/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-a802222-m [2022-12-11 21:14:07,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:14:07,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:14:07,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:14:07,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:14:07,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:14:07,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:14:07,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:14:07,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:14:07,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:14:07,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:14:07,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:14:07,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:14:07,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:14:07,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:14:07,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:14:07,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:14:07,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:14:07,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:14:07,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:14:07,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:14:07,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:14:07,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:14:07,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:14:07,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:14:07,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:14:07,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:14:07,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:14:07,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:14:07,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 21:14:07,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 21:14:07,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 21:14:07,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 21:14:07,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 21:14:07,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 21:14:07,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 21:14:07,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 21:14:07,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 21:14:07,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:14:07,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:14:07,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:14:07,109 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 [2022-12-11 21:14:07,137 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:14:07,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:14:07,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:14:07,138 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:14:07,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:14:07,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:14:07,140 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:14:07,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:14:07,140 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:14:07,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:14:07,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:14:07,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:14:07,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:14:07,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:14:07,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:14:07,141 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:14:07,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:14:07,141 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:14:07,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:14:07,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:14:07,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:14:07,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:14:07,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:14:07,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:14:07,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:14:07,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:14:07,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:14:07,142 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:14:07,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:14:07,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:14:07,143 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:14:07,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:14:07,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:14:07,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:14:07,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:14:07,433 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:14:07,433 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:14:07,434 INFO L432 ainManager$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 [2022-12-11 21:14:08,407 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:14:08,591 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:14:08,591 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-12-11 21:14:08,598 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaa24c1d4/501ed11c8e014a2f8e397fce1cd043a9/FLAG9d96e0066 [2022-12-11 21:14:08,609 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaa24c1d4/501ed11c8e014a2f8e397fce1cd043a9 [2022-12-11 21:14:08,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:14:08,612 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:14:08,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:14:08,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:14:08,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:14:08,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:08,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c29fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08, skipping insertion in model container [2022-12-11 21:14:08,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:08,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:14:08,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:14:08,754 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] [2022-12-11 21:14:08,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:14:08,891 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:14:08,900 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] [2022-12-11 21:14:08,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:14:08,966 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:14:08,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08 WrapperNode [2022-12-11 21:14:08,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:14:08,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:14:08,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:14:08,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:14:08,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:08,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:09,001 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2022-12-11 21:14:09,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:14:09,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:14:09,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:14:09,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:14:09,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:09,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:09,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:09,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:09,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:09,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:09,034 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:09,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:09,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:14:09,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:14:09,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:14:09,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:14:09,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (1/1) ... [2022-12-11 21:14:09,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:14:09,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:14:09,065 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) [2022-12-11 21:14:09,086 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 [2022-12-11 21:14:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 21:14:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-11 21:14:09,097 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-11 21:14:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:14:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-11 21:14:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:14:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:14:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:14:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:14:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:14:09,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:14:09,099 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 21:14:09,177 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:14:09,178 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:14:09,426 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:14:09,431 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:14:09,432 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 21:14:09,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:14:09 BoogieIcfgContainer [2022-12-11 21:14:09,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:14:09,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:14:09,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:14:09,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:14:09,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:14:08" (1/3) ... [2022-12-11 21:14:09,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9ec23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:14:09, skipping insertion in model container [2022-12-11 21:14:09,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:14:08" (2/3) ... [2022-12-11 21:14:09,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9ec23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:14:09, skipping insertion in model container [2022-12-11 21:14:09,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:14:09" (3/3) ... [2022-12-11 21:14:09,441 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2022-12-11 21:14:09,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:14:09,455 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-11 21:14:09,455 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:14:09,520 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-11 21:14:09,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 101 transitions, 210 flow [2022-12-11 21:14:09,593 INFO L130 PetriNetUnfolder]: 3/100 cut-off events. [2022-12-11 21:14:09,593 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 21:14:09,596 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. [2022-12-11 21:14:09,597 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 101 transitions, 210 flow [2022-12-11 21:14:09,600 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 86 transitions, 175 flow [2022-12-11 21:14:09,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:14:09,611 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;@5c291707, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:14:09,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 21:14:09,631 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-12-11 21:14:09,631 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:14:09,631 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:14:09,632 INFO L214 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] [2022-12-11 21:14:09,632 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)] === [2022-12-11 21:14:09,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:14:09,636 INFO L85 PathProgramCache]: Analyzing trace with hash 132121231, now seen corresponding path program 1 times [2022-12-11 21:14:09,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:14:09,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959552992] [2022-12-11 21:14:09,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:14:09,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:14:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:14:10,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:14:10,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:14:10,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959552992] [2022-12-11 21:14:10,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959552992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:14:10,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:14:10,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-11 21:14:10,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716525170] [2022-12-11 21:14:10,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:14:10,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-11 21:14:10,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:14:10,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-11 21:14:10,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-11 21:14:10,160 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 101 [2022-12-11 21:14:10,163 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) [2022-12-11 21:14:10,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:14:10,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 101 [2022-12-11 21:14:10,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:14:10,318 INFO L130 PetriNetUnfolder]: 62/338 cut-off events. [2022-12-11 21:14:10,318 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 21:14:10,320 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. [2022-12-11 21:14:10,322 INFO L137 encePairwiseOnDemand]: 89/101 looper letters, 32 selfloop transitions, 17 changer transitions 0/111 dead transitions. [2022-12-11 21:14:10,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 111 transitions, 323 flow [2022-12-11 21:14:10,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 21:14:10,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 21:14:10,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 711 transitions. [2022-12-11 21:14:10,343 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7821782178217822 [2022-12-11 21:14:10,347 INFO L295 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2022-12-11 21:14:10,349 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 111 transitions, 323 flow [2022-12-11 21:14:10,351 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 111 transitions, 323 flow [2022-12-11 21:14:10,352 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 111 transitions, 323 flow [2022-12-11 21:14:10,353 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) [2022-12-11 21:14:10,353 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:14:10,353 INFO L214 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] [2022-12-11 21:14:10,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:14:10,353 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)] === [2022-12-11 21:14:10,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:14:10,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1009573006, now seen corresponding path program 1 times [2022-12-11 21:14:10,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:14:10,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959520446] [2022-12-11 21:14:10,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:14:10,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:14:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:14:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:14:10,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:14:10,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959520446] [2022-12-11 21:14:10,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959520446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:14:10,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:14:10,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-11 21:14:10,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253613460] [2022-12-11 21:14:10,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:14:10,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-11 21:14:10,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:14:10,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-11 21:14:10,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-11 21:14:10,544 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 101 [2022-12-11 21:14:10,544 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) [2022-12-11 21:14:10,545 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:14:10,545 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 101 [2022-12-11 21:14:10,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:14:10,672 INFO L130 PetriNetUnfolder]: 68/370 cut-off events. [2022-12-11 21:14:10,672 INFO L131 PetriNetUnfolder]: For 27/41 co-relation queries the response was YES. [2022-12-11 21:14:10,676 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. [2022-12-11 21:14:10,678 INFO L137 encePairwiseOnDemand]: 91/101 looper letters, 45 selfloop transitions, 23 changer transitions 0/130 dead transitions. [2022-12-11 21:14:10,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 130 transitions, 535 flow [2022-12-11 21:14:10,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 21:14:10,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 21:14:10,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 707 transitions. [2022-12-11 21:14:10,681 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-12-11 21:14:10,681 INFO L295 CegarLoopForPetriNet]: 88 programPoint places, 14 predicate places. [2022-12-11 21:14:10,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 130 transitions, 535 flow [2022-12-11 21:14:10,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 130 transitions, 535 flow [2022-12-11 21:14:10,686 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 130 transitions, 535 flow [2022-12-11 21:14:10,686 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) [2022-12-11 21:14:10,686 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:14:10,686 INFO L214 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] [2022-12-11 21:14:10,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 21:14:10,687 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)] === [2022-12-11 21:14:10,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:14:10,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1485635243, now seen corresponding path program 1 times [2022-12-11 21:14:10,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:14:10,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512558245] [2022-12-11 21:14:10,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:14:10,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:14:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:14:10,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:14:10,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:14:10,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512558245] [2022-12-11 21:14:10,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512558245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:14:10,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:14:10,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:14:10,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901030487] [2022-12-11 21:14:10,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:14:10,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:14:10,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:14:10,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:14:10,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:14:10,841 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 101 [2022-12-11 21:14:10,841 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) [2022-12-11 21:14:10,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:14:10,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 101 [2022-12-11 21:14:10,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:14:11,079 INFO L130 PetriNetUnfolder]: 90/452 cut-off events. [2022-12-11 21:14:11,079 INFO L131 PetriNetUnfolder]: For 139/189 co-relation queries the response was YES. [2022-12-11 21:14:11,080 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. [2022-12-11 21:14:11,081 INFO L137 encePairwiseOnDemand]: 84/101 looper letters, 55 selfloop transitions, 71 changer transitions 18/205 dead transitions. [2022-12-11 21:14:11,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 205 transitions, 1261 flow [2022-12-11 21:14:11,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 21:14:11,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 21:14:11,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1480 transitions. [2022-12-11 21:14:11,084 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.771235018238666 [2022-12-11 21:14:11,085 INFO L295 CegarLoopForPetriNet]: 88 programPoint places, 32 predicate places. [2022-12-11 21:14:11,085 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 205 transitions, 1261 flow [2022-12-11 21:14:11,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 187 transitions, 1117 flow [2022-12-11 21:14:11,087 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 187 transitions, 1117 flow [2022-12-11 21:14:11,087 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) [2022-12-11 21:14:11,088 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:14:11,088 INFO L214 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] [2022-12-11 21:14:11,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 21:14:11,088 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)] === [2022-12-11 21:14:11,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:14:11,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1503192446, now seen corresponding path program 1 times [2022-12-11 21:14:11,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:14:11,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165185395] [2022-12-11 21:14:11,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:14:11,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:14:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:14:11,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:14:11,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:14:11,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165185395] [2022-12-11 21:14:11,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165185395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:14:11,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:14:11,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:14:11,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780739387] [2022-12-11 21:14:11,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:14:11,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:14:11,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:14:11,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:14:11,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:14:11,199 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 101 [2022-12-11 21:14:11,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 187 transitions, 1117 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) [2022-12-11 21:14:11,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:14:11,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 101 [2022-12-11 21:14:11,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:14:11,364 INFO L130 PetriNetUnfolder]: 76/396 cut-off events. [2022-12-11 21:14:11,364 INFO L131 PetriNetUnfolder]: For 183/244 co-relation queries the response was YES. [2022-12-11 21:14:11,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 396 events. 76/396 cut-off events. For 183/244 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1979 event pairs, 0 based on Foata normal form. 11/404 useless extension candidates. Maximal degree in co-relation 1066. Up to 75 conditions per place. [2022-12-11 21:14:11,366 INFO L137 encePairwiseOnDemand]: 86/101 looper letters, 60 selfloop transitions, 80 changer transitions 0/201 dead transitions. [2022-12-11 21:14:11,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 201 transitions, 1485 flow [2022-12-11 21:14:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 21:14:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 21:14:11,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1461 transitions. [2022-12-11 21:14:11,370 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7613340281396561 [2022-12-11 21:14:11,371 INFO L295 CegarLoopForPetriNet]: 88 programPoint places, 50 predicate places. [2022-12-11 21:14:11,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 201 transitions, 1485 flow [2022-12-11 21:14:11,374 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 201 transitions, 1485 flow [2022-12-11 21:14:11,374 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 201 transitions, 1485 flow [2022-12-11 21:14:11,375 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) [2022-12-11 21:14:11,375 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:14:11,375 INFO L214 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] [2022-12-11 21:14:11,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 21:14:11,376 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)] === [2022-12-11 21:14:11,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:14:11,377 INFO L85 PathProgramCache]: Analyzing trace with hash -39155278, now seen corresponding path program 1 times [2022-12-11 21:14:11,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:14:11,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220006532] [2022-12-11 21:14:11,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:14:11,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:14:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:14:11,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:14:11,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:14:11,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220006532] [2022-12-11 21:14:11,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220006532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:14:11,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:14:11,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:14:11,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349986128] [2022-12-11 21:14:11,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:14:11,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:14:11,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:14:11,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:14:11,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:14:11,534 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 101 [2022-12-11 21:14:11,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 201 transitions, 1485 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) [2022-12-11 21:14:11,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:14:11,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 101 [2022-12-11 21:14:11,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:14:11,627 INFO L130 PetriNetUnfolder]: 26/276 cut-off events. [2022-12-11 21:14:11,627 INFO L131 PetriNetUnfolder]: For 159/159 co-relation queries the response was YES. [2022-12-11 21:14:11,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 276 events. 26/276 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1021 event pairs, 13 based on Foata normal form. 10/279 useless extension candidates. Maximal degree in co-relation 651. Up to 54 conditions per place. [2022-12-11 21:14:11,628 INFO L137 encePairwiseOnDemand]: 91/101 looper letters, 19 selfloop transitions, 10 changer transitions 0/117 dead transitions. [2022-12-11 21:14:11,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 117 transitions, 695 flow [2022-12-11 21:14:11,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-11 21:14:11,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-11 21:14:11,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 368 transitions. [2022-12-11 21:14:11,630 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7287128712871287 [2022-12-11 21:14:11,631 INFO L295 CegarLoopForPetriNet]: 88 programPoint places, 43 predicate places. [2022-12-11 21:14:11,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 117 transitions, 695 flow [2022-12-11 21:14:11,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 117 transitions, 695 flow [2022-12-11 21:14:11,633 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 117 transitions, 695 flow [2022-12-11 21:14:11,633 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) [2022-12-11 21:14:11,634 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:14:11,636 INFO L214 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] [2022-12-11 21:14:11,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 21:14:11,639 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)] === [2022-12-11 21:14:11,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:14:11,640 INFO L85 PathProgramCache]: Analyzing trace with hash 936554303, now seen corresponding path program 1 times [2022-12-11 21:14:11,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:14:11,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127029667] [2022-12-11 21:14:11,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:14:11,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:14:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:14:11,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:14:11,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:14:11,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127029667] [2022-12-11 21:14:11,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127029667] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:14:11,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:14:11,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 21:14:11,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980928237] [2022-12-11 21:14:11,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:14:11,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 21:14:11,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:14:11,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 21:14:11,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-11 21:14:11,771 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 101 [2022-12-11 21:14:11,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 117 transitions, 695 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) [2022-12-11 21:14:11,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:14:11,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 101 [2022-12-11 21:14:11,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:14:11,953 INFO L130 PetriNetUnfolder]: 26/272 cut-off events. [2022-12-11 21:14:11,953 INFO L131 PetriNetUnfolder]: For 261/261 co-relation queries the response was YES. [2022-12-11 21:14:11,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 797 conditions, 272 events. 26/272 cut-off events. For 261/261 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 994 event pairs, 13 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 728. Up to 54 conditions per place. [2022-12-11 21:14:11,954 INFO L137 encePairwiseOnDemand]: 85/101 looper letters, 19 selfloop transitions, 34 changer transitions 0/117 dead transitions. [2022-12-11 21:14:11,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 117 transitions, 793 flow [2022-12-11 21:14:11,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-11 21:14:11,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-11 21:14:11,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1686 transitions. [2022-12-11 21:14:11,958 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7257856220404649 [2022-12-11 21:14:11,960 INFO L295 CegarLoopForPetriNet]: 88 programPoint places, 63 predicate places. [2022-12-11 21:14:11,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 117 transitions, 793 flow [2022-12-11 21:14:11,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 117 transitions, 793 flow [2022-12-11 21:14:11,962 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 117 transitions, 793 flow [2022-12-11 21:14:11,962 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) [2022-12-11 21:14:11,962 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:14:11,962 INFO L214 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] [2022-12-11 21:14:11,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 21:14:11,963 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)] === [2022-12-11 21:14:11,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:14:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1533431490, now seen corresponding path program 1 times [2022-12-11 21:14:11,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:14:11,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551241891] [2022-12-11 21:14:11,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:14:11,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:14:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:14:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:14:12,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:14:12,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551241891] [2022-12-11 21:14:12,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551241891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:14:12,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:14:12,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 21:14:12,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976907553] [2022-12-11 21:14:12,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:14:12,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 21:14:12,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:14:12,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 21:14:12,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-11 21:14:12,098 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 101 [2022-12-11 21:14:12,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 117 transitions, 793 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) [2022-12-11 21:14:12,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:14:12,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 101 [2022-12-11 21:14:12,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:14:12,282 INFO L130 PetriNetUnfolder]: 26/268 cut-off events. [2022-12-11 21:14:12,282 INFO L131 PetriNetUnfolder]: For 388/388 co-relation queries the response was YES. [2022-12-11 21:14:12,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 268 events. 26/268 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 961 event pairs, 13 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 801. Up to 54 conditions per place. [2022-12-11 21:14:12,283 INFO L137 encePairwiseOnDemand]: 85/101 looper letters, 17 selfloop transitions, 35 changer transitions 0/115 dead transitions. [2022-12-11 21:14:12,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 115 transitions, 883 flow [2022-12-11 21:14:12,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-11 21:14:12,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-11 21:14:12,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1538 transitions. [2022-12-11 21:14:12,287 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7251296558227251 [2022-12-11 21:14:12,288 INFO L295 CegarLoopForPetriNet]: 88 programPoint places, 81 predicate places. [2022-12-11 21:14:12,288 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 115 transitions, 883 flow [2022-12-11 21:14:12,289 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 115 transitions, 883 flow [2022-12-11 21:14:12,289 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 115 transitions, 883 flow [2022-12-11 21:14:12,290 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) [2022-12-11 21:14:12,290 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:14:12,290 INFO L214 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] [2022-12-11 21:14:12,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 21:14:12,290 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)] === [2022-12-11 21:14:12,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:14:12,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2103358848, now seen corresponding path program 1 times [2022-12-11 21:14:12,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:14:12,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974627334] [2022-12-11 21:14:12,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:14:12,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:14:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:14:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:14:12,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:14:12,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974627334] [2022-12-11 21:14:12,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974627334] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:14:12,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:14:12,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:14:12,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134822698] [2022-12-11 21:14:12,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:14:12,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:14:12,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:14:12,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:14:12,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:14:12,446 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 101 [2022-12-11 21:14:12,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 115 transitions, 883 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) [2022-12-11 21:14:12,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:14:12,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 101 [2022-12-11 21:14:12,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:14:12,509 INFO L130 PetriNetUnfolder]: 12/191 cut-off events. [2022-12-11 21:14:12,510 INFO L131 PetriNetUnfolder]: For 300/302 co-relation queries the response was YES. [2022-12-11 21:14:12,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 191 events. 12/191 cut-off events. For 300/302 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 489 event pairs, 1 based on Foata normal form. 13/204 useless extension candidates. Maximal degree in co-relation 635. Up to 38 conditions per place. [2022-12-11 21:14:12,511 INFO L137 encePairwiseOnDemand]: 96/101 looper letters, 24 selfloop transitions, 7 changer transitions 0/112 dead transitions. [2022-12-11 21:14:12,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 112 transitions, 883 flow [2022-12-11 21:14:12,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-11 21:14:12,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-11 21:14:12,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 364 transitions. [2022-12-11 21:14:12,513 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7207920792079208 [2022-12-11 21:14:12,514 INFO L295 CegarLoopForPetriNet]: 88 programPoint places, 85 predicate places. [2022-12-11 21:14:12,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 112 transitions, 883 flow [2022-12-11 21:14:12,515 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 112 transitions, 883 flow [2022-12-11 21:14:12,516 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 112 transitions, 883 flow [2022-12-11 21:14:12,516 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) [2022-12-11 21:14:12,516 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:14:12,517 INFO L214 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] [2022-12-11 21:14:12,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 21:14:12,518 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)] === [2022-12-11 21:14:12,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:14:12,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1329513679, now seen corresponding path program 1 times [2022-12-11 21:14:12,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:14:12,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333934531] [2022-12-11 21:14:12,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:14:12,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:14:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:14:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:14:12,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:14:12,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333934531] [2022-12-11 21:14:12,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333934531] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:14:12,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:14:12,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 21:14:12,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649047619] [2022-12-11 21:14:12,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:14:12,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 21:14:12,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:14:12,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 21:14:12,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-11 21:14:12,684 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 101 [2022-12-11 21:14:12,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 112 transitions, 883 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) [2022-12-11 21:14:12,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:14:12,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 101 [2022-12-11 21:14:12,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:14:12,833 INFO L130 PetriNetUnfolder]: 12/189 cut-off events. [2022-12-11 21:14:12,833 INFO L131 PetriNetUnfolder]: For 405/406 co-relation queries the response was YES. [2022-12-11 21:14:12,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 189 events. 12/189 cut-off events. For 405/406 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 489 event pairs, 1 based on Foata normal form. 2/191 useless extension candidates. Maximal degree in co-relation 693. Up to 38 conditions per place. [2022-12-11 21:14:12,834 INFO L137 encePairwiseOnDemand]: 87/101 looper letters, 0 selfloop transitions, 0 changer transitions 110/110 dead transitions. [2022-12-11 21:14:12,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 110 transitions, 959 flow [2022-12-11 21:14:12,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 21:14:12,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 21:14:12,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1170 transitions. [2022-12-11 21:14:12,836 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.724009900990099 [2022-12-11 21:14:12,837 INFO L295 CegarLoopForPetriNet]: 88 programPoint places, 98 predicate places. [2022-12-11 21:14:12,837 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 110 transitions, 959 flow [2022-12-11 21:14:12,837 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 21:14:12,837 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 21:14:12,838 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) [2022-12-11 21:14:12,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 21:14:12,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-12-11 21:14:12,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-12-11 21:14:12,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 21:14:12,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 21:14:12,841 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:14:12,843 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 21:14:12,843 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 21:14:12,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 09:14:12 BasicIcfg [2022-12-11 21:14:12,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 21:14:12,850 INFO L158 Benchmark]: Toolchain (without parser) took 4237.91ms. Allocated memory was 183.5MB in the beginning and 318.8MB in the end (delta: 135.3MB). Free memory was 159.2MB in the beginning and 254.9MB in the end (delta: -95.7MB). Peak memory consumption was 39.4MB. Max. memory is 8.0GB. [2022-12-11 21:14:12,850 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:14:12,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.80ms. Allocated memory is still 183.5MB. Free memory was 159.2MB in the beginning and 140.1MB in the end (delta: 19.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-11 21:14:12,850 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.84ms. Allocated memory is still 183.5MB. Free memory was 139.6MB in the beginning and 138.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 21:14:12,851 INFO L158 Benchmark]: Boogie Preprocessor took 34.34ms. Allocated memory is still 183.5MB. Free memory was 137.5MB in the beginning and 136.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 21:14:12,851 INFO L158 Benchmark]: RCFGBuilder took 396.25ms. Allocated memory is still 183.5MB. Free memory was 136.5MB in the beginning and 121.6MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-11 21:14:12,851 INFO L158 Benchmark]: TraceAbstraction took 3414.26ms. Allocated memory was 183.5MB in the beginning and 318.8MB in the end (delta: 135.3MB). Free memory was 120.2MB in the beginning and 254.9MB in the end (delta: -134.7MB). Peak memory consumption was 563.2kB. Max. memory is 8.0GB. [2022-12-11 21:14:12,853 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 183.5MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 352.80ms. Allocated memory is still 183.5MB. Free memory was 159.2MB in the beginning and 140.1MB in the end (delta: 19.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.84ms. Allocated memory is still 183.5MB. Free memory was 139.6MB in the beginning and 138.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.34ms. Allocated memory is still 183.5MB. Free memory was 137.5MB in the beginning and 136.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 396.25ms. Allocated memory is still 183.5MB. Free memory was 136.5MB in the beginning and 121.6MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3414.26ms. Allocated memory was 183.5MB in the beginning and 318.8MB in the end (delta: 135.3MB). Free memory was 120.2MB in the beginning and 254.9MB in the end (delta: -134.7MB). Peak memory consumption was 563.2kB. 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: 3.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 534 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 534 mSDsluCounter, 450 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 324 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 786 IncrementalHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 126 mSDtfsCounter, 786 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=1485occurred 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: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 1103 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s 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! [2022-12-11 21:14:12,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...