/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/goblint-regression/13-privatized_24-multiple-protecting_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:42:29,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:42:29,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:42:29,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:42:29,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:42:29,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:42:29,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:42:29,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:42:29,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:42:29,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:42:29,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:42:29,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:42:29,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:42:29,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:42:29,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:42:29,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:42:29,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:42:29,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:42:29,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:42:29,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:42:29,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:42:29,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:42:29,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:42:29,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:42:29,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:42:29,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:42:29,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:42:29,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:42:29,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:42:29,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:42:29,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:42:29,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:42:29,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:42:29,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:42:29,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:42:29,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:42:29,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:42:29,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:42:29,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:42:29,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:42:29,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:42:29,617 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 07:42:29,630 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:42:29,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:42:29,631 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:42:29,632 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:42:29,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:42:29,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:42:29,633 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:42:29,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:42:29,633 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:42:29,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:42:29,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:42:29,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:42:29,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:42:29,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:42:29,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:42:29,634 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:42:29,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:42:29,635 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:42:29,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:42:29,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:42:29,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:42:29,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:42:29,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:42:29,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:42:29,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:42:29,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:42:29,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:42:29,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:42:29,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:42:29,636 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:42:29,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:42:29,636 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:42:29,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:42:29,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:42:29,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:42:29,829 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:42:29,830 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:42:29,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-01-28 07:42:30,814 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:42:31,059 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:42:31,060 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-01-28 07:42:31,070 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed5bee598/e039dceed154440da7349cec02a6c7d3/FLAG99bc4a76a [2023-01-28 07:42:31,081 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed5bee598/e039dceed154440da7349cec02a6c7d3 [2023-01-28 07:42:31,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:42:31,084 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:42:31,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:42:31,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:42:31,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:42:31,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198640d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31, skipping insertion in model container [2023-01-28 07:42:31,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:42:31,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:42:31,223 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] [2023-01-28 07:42:31,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:42:31,321 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:42:31,329 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] [2023-01-28 07:42:31,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:42:31,375 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:42:31,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31 WrapperNode [2023-01-28 07:42:31,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:42:31,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:42:31,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:42:31,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:42:31,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,406 INFO L138 Inliner]: procedures = 162, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2023-01-28 07:42:31,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:42:31,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:42:31,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:42:31,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:42:31,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,435 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:42:31,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:42:31,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:42:31,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:42:31,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (1/1) ... [2023-01-28 07:42:31,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:42:31,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:42:31,491 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 07:42:31,516 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 07:42:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:42:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:42:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:42:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:42:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:42:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 07:42:31,531 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 07:42:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:42:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:42:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:42:31,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:42:31,532 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 07:42:31,649 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:42:31,661 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:42:31,918 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:42:31,923 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:42:31,923 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:42:31,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:42:31 BoogieIcfgContainer [2023-01-28 07:42:31,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:42:31,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:42:31,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:42:31,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:42:31,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:42:31" (1/3) ... [2023-01-28 07:42:31,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ecf6537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:42:31, skipping insertion in model container [2023-01-28 07:42:31,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:31" (2/3) ... [2023-01-28 07:42:31,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ecf6537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:42:31, skipping insertion in model container [2023-01-28 07:42:31,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:42:31" (3/3) ... [2023-01-28 07:42:31,930 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2023-01-28 07:42:31,940 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:42:31,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-01-28 07:42:31,940 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:42:31,995 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 07:42:32,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 131 transitions, 270 flow [2023-01-28 07:42:32,072 INFO L130 PetriNetUnfolder]: 4/130 cut-off events. [2023-01-28 07:42:32,072 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:42:32,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 130 events. 4/130 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2023-01-28 07:42:32,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 131 transitions, 270 flow [2023-01-28 07:42:32,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 117 transitions, 237 flow [2023-01-28 07:42:32,081 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:42:32,091 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 117 transitions, 237 flow [2023-01-28 07:42:32,093 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 117 transitions, 237 flow [2023-01-28 07:42:32,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 117 transitions, 237 flow [2023-01-28 07:42:32,120 INFO L130 PetriNetUnfolder]: 3/117 cut-off events. [2023-01-28 07:42:32,120 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:42:32,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 117 events. 3/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 107 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2023-01-28 07:42:32,129 INFO L119 LiptonReduction]: Number of co-enabled transitions 3102 [2023-01-28 07:42:34,410 INFO L134 LiptonReduction]: Checked pairs total: 9364 [2023-01-28 07:42:34,410 INFO L136 LiptonReduction]: Total number of compositions: 91 [2023-01-28 07:42:34,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:42:34,427 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;@2773c34a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:42:34,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 07:42:34,429 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2023-01-28 07:42:34,429 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:42:34,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:34,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-28 07:42:34,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:42:34,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:34,433 INFO L85 PathProgramCache]: Analyzing trace with hash 415213780, now seen corresponding path program 1 times [2023-01-28 07:42:34,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:34,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338007726] [2023-01-28 07:42:34,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:34,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:42:34,657 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 07:42:34,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:42:34,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338007726] [2023-01-28 07:42:34,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338007726] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:42:34,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:42:34,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 07:42:34,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44074308] [2023-01-28 07:42:34,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:42:34,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:42:34,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:42:34,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:42:34,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:42:34,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 222 [2023-01-28 07:42:34,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 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 07:42:34,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:42:34,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 222 [2023-01-28 07:42:34,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:42:34,822 INFO L130 PetriNetUnfolder]: 192/481 cut-off events. [2023-01-28 07:42:34,823 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:42:34,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 481 events. 192/481 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2120 event pairs, 62 based on Foata normal form. 13/449 useless extension candidates. Maximal degree in co-relation 892. Up to 347 conditions per place. [2023-01-28 07:42:34,831 INFO L137 encePairwiseOnDemand]: 214/222 looper letters, 41 selfloop transitions, 2 changer transitions 1/49 dead transitions. [2023-01-28 07:42:34,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 49 transitions, 189 flow [2023-01-28 07:42:34,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:42:34,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:42:34,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-01-28 07:42:34,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5855855855855856 [2023-01-28 07:42:34,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-01-28 07:42:34,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-01-28 07:42:34,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:42:34,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-01-28 07:42:34,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 07:42:34,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 07:42:34,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 07:42:34,870 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 81 flow. Second operand 3 states and 390 transitions. [2023-01-28 07:42:34,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 49 transitions, 189 flow [2023-01-28 07:42:34,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:42:34,874 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 84 flow [2023-01-28 07:42:34,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2023-01-28 07:42:34,878 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2023-01-28 07:42:34,879 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 84 flow [2023-01-28 07:42:34,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 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 07:42:34,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:34,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:42:34,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:42:34,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:42:34,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:34,881 INFO L85 PathProgramCache]: Analyzing trace with hash 94065758, now seen corresponding path program 1 times [2023-01-28 07:42:34,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:34,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646032233] [2023-01-28 07:42:34,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:34,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:42:34,980 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 07:42:34,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:42:34,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646032233] [2023-01-28 07:42:34,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646032233] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:42:34,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:42:34,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:42:34,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140922131] [2023-01-28 07:42:34,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:42:34,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:42:34,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:42:34,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:42:34,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:42:34,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 222 [2023-01-28 07:42:34,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 07:42:34,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:42:34,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 222 [2023-01-28 07:42:34,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:42:35,101 INFO L130 PetriNetUnfolder]: 302/652 cut-off events. [2023-01-28 07:42:35,101 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2023-01-28 07:42:35,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 652 events. 302/652 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2910 event pairs, 143 based on Foata normal form. 6/638 useless extension candidates. Maximal degree in co-relation 1390. Up to 511 conditions per place. [2023-01-28 07:42:35,105 INFO L137 encePairwiseOnDemand]: 210/222 looper letters, 54 selfloop transitions, 12 changer transitions 0/66 dead transitions. [2023-01-28 07:42:35,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 66 transitions, 287 flow [2023-01-28 07:42:35,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:42:35,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:42:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2023-01-28 07:42:35,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.512012012012012 [2023-01-28 07:42:35,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2023-01-28 07:42:35,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2023-01-28 07:42:35,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:42:35,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2023-01-28 07:42:35,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 07:42:35,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 07:42:35,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 07:42:35,110 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 84 flow. Second operand 3 states and 341 transitions. [2023-01-28 07:42:35,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 66 transitions, 287 flow [2023-01-28 07:42:35,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 66 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:42:35,113 INFO L231 Difference]: Finished difference. Result has 42 places, 45 transitions, 156 flow [2023-01-28 07:42:35,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=42, PETRI_TRANSITIONS=45} [2023-01-28 07:42:35,114 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2023-01-28 07:42:35,114 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 45 transitions, 156 flow [2023-01-28 07:42:35,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 07:42:35,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:35,115 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:42:35,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:42:35,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:42:35,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:35,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1845743784, now seen corresponding path program 1 times [2023-01-28 07:42:35,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:35,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845103220] [2023-01-28 07:42:35,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:35,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:42:35,269 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 07:42:35,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:42:35,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845103220] [2023-01-28 07:42:35,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845103220] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:42:35,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:42:35,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:42:35,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131222380] [2023-01-28 07:42:35,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:42:35,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:42:35,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:42:35,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:42:35,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 07:42:35,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 222 [2023-01-28 07:42:35,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 45 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 07:42:35,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:42:35,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 222 [2023-01-28 07:42:35,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:42:35,359 INFO L130 PetriNetUnfolder]: 166/400 cut-off events. [2023-01-28 07:42:35,359 INFO L131 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2023-01-28 07:42:35,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 400 events. 166/400 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1748 event pairs, 34 based on Foata normal form. 13/402 useless extension candidates. Maximal degree in co-relation 998. Up to 301 conditions per place. [2023-01-28 07:42:35,361 INFO L137 encePairwiseOnDemand]: 216/222 looper letters, 56 selfloop transitions, 7 changer transitions 0/63 dead transitions. [2023-01-28 07:42:35,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 63 transitions, 321 flow [2023-01-28 07:42:35,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:42:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:42:35,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 401 transitions. [2023-01-28 07:42:35,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45157657657657657 [2023-01-28 07:42:35,362 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 401 transitions. [2023-01-28 07:42:35,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 401 transitions. [2023-01-28 07:42:35,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:42:35,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 401 transitions. [2023-01-28 07:42:35,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 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 07:42:35,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 07:42:35,365 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 07:42:35,365 INFO L175 Difference]: Start difference. First operand has 42 places, 45 transitions, 156 flow. Second operand 4 states and 401 transitions. [2023-01-28 07:42:35,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 63 transitions, 321 flow [2023-01-28 07:42:35,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 63 transitions, 310 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-01-28 07:42:35,369 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 148 flow [2023-01-28 07:42:35,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2023-01-28 07:42:35,370 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2023-01-28 07:42:35,370 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 148 flow [2023-01-28 07:42:35,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 07:42:35,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:35,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:42:35,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 07:42:35,371 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:42:35,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:35,371 INFO L85 PathProgramCache]: Analyzing trace with hash 281324236, now seen corresponding path program 1 times [2023-01-28 07:42:35,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:35,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870157028] [2023-01-28 07:42:35,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:35,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:42:35,450 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 07:42:35,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:42:35,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870157028] [2023-01-28 07:42:35,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870157028] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:42:35,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:42:35,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 07:42:35,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890355102] [2023-01-28 07:42:35,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:42:35,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:42:35,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:42:35,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:42:35,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:42:35,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 222 [2023-01-28 07:42:35,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 07:42:35,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:42:35,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 222 [2023-01-28 07:42:35,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:42:35,509 INFO L130 PetriNetUnfolder]: 141/363 cut-off events. [2023-01-28 07:42:35,509 INFO L131 PetriNetUnfolder]: For 127/129 co-relation queries the response was YES. [2023-01-28 07:42:35,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 363 events. 141/363 cut-off events. For 127/129 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1465 event pairs, 52 based on Foata normal form. 1/357 useless extension candidates. Maximal degree in co-relation 916. Up to 213 conditions per place. [2023-01-28 07:42:35,510 INFO L137 encePairwiseOnDemand]: 219/222 looper letters, 47 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-01-28 07:42:35,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 293 flow [2023-01-28 07:42:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:42:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:42:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2023-01-28 07:42:35,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5870870870870871 [2023-01-28 07:42:35,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2023-01-28 07:42:35,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2023-01-28 07:42:35,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:42:35,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2023-01-28 07:42:35,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 07:42:35,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 07:42:35,515 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 07:42:35,515 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 148 flow. Second operand 3 states and 391 transitions. [2023-01-28 07:42:35,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 293 flow [2023-01-28 07:42:35,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:42:35,524 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 155 flow [2023-01-28 07:42:35,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2023-01-28 07:42:35,525 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2023-01-28 07:42:35,525 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 155 flow [2023-01-28 07:42:35,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 07:42:35,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:35,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:42:35,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 07:42:35,526 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:42:35,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:35,527 INFO L85 PathProgramCache]: Analyzing trace with hash 331096167, now seen corresponding path program 1 times [2023-01-28 07:42:35,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:35,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321002663] [2023-01-28 07:42:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:35,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:42:35,615 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 07:42:35,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:42:35,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321002663] [2023-01-28 07:42:35,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321002663] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:42:35,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:42:35,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:42:35,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756768025] [2023-01-28 07:42:35,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:42:35,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:42:35,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:42:35,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:42:35,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 07:42:35,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 222 [2023-01-28 07:42:35,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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 07:42:35,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:42:35,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 222 [2023-01-28 07:42:35,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:42:35,663 INFO L130 PetriNetUnfolder]: 115/316 cut-off events. [2023-01-28 07:42:35,663 INFO L131 PetriNetUnfolder]: For 130/131 co-relation queries the response was YES. [2023-01-28 07:42:35,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 316 events. 115/316 cut-off events. For 130/131 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1219 event pairs, 101 based on Foata normal form. 31/346 useless extension candidates. Maximal degree in co-relation 816. Up to 269 conditions per place. [2023-01-28 07:42:35,664 INFO L137 encePairwiseOnDemand]: 216/222 looper letters, 30 selfloop transitions, 3 changer transitions 1/40 dead transitions. [2023-01-28 07:42:35,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 40 transitions, 215 flow [2023-01-28 07:42:35,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:42:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:42:35,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 484 transitions. [2023-01-28 07:42:35,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.545045045045045 [2023-01-28 07:42:35,666 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 484 transitions. [2023-01-28 07:42:35,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 484 transitions. [2023-01-28 07:42:35,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:42:35,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 484 transitions. [2023-01-28 07:42:35,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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 07:42:35,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 07:42:35,669 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 07:42:35,669 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 155 flow. Second operand 4 states and 484 transitions. [2023-01-28 07:42:35,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 40 transitions, 215 flow [2023-01-28 07:42:35,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 40 transitions, 211 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:42:35,670 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 148 flow [2023-01-28 07:42:35,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2023-01-28 07:42:35,671 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2023-01-28 07:42:35,671 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 148 flow [2023-01-28 07:42:35,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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 07:42:35,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:35,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:42:35,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 07:42:35,671 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:42:35,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:35,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1433294157, now seen corresponding path program 1 times [2023-01-28 07:42:35,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:35,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837208603] [2023-01-28 07:42:35,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:35,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:42:35,716 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 07:42:35,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:42:35,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837208603] [2023-01-28 07:42:35,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837208603] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:42:35,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:42:35,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:42:35,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617348368] [2023-01-28 07:42:35,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:42:35,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:42:35,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:42:35,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:42:35,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:42:35,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 222 [2023-01-28 07:42:35,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 07:42:35,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:42:35,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 222 [2023-01-28 07:42:35,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:42:35,779 INFO L130 PetriNetUnfolder]: 60/234 cut-off events. [2023-01-28 07:42:35,779 INFO L131 PetriNetUnfolder]: For 101/101 co-relation queries the response was YES. [2023-01-28 07:42:35,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 234 events. 60/234 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 905 event pairs, 24 based on Foata normal form. 42/276 useless extension candidates. Maximal degree in co-relation 650. Up to 122 conditions per place. [2023-01-28 07:42:35,780 INFO L137 encePairwiseOnDemand]: 204/222 looper letters, 28 selfloop transitions, 20 changer transitions 10/58 dead transitions. [2023-01-28 07:42:35,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 58 transitions, 349 flow [2023-01-28 07:42:35,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:42:35,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:42:35,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2023-01-28 07:42:35,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4984984984984985 [2023-01-28 07:42:35,781 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2023-01-28 07:42:35,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2023-01-28 07:42:35,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:42:35,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2023-01-28 07:42:35,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 07:42:35,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 07:42:35,784 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 07:42:35,784 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 148 flow. Second operand 3 states and 332 transitions. [2023-01-28 07:42:35,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 58 transitions, 349 flow [2023-01-28 07:42:35,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 58 transitions, 339 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-01-28 07:42:35,785 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 234 flow [2023-01-28 07:42:35,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2023-01-28 07:42:35,786 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2023-01-28 07:42:35,786 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 234 flow [2023-01-28 07:42:35,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 07:42:35,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:35,786 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] [2023-01-28 07:42:35,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 07:42:35,787 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:42:35,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:35,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1481555997, now seen corresponding path program 1 times [2023-01-28 07:42:35,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:35,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289679284] [2023-01-28 07:42:35,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:35,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:42:35,960 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 07:42:35,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:42:35,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289679284] [2023-01-28 07:42:35,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289679284] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:42:35,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:42:35,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 07:42:35,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893069061] [2023-01-28 07:42:35,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:42:35,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 07:42:35,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:42:35,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 07:42:35,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-01-28 07:42:35,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 222 [2023-01-28 07:42:35,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 234 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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 07:42:35,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:42:35,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 222 [2023-01-28 07:42:35,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:42:36,029 INFO L130 PetriNetUnfolder]: 48/198 cut-off events. [2023-01-28 07:42:36,029 INFO L131 PetriNetUnfolder]: For 173/173 co-relation queries the response was YES. [2023-01-28 07:42:36,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 198 events. 48/198 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 727 event pairs, 11 based on Foata normal form. 2/200 useless extension candidates. Maximal degree in co-relation 698. Up to 187 conditions per place. [2023-01-28 07:42:36,030 INFO L137 encePairwiseOnDemand]: 218/222 looper letters, 40 selfloop transitions, 4 changer transitions 5/49 dead transitions. [2023-01-28 07:42:36,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 367 flow [2023-01-28 07:42:36,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:42:36,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:42:36,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 357 transitions. [2023-01-28 07:42:36,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40202702702702703 [2023-01-28 07:42:36,031 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 357 transitions. [2023-01-28 07:42:36,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 357 transitions. [2023-01-28 07:42:36,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:42:36,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 357 transitions. [2023-01-28 07:42:36,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 07:42:36,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 07:42:36,034 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 07:42:36,034 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 234 flow. Second operand 4 states and 357 transitions. [2023-01-28 07:42:36,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 367 flow [2023-01-28 07:42:36,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 49 transitions, 338 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-01-28 07:42:36,035 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 192 flow [2023-01-28 07:42:36,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2023-01-28 07:42:36,036 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2023-01-28 07:42:36,036 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 192 flow [2023-01-28 07:42:36,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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 07:42:36,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:36,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:42:36,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 07:42:36,037 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:42:36,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:36,037 INFO L85 PathProgramCache]: Analyzing trace with hash -999921372, now seen corresponding path program 1 times [2023-01-28 07:42:36,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:36,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552747560] [2023-01-28 07:42:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:36,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:42:36,187 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 07:42:36,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:42:36,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552747560] [2023-01-28 07:42:36,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552747560] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:42:36,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:42:36,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 07:42:36,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410746609] [2023-01-28 07:42:36,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:42:36,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 07:42:36,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:42:36,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 07:42:36,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-01-28 07:42:36,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 222 [2023-01-28 07:42:36,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 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 07:42:36,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:42:36,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 222 [2023-01-28 07:42:36,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:42:36,234 INFO L130 PetriNetUnfolder]: 19/105 cut-off events. [2023-01-28 07:42:36,234 INFO L131 PetriNetUnfolder]: For 124/124 co-relation queries the response was YES. [2023-01-28 07:42:36,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 105 events. 19/105 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 253 event pairs, 2 based on Foata normal form. 12/117 useless extension candidates. Maximal degree in co-relation 349. Up to 70 conditions per place. [2023-01-28 07:42:36,235 INFO L137 encePairwiseOnDemand]: 218/222 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-01-28 07:42:36,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 41 transitions, 295 flow [2023-01-28 07:42:36,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:42:36,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:42:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2023-01-28 07:42:36,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39414414414414417 [2023-01-28 07:42:36,236 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 350 transitions. [2023-01-28 07:42:36,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 350 transitions. [2023-01-28 07:42:36,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:42:36,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 350 transitions. [2023-01-28 07:42:36,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:42:36,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 07:42:36,239 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 07:42:36,239 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 192 flow. Second operand 4 states and 350 transitions. [2023-01-28 07:42:36,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 41 transitions, 295 flow [2023-01-28 07:42:36,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 41 transitions, 279 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-01-28 07:42:36,240 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 188 flow [2023-01-28 07:42:36,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2023-01-28 07:42:36,242 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2023-01-28 07:42:36,242 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 188 flow [2023-01-28 07:42:36,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 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 07:42:36,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:36,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:42:36,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 07:42:36,243 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:42:36,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:36,243 INFO L85 PathProgramCache]: Analyzing trace with hash -496385228, now seen corresponding path program 1 times [2023-01-28 07:42:36,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:36,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707143632] [2023-01-28 07:42:36,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:36,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:42:36,403 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 07:42:36,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:42:36,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707143632] [2023-01-28 07:42:36,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707143632] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:42:36,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:42:36,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:42:36,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831002066] [2023-01-28 07:42:36,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:42:36,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:42:36,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:42:36,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:42:36,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 07:42:36,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 222 [2023-01-28 07:42:36,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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 07:42:36,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:42:36,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 222 [2023-01-28 07:42:36,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:42:36,442 INFO L130 PetriNetUnfolder]: 19/103 cut-off events. [2023-01-28 07:42:36,442 INFO L131 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2023-01-28 07:42:36,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 103 events. 19/103 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 251 event pairs, 8 based on Foata normal form. 2/105 useless extension candidates. Maximal degree in co-relation 330. Up to 77 conditions per place. [2023-01-28 07:42:36,443 INFO L137 encePairwiseOnDemand]: 218/222 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2023-01-28 07:42:36,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 40 transitions, 279 flow [2023-01-28 07:42:36,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:42:36,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:42:36,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 488 transitions. [2023-01-28 07:42:36,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5495495495495496 [2023-01-28 07:42:36,444 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 488 transitions. [2023-01-28 07:42:36,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 488 transitions. [2023-01-28 07:42:36,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:42:36,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 488 transitions. [2023-01-28 07:42:36,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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 07:42:36,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 07:42:36,447 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 07:42:36,447 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 188 flow. Second operand 4 states and 488 transitions. [2023-01-28 07:42:36,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 40 transitions, 279 flow [2023-01-28 07:42:36,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 269 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 07:42:36,448 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-01-28 07:42:36,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-01-28 07:42:36,449 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2023-01-28 07:42:36,450 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-01-28 07:42:36,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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 07:42:36,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 07:42:36,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-28 07:42:36,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-01-28 07:42:36,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-01-28 07:42:36,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-01-28 07:42:36,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 07:42:36,455 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:42:36,457 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:42:36,457 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:42:36,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:42:36 BasicIcfg [2023-01-28 07:42:36,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:42:36,459 INFO L158 Benchmark]: Toolchain (without parser) took 5375.59ms. Allocated memory was 637.5MB in the beginning and 765.5MB in the end (delta: 127.9MB). Free memory was 596.6MB in the beginning and 706.0MB in the end (delta: -109.4MB). Peak memory consumption was 20.1MB. Max. memory is 16.0GB. [2023-01-28 07:42:36,459 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 383.8MB. Free memory is still 332.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:42:36,460 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.04ms. Allocated memory is still 637.5MB. Free memory was 596.6MB in the beginning and 576.8MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-28 07:42:36,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.68ms. Allocated memory is still 637.5MB. Free memory was 576.8MB in the beginning and 574.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:42:36,460 INFO L158 Benchmark]: Boogie Preprocessor took 30.49ms. Allocated memory is still 637.5MB. Free memory was 574.7MB in the beginning and 573.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:42:36,460 INFO L158 Benchmark]: RCFGBuilder took 486.51ms. Allocated memory is still 637.5MB. Free memory was 573.2MB in the beginning and 556.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-01-28 07:42:36,460 INFO L158 Benchmark]: TraceAbstraction took 4533.04ms. Allocated memory was 637.5MB in the beginning and 765.5MB in the end (delta: 127.9MB). Free memory was 556.4MB in the beginning and 706.0MB in the end (delta: -149.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:42:36,462 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 383.8MB. Free memory is still 332.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 291.04ms. Allocated memory is still 637.5MB. Free memory was 596.6MB in the beginning and 576.8MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 30.68ms. Allocated memory is still 637.5MB. Free memory was 576.8MB in the beginning and 574.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.49ms. Allocated memory is still 637.5MB. Free memory was 574.7MB in the beginning and 573.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 486.51ms. Allocated memory is still 637.5MB. Free memory was 573.2MB in the beginning and 556.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 4533.04ms. Allocated memory was 637.5MB in the beginning and 765.5MB in the end (delta: 127.9MB). Free memory was 556.4MB in the beginning and 706.0MB in the end (delta: -149.6MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 118 PlacesBefore, 41 PlacesAfterwards, 117 TransitionsBefore, 39 TransitionsAfterwards, 3102 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 9364 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3027, independent: 2652, independent conditional: 0, independent unconditional: 2652, dependent: 375, dependent conditional: 0, dependent unconditional: 375, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1570, independent: 1493, independent conditional: 0, independent unconditional: 1493, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3027, independent: 1159, independent conditional: 0, independent unconditional: 1159, dependent: 298, dependent conditional: 0, dependent unconditional: 298, unknown: 1570, unknown conditional: 0, unknown unconditional: 1570] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 93, Positive conditional cache size: 0, Positive unconditional cache size: 93, Negative cache size: 45, Negative conditional cache size: 0, Negative unconditional cache size: 45, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 163 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 548 IncrementalHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 6 mSDtfsCounter, 548 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=6, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 07:42:36,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...