/usr/bin/java -Xmx8000000000 -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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:46:09,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:46:09,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:46:09,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:46:09,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:46:09,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:46:09,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:46:09,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:46:09,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:46:09,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:46:09,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:46:09,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:46:09,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:46:09,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:46:09,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:46:09,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:46:09,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:46:09,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:46:09,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:46:09,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:46:09,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:46:09,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:46:09,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:46:09,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:46:09,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:46:09,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:46:09,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:46:09,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:46:09,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:46:09,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:46:09,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:46:09,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:46:09,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:46:09,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:46:09,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:46:09,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:46:09,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:46:09,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:46:09,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:46:09,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:46:09,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:46:09,392 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-SemanticLbe.epf [2022-12-05 20:46:09,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:46:09,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:46:09,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:46:09,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:46:09,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:46:09,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:46:09,420 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:46:09,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:46:09,420 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:46:09,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:46:09,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:46:09,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:46:09,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:46:09,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:46:09,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:46:09,421 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:46:09,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:46:09,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:46:09,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:46:09,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:46:09,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:46:09,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:46:09,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:46:09,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:46:09,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:46:09,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:46:09,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:46:09,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:46:09,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:46:09,423 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:46:09,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:46:09,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:46:09,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:46:09,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:46:09,685 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:46:09,687 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:46:09,688 INFO L432 ainManager$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 [2022-12-05 20:46:10,569 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:46:10,824 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:46:10,825 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2022-12-05 20:46:10,836 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbb97ad5/595f24262573429daf8f0fcad5e82ea4/FLAGa92a868cf [2022-12-05 20:46:10,845 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbb97ad5/595f24262573429daf8f0fcad5e82ea4 [2022-12-05 20:46:10,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:46:10,848 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:46:10,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:46:10,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:46:10,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:46:10,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:46:10" (1/1) ... [2022-12-05 20:46:10,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c40d6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:10, skipping insertion in model container [2022-12-05 20:46:10,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:46:10" (1/1) ... [2022-12-05 20:46:10,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:46:10,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:46:11,020 WARN L237 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] [2022-12-05 20:46:11,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:46:11,161 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:46:11,172 WARN L237 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] [2022-12-05 20:46:11,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:46:11,218 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:46:11,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11 WrapperNode [2022-12-05 20:46:11,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:46:11,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:46:11,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:46:11,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:46:11,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (1/1) ... [2022-12-05 20:46:11,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (1/1) ... [2022-12-05 20:46:11,262 INFO L138 Inliner]: procedures = 162, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2022-12-05 20:46:11,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:46:11,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:46:11,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:46:11,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:46:11,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (1/1) ... [2022-12-05 20:46:11,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (1/1) ... [2022-12-05 20:46:11,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (1/1) ... [2022-12-05 20:46:11,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (1/1) ... [2022-12-05 20:46:11,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (1/1) ... [2022-12-05 20:46:11,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (1/1) ... [2022-12-05 20:46:11,289 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (1/1) ... [2022-12-05 20:46:11,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (1/1) ... [2022-12-05 20:46:11,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:46:11,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:46:11,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:46:11,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:46:11,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (1/1) ... [2022-12-05 20:46:11,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:46:11,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:46:11,321 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) [2022-12-05 20:46:11,330 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 [2022-12-05 20:46:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:46:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:46:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:46:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:46:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:46:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 20:46:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 20:46:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:46:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:46:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:46:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:46:11,346 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:46:11,452 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:46:11,454 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:46:11,679 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:46:11,688 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:46:11,688 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:46:11,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:46:11 BoogieIcfgContainer [2022-12-05 20:46:11,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:46:11,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:46:11,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:46:11,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:46:11,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:46:10" (1/3) ... [2022-12-05 20:46:11,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8ce8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:46:11, skipping insertion in model container [2022-12-05 20:46:11,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:11" (2/3) ... [2022-12-05 20:46:11,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8ce8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:46:11, skipping insertion in model container [2022-12-05 20:46:11,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:46:11" (3/3) ... [2022-12-05 20:46:11,695 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2022-12-05 20:46:11,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:46:11,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-05 20:46:11,709 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:46:11,812 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 20:46:11,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 131 transitions, 270 flow [2022-12-05 20:46:11,907 INFO L130 PetriNetUnfolder]: 4/130 cut-off events. [2022-12-05 20:46:11,907 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:46:11,911 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. [2022-12-05 20:46:11,912 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 131 transitions, 270 flow [2022-12-05 20:46:11,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 117 transitions, 237 flow [2022-12-05 20:46:11,918 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:46:11,940 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 117 transitions, 237 flow [2022-12-05 20:46:11,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 117 transitions, 237 flow [2022-12-05 20:46:11,974 INFO L130 PetriNetUnfolder]: 3/117 cut-off events. [2022-12-05 20:46:11,974 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:11,975 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. [2022-12-05 20:46:11,978 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 117 transitions, 237 flow [2022-12-05 20:46:11,978 INFO L188 LiptonReduction]: Number of co-enabled transitions 3102 [2022-12-05 20:46:15,205 INFO L203 LiptonReduction]: Total number of compositions: 92 [2022-12-05 20:46:15,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:46:15,219 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;@1444b83a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:46:15,220 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 20:46:15,222 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-05 20:46:15,222 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:15,227 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:15,228 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-05 20:46:15,228 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 20:46:15,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:15,232 INFO L85 PathProgramCache]: Analyzing trace with hash 421712190, now seen corresponding path program 1 times [2022-12-05 20:46:15,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:15,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151671277] [2022-12-05 20:46:15,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:15,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:15,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:15,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151671277] [2022-12-05 20:46:15,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151671277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:15,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:15,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:46:15,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325021564] [2022-12-05 20:46:15,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:15,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:46:15,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:15,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:46:15,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:46:15,373 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2022-12-05 20:46:15,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 41 transitions, 85 flow. Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2022-12-05 20:46:15,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:15,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2022-12-05 20:46:15,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:15,476 INFO L130 PetriNetUnfolder]: 196/487 cut-off events. [2022-12-05 20:46:15,476 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:15,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 914 conditions, 487 events. 196/487 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2228 event pairs, 196 based on Foata normal form. 15/437 useless extension candidates. Maximal degree in co-relation 905. Up to 423 conditions per place. [2022-12-05 20:46:15,484 INFO L137 encePairwiseOnDemand]: 38/41 looper letters, 30 selfloop transitions, 0 changer transitions 0/38 dead transitions. [2022-12-05 20:46:15,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 139 flow [2022-12-05 20:46:15,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:46:15,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:46:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 49 transitions. [2022-12-05 20:46:15,492 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5975609756097561 [2022-12-05 20:46:15,493 INFO L175 Difference]: Start difference. First operand has 42 places, 41 transitions, 85 flow. Second operand 2 states and 49 transitions. [2022-12-05 20:46:15,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 139 flow [2022-12-05 20:46:15,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 38 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:46:15,497 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 78 flow [2022-12-05 20:46:15,499 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=78, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2022-12-05 20:46:15,501 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 0 predicate places. [2022-12-05 20:46:15,502 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 78 flow [2022-12-05 20:46:15,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2022-12-05 20:46:15,502 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:15,502 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-05 20:46:15,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:46:15,503 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)] === [2022-12-05 20:46:15,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:15,509 INFO L85 PathProgramCache]: Analyzing trace with hash 421712025, now seen corresponding path program 1 times [2022-12-05 20:46:15,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:15,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604126551] [2022-12-05 20:46:15,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:15,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:15,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:15,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604126551] [2022-12-05 20:46:15,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604126551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:15,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:15,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:46:15,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504000727] [2022-12-05 20:46:15,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:15,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:46:15,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:15,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:46:15,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:46:15,663 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2022-12-05 20:46:15,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-05 20:46:15,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:15,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2022-12-05 20:46:15,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:15,753 INFO L130 PetriNetUnfolder]: 184/463 cut-off events. [2022-12-05 20:46:15,754 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:15,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 866 conditions, 463 events. 184/463 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2101 event pairs, 63 based on Foata normal form. 4/417 useless extension candidates. Maximal degree in co-relation 863. Up to 317 conditions per place. [2022-12-05 20:46:15,758 INFO L137 encePairwiseOnDemand]: 36/41 looper letters, 39 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2022-12-05 20:46:15,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 182 flow [2022-12-05 20:46:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:46:15,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:46:15,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2022-12-05 20:46:15,764 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5528455284552846 [2022-12-05 20:46:15,764 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 78 flow. Second operand 3 states and 68 transitions. [2022-12-05 20:46:15,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 182 flow [2022-12-05 20:46:15,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 49 transitions, 182 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:46:15,766 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 90 flow [2022-12-05 20:46:15,766 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2022-12-05 20:46:15,767 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2022-12-05 20:46:15,767 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 90 flow [2022-12-05 20:46:15,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-05 20:46:15,767 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:15,767 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:15,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:46:15,767 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)] === [2022-12-05 20:46:15,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:15,769 INFO L85 PathProgramCache]: Analyzing trace with hash 372971704, now seen corresponding path program 1 times [2022-12-05 20:46:15,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:15,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081071596] [2022-12-05 20:46:15,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:15,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:15,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:15,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:15,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081071596] [2022-12-05 20:46:15,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081071596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:15,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:15,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:46:15,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846396683] [2022-12-05 20:46:15,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:15,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:46:15,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:15,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:46:15,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:46:15,869 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 41 [2022-12-05 20:46:15,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-05 20:46:15,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:15,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 41 [2022-12-05 20:46:15,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:15,982 INFO L130 PetriNetUnfolder]: 332/724 cut-off events. [2022-12-05 20:46:15,982 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-12-05 20:46:15,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 724 events. 332/724 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3392 event pairs, 154 based on Foata normal form. 7/674 useless extension candidates. Maximal degree in co-relation 1544. Up to 555 conditions per place. [2022-12-05 20:46:15,985 INFO L137 encePairwiseOnDemand]: 28/41 looper letters, 56 selfloop transitions, 13 changer transitions 0/70 dead transitions. [2022-12-05 20:46:15,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 70 transitions, 301 flow [2022-12-05 20:46:15,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:46:15,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:46:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2022-12-05 20:46:15,988 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6097560975609756 [2022-12-05 20:46:15,988 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 90 flow. Second operand 3 states and 75 transitions. [2022-12-05 20:46:15,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 70 transitions, 301 flow [2022-12-05 20:46:15,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 70 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:46:15,992 INFO L231 Difference]: Finished difference. Result has 46 places, 48 transitions, 165 flow [2022-12-05 20:46:15,992 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=46, PETRI_TRANSITIONS=48} [2022-12-05 20:46:15,993 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2022-12-05 20:46:15,993 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 48 transitions, 165 flow [2022-12-05 20:46:15,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-05 20:46:15,993 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:15,993 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:15,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:46:15,993 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 20:46:15,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:15,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1788275200, now seen corresponding path program 1 times [2022-12-05 20:46:15,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:15,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221008867] [2022-12-05 20:46:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:15,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:16,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:16,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221008867] [2022-12-05 20:46:16,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221008867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:16,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:16,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:46:16,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435074383] [2022-12-05 20:46:16,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:16,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:46:16,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:16,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:46:16,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:46:16,105 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 41 [2022-12-05 20:46:16,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 48 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-12-05 20:46:16,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:16,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 41 [2022-12-05 20:46:16,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:16,194 INFO L130 PetriNetUnfolder]: 184/440 cut-off events. [2022-12-05 20:46:16,194 INFO L131 PetriNetUnfolder]: For 104/104 co-relation queries the response was YES. [2022-12-05 20:46:16,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 440 events. 184/440 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1978 event pairs, 36 based on Foata normal form. 13/420 useless extension candidates. Maximal degree in co-relation 1095. Up to 333 conditions per place. [2022-12-05 20:46:16,196 INFO L137 encePairwiseOnDemand]: 34/41 looper letters, 58 selfloop transitions, 7 changer transitions 1/67 dead transitions. [2022-12-05 20:46:16,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 67 transitions, 338 flow [2022-12-05 20:46:16,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:46:16,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:46:16,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2022-12-05 20:46:16,197 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.42073170731707316 [2022-12-05 20:46:16,197 INFO L175 Difference]: Start difference. First operand has 46 places, 48 transitions, 165 flow. Second operand 4 states and 69 transitions. [2022-12-05 20:46:16,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 67 transitions, 338 flow [2022-12-05 20:46:16,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 67 transitions, 326 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-05 20:46:16,200 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 152 flow [2022-12-05 20:46:16,200 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2022-12-05 20:46:16,200 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2022-12-05 20:46:16,200 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 152 flow [2022-12-05 20:46:16,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-12-05 20:46:16,201 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:16,201 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:16,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:46:16,201 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 20:46:16,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:16,201 INFO L85 PathProgramCache]: Analyzing trace with hash -931168833, now seen corresponding path program 1 times [2022-12-05 20:46:16,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:16,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70245245] [2022-12-05 20:46:16,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:16,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:16,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:16,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:16,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70245245] [2022-12-05 20:46:16,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70245245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:16,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:16,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:46:16,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905621780] [2022-12-05 20:46:16,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:16,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:46:16,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:16,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:46:16,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:46:16,239 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2022-12-05 20:46:16,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-12-05 20:46:16,239 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:16,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2022-12-05 20:46:16,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:16,292 INFO L130 PetriNetUnfolder]: 124/331 cut-off events. [2022-12-05 20:46:16,292 INFO L131 PetriNetUnfolder]: For 107/107 co-relation queries the response was YES. [2022-12-05 20:46:16,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 854 conditions, 331 events. 124/331 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1409 event pairs, 46 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 847. Up to 198 conditions per place. [2022-12-05 20:46:16,294 INFO L137 encePairwiseOnDemand]: 38/41 looper letters, 44 selfloop transitions, 2 changer transitions 1/56 dead transitions. [2022-12-05 20:46:16,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 287 flow [2022-12-05 20:46:16,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:46:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:46:16,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2022-12-05 20:46:16,295 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5447154471544715 [2022-12-05 20:46:16,295 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 152 flow. Second operand 3 states and 67 transitions. [2022-12-05 20:46:16,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 287 flow [2022-12-05 20:46:16,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:46:16,297 INFO L231 Difference]: Finished difference. Result has 50 places, 42 transitions, 157 flow [2022-12-05 20:46:16,297 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=50, PETRI_TRANSITIONS=42} [2022-12-05 20:46:16,297 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2022-12-05 20:46:16,297 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 42 transitions, 157 flow [2022-12-05 20:46:16,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-12-05 20:46:16,298 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:16,298 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:16,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:46:16,298 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 20:46:16,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash 549560844, now seen corresponding path program 1 times [2022-12-05 20:46:16,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:16,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36866082] [2022-12-05 20:46:16,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:16,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:16,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:16,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:16,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36866082] [2022-12-05 20:46:16,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36866082] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:16,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:16,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:46:16,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828952287] [2022-12-05 20:46:16,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:16,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:46:16,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:16,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:46:16,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:46:16,367 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2022-12-05 20:46:16,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2022-12-05 20:46:16,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:16,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2022-12-05 20:46:16,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:16,426 INFO L130 PetriNetUnfolder]: 97/281 cut-off events. [2022-12-05 20:46:16,427 INFO L131 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2022-12-05 20:46:16,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 281 events. 97/281 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1120 event pairs, 85 based on Foata normal form. 31/311 useless extension candidates. Maximal degree in co-relation 738. Up to 238 conditions per place. [2022-12-05 20:46:16,428 INFO L137 encePairwiseOnDemand]: 34/41 looper letters, 27 selfloop transitions, 4 changer transitions 1/40 dead transitions. [2022-12-05 20:46:16,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 40 transitions, 211 flow [2022-12-05 20:46:16,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:46:16,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:46:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2022-12-05 20:46:16,429 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.34146341463414637 [2022-12-05 20:46:16,429 INFO L175 Difference]: Start difference. First operand has 50 places, 42 transitions, 157 flow. Second operand 5 states and 70 transitions. [2022-12-05 20:46:16,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 40 transitions, 211 flow [2022-12-05 20:46:16,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 40 transitions, 207 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:46:16,430 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 152 flow [2022-12-05 20:46:16,430 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2022-12-05 20:46:16,430 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2022-12-05 20:46:16,431 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 152 flow [2022-12-05 20:46:16,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2022-12-05 20:46:16,431 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:16,431 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:16,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:46:16,431 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)] === [2022-12-05 20:46:16,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:16,431 INFO L85 PathProgramCache]: Analyzing trace with hash -608464754, now seen corresponding path program 1 times [2022-12-05 20:46:16,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:16,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186900095] [2022-12-05 20:46:16,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:16,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:16,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:16,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186900095] [2022-12-05 20:46:16,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186900095] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:16,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:16,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:46:16,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573779639] [2022-12-05 20:46:16,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:16,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:46:16,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:16,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:46:16,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:46:16,504 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 41 [2022-12-05 20:46:16,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-12-05 20:46:16,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:16,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 41 [2022-12-05 20:46:16,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:16,565 INFO L130 PetriNetUnfolder]: 73/262 cut-off events. [2022-12-05 20:46:16,565 INFO L131 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2022-12-05 20:46:16,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 262 events. 73/262 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1070 event pairs, 30 based on Foata normal form. 42/289 useless extension candidates. Maximal degree in co-relation 724. Up to 136 conditions per place. [2022-12-05 20:46:16,566 INFO L137 encePairwiseOnDemand]: 23/41 looper letters, 28 selfloop transitions, 20 changer transitions 12/60 dead transitions. [2022-12-05 20:46:16,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 60 transitions, 359 flow [2022-12-05 20:46:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:46:16,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:46:16,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2022-12-05 20:46:16,567 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5203252032520326 [2022-12-05 20:46:16,567 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 152 flow. Second operand 3 states and 64 transitions. [2022-12-05 20:46:16,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 60 transitions, 359 flow [2022-12-05 20:46:16,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 60 transitions, 351 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 20:46:16,569 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 238 flow [2022-12-05 20:46:16,569 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2022-12-05 20:46:16,569 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2022-12-05 20:46:16,569 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 238 flow [2022-12-05 20:46:16,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-12-05 20:46:16,569 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:16,569 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:16,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:46:16,570 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 20:46:16,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:16,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1682483030, now seen corresponding path program 1 times [2022-12-05 20:46:16,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:16,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509715226] [2022-12-05 20:46:16,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:16,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:16,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:16,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:16,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509715226] [2022-12-05 20:46:16,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509715226] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:16,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:16,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:46:16,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419623599] [2022-12-05 20:46:16,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:16,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:46:16,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:16,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:46:16,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:46:16,720 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 41 [2022-12-05 20:46:16,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 238 flow. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-12-05 20:46:16,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:16,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 41 [2022-12-05 20:46:16,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:16,771 INFO L130 PetriNetUnfolder]: 48/198 cut-off events. [2022-12-05 20:46:16,772 INFO L131 PetriNetUnfolder]: For 173/173 co-relation queries the response was YES. [2022-12-05 20:46:16,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 716 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 724 event pairs, 11 based on Foata normal form. 2/200 useless extension candidates. Maximal degree in co-relation 706. Up to 187 conditions per place. [2022-12-05 20:46:16,772 INFO L137 encePairwiseOnDemand]: 37/41 looper letters, 40 selfloop transitions, 4 changer transitions 5/49 dead transitions. [2022-12-05 20:46:16,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 49 transitions, 369 flow [2022-12-05 20:46:16,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:46:16,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:46:16,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2022-12-05 20:46:16,773 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.27439024390243905 [2022-12-05 20:46:16,773 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 238 flow. Second operand 4 states and 45 transitions. [2022-12-05 20:46:16,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 49 transitions, 369 flow [2022-12-05 20:46:16,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 338 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-05 20:46:16,775 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 192 flow [2022-12-05 20:46:16,775 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=44, 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=47, PETRI_TRANSITIONS=37} [2022-12-05 20:46:16,775 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2022-12-05 20:46:16,775 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 192 flow [2022-12-05 20:46:16,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-12-05 20:46:16,776 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:16,776 INFO L213 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] [2022-12-05 20:46:16,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 20:46:16,776 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)] === [2022-12-05 20:46:16,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:16,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1705718, now seen corresponding path program 1 times [2022-12-05 20:46:16,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:16,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112104159] [2022-12-05 20:46:16,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:16,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:16,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:16,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:16,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112104159] [2022-12-05 20:46:16,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112104159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:16,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:16,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:46:16,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615853911] [2022-12-05 20:46:16,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:16,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:46:16,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:16,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:46:16,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:46:16,917 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 41 [2022-12-05 20:46:16,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2022-12-05 20:46:16,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:16,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 41 [2022-12-05 20:46:16,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:16,968 INFO L130 PetriNetUnfolder]: 19/105 cut-off events. [2022-12-05 20:46:16,968 INFO L131 PetriNetUnfolder]: For 124/124 co-relation queries the response was YES. [2022-12-05 20:46:16,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 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 357. Up to 70 conditions per place. [2022-12-05 20:46:16,968 INFO L137 encePairwiseOnDemand]: 37/41 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2022-12-05 20:46:16,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 41 transitions, 295 flow [2022-12-05 20:46:16,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:46:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:46:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-12-05 20:46:16,969 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.23170731707317074 [2022-12-05 20:46:16,969 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 192 flow. Second operand 4 states and 38 transitions. [2022-12-05 20:46:16,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 41 transitions, 295 flow [2022-12-05 20:46:16,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 41 transitions, 279 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-05 20:46:16,971 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 188 flow [2022-12-05 20:46:16,971 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=40, 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=43, PETRI_TRANSITIONS=36} [2022-12-05 20:46:16,972 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2022-12-05 20:46:16,972 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 188 flow [2022-12-05 20:46:16,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2022-12-05 20:46:16,972 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:16,972 INFO L213 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] [2022-12-05 20:46:16,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 20:46:16,972 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 20:46:16,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:16,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1865901816, now seen corresponding path program 1 times [2022-12-05 20:46:16,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:16,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448951112] [2022-12-05 20:46:16,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:16,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:17,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:17,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448951112] [2022-12-05 20:46:17,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448951112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:17,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:17,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:46:17,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719206353] [2022-12-05 20:46:17,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:17,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:46:17,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:17,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:46:17,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:46:17,107 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2022-12-05 20:46:17,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-12-05 20:46:17,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:17,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2022-12-05 20:46:17,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:17,146 INFO L130 PetriNetUnfolder]: 15/95 cut-off events. [2022-12-05 20:46:17,146 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-12-05 20:46:17,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 95 events. 15/95 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 231 event pairs, 4 based on Foata normal form. 2/96 useless extension candidates. Maximal degree in co-relation 310. Up to 69 conditions per place. [2022-12-05 20:46:17,146 INFO L137 encePairwiseOnDemand]: 37/41 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2022-12-05 20:46:17,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 277 flow [2022-12-05 20:46:17,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:46:17,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:46:17,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 59 transitions. [2022-12-05 20:46:17,147 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3597560975609756 [2022-12-05 20:46:17,147 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 188 flow. Second operand 4 states and 59 transitions. [2022-12-05 20:46:17,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 277 flow [2022-12-05 20:46:17,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 267 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:46:17,148 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2022-12-05 20:46:17,148 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=39, 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=42, PETRI_TRANSITIONS=0} [2022-12-05 20:46:17,149 INFO L294 CegarLoopForPetriNet]: 42 programPoint places, 0 predicate places. [2022-12-05 20:46:17,149 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2022-12-05 20:46:17,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-12-05 20:46:17,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 20:46:17,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-05 20:46:17,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-12-05 20:46:17,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-12-05 20:46:17,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-05 20:46:17,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 20:46:17,152 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:17,154 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:46:17,154 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:46:17,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:46:17 BasicIcfg [2022-12-05 20:46:17,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:46:17,156 INFO L158 Benchmark]: Toolchain (without parser) took 6308.53ms. Allocated memory was 237.0MB in the beginning and 414.2MB in the end (delta: 177.2MB). Free memory was 210.9MB in the beginning and 349.5MB in the end (delta: -138.6MB). Peak memory consumption was 38.9MB. Max. memory is 8.0GB. [2022-12-05 20:46:17,156 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 237.0MB. Free memory is still 213.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:46:17,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.54ms. Allocated memory is still 237.0MB. Free memory was 210.6MB in the beginning and 190.9MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-05 20:46:17,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.61ms. Allocated memory is still 237.0MB. Free memory was 190.9MB in the beginning and 188.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:46:17,157 INFO L158 Benchmark]: Boogie Preprocessor took 28.91ms. Allocated memory is still 237.0MB. Free memory was 188.8MB in the beginning and 187.2MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:46:17,157 INFO L158 Benchmark]: RCFGBuilder took 398.07ms. Allocated memory is still 237.0MB. Free memory was 187.2MB in the beginning and 171.3MB in the end (delta: 15.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-05 20:46:17,157 INFO L158 Benchmark]: TraceAbstraction took 5464.36ms. Allocated memory was 237.0MB in the beginning and 414.2MB in the end (delta: 177.2MB). Free memory was 170.4MB in the beginning and 349.5MB in the end (delta: -179.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:46:17,158 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 237.0MB. Free memory is still 213.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 371.54ms. Allocated memory is still 237.0MB. Free memory was 210.6MB in the beginning and 190.9MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.61ms. Allocated memory is still 237.0MB. Free memory was 190.9MB in the beginning and 188.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.91ms. Allocated memory is still 237.0MB. Free memory was 188.8MB in the beginning and 187.2MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 398.07ms. Allocated memory is still 237.0MB. Free memory was 187.2MB in the beginning and 171.3MB in the end (delta: 15.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5464.36ms. Allocated memory was 237.0MB in the beginning and 414.2MB in the end (delta: 177.2MB). Free memory was 170.4MB in the beginning and 349.5MB in the end (delta: -179.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 118 PlacesBefore, 42 PlacesAfterwards, 117 TransitionsBefore, 41 TransitionsAfterwards, 3102 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 35 TrivialYvCompositions, 44 ConcurrentYvCompositions, 0 ChoiceCompositions, 92 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2922, independent: 2659, independent conditional: 2659, independent unconditional: 0, dependent: 263, dependent conditional: 263, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2922, independent: 2659, independent conditional: 0, independent unconditional: 2659, dependent: 263, dependent conditional: 0, dependent unconditional: 263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2922, independent: 2659, independent conditional: 0, independent unconditional: 2659, dependent: 263, dependent conditional: 0, dependent unconditional: 263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2922, independent: 2659, independent conditional: 0, independent unconditional: 2659, dependent: 263, dependent conditional: 0, dependent unconditional: 263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2030, independent: 1946, independent conditional: 0, independent unconditional: 1946, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2030, independent: 1751, independent conditional: 0, independent unconditional: 1751, dependent: 279, dependent conditional: 0, dependent unconditional: 279, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 279, independent: 195, independent conditional: 0, independent unconditional: 195, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 258, independent: 119, independent conditional: 0, independent unconditional: 119, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2922, independent: 713, independent conditional: 0, independent unconditional: 713, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 2030, unknown conditional: 0, unknown unconditional: 2030] , Statistics on independence cache: Total cache size (in pairs): 3012, Positive cache size: 2928, Positive conditional cache size: 0, Positive unconditional cache size: 2928, Negative cache size: 84, Negative conditional cache size: 0, Negative unconditional cache size: 84, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - 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: 5.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 623 IncrementalHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 12 mSDtfsCounter, 623 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=238occurred in iteration=7, InterpolantAutomatonStates: 35, 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, 0.8s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 781 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2022-12-05 20:46:17,172 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...