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379657395] [2023-01-28 07:05:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:05,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:05,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:05,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:05,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379657395] [2023-01-28 07:05:05,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379657395] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:05,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:05,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:05:05,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158581114] [2023-01-28 07:05:05,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:05,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:05,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:05,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:05,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:05,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 346 [2023-01-28 07:05:05,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:05,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:05,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 346 [2023-01-28 07:05:05,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:06,047 INFO L130 PetriNetUnfolder]: 136/275 cut-off events. [2023-01-28 07:05:06,047 INFO L131 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2023-01-28 07:05:06,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673 conditions, 275 events. 136/275 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1052 event pairs, 52 based on Foata normal form. 12/286 useless extension candidates. Maximal degree in co-relation 667. Up to 140 conditions per place. [2023-01-28 07:05:06,048 INFO L137 encePairwiseOnDemand]: 342/346 looper letters, 29 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2023-01-28 07:05:06,048 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 155 flow [2023-01-28 07:05:06,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:06,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:06,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2023-01-28 07:05:06,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4479768786127168 [2023-01-28 07:05:06,050 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2023-01-28 07:05:06,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2023-01-28 07:05:06,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:06,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2023-01-28 07:05:06,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:06,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:06,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:06,053 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 58 flow. Second operand 3 states and 465 transitions. [2023-01-28 07:05:06,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 155 flow [2023-01-28 07:05:06,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 33 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:05:06,053 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 76 flow [2023-01-28 07:05:06,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2023-01-28 07:05:06,054 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -4 predicate places. [2023-01-28 07:05:06,054 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 76 flow [2023-01-28 07:05:06,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:06,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:06,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:06,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 07:05:06,055 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:06,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:06,055 INFO L85 PathProgramCache]: Analyzing trace with hash 189632573, now seen corresponding path program 2 times [2023-01-28 07:05:06,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:06,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922595594] [2023-01-28 07:05:06,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:06,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:06,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:06,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:06,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922595594] [2023-01-28 07:05:06,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922595594] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:06,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:06,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:05:06,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605402823] [2023-01-28 07:05:06,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:06,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:06,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:06,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:06,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:06,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 346 [2023-01-28 07:05:06,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:06,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:06,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 346 [2023-01-28 07:05:06,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:06,372 INFO L130 PetriNetUnfolder]: 54/140 cut-off events. [2023-01-28 07:05:06,372 INFO L131 PetriNetUnfolder]: For 70/71 co-relation queries the response was YES. [2023-01-28 07:05:06,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 140 events. 54/140 cut-off events. For 70/71 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 432 event pairs, 26 based on Foata normal form. 12/148 useless extension candidates. Maximal degree in co-relation 365. Up to 69 conditions per place. [2023-01-28 07:05:06,373 INFO L137 encePairwiseOnDemand]: 343/346 looper letters, 23 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-01-28 07:05:06,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 129 flow [2023-01-28 07:05:06,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:06,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:06,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2023-01-28 07:05:06,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.441233140655106 [2023-01-28 07:05:06,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 458 transitions. [2023-01-28 07:05:06,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 458 transitions. [2023-01-28 07:05:06,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:06,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 458 transitions. [2023-01-28 07:05:06,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:06,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:06,378 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:06,378 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 76 flow. Second operand 3 states and 458 transitions. [2023-01-28 07:05:06,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 129 flow [2023-01-28 07:05:06,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 115 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-01-28 07:05:06,379 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 61 flow [2023-01-28 07:05:06,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-01-28 07:05:06,380 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -4 predicate places. [2023-01-28 07:05:06,380 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 61 flow [2023-01-28 07:05:06,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:06,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:06,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:06,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 07:05:06,381 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:06,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:06,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1158793067, now seen corresponding path program 3 times [2023-01-28 07:05:06,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:06,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356531455] [2023-01-28 07:05:06,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:06,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:07,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:07,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:07,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356531455] [2023-01-28 07:05:07,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356531455] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:07,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:07,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-01-28 07:05:07,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818981480] [2023-01-28 07:05:07,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:07,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-01-28 07:05:07,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-01-28 07:05:07,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-01-28 07:05:07,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 346 [2023-01-28 07:05:07,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 61 flow. Second operand has 13 states, 13 states have (on average 103.61538461538461) internal successors, (1347), 13 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:07,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:07,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 346 [2023-01-28 07:05:07,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:08,177 INFO L130 PetriNetUnfolder]: 109/262 cut-off events. [2023-01-28 07:05:08,177 INFO L131 PetriNetUnfolder]: For 117/117 co-relation queries the response was YES. [2023-01-28 07:05:08,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 262 events. 109/262 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1003 event pairs, 17 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 639. Up to 130 conditions per place. [2023-01-28 07:05:08,178 INFO L137 encePairwiseOnDemand]: 333/346 looper letters, 59 selfloop transitions, 14 changer transitions 0/73 dead transitions. [2023-01-28 07:05:08,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 73 transitions, 346 flow [2023-01-28 07:05:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 07:05:08,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 07:05:08,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1094 transitions. [2023-01-28 07:05:08,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3161849710982659 [2023-01-28 07:05:08,182 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1094 transitions. [2023-01-28 07:05:08,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1094 transitions. [2023-01-28 07:05:08,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:08,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1094 transitions. [2023-01-28 07:05:08,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 109.4) internal successors, (1094), 10 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:08,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 346.0) internal successors, (3806), 11 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:08,190 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 346.0) internal successors, (3806), 11 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:08,190 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 61 flow. Second operand 10 states and 1094 transitions. [2023-01-28 07:05:08,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 73 transitions, 346 flow [2023-01-28 07:05:08,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 73 transitions, 334 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:05:08,192 INFO L231 Difference]: Finished difference. Result has 46 places, 35 transitions, 160 flow [2023-01-28 07:05:08,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=160, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2023-01-28 07:05:08,193 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 10 predicate places. [2023-01-28 07:05:08,193 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 160 flow [2023-01-28 07:05:08,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 103.61538461538461) internal successors, (1347), 13 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:08,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:08,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:08,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 07:05:08,195 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:08,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:08,195 INFO L85 PathProgramCache]: Analyzing trace with hash 790807017, now seen corresponding path program 1 times [2023-01-28 07:05:08,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:08,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895826947] [2023-01-28 07:05:08,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:08,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:08,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:08,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:08,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895826947] [2023-01-28 07:05:08,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895826947] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:08,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:08,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 07:05:08,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205821948] [2023-01-28 07:05:08,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:08,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:05:08,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:08,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:05:08,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:05:08,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 346 [2023-01-28 07:05:08,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 160 flow. Second operand has 7 states, 7 states have (on average 112.0) internal successors, (784), 7 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:08,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:08,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 346 [2023-01-28 07:05:08,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:08,952 INFO L130 PetriNetUnfolder]: 121/309 cut-off events. [2023-01-28 07:05:08,952 INFO L131 PetriNetUnfolder]: For 254/254 co-relation queries the response was YES. [2023-01-28 07:05:08,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 309 events. 121/309 cut-off events. For 254/254 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1354 event pairs, 33 based on Foata normal form. 1/308 useless extension candidates. Maximal degree in co-relation 940. Up to 107 conditions per place. [2023-01-28 07:05:08,954 INFO L137 encePairwiseOnDemand]: 339/346 looper letters, 57 selfloop transitions, 12 changer transitions 3/72 dead transitions. [2023-01-28 07:05:08,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 72 transitions, 458 flow [2023-01-28 07:05:08,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 07:05:08,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 07:05:08,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 707 transitions. [2023-01-28 07:05:08,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3405587668593449 [2023-01-28 07:05:08,956 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 707 transitions. [2023-01-28 07:05:08,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 707 transitions. [2023-01-28 07:05:08,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:08,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 707 transitions. [2023-01-28 07:05:08,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.83333333333333) internal successors, (707), 6 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:08,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:08,960 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:08,960 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 160 flow. Second operand 6 states and 707 transitions. [2023-01-28 07:05:08,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 72 transitions, 458 flow [2023-01-28 07:05:08,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 72 transitions, 458 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:05:08,962 INFO L231 Difference]: Finished difference. Result has 54 places, 38 transitions, 215 flow [2023-01-28 07:05:08,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=54, PETRI_TRANSITIONS=38} [2023-01-28 07:05:08,962 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 18 predicate places. [2023-01-28 07:05:08,963 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 38 transitions, 215 flow [2023-01-28 07:05:08,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 112.0) internal successors, (784), 7 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:08,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:08,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:08,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 07:05:08,963 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:08,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:08,964 INFO L85 PathProgramCache]: Analyzing trace with hash 88600491, now seen corresponding path program 4 times [2023-01-28 07:05:08,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:08,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041693026] [2023-01-28 07:05:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:08,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:10,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:10,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041693026] [2023-01-28 07:05:10,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041693026] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:10,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:10,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-01-28 07:05:10,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693366558] [2023-01-28 07:05:10,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:10,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-01-28 07:05:10,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:10,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-01-28 07:05:10,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-01-28 07:05:10,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 346 [2023-01-28 07:05:10,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 38 transitions, 215 flow. Second operand has 15 states, 15 states have (on average 103.4) internal successors, (1551), 15 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:10,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:10,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 346 [2023-01-28 07:05:10,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:11,207 INFO L130 PetriNetUnfolder]: 120/314 cut-off events. [2023-01-28 07:05:11,207 INFO L131 PetriNetUnfolder]: For 505/505 co-relation queries the response was YES. [2023-01-28 07:05:11,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 314 events. 120/314 cut-off events. For 505/505 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1394 event pairs, 45 based on Foata normal form. 1/313 useless extension candidates. Maximal degree in co-relation 1058. Up to 236 conditions per place. [2023-01-28 07:05:11,209 INFO L137 encePairwiseOnDemand]: 335/346 looper letters, 48 selfloop transitions, 7 changer transitions 22/77 dead transitions. [2023-01-28 07:05:11,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 77 transitions, 541 flow [2023-01-28 07:05:11,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 07:05:11,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 07:05:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1187 transitions. [2023-01-28 07:05:11,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31187598528638993 [2023-01-28 07:05:11,212 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1187 transitions. [2023-01-28 07:05:11,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1187 transitions. [2023-01-28 07:05:11,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:11,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1187 transitions. [2023-01-28 07:05:11,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 107.9090909090909) internal successors, (1187), 11 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:11,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 346.0) internal successors, (4152), 12 states have internal predecessors, (4152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:11,218 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 346.0) internal successors, (4152), 12 states have internal predecessors, (4152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:11,218 INFO L175 Difference]: Start difference. First operand has 54 places, 38 transitions, 215 flow. Second operand 11 states and 1187 transitions. [2023-01-28 07:05:11,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 77 transitions, 541 flow [2023-01-28 07:05:11,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 77 transitions, 508 flow, removed 10 selfloop flow, removed 4 redundant places. [2023-01-28 07:05:11,221 INFO L231 Difference]: Finished difference. Result has 63 places, 39 transitions, 224 flow [2023-01-28 07:05:11,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=224, PETRI_PLACES=63, PETRI_TRANSITIONS=39} [2023-01-28 07:05:11,221 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 27 predicate places. [2023-01-28 07:05:11,222 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 39 transitions, 224 flow [2023-01-28 07:05:11,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 103.4) internal successors, (1551), 15 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:11,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:11,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:11,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 07:05:11,223 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:11,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:11,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1896762687, now seen corresponding path program 5 times [2023-01-28 07:05:11,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:11,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002231742] [2023-01-28 07:05:11,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:11,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:12,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:12,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002231742] [2023-01-28 07:05:12,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002231742] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:12,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:12,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-01-28 07:05:12,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888276593] [2023-01-28 07:05:12,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:12,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-01-28 07:05:12,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:12,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-01-28 07:05:12,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-01-28 07:05:12,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 346 [2023-01-28 07:05:12,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 39 transitions, 224 flow. Second operand has 13 states, 13 states have (on average 103.61538461538461) internal successors, (1347), 13 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:12,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:12,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 346 [2023-01-28 07:05:12,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:12,589 INFO L130 PetriNetUnfolder]: 118/321 cut-off events. [2023-01-28 07:05:12,589 INFO L131 PetriNetUnfolder]: For 554/554 co-relation queries the response was YES. [2023-01-28 07:05:12,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 321 events. 118/321 cut-off events. For 554/554 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1451 event pairs, 32 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 1122. Up to 188 conditions per place. [2023-01-28 07:05:12,591 INFO L137 encePairwiseOnDemand]: 333/346 looper letters, 64 selfloop transitions, 25 changer transitions 2/91 dead transitions. [2023-01-28 07:05:12,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 91 transitions, 645 flow [2023-01-28 07:05:12,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 07:05:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 07:05:12,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1197 transitions. [2023-01-28 07:05:12,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31450341565948503 [2023-01-28 07:05:12,595 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1197 transitions. [2023-01-28 07:05:12,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1197 transitions. [2023-01-28 07:05:12,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:12,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1197 transitions. [2023-01-28 07:05:12,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 108.81818181818181) internal successors, (1197), 11 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:12,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 346.0) internal successors, (4152), 12 states have internal predecessors, (4152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:12,601 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 346.0) internal successors, (4152), 12 states have internal predecessors, (4152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:12,601 INFO L175 Difference]: Start difference. First operand has 63 places, 39 transitions, 224 flow. Second operand 11 states and 1197 transitions. [2023-01-28 07:05:12,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 91 transitions, 645 flow [2023-01-28 07:05:12,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 91 transitions, 613 flow, removed 10 selfloop flow, removed 8 redundant places. [2023-01-28 07:05:12,605 INFO L231 Difference]: Finished difference. Result has 65 places, 56 transitions, 386 flow [2023-01-28 07:05:12,606 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=386, PETRI_PLACES=65, PETRI_TRANSITIONS=56} [2023-01-28 07:05:12,607 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 29 predicate places. [2023-01-28 07:05:12,607 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 56 transitions, 386 flow [2023-01-28 07:05:12,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 103.61538461538461) internal successors, (1347), 13 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:12,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:12,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:12,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 07:05:12,608 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:12,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1506625265, now seen corresponding path program 6 times [2023-01-28 07:05:12,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:12,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106562714] [2023-01-28 07:05:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:12,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:13,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 07:05:13,314 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.InterpolantChecker.checkInductivity(InterpolantChecker.java:409) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:383) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:154) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:260) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:237) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:848) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:776) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:284) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-01-28 07:05:13,316 INFO L158 Benchmark]: Toolchain (without parser) took 19005.37ms. Allocated memory was 471.9MB in the beginning and 713.0MB in the end (delta: 241.2MB). Free memory was 427.2MB in the beginning and 359.5MB in the end (delta: 67.6MB). Peak memory consumption was 420.8MB. Max. memory is 16.0GB. [2023-01-28 07:05:13,316 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 316.7MB. Free memory was 265.6MB in the beginning and 265.4MB in the end (delta: 193.1kB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:05:13,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 676.96ms. Allocated memory is still 471.9MB. Free memory was 426.9MB in the beginning and 423.4MB in the end (delta: 3.6MB). Peak memory consumption was 58.1MB. Max. memory is 16.0GB. [2023-01-28 07:05:13,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.41ms. Allocated memory is still 471.9MB. Free memory was 422.5MB in the beginning and 419.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:05:13,317 INFO L158 Benchmark]: Boogie Preprocessor took 49.37ms. Allocated memory is still 471.9MB. Free memory was 419.5MB in the beginning and 417.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:05:13,317 INFO L158 Benchmark]: RCFGBuilder took 468.90ms. Allocated memory is still 471.9MB. Free memory was 417.1MB in the beginning and 393.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-01-28 07:05:13,317 INFO L158 Benchmark]: TraceAbstraction took 17743.73ms. Allocated memory was 471.9MB in the beginning and 713.0MB in the end (delta: 241.2MB). Free memory was 392.3MB in the beginning and 359.5MB in the end (delta: 32.7MB). Peak memory consumption was 383.7MB. Max. memory is 16.0GB. [2023-01-28 07:05:13,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 316.7MB. Free memory was 265.6MB in the beginning and 265.4MB in the end (delta: 193.1kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 676.96ms. Allocated memory is still 471.9MB. Free memory was 426.9MB in the beginning and 423.4MB in the end (delta: 3.6MB). Peak memory consumption was 58.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.41ms. Allocated memory is still 471.9MB. Free memory was 422.5MB in the beginning and 419.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 49.37ms. Allocated memory is still 471.9MB. Free memory was 419.5MB in the beginning and 417.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 468.90ms. Allocated memory is still 471.9MB. Free memory was 417.1MB in the beginning and 393.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 17743.73ms. Allocated memory was 471.9MB in the beginning and 713.0MB in the end (delta: 241.2MB). Free memory was 392.3MB in the beginning and 359.5MB in the end (delta: 32.7MB). Peak memory consumption was 383.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.8s, 162 PlacesBefore, 36 PlacesAfterwards, 162 TransitionsBefore, 32 TransitionsAfterwards, 2392 CoEnabledTransitionPairs, 7 FixpointIterations, 98 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 13 ConcurrentYvCompositions, 4 ChoiceCompositions, 172 TotalNumberOfCompositions, 5218 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2366, independent: 2168, independent conditional: 0, independent unconditional: 2168, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1278, independent: 1230, independent conditional: 0, independent unconditional: 1230, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2366, independent: 938, independent conditional: 0, independent unconditional: 938, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 1278, unknown conditional: 0, unknown unconditional: 1278] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.InterpolantChecker.checkInductivity(InterpolantChecker.java:409) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-01-28 07:05:13,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...