/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:57:30,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:57:30,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:57:30,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:57:30,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:57:30,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:57:30,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:57:30,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:57:30,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:57:30,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:57:30,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:57:30,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:57:30,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:57:30,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:57:30,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:57:30,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:57:30,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:57:30,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:57:30,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:57:30,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:57:30,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:57:30,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:57:30,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:57:30,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:57:30,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:57:30,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:57:30,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:57:30,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:57:30,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:57:30,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:57:30,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:57:30,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:57:30,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:57:30,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:57:30,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:57:30,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:57:30,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:57:30,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:57:30,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:57:30,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:57:30,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:57:30,913 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-NoLbe.epf [2022-12-06 16:57:30,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:57:30,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:57:30,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:57:30,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:57:30,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:57:30,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:57:30,928 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:57:30,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:57:30,928 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:57:30,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:57:30,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:57:30,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:57:30,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:57:30,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:57:30,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:57:30,929 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:57:30,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:57:30,929 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:57:30,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:57:30,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:57:30,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:57:30,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:57:30,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:57:30,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:57:30,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:57:30,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:57:30,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:57:30,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:57:30,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:57:30,930 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:57:30,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:57:30,930 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:57:31,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:57:31,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:57:31,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:57:31,192 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:57:31,192 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:57:31,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-12-06 16:57:32,248 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:57:32,446 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:57:32,446 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-12-06 16:57:32,475 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d16f9042d/e911c66b242f4e60a7d68d9f19e64d3d/FLAG71adebb17 [2022-12-06 16:57:32,489 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d16f9042d/e911c66b242f4e60a7d68d9f19e64d3d [2022-12-06 16:57:32,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:57:32,491 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:57:32,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:57:32,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:57:32,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:57:32,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46529525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32, skipping insertion in model container [2022-12-06 16:57:32,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:57:32,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:57:32,667 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_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-12-06 16:57:32,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:57:32,792 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:57:32,800 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_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-12-06 16:57:32,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:57:32,850 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:57:32,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32 WrapperNode [2022-12-06 16:57:32,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:57:32,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:57:32,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:57:32,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:57:32,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,886 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2022-12-06 16:57:32,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:57:32,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:57:32,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:57:32,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:57:32,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,913 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:57:32,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:57:32,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:57:32,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:57:32,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (1/1) ... [2022-12-06 16:57:32,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:57:32,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:57:32,956 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) [2022-12-06 16:57:32,979 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 [2022-12-06 16:57:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:57:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-06 16:57:32,983 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-06 16:57:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:57:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 16:57:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:57:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:57:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:57:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:57:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:57:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:57:32,985 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:57:33,086 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:57:33,087 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:57:33,267 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:57:33,272 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:57:33,272 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:57:33,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:33 BoogieIcfgContainer [2022-12-06 16:57:33,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:57:33,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:57:33,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:57:33,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:57:33,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:57:32" (1/3) ... [2022-12-06 16:57:33,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdbb8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:57:33, skipping insertion in model container [2022-12-06 16:57:33,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:32" (2/3) ... [2022-12-06 16:57:33,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdbb8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:57:33, skipping insertion in model container [2022-12-06 16:57:33,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:33" (3/3) ... [2022-12-06 16:57:33,279 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2022-12-06 16:57:33,294 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:57:33,294 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-06 16:57:33,294 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:57:33,345 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 16:57:33,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 101 transitions, 210 flow [2022-12-06 16:57:33,415 INFO L130 PetriNetUnfolder]: 3/100 cut-off events. [2022-12-06 16:57:33,416 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:57:33,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 100 events. 3/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-12-06 16:57:33,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 101 transitions, 210 flow [2022-12-06 16:57:33,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 86 transitions, 175 flow [2022-12-06 16:57:33,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:57:33,448 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;@3503335b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:57:33,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 16:57:33,460 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-12-06 16:57:33,460 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:57:33,460 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:33,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:33,461 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-06 16:57:33,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:33,465 INFO L85 PathProgramCache]: Analyzing trace with hash 132121231, now seen corresponding path program 1 times [2022-12-06 16:57:33,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:33,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960685289] [2022-12-06 16:57:33,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:33,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:33,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:33,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:33,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960685289] [2022-12-06 16:57:33,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960685289] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:33,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:33,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:57:33,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128546261] [2022-12-06 16:57:33,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:33,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:57:33,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:33,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:57:33,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:57:33,868 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 101 [2022-12-06 16:57:33,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 86 transitions, 175 flow. Second operand has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 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) [2022-12-06 16:57:33,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:33,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 101 [2022-12-06 16:57:33,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:34,061 INFO L130 PetriNetUnfolder]: 62/338 cut-off events. [2022-12-06 16:57:34,061 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:57:34,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 338 events. 62/338 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1533 event pairs, 14 based on Foata normal form. 8/338 useless extension candidates. Maximal degree in co-relation 448. Up to 60 conditions per place. [2022-12-06 16:57:34,065 INFO L137 encePairwiseOnDemand]: 89/101 looper letters, 32 selfloop transitions, 17 changer transitions 0/111 dead transitions. [2022-12-06 16:57:34,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 111 transitions, 323 flow [2022-12-06 16:57:34,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:57:34,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:57:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 711 transitions. [2022-12-06 16:57:34,078 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7821782178217822 [2022-12-06 16:57:34,080 INFO L294 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2022-12-06 16:57:34,080 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 111 transitions, 323 flow [2022-12-06 16:57:34,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 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) [2022-12-06 16:57:34,081 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:34,081 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:34,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:57:34,081 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-06 16:57:34,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:34,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1009573006, now seen corresponding path program 1 times [2022-12-06 16:57:34,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:34,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891847042] [2022-12-06 16:57:34,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:34,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:34,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:34,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891847042] [2022-12-06 16:57:34,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891847042] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:34,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:34,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:57:34,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036375155] [2022-12-06 16:57:34,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:34,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:57:34,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:34,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:57:34,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:57:34,312 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 101 [2022-12-06 16:57:34,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 111 transitions, 323 flow. Second operand has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 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) [2022-12-06 16:57:34,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:34,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 101 [2022-12-06 16:57:34,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:34,436 INFO L130 PetriNetUnfolder]: 68/370 cut-off events. [2022-12-06 16:57:34,436 INFO L131 PetriNetUnfolder]: For 27/41 co-relation queries the response was YES. [2022-12-06 16:57:34,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 370 events. 68/370 cut-off events. For 27/41 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1824 event pairs, 15 based on Foata normal form. 5/368 useless extension candidates. Maximal degree in co-relation 658. Up to 72 conditions per place. [2022-12-06 16:57:34,442 INFO L137 encePairwiseOnDemand]: 91/101 looper letters, 45 selfloop transitions, 23 changer transitions 0/130 dead transitions. [2022-12-06 16:57:34,442 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 130 transitions, 535 flow [2022-12-06 16:57:34,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:57:34,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:57:34,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 707 transitions. [2022-12-06 16:57:34,444 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-12-06 16:57:34,445 INFO L294 CegarLoopForPetriNet]: 88 programPoint places, 14 predicate places. [2022-12-06 16:57:34,445 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 130 transitions, 535 flow [2022-12-06 16:57:34,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 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) [2022-12-06 16:57:34,446 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:34,446 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, 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] [2022-12-06 16:57:34,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:57:34,449 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-06 16:57:34,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:34,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1485635243, now seen corresponding path program 1 times [2022-12-06 16:57:34,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:34,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199920756] [2022-12-06 16:57:34,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:34,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:34,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:34,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:34,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199920756] [2022-12-06 16:57:34,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199920756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:34,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:34,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:57:34,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432385230] [2022-12-06 16:57:34,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:34,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:57:34,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:34,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:57:34,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:57:34,616 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 101 [2022-12-06 16:57:34,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 130 transitions, 535 flow. Second operand has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 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) [2022-12-06 16:57:34,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:34,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 101 [2022-12-06 16:57:34,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:34,818 INFO L130 PetriNetUnfolder]: 90/452 cut-off events. [2022-12-06 16:57:34,818 INFO L131 PetriNetUnfolder]: For 139/189 co-relation queries the response was YES. [2022-12-06 16:57:34,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1069 conditions, 452 events. 90/452 cut-off events. For 139/189 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2377 event pairs, 0 based on Foata normal form. 16/462 useless extension candidates. Maximal degree in co-relation 1020. Up to 92 conditions per place. [2022-12-06 16:57:34,820 INFO L137 encePairwiseOnDemand]: 84/101 looper letters, 55 selfloop transitions, 71 changer transitions 18/205 dead transitions. [2022-12-06 16:57:34,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 205 transitions, 1261 flow [2022-12-06 16:57:34,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 16:57:34,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 16:57:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1480 transitions. [2022-12-06 16:57:34,823 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.771235018238666 [2022-12-06 16:57:34,824 INFO L294 CegarLoopForPetriNet]: 88 programPoint places, 32 predicate places. [2022-12-06 16:57:34,824 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 205 transitions, 1261 flow [2022-12-06 16:57:34,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 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) [2022-12-06 16:57:34,824 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:34,824 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, 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, 1, 1] [2022-12-06 16:57:34,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:57:34,825 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-06 16:57:34,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:34,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1503192446, now seen corresponding path program 1 times [2022-12-06 16:57:34,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:34,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814798809] [2022-12-06 16:57:34,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:34,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:34,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:34,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814798809] [2022-12-06 16:57:34,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814798809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:34,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:34,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:57:34,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518617318] [2022-12-06 16:57:34,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:34,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:57:34,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:34,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:57:34,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:57:34,944 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 101 [2022-12-06 16:57:34,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 205 transitions, 1261 flow. Second operand has 7 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 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) [2022-12-06 16:57:34,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:34,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 101 [2022-12-06 16:57:34,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:35,102 INFO L130 PetriNetUnfolder]: 87/446 cut-off events. [2022-12-06 16:57:35,102 INFO L131 PetriNetUnfolder]: For 219/287 co-relation queries the response was YES. [2022-12-06 16:57:35,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1278 conditions, 446 events. 87/446 cut-off events. For 219/287 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2352 event pairs, 0 based on Foata normal form. 14/457 useless extension candidates. Maximal degree in co-relation 1226. Up to 89 conditions per place. [2022-12-06 16:57:35,105 INFO L137 encePairwiseOnDemand]: 85/101 looper letters, 60 selfloop transitions, 80 changer transitions 24/225 dead transitions. [2022-12-06 16:57:35,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 225 transitions, 1725 flow [2022-12-06 16:57:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 16:57:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 16:57:35,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1473 transitions. [2022-12-06 16:57:35,107 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7675872850442939 [2022-12-06 16:57:35,108 INFO L294 CegarLoopForPetriNet]: 88 programPoint places, 50 predicate places. [2022-12-06 16:57:35,108 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 225 transitions, 1725 flow [2022-12-06 16:57:35,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 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) [2022-12-06 16:57:35,109 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:35,109 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, 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, 1, 1, 1, 1] [2022-12-06 16:57:35,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:57:35,109 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-06 16:57:35,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:35,109 INFO L85 PathProgramCache]: Analyzing trace with hash -39155278, now seen corresponding path program 1 times [2022-12-06 16:57:35,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:35,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346639884] [2022-12-06 16:57:35,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:35,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:35,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:35,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:35,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346639884] [2022-12-06 16:57:35,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346639884] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:35,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:35,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:57:35,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614622404] [2022-12-06 16:57:35,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:35,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:57:35,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:35,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:57:35,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:57:35,228 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 101 [2022-12-06 16:57:35,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 225 transitions, 1725 flow. Second operand has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:57:35,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:35,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 101 [2022-12-06 16:57:35,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:35,296 INFO L130 PetriNetUnfolder]: 26/282 cut-off events. [2022-12-06 16:57:35,296 INFO L131 PetriNetUnfolder]: For 171/171 co-relation queries the response was YES. [2022-12-06 16:57:35,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 282 events. 26/282 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1063 event pairs, 13 based on Foata normal form. 10/285 useless extension candidates. Maximal degree in co-relation 681. Up to 54 conditions per place. [2022-12-06 16:57:35,297 INFO L137 encePairwiseOnDemand]: 91/101 looper letters, 19 selfloop transitions, 10 changer transitions 3/120 dead transitions. [2022-12-06 16:57:35,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 120 transitions, 725 flow [2022-12-06 16:57:35,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 16:57:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 16:57:35,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 368 transitions. [2022-12-06 16:57:35,299 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7287128712871287 [2022-12-06 16:57:35,299 INFO L294 CegarLoopForPetriNet]: 88 programPoint places, 43 predicate places. [2022-12-06 16:57:35,299 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 120 transitions, 725 flow [2022-12-06 16:57:35,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:57:35,300 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:35,300 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, 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, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:35,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:57:35,300 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-06 16:57:35,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:35,300 INFO L85 PathProgramCache]: Analyzing trace with hash 936554303, now seen corresponding path program 1 times [2022-12-06 16:57:35,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:35,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614395444] [2022-12-06 16:57:35,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:35,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:35,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:35,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:35,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614395444] [2022-12-06 16:57:35,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614395444] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:35,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:35,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:57:35,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156505586] [2022-12-06 16:57:35,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:35,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:57:35,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:35,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:57:35,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:57:35,406 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 101 [2022-12-06 16:57:35,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 120 transitions, 725 flow. Second operand has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 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) [2022-12-06 16:57:35,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:35,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 101 [2022-12-06 16:57:35,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:35,637 INFO L130 PetriNetUnfolder]: 26/278 cut-off events. [2022-12-06 16:57:35,637 INFO L131 PetriNetUnfolder]: For 281/281 co-relation queries the response was YES. [2022-12-06 16:57:35,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 833 conditions, 278 events. 26/278 cut-off events. For 281/281 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1034 event pairs, 13 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 764. Up to 54 conditions per place. [2022-12-06 16:57:35,638 INFO L137 encePairwiseOnDemand]: 84/101 looper letters, 19 selfloop transitions, 34 changer transitions 3/120 dead transitions. [2022-12-06 16:57:35,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 120 transitions, 829 flow [2022-12-06 16:57:35,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 16:57:35,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 16:57:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1689 transitions. [2022-12-06 16:57:35,641 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7270770555316401 [2022-12-06 16:57:35,641 INFO L294 CegarLoopForPetriNet]: 88 programPoint places, 63 predicate places. [2022-12-06 16:57:35,641 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 120 transitions, 829 flow [2022-12-06 16:57:35,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 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) [2022-12-06 16:57:35,642 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:35,642 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:35,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:57:35,642 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-06 16:57:35,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:35,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1533431490, now seen corresponding path program 1 times [2022-12-06 16:57:35,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:35,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907546912] [2022-12-06 16:57:35,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:35,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:35,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:35,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907546912] [2022-12-06 16:57:35,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907546912] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:35,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:35,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:57:35,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569888192] [2022-12-06 16:57:35,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:35,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:57:35,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:35,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:57:35,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:57:35,756 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 101 [2022-12-06 16:57:35,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 120 transitions, 829 flow. Second operand has 9 states, 9 states have (on average 72.77777777777777) internal successors, (655), 9 states have internal predecessors, (655), 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) [2022-12-06 16:57:35,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:35,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 101 [2022-12-06 16:57:35,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:35,903 INFO L130 PetriNetUnfolder]: 26/274 cut-off events. [2022-12-06 16:57:35,903 INFO L131 PetriNetUnfolder]: For 418/418 co-relation queries the response was YES. [2022-12-06 16:57:35,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 915 conditions, 274 events. 26/274 cut-off events. For 418/418 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1000 event pairs, 13 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 843. Up to 54 conditions per place. [2022-12-06 16:57:35,905 INFO L137 encePairwiseOnDemand]: 84/101 looper letters, 17 selfloop transitions, 35 changer transitions 3/118 dead transitions. [2022-12-06 16:57:35,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 118 transitions, 925 flow [2022-12-06 16:57:35,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 16:57:35,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 16:57:35,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1541 transitions. [2022-12-06 16:57:35,907 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7265440829797265 [2022-12-06 16:57:35,908 INFO L294 CegarLoopForPetriNet]: 88 programPoint places, 81 predicate places. [2022-12-06 16:57:35,908 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 118 transitions, 925 flow [2022-12-06 16:57:35,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.77777777777777) internal successors, (655), 9 states have internal predecessors, (655), 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) [2022-12-06 16:57:35,908 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:35,908 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:35,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:57:35,909 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-06 16:57:35,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:35,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2103358848, now seen corresponding path program 1 times [2022-12-06 16:57:35,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:35,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067120470] [2022-12-06 16:57:35,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:35,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:36,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:36,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067120470] [2022-12-06 16:57:36,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067120470] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:36,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:36,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:57:36,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152987644] [2022-12-06 16:57:36,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:36,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:57:36,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:36,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:57:36,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:57:36,036 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 101 [2022-12-06 16:57:36,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 118 transitions, 925 flow. Second operand has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 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) [2022-12-06 16:57:36,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:36,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 101 [2022-12-06 16:57:36,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:36,132 INFO L130 PetriNetUnfolder]: 12/194 cut-off events. [2022-12-06 16:57:36,132 INFO L131 PetriNetUnfolder]: For 315/317 co-relation queries the response was YES. [2022-12-06 16:57:36,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 194 events. 12/194 cut-off events. For 315/317 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 510 event pairs, 1 based on Foata normal form. 13/207 useless extension candidates. Maximal degree in co-relation 656. Up to 38 conditions per place. [2022-12-06 16:57:36,133 INFO L137 encePairwiseOnDemand]: 96/101 looper letters, 24 selfloop transitions, 7 changer transitions 3/115 dead transitions. [2022-12-06 16:57:36,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 115 transitions, 925 flow [2022-12-06 16:57:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 16:57:36,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 16:57:36,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 364 transitions. [2022-12-06 16:57:36,144 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7207920792079208 [2022-12-06 16:57:36,145 INFO L294 CegarLoopForPetriNet]: 88 programPoint places, 85 predicate places. [2022-12-06 16:57:36,145 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 115 transitions, 925 flow [2022-12-06 16:57:36,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 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) [2022-12-06 16:57:36,145 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:36,145 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:36,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:57:36,145 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-06 16:57:36,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:36,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1329513679, now seen corresponding path program 1 times [2022-12-06 16:57:36,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:36,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205798153] [2022-12-06 16:57:36,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:36,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:36,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:36,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:36,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205798153] [2022-12-06 16:57:36,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205798153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:36,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:36,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:57:36,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531483401] [2022-12-06 16:57:36,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:36,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:57:36,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:36,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:57:36,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:57:36,282 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 101 [2022-12-06 16:57:36,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 115 transitions, 925 flow. Second operand has 8 states, 8 states have (on average 73.5) internal successors, (588), 8 states have internal predecessors, (588), 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) [2022-12-06 16:57:36,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:36,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 101 [2022-12-06 16:57:36,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:36,423 INFO L130 PetriNetUnfolder]: 12/192 cut-off events. [2022-12-06 16:57:36,423 INFO L131 PetriNetUnfolder]: For 426/427 co-relation queries the response was YES. [2022-12-06 16:57:36,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 192 events. 12/192 cut-off events. For 426/427 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 511 event pairs, 1 based on Foata normal form. 2/194 useless extension candidates. Maximal degree in co-relation 717. Up to 38 conditions per place. [2022-12-06 16:57:36,424 INFO L137 encePairwiseOnDemand]: 87/101 looper letters, 0 selfloop transitions, 0 changer transitions 113/113 dead transitions. [2022-12-06 16:57:36,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 113 transitions, 1007 flow [2022-12-06 16:57:36,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:57:36,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:57:36,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1170 transitions. [2022-12-06 16:57:36,425 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.724009900990099 [2022-12-06 16:57:36,426 INFO L294 CegarLoopForPetriNet]: 88 programPoint places, 98 predicate places. [2022-12-06 16:57:36,426 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 113 transitions, 1007 flow [2022-12-06 16:57:36,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.5) internal successors, (588), 8 states have internal predecessors, (588), 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) [2022-12-06 16:57:36,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 16:57:36,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-12-06 16:57:36,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-12-06 16:57:36,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 16:57:36,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:57:36,429 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:36,431 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:57:36,431 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:57:36,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:57:36 BasicIcfg [2022-12-06 16:57:36,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:57:36,438 INFO L158 Benchmark]: Toolchain (without parser) took 3946.85ms. Allocated memory was 215.0MB in the beginning and 266.3MB in the end (delta: 51.4MB). Free memory was 166.6MB in the beginning and 150.3MB in the end (delta: 16.3MB). Peak memory consumption was 68.1MB. Max. memory is 8.0GB. [2022-12-06 16:57:36,438 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 215.0MB. Free memory was 192.4MB in the beginning and 192.3MB in the end (delta: 83.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:57:36,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.30ms. Allocated memory is still 215.0MB. Free memory was 166.4MB in the beginning and 178.3MB in the end (delta: -12.0MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. [2022-12-06 16:57:36,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.96ms. Allocated memory is still 215.0MB. Free memory was 178.3MB in the beginning and 176.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:57:36,442 INFO L158 Benchmark]: Boogie Preprocessor took 29.23ms. Allocated memory is still 215.0MB. Free memory was 176.3MB in the beginning and 174.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:57:36,442 INFO L158 Benchmark]: RCFGBuilder took 357.82ms. Allocated memory is still 215.0MB. Free memory was 174.8MB in the beginning and 160.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 16:57:36,442 INFO L158 Benchmark]: TraceAbstraction took 3163.07ms. Allocated memory was 215.0MB in the beginning and 266.3MB in the end (delta: 51.4MB). Free memory was 159.5MB in the beginning and 150.3MB in the end (delta: 9.2MB). Peak memory consumption was 59.9MB. Max. memory is 8.0GB. [2022-12-06 16:57:36,444 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 215.0MB. Free memory was 192.4MB in the beginning and 192.3MB in the end (delta: 83.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 357.30ms. Allocated memory is still 215.0MB. Free memory was 166.4MB in the beginning and 178.3MB in the end (delta: -12.0MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.96ms. Allocated memory is still 215.0MB. Free memory was 178.3MB in the beginning and 176.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.23ms. Allocated memory is still 215.0MB. Free memory was 176.3MB in the beginning and 174.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 357.82ms. Allocated memory is still 215.0MB. Free memory was 174.8MB in the beginning and 160.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3163.07ms. Allocated memory was 215.0MB in the beginning and 266.3MB in the end (delta: 51.4MB). Free memory was 159.5MB in the beginning and 150.3MB in the end (delta: 9.2MB). Peak memory consumption was 59.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 119 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 563 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 563 mSDsluCounter, 444 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 320 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 800 IncrementalHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 124 mSDtfsCounter, 800 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1725occurred in iteration=4, InterpolantAutomatonStates: 126, 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, 1.2s InterpolantComputationTime, 543 NumberOfCodeBlocks, 543 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 1739 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:57:36,475 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...