/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_20-publish-regression_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:46:06,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:46:06,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:46:06,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:46:06,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:46:06,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:46:06,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:46:06,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:46:06,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:46:06,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:46:06,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:46:06,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:46:06,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:46:06,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:46:06,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:46:06,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:46:06,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:46:06,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:46:06,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:46:06,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:46:06,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:46:06,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:46:06,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:46:06,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:46:06,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:46:06,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:46:06,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:46:06,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:46:06,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:46:06,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:46:06,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:46:06,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:46:06,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:46:06,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:46:06,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:46:06,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:46:06,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:46:06,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:46:06,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:46:06,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:46:06,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:46:06,300 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 20:46:06,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:46:06,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:46:06,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:46:06,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:46:06,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:46:06,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:46:06,328 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:46:06,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:46:06,328 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:46:06,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:46:06,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:46:06,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:46:06,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:46:06,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:46:06,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:46:06,330 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:46:06,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:46:06,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:46:06,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:46:06,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:46:06,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:46:06,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:46:06,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:46:06,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:46:06,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:46:06,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:46:06,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:46:06,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:46:06,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:46:06,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:46:06,331 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:46:06,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:46:06,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:46:06,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:46:06,586 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:46:06,587 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:46:06,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2022-12-05 20:46:07,803 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:46:08,053 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:46:08,054 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2022-12-05 20:46:08,085 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c972d1ed/3554115fca75443fa1c073e44a5d7bf4/FLAG8d1fc8583 [2022-12-05 20:46:08,098 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c972d1ed/3554115fca75443fa1c073e44a5d7bf4 [2022-12-05 20:46:08,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:46:08,100 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:46:08,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:46:08,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:46:08,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:46:08,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20fe8021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08, skipping insertion in model container [2022-12-05 20:46:08,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:46:08,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:46:08,267 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_20-publish-regression_true.i[1095,1108] [2022-12-05 20:46:08,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:46:08,373 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:46:08,383 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_20-publish-regression_true.i[1095,1108] [2022-12-05 20:46:08,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:46:08,449 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:46:08,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08 WrapperNode [2022-12-05 20:46:08,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:46:08,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:46:08,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:46:08,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:46:08,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,490 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2022-12-05 20:46:08,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:46:08,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:46:08,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:46:08,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:46:08,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,526 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:46:08,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:46:08,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:46:08,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:46:08,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (1/1) ... [2022-12-05 20:46:08,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:46:08,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:46:08,563 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 20:46:08,580 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 20:46:08,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:46:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:46:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:46:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:46:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:46:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 20:46:08,597 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 20:46:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:46:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:46:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:46:08,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:46:08,602 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 20:46:08,690 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:46:08,691 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:46:08,854 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:46:08,859 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:46:08,859 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:46:08,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:46:08 BoogieIcfgContainer [2022-12-05 20:46:08,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:46:08,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:46:08,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:46:08,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:46:08,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:46:08" (1/3) ... [2022-12-05 20:46:08,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d93a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:46:08, skipping insertion in model container [2022-12-05 20:46:08,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:08" (2/3) ... [2022-12-05 20:46:08,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d93a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:46:08, skipping insertion in model container [2022-12-05 20:46:08,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:46:08" (3/3) ... [2022-12-05 20:46:08,866 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i [2022-12-05 20:46:08,892 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:46:08,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-05 20:46:08,893 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:46:08,959 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 20:46:08,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 81 transitions, 170 flow [2022-12-05 20:46:09,037 INFO L130 PetriNetUnfolder]: 3/80 cut-off events. [2022-12-05 20:46:09,038 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:46:09,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 80 events. 3/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2022-12-05 20:46:09,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 81 transitions, 170 flow [2022-12-05 20:46:09,046 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 73 transitions, 149 flow [2022-12-05 20:46:09,047 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:46:09,062 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 73 transitions, 149 flow [2022-12-05 20:46:09,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 73 transitions, 149 flow [2022-12-05 20:46:09,093 INFO L130 PetriNetUnfolder]: 3/73 cut-off events. [2022-12-05 20:46:09,093 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:09,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 3/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2022-12-05 20:46:09,096 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 73 transitions, 149 flow [2022-12-05 20:46:09,096 INFO L188 LiptonReduction]: Number of co-enabled transitions 616 [2022-12-05 20:46:11,570 INFO L203 LiptonReduction]: Total number of compositions: 64 [2022-12-05 20:46:11,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:46:11,584 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;@154ea89d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:46:11,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 20:46:11,585 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-05 20:46:11,585 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:11,585 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:11,585 INFO L213 CegarLoopForPetriNet]: trace histogram [1] [2022-12-05 20:46:11,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:46:11,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:11,589 INFO L85 PathProgramCache]: Analyzing trace with hash 313, now seen corresponding path program 1 times [2022-12-05 20:46:11,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:11,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77790177] [2022-12-05 20:46:11,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:11,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:11,658 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 20:46:11,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:11,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77790177] [2022-12-05 20:46:11,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77790177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:11,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:11,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-05 20:46:11,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586828802] [2022-12-05 20:46:11,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:11,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:46:11,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:11,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:46:11,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:46:11,680 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 22 [2022-12-05 20:46:11,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 22 transitions, 47 flow. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 20:46:11,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:11,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 22 [2022-12-05 20:46:11,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:11,705 INFO L130 PetriNetUnfolder]: 30/90 cut-off events. [2022-12-05 20:46:11,705 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:11,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 90 events. 30/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 279 event pairs, 30 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 159. Up to 74 conditions per place. [2022-12-05 20:46:11,706 INFO L137 encePairwiseOnDemand]: 17/22 looper letters, 13 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2022-12-05 20:46:11,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 17 transitions, 63 flow [2022-12-05 20:46:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:46:11,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:46:11,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 26 transitions. [2022-12-05 20:46:11,714 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2022-12-05 20:46:11,715 INFO L175 Difference]: Start difference. First operand has 24 places, 22 transitions, 47 flow. Second operand 2 states and 26 transitions. [2022-12-05 20:46:11,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 17 transitions, 63 flow [2022-12-05 20:46:11,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 62 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:46:11,717 INFO L231 Difference]: Finished difference. Result has 21 places, 17 transitions, 36 flow [2022-12-05 20:46:11,718 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=36, PETRI_PLACES=21, PETRI_TRANSITIONS=17} [2022-12-05 20:46:11,720 INFO L294 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2022-12-05 20:46:11,720 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 17 transitions, 36 flow [2022-12-05 20:46:11,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 20:46:11,721 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:11,721 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-05 20:46:11,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:46:11,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:46:11,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:11,722 INFO L85 PathProgramCache]: Analyzing trace with hash 9554098, now seen corresponding path program 1 times [2022-12-05 20:46:11,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:11,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693264908] [2022-12-05 20:46:11,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:11,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:11,830 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 20:46:11,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:11,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693264908] [2022-12-05 20:46:11,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693264908] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:11,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:11,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:46:11,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929367700] [2022-12-05 20:46:11,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:11,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:46:11,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:11,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:46:11,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:46:11,832 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2022-12-05 20:46:11,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 20:46:11,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:11,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2022-12-05 20:46:11,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:11,857 INFO L130 PetriNetUnfolder]: 30/88 cut-off events. [2022-12-05 20:46:11,857 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:11,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 88 events. 30/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 264 event pairs, 18 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 166. Up to 44 conditions per place. [2022-12-05 20:46:11,858 INFO L137 encePairwiseOnDemand]: 18/22 looper letters, 15 selfloop transitions, 3 changer transitions 1/21 dead transitions. [2022-12-05 20:46:11,858 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 21 transitions, 80 flow [2022-12-05 20:46:11,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:46:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:46:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2022-12-05 20:46:11,859 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2022-12-05 20:46:11,859 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 36 flow. Second operand 3 states and 28 transitions. [2022-12-05 20:46:11,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 21 transitions, 80 flow [2022-12-05 20:46:11,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 80 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:46:11,860 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 45 flow [2022-12-05 20:46:11,860 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2022-12-05 20:46:11,861 INFO L294 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2022-12-05 20:46:11,861 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 45 flow [2022-12-05 20:46:11,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 20:46:11,861 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:11,861 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:11,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:46:11,862 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:46:11,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:11,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1157843341, now seen corresponding path program 1 times [2022-12-05 20:46:11,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:11,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938305815] [2022-12-05 20:46:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:11,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:11,924 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 20:46:11,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:11,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938305815] [2022-12-05 20:46:11,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938305815] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:11,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:11,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:46:11,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638342621] [2022-12-05 20:46:11,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:11,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:46:11,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:11,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:46:11,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:46:11,925 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 22 [2022-12-05 20:46:11,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 20:46:11,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:11,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 22 [2022-12-05 20:46:11,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:11,968 INFO L130 PetriNetUnfolder]: 28/83 cut-off events. [2022-12-05 20:46:11,968 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-05 20:46:11,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 83 events. 28/83 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 243 event pairs, 12 based on Foata normal form. 2/72 useless extension candidates. Maximal degree in co-relation 181. Up to 47 conditions per place. [2022-12-05 20:46:11,969 INFO L137 encePairwiseOnDemand]: 16/22 looper letters, 13 selfloop transitions, 5 changer transitions 5/24 dead transitions. [2022-12-05 20:46:11,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 24 transitions, 110 flow [2022-12-05 20:46:11,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:46:11,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:46:11,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2022-12-05 20:46:11,972 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4696969696969697 [2022-12-05 20:46:11,972 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 45 flow. Second operand 3 states and 31 transitions. [2022-12-05 20:46:11,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 24 transitions, 110 flow [2022-12-05 20:46:11,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:46:11,973 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 56 flow [2022-12-05 20:46:11,973 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2022-12-05 20:46:11,974 INFO L294 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2022-12-05 20:46:11,974 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 56 flow [2022-12-05 20:46:11,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 20:46:11,974 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:11,974 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:11,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:46:11,974 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:46:11,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:11,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1169584865, now seen corresponding path program 1 times [2022-12-05 20:46:11,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:11,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716347130] [2022-12-05 20:46:11,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:11,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:12,016 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 20:46:12,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:12,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716347130] [2022-12-05 20:46:12,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716347130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:12,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:12,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:46:12,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540913938] [2022-12-05 20:46:12,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:12,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:46:12,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:12,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:46:12,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:46:12,018 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2022-12-05 20:46:12,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 20:46:12,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:12,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2022-12-05 20:46:12,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:12,037 INFO L130 PetriNetUnfolder]: 14/52 cut-off events. [2022-12-05 20:46:12,038 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-05 20:46:12,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 52 events. 14/52 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 116 event pairs, 8 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 134. Up to 29 conditions per place. [2022-12-05 20:46:12,038 INFO L137 encePairwiseOnDemand]: 19/22 looper letters, 8 selfloop transitions, 2 changer transitions 7/19 dead transitions. [2022-12-05 20:46:12,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 102 flow [2022-12-05 20:46:12,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:46:12,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:46:12,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2022-12-05 20:46:12,039 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4090909090909091 [2022-12-05 20:46:12,039 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 56 flow. Second operand 3 states and 27 transitions. [2022-12-05 20:46:12,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 102 flow [2022-12-05 20:46:12,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 93 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-05 20:46:12,040 INFO L231 Difference]: Finished difference. Result has 24 places, 12 transitions, 43 flow [2022-12-05 20:46:12,040 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=24, PETRI_TRANSITIONS=12} [2022-12-05 20:46:12,040 INFO L294 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2022-12-05 20:46:12,041 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 12 transitions, 43 flow [2022-12-05 20:46:12,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 20:46:12,041 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:12,041 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:12,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:46:12,041 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:46:12,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:12,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1897391756, now seen corresponding path program 1 times [2022-12-05 20:46:12,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:12,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074584385] [2022-12-05 20:46:12,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:12,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:12,118 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 20:46:12,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:12,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074584385] [2022-12-05 20:46:12,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074584385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:12,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:12,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:46:12,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032083725] [2022-12-05 20:46:12,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:12,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:46:12,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:12,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:46:12,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:46:12,119 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 22 [2022-12-05 20:46:12,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 12 transitions, 43 flow. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 20:46:12,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:12,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 22 [2022-12-05 20:46:12,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:12,132 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-05 20:46:12,132 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-05 20:46:12,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 9 events. 0/9 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 3/12 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-12-05 20:46:12,132 INFO L137 encePairwiseOnDemand]: 19/22 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2022-12-05 20:46:12,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 9 transitions, 49 flow [2022-12-05 20:46:12,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:46:12,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:46:12,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-12-05 20:46:12,133 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.19318181818181818 [2022-12-05 20:46:12,133 INFO L175 Difference]: Start difference. First operand has 24 places, 12 transitions, 43 flow. Second operand 4 states and 17 transitions. [2022-12-05 20:46:12,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 9 transitions, 49 flow [2022-12-05 20:46:12,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 9 transitions, 39 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 20:46:12,134 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2022-12-05 20:46:12,134 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2022-12-05 20:46:12,134 INFO L294 CegarLoopForPetriNet]: 24 programPoint places, -7 predicate places. [2022-12-05 20:46:12,134 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2022-12-05 20:46:12,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 20:46:12,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 20:46:12,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-05 20:46:12,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-05 20:46:12,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-12-05 20:46:12,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-05 20:46:12,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:46:12,137 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-05 20:46:12,140 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:46:12,140 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:46:12,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:46:12 BasicIcfg [2022-12-05 20:46:12,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:46:12,143 INFO L158 Benchmark]: Toolchain (without parser) took 4042.91ms. Allocated memory was 185.6MB in the beginning and 223.3MB in the end (delta: 37.7MB). Free memory was 161.4MB in the beginning and 81.7MB in the end (delta: 79.7MB). Peak memory consumption was 117.5MB. Max. memory is 8.0GB. [2022-12-05 20:46:12,143 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 185.6MB. Free memory is still 162.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:46:12,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.29ms. Allocated memory is still 185.6MB. Free memory was 161.4MB in the beginning and 142.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-05 20:46:12,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.35ms. Allocated memory is still 185.6MB. Free memory was 142.5MB in the beginning and 140.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:46:12,144 INFO L158 Benchmark]: Boogie Preprocessor took 37.59ms. Allocated memory is still 185.6MB. Free memory was 140.4MB in the beginning and 138.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:46:12,144 INFO L158 Benchmark]: RCFGBuilder took 331.69ms. Allocated memory is still 185.6MB. Free memory was 138.9MB in the beginning and 125.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 20:46:12,145 INFO L158 Benchmark]: TraceAbstraction took 3280.83ms. Allocated memory was 185.6MB in the beginning and 223.3MB in the end (delta: 37.7MB). Free memory was 124.7MB in the beginning and 81.7MB in the end (delta: 43.0MB). Peak memory consumption was 80.8MB. Max. memory is 8.0GB. [2022-12-05 20:46:12,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 185.6MB. Free memory is still 162.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 349.29ms. Allocated memory is still 185.6MB. Free memory was 161.4MB in the beginning and 142.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.35ms. Allocated memory is still 185.6MB. Free memory was 142.5MB in the beginning and 140.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.59ms. Allocated memory is still 185.6MB. Free memory was 140.4MB in the beginning and 138.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 331.69ms. Allocated memory is still 185.6MB. Free memory was 138.9MB in the beginning and 125.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3280.83ms. Allocated memory was 185.6MB in the beginning and 223.3MB in the end (delta: 37.7MB). Free memory was 124.7MB in the beginning and 81.7MB in the end (delta: 43.0MB). Peak memory consumption was 80.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 74 PlacesBefore, 24 PlacesAfterwards, 73 TransitionsBefore, 22 TransitionsAfterwards, 616 CoEnabledTransitionPairs, 6 FixpointIterations, 0 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 33 TrivialYvCompositions, 21 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1306, independent: 1153, independent conditional: 1153, independent unconditional: 0, dependent: 153, dependent conditional: 153, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1306, independent: 1153, independent conditional: 0, independent unconditional: 1153, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1306, independent: 1153, independent conditional: 0, independent unconditional: 1153, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1306, independent: 1153, independent conditional: 0, independent unconditional: 1153, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 549, independent: 514, independent conditional: 0, independent unconditional: 514, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 549, independent: 456, independent conditional: 0, independent unconditional: 456, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 93, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 101, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1306, independent: 639, independent conditional: 0, independent unconditional: 639, dependent: 118, dependent conditional: 0, dependent unconditional: 118, unknown: 549, unknown conditional: 0, unknown unconditional: 549] , Statistics on independence cache: Total cache size (in pairs): 1408, Positive cache size: 1373, Positive conditional cache size: 0, Positive unconditional cache size: 1373, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 102 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: 3.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 3 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:46:12,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...