/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b
[2022-12-05 20:46:19,060 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-12-05 20:46:19,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-05 20:46:19,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-05 20:46:19,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-05 20:46:19,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-05 20:46:19,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-05 20:46:19,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-05 20:46:19,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-05 20:46:19,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-05 20:46:19,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-12-05 20:46:19,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-05 20:46:19,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-05 20:46:19,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-05 20:46:19,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-05 20:46:19,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-05 20:46:19,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-05 20:46:19,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-05 20:46:19,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-05 20:46:19,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-05 20:46:19,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-05 20:46:19,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-05 20:46:19,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-12-05 20:46:19,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-05 20:46:19,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-05 20:46:19,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-05 20:46:19,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-05 20:46:19,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-05 20:46:19,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-05 20:46:19,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-05 20:46:19,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-05 20:46:19,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-05 20:46:19,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-05 20:46:19,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-05 20:46:19,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-05 20:46:19,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-05 20:46:19,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-05 20:46:19,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-05 20:46:19,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-05 20:46:19,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-05 20:46:19,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-12-05 20:46:19,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf
[2022-12-05 20:46:19,153 INFO L113 SettingsManager]: Loading preferences was successful
[2022-12-05 20:46:19,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-05 20:46:19,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-05 20:46:19,155 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-05 20:46:19,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-05 20:46:19,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-12-05 20:46:19,156 INFO L138 SettingsManager]: * Use SBE=true
[2022-12-05 20:46:19,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-05 20:46:19,156 INFO L138 SettingsManager]: * sizeof long=4
[2022-12-05 20:46:19,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-12-05 20:46:19,156 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-12-05 20:46:19,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-12-05 20:46:19,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-12-05 20:46:19,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-05 20:46:19,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-12-05 20:46:19,157 INFO L138 SettingsManager]: * sizeof long double=12
[2022-12-05 20:46:19,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-12-05 20:46:19,157 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-12-05 20:46:19,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-12-05 20:46:19,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-05 20:46:19,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-12-05 20:46:19,157 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-12-05 20:46:19,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-12-05 20:46:19,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-05 20:46:19,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-05 20:46:19,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-12-05 20:46:19,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-05 20:46:19,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-12-05 20:46:19,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-05 20:46:19,158 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-12-05 20:46:19,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-12-05 20:46:19,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-05 20:46:19,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-05 20:46:19,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-05 20:46:19,421 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-12-05 20:46:19,422 INFO L275 PluginConnector]: CDTParser initialized
[2022-12-05 20:46:19,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i
[2022-12-05 20:46:20,388 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-12-05 20:46:20,574 INFO L351 CDTParser]: Found 1 translation units.
[2022-12-05 20:46:20,574 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i
[2022-12-05 20:46:20,582 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0313e391f/21f7e31b33fc4b0393f0c5f79b25d51a/FLAGc12aae8df
[2022-12-05 20:46:20,591 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0313e391f/21f7e31b33fc4b0393f0c5f79b25d51a
[2022-12-05 20:46:20,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-05 20:46:20,599 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-12-05 20:46:20,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-05 20:46:20,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-05 20:46:20,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-05 20:46:20,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:20,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d83172a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20, skipping insertion in model container
[2022-12-05 20:46:20,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:20,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-12-05 20:46:20,651 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-12-05 20:46:20,778 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_27-multiple-protecting2_true.i[1097,1110]
[2022-12-05 20:46:20,905 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-05 20:46:20,916 INFO L203 MainTranslator]: Completed pre-run
[2022-12-05 20:46:20,925 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_27-multiple-protecting2_true.i[1097,1110]
[2022-12-05 20:46:20,961 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-05 20:46:20,986 INFO L208 MainTranslator]: Completed translation
[2022-12-05 20:46:20,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20 WrapperNode
[2022-12-05 20:46:20,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-05 20:46:20,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-05 20:46:20,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-05 20:46:20,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-05 20:46:20,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:21,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:21,037 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 104
[2022-12-05 20:46:21,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-05 20:46:21,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-05 20:46:21,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-05 20:46:21,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-12-05 20:46:21,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:21,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:21,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:21,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:21,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:21,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:21,066 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:21,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:21,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-05 20:46:21,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-05 20:46:21,073 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-12-05 20:46:21,073 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-12-05 20:46:21,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (1/1) ...
[2022-12-05 20:46:21,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-05 20:46:21,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-12-05 20:46:21,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-05 20:46:21,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-05 20:46:21,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-12-05 20:46:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun
[2022-12-05 20:46:21,122 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun
[2022-12-05 20:46:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-12-05 20:46:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2022-12-05 20:46:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-05 20:46:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-12-05 20:46:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2022-12-05 20:46:21,123 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2022-12-05 20:46:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-12-05 20:46:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-05 20:46:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-05 20:46:21,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-05 20:46:21,125 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2022-12-05 20:46:21,279 INFO L236 CfgBuilder]: Building ICFG
[2022-12-05 20:46:21,281 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-05 20:46:21,489 INFO L277 CfgBuilder]: Performing block encoding
[2022-12-05 20:46:21,494 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-05 20:46:21,494 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2022-12-05 20:46:21,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:46:21 BoogieIcfgContainer
[2022-12-05 20:46:21,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-05 20:46:21,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-05 20:46:21,497 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-12-05 20:46:21,499 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-12-05 20:46:21,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:46:20" (1/3) ...
[2022-12-05 20:46:21,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48250df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:46:21, skipping insertion in model container
[2022-12-05 20:46:21,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:20" (2/3) ...
[2022-12-05 20:46:21,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48250df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:46:21, skipping insertion in model container
[2022-12-05 20:46:21,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:46:21" (3/3) ...
[2022-12-05 20:46:21,500 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i
[2022-12-05 20:46:21,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-05 20:46:21,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2022-12-05 20:46:21,512 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-12-05 20:46:21,569 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2022-12-05 20:46:21,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 147 transitions, 310 flow
[2022-12-05 20:46:21,681 INFO L130 PetriNetUnfolder]: 4/145 cut-off events.
[2022-12-05 20:46:21,681 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2022-12-05 20:46:21,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 145 events. 4/145 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place.
[2022-12-05 20:46:21,685 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 147 transitions, 310 flow
[2022-12-05 20:46:21,691 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 127 transitions, 260 flow
[2022-12-05 20:46:21,692 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-12-05 20:46:21,708 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 127 transitions, 260 flow
[2022-12-05 20:46:21,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 127 transitions, 260 flow
[2022-12-05 20:46:21,752 INFO L130 PetriNetUnfolder]: 3/127 cut-off events.
[2022-12-05 20:46:21,752 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-05 20:46:21,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 127 events. 3/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place.
[2022-12-05 20:46:21,756 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 127 transitions, 260 flow
[2022-12-05 20:46:21,757 INFO L188 LiptonReduction]: Number of co-enabled transitions 4248
[2022-12-05 20:46:25,603 INFO L203 LiptonReduction]: Total number of compositions: 98
[2022-12-05 20:46:25,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-05 20:46:25,620 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;@7256c69c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-05 20:46:25,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2022-12-05 20:46:25,623 INFO L130 PetriNetUnfolder]: 0/19 cut-off events.
[2022-12-05 20:46:25,623 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-05 20:46:25,623 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:46:25,624 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:46:25,624 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] ===
[2022-12-05 20:46:25,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:46:25,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1116994421, now seen corresponding path program 1 times
[2022-12-05 20:46:25,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:46:25,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846838371]
[2022-12-05 20:46:25,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:46:25,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:46:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:46:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:46:25,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:46:25,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846838371]
[2022-12-05 20:46:25,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846838371] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:46:25,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:46:25,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-05 20:46:25,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010834757]
[2022-12-05 20:46:25,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:46:25,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-05 20:46:25,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:46:25,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-05 20:46:25,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-05 20:46:25,792 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42
[2022-12-05 20:46:25,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 90 flow. Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:25,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:46:25,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42
[2022-12-05 20:46:25,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:46:26,007 INFO L130 PetriNetUnfolder]: 1414/2452 cut-off events.
[2022-12-05 20:46:26,007 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2022-12-05 20:46:26,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4745 conditions, 2452 events. 1414/2452 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 13253 event pairs, 1414 based on Foata normal form. 0/2253 useless extension candidates. Maximal degree in co-relation 4735. Up to 2272 conditions per place.
[2022-12-05 20:46:26,020 INFO L137 encePairwiseOnDemand]: 39/42 looper letters, 31 selfloop transitions, 0 changer transitions 0/39 dead transitions.
[2022-12-05 20:46:26,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 39 transitions, 146 flow
[2022-12-05 20:46:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-05 20:46:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2022-12-05 20:46:26,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 50 transitions.
[2022-12-05 20:46:26,028 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952
[2022-12-05 20:46:26,029 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 90 flow. Second operand 2 states and 50 transitions.
[2022-12-05 20:46:26,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 39 transitions, 146 flow
[2022-12-05 20:46:26,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 39 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places.
[2022-12-05 20:46:26,032 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 82 flow
[2022-12-05 20:46:26,033 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=45, PETRI_TRANSITIONS=39}
[2022-12-05 20:46:26,036 INFO L294 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places.
[2022-12-05 20:46:26,036 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 82 flow
[2022-12-05 20:46:26,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:26,036 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:46:26,036 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:46:26,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-12-05 20:46:26,036 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] ===
[2022-12-05 20:46:26,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:46:26,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1116984912, now seen corresponding path program 1 times
[2022-12-05 20:46:26,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:46:26,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912759221]
[2022-12-05 20:46:26,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:46:26,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:46:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:46:26,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:46:26,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:46:26,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912759221]
[2022-12-05 20:46:26,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912759221] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:46:26,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:46:26,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-12-05 20:46:26,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084846954]
[2022-12-05 20:46:26,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:46:26,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-05 20:46:26,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:46:26,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-05 20:46:26,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-05 20:46:26,173 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42
[2022-12-05 20:46:26,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:26,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:46:26,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42
[2022-12-05 20:46:26,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:46:26,376 INFO L130 PetriNetUnfolder]: 1297/2253 cut-off events.
[2022-12-05 20:46:26,377 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-05 20:46:26,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4365 conditions, 2253 events. 1297/2253 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 12713 event pairs, 452 based on Foata normal form. 21/2139 useless extension candidates. Maximal degree in co-relation 4362. Up to 1465 conditions per place.
[2022-12-05 20:46:26,386 INFO L137 encePairwiseOnDemand]: 37/42 looper letters, 48 selfloop transitions, 2 changer transitions 0/58 dead transitions.
[2022-12-05 20:46:26,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 58 transitions, 222 flow
[2022-12-05 20:46:26,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-05 20:46:26,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-05 20:46:26,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions.
[2022-12-05 20:46:26,388 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112
[2022-12-05 20:46:26,388 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 82 flow. Second operand 3 states and 77 transitions.
[2022-12-05 20:46:26,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 58 transitions, 222 flow
[2022-12-05 20:46:26,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 58 transitions, 222 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-12-05 20:46:26,389 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 94 flow
[2022-12-05 20:46:26,390 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=48, PETRI_TRANSITIONS=39}
[2022-12-05 20:46:26,390 INFO L294 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places.
[2022-12-05 20:46:26,390 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 94 flow
[2022-12-05 20:46:26,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:26,390 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:46:26,390 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:46:26,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-12-05 20:46:26,391 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] ===
[2022-12-05 20:46:26,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:46:26,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1727831713, now seen corresponding path program 1 times
[2022-12-05 20:46:26,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:46:26,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173176901]
[2022-12-05 20:46:26,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:46:26,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:46:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:46:26,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:46:26,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:46:26,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173176901]
[2022-12-05 20:46:26,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173176901] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:46:26,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:46:26,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-05 20:46:26,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078115357]
[2022-12-05 20:46:26,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:46:26,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-05 20:46:26,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:46:26,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-05 20:46:26,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-05 20:46:26,510 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 42
[2022-12-05 20:46:26,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:26,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:46:26,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 42
[2022-12-05 20:46:26,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:46:26,657 INFO L130 PetriNetUnfolder]: 731/1430 cut-off events.
[2022-12-05 20:46:26,658 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES.
[2022-12-05 20:46:26,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3060 conditions, 1430 events. 731/1430 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7347 event pairs, 224 based on Foata normal form. 171/1574 useless extension candidates. Maximal degree in co-relation 3055. Up to 1145 conditions per place.
[2022-12-05 20:46:26,664 INFO L137 encePairwiseOnDemand]: 36/42 looper letters, 64 selfloop transitions, 6 changer transitions 0/72 dead transitions.
[2022-12-05 20:46:26,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 72 transitions, 311 flow
[2022-12-05 20:46:26,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-12-05 20:46:26,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2022-12-05 20:46:26,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions.
[2022-12-05 20:46:26,667 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616
[2022-12-05 20:46:26,667 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 94 flow. Second operand 4 states and 80 transitions.
[2022-12-05 20:46:26,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 72 transitions, 311 flow
[2022-12-05 20:46:26,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 72 transitions, 305 flow, removed 0 selfloop flow, removed 2 redundant places.
[2022-12-05 20:46:26,671 INFO L231 Difference]: Finished difference. Result has 50 places, 42 transitions, 119 flow
[2022-12-05 20:46:26,671 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=50, PETRI_TRANSITIONS=42}
[2022-12-05 20:46:26,672 INFO L294 CegarLoopForPetriNet]: 46 programPoint places, 4 predicate places.
[2022-12-05 20:46:26,672 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 42 transitions, 119 flow
[2022-12-05 20:46:26,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:26,673 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:46:26,673 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:46:26,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-12-05 20:46:26,674 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] ===
[2022-12-05 20:46:26,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:46:26,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1863751913, now seen corresponding path program 1 times
[2022-12-05 20:46:26,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:46:26,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666579380]
[2022-12-05 20:46:26,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:46:26,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:46:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:46:26,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:46:26,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:46:26,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666579380]
[2022-12-05 20:46:26,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666579380] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:46:26,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:46:26,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-12-05 20:46:26,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599909274]
[2022-12-05 20:46:26,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:46:26,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-05 20:46:26,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:46:26,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-05 20:46:26,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-05 20:46:26,787 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42
[2022-12-05 20:46:26,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:26,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:46:26,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42
[2022-12-05 20:46:26,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:46:26,876 INFO L130 PetriNetUnfolder]: 482/1048 cut-off events.
[2022-12-05 20:46:26,876 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES.
[2022-12-05 20:46:26,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2381 conditions, 1048 events. 482/1048 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5570 event pairs, 98 based on Foata normal form. 0/1028 useless extension candidates. Maximal degree in co-relation 2375. Up to 752 conditions per place.
[2022-12-05 20:46:26,882 INFO L137 encePairwiseOnDemand]: 39/42 looper letters, 51 selfloop transitions, 2 changer transitions 0/62 dead transitions.
[2022-12-05 20:46:26,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 62 transitions, 281 flow
[2022-12-05 20:46:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-05 20:46:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-05 20:46:26,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions.
[2022-12-05 20:46:26,886 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031
[2022-12-05 20:46:26,886 INFO L175 Difference]: Start difference. First operand has 50 places, 42 transitions, 119 flow. Second operand 3 states and 76 transitions.
[2022-12-05 20:46:26,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 62 transitions, 281 flow
[2022-12-05 20:46:26,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 62 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-12-05 20:46:26,889 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 126 flow
[2022-12-05 20:46:26,889 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=52, PETRI_TRANSITIONS=42}
[2022-12-05 20:46:26,891 INFO L294 CegarLoopForPetriNet]: 46 programPoint places, 6 predicate places.
[2022-12-05 20:46:26,891 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 126 flow
[2022-12-05 20:46:26,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:26,891 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:46:26,891 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:46:26,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-12-05 20:46:26,891 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] ===
[2022-12-05 20:46:26,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:46:26,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1809141128, now seen corresponding path program 1 times
[2022-12-05 20:46:26,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:46:26,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789686283]
[2022-12-05 20:46:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:46:26,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:46:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:46:27,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:46:27,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:46:27,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789686283]
[2022-12-05 20:46:27,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789686283] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:46:27,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:46:27,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-05 20:46:27,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328342454]
[2022-12-05 20:46:27,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:46:27,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-12-05 20:46:27,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:46:27,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-12-05 20:46:27,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-12-05 20:46:27,026 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42
[2022-12-05 20:46:27,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:27,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:46:27,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42
[2022-12-05 20:46:27,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:46:27,189 INFO L130 PetriNetUnfolder]: 435/984 cut-off events.
[2022-12-05 20:46:27,189 INFO L131 PetriNetUnfolder]: For 212/212 co-relation queries the response was YES.
[2022-12-05 20:46:27,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2327 conditions, 984 events. 435/984 cut-off events. For 212/212 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5426 event pairs, 300 based on Foata normal form. 43/1020 useless extension candidates. Maximal degree in co-relation 2320. Up to 618 conditions per place.
[2022-12-05 20:46:27,193 INFO L137 encePairwiseOnDemand]: 35/42 looper letters, 67 selfloop transitions, 4 changer transitions 0/80 dead transitions.
[2022-12-05 20:46:27,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 80 transitions, 370 flow
[2022-12-05 20:46:27,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-12-05 20:46:27,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2022-12-05 20:46:27,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions.
[2022-12-05 20:46:27,194 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333
[2022-12-05 20:46:27,194 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 126 flow. Second operand 5 states and 112 transitions.
[2022-12-05 20:46:27,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 80 transitions, 370 flow
[2022-12-05 20:46:27,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 80 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places.
[2022-12-05 20:46:27,197 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 139 flow
[2022-12-05 20:46:27,197 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=55, PETRI_TRANSITIONS=42}
[2022-12-05 20:46:27,199 INFO L294 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places.
[2022-12-05 20:46:27,199 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 139 flow
[2022-12-05 20:46:27,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:27,200 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:46:27,200 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:46:27,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-12-05 20:46:27,200 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] ===
[2022-12-05 20:46:27,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:46:27,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1435581926, now seen corresponding path program 1 times
[2022-12-05 20:46:27,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:46:27,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024695987]
[2022-12-05 20:46:27,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:46:27,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:46:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:46:27,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:46:27,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:46:27,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024695987]
[2022-12-05 20:46:27,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024695987] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:46:27,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:46:27,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-12-05 20:46:27,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290160070]
[2022-12-05 20:46:27,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:46:27,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-12-05 20:46:27,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:46:27,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-12-05 20:46:27,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-12-05 20:46:27,328 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 42
[2022-12-05 20:46:27,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:27,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:46:27,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 42
[2022-12-05 20:46:27,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:46:27,450 INFO L130 PetriNetUnfolder]: 452/1130 cut-off events.
[2022-12-05 20:46:27,450 INFO L131 PetriNetUnfolder]: For 446/446 co-relation queries the response was YES.
[2022-12-05 20:46:27,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3010 conditions, 1130 events. 452/1130 cut-off events. For 446/446 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 6414 event pairs, 217 based on Foata normal form. 219/1349 useless extension candidates. Maximal degree in co-relation 3002. Up to 584 conditions per place.
[2022-12-05 20:46:27,455 INFO L137 encePairwiseOnDemand]: 24/42 looper letters, 49 selfloop transitions, 19 changer transitions 1/71 dead transitions.
[2022-12-05 20:46:27,455 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 377 flow
[2022-12-05 20:46:27,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-12-05 20:46:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2022-12-05 20:46:27,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions.
[2022-12-05 20:46:27,456 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616
[2022-12-05 20:46:27,456 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 139 flow. Second operand 4 states and 80 transitions.
[2022-12-05 20:46:27,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 377 flow
[2022-12-05 20:46:27,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 71 transitions, 365 flow, removed 0 selfloop flow, removed 4 redundant places.
[2022-12-05 20:46:27,461 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 235 flow
[2022-12-05 20:46:27,461 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=55, PETRI_TRANSITIONS=52}
[2022-12-05 20:46:27,463 INFO L294 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places.
[2022-12-05 20:46:27,463 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 235 flow
[2022-12-05 20:46:27,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:27,464 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:46:27,464 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:46:27,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-12-05 20:46:27,464 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] ===
[2022-12-05 20:46:27,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:46:27,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1877465155, now seen corresponding path program 1 times
[2022-12-05 20:46:27,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:46:27,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986871621]
[2022-12-05 20:46:27,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:46:27,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:46:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:46:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:46:27,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:46:27,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986871621]
[2022-12-05 20:46:27,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986871621] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:46:27,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:46:27,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-12-05 20:46:27,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367332207]
[2022-12-05 20:46:27,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:46:27,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-12-05 20:46:27,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:46:27,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-12-05 20:46:27,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-12-05 20:46:27,651 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 42
[2022-12-05 20:46:27,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 235 flow. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:27,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:46:27,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 42
[2022-12-05 20:46:27,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:46:27,736 INFO L130 PetriNetUnfolder]: 156/498 cut-off events.
[2022-12-05 20:46:27,736 INFO L131 PetriNetUnfolder]: For 322/322 co-relation queries the response was YES.
[2022-12-05 20:46:27,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1615 conditions, 498 events. 156/498 cut-off events. For 322/322 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2398 event pairs, 42 based on Foata normal form. 55/553 useless extension candidates. Maximal degree in co-relation 1606. Up to 461 conditions per place.
[2022-12-05 20:46:27,738 INFO L137 encePairwiseOnDemand]: 38/42 looper letters, 41 selfloop transitions, 5 changer transitions 11/59 dead transitions.
[2022-12-05 20:46:27,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 59 transitions, 370 flow
[2022-12-05 20:46:27,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-12-05 20:46:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2022-12-05 20:46:27,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions.
[2022-12-05 20:46:27,740 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32142857142857145
[2022-12-05 20:46:27,740 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 235 flow. Second operand 4 states and 54 transitions.
[2022-12-05 20:46:27,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 59 transitions, 370 flow
[2022-12-05 20:46:27,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 364 flow, removed 0 selfloop flow, removed 3 redundant places.
[2022-12-05 20:46:27,742 INFO L231 Difference]: Finished difference. Result has 52 places, 39 transitions, 171 flow
[2022-12-05 20:46:27,743 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=171, PETRI_PLACES=52, PETRI_TRANSITIONS=39}
[2022-12-05 20:46:27,743 INFO L294 CegarLoopForPetriNet]: 46 programPoint places, 6 predicate places.
[2022-12-05 20:46:27,743 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 39 transitions, 171 flow
[2022-12-05 20:46:27,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:27,743 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:46:27,743 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:46:27,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-12-05 20:46:27,743 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] ===
[2022-12-05 20:46:27,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:46:27,744 INFO L85 PathProgramCache]: Analyzing trace with hash 769024362, now seen corresponding path program 1 times
[2022-12-05 20:46:27,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:46:27,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135763466]
[2022-12-05 20:46:27,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:46:27,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:46:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:46:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:46:27,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:46:27,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135763466]
[2022-12-05 20:46:27,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135763466] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:46:27,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:46:27,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-12-05 20:46:27,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301421070]
[2022-12-05 20:46:27,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:46:27,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-12-05 20:46:27,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:46:27,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-12-05 20:46:27,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2022-12-05 20:46:27,915 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 42
[2022-12-05 20:46:27,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:27,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:46:27,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 42
[2022-12-05 20:46:27,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:46:27,984 INFO L130 PetriNetUnfolder]: 78/278 cut-off events.
[2022-12-05 20:46:27,984 INFO L131 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES.
[2022-12-05 20:46:27,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 278 events. 78/278 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1174 event pairs, 21 based on Foata normal form. 24/302 useless extension candidates. Maximal degree in co-relation 905. Up to 169 conditions per place.
[2022-12-05 20:46:27,985 INFO L137 encePairwiseOnDemand]: 38/42 looper letters, 42 selfloop transitions, 6 changer transitions 0/50 dead transitions.
[2022-12-05 20:46:27,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 50 transitions, 320 flow
[2022-12-05 20:46:27,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-12-05 20:46:27,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2022-12-05 20:46:27,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions.
[2022-12-05 20:46:27,986 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.30952380952380953
[2022-12-05 20:46:27,986 INFO L175 Difference]: Start difference. First operand has 52 places, 39 transitions, 171 flow. Second operand 4 states and 52 transitions.
[2022-12-05 20:46:27,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 50 transitions, 320 flow
[2022-12-05 20:46:27,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 50 transitions, 303 flow, removed 0 selfloop flow, removed 3 redundant places.
[2022-12-05 20:46:27,987 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 168 flow
[2022-12-05 20:46:27,987 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=48, PETRI_TRANSITIONS=38}
[2022-12-05 20:46:27,988 INFO L294 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places.
[2022-12-05 20:46:27,988 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 168 flow
[2022-12-05 20:46:27,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:27,988 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:46:27,988 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]
[2022-12-05 20:46:27,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-12-05 20:46:27,988 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] ===
[2022-12-05 20:46:27,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:46:27,989 INFO L85 PathProgramCache]: Analyzing trace with hash -832208399, now seen corresponding path program 1 times
[2022-12-05 20:46:27,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:46:27,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146772147]
[2022-12-05 20:46:27,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:46:27,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:46:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:46:28,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:46:28,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:46:28,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146772147]
[2022-12-05 20:46:28,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146772147] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:46:28,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:46:28,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-05 20:46:28,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079990945]
[2022-12-05 20:46:28,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:46:28,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-05 20:46:28,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:46:28,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-05 20:46:28,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-12-05 20:46:28,067 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42
[2022-12-05 20:46:28,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:28,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:46:28,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42
[2022-12-05 20:46:28,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:46:28,123 INFO L130 PetriNetUnfolder]: 67/260 cut-off events.
[2022-12-05 20:46:28,123 INFO L131 PetriNetUnfolder]: For 164/164 co-relation queries the response was YES.
[2022-12-05 20:46:28,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 260 events. 67/260 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1093 event pairs, 50 based on Foata normal form. 4/263 useless extension candidates. Maximal degree in co-relation 798. Up to 184 conditions per place.
[2022-12-05 20:46:28,124 INFO L137 encePairwiseOnDemand]: 38/42 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions.
[2022-12-05 20:46:28,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 290 flow
[2022-12-05 20:46:28,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-12-05 20:46:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2022-12-05 20:46:28,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions.
[2022-12-05 20:46:28,125 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.40476190476190477
[2022-12-05 20:46:28,125 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 168 flow. Second operand 4 states and 68 transitions.
[2022-12-05 20:46:28,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 290 flow
[2022-12-05 20:46:28,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 48 transitions, 282 flow, removed 0 selfloop flow, removed 3 redundant places.
[2022-12-05 20:46:28,126 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow
[2022-12-05 20:46:28,126 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0}
[2022-12-05 20:46:28,127 INFO L294 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places.
[2022-12-05 20:46:28,127 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow
[2022-12-05 20:46:28,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:46:28,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining)
[2022-12-05 20:46:28,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining)
[2022-12-05 20:46:28,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining)
[2022-12-05 20:46:28,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining)
[2022-12-05 20:46:28,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining)
[2022-12-05 20:46:28,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining)
[2022-12-05 20:46:28,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-12-05 20:46:28,129 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:46:28,131 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-12-05 20:46:28,131 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-12-05 20:46:28,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:46:28 BasicIcfg
[2022-12-05 20:46:28,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-12-05 20:46:28,134 INFO L158 Benchmark]: Toolchain (without parser) took 7534.66ms. Allocated memory was 178.3MB in the beginning and 256.9MB in the end (delta: 78.6MB). Free memory was 147.4MB in the beginning and 225.5MB in the end (delta: -78.1MB). Peak memory consumption was 147.3MB. Max. memory is 8.0GB.
[2022-12-05 20:46:28,134 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-12-05 20:46:28,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.37ms. Allocated memory is still 178.3MB. Free memory was 147.4MB in the beginning and 127.5MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB.
[2022-12-05 20:46:28,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.35ms. Allocated memory is still 178.3MB. Free memory was 127.5MB in the beginning and 125.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-12-05 20:46:28,135 INFO L158 Benchmark]: Boogie Preprocessor took 31.13ms. Allocated memory is still 178.3MB. Free memory was 125.4MB in the beginning and 124.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-12-05 20:46:28,136 INFO L158 Benchmark]: RCFGBuilder took 422.69ms. Allocated memory is still 178.3MB. Free memory was 123.7MB in the beginning and 143.8MB in the end (delta: -20.1MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB.
[2022-12-05 20:46:28,138 INFO L158 Benchmark]: TraceAbstraction took 6636.54ms. Allocated memory was 178.3MB in the beginning and 256.9MB in the end (delta: 78.6MB). Free memory was 143.3MB in the beginning and 225.5MB in the end (delta: -82.3MB). Peak memory consumption was 143.8MB. Max. memory is 8.0GB.
[2022-12-05 20:46:28,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 391.37ms. Allocated memory is still 178.3MB. Free memory was 147.4MB in the beginning and 127.5MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 45.35ms. Allocated memory is still 178.3MB. Free memory was 127.5MB in the beginning and 125.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 31.13ms. Allocated memory is still 178.3MB. Free memory was 125.4MB in the beginning and 124.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 422.69ms. Allocated memory is still 178.3MB. Free memory was 123.7MB in the beginning and 143.8MB in the end (delta: -20.1MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB.
* TraceAbstraction took 6636.54ms. Allocated memory was 178.3MB in the beginning and 256.9MB in the end (delta: 78.6MB). Free memory was 143.3MB in the beginning and 225.5MB in the end (delta: -82.3MB). Peak memory consumption was 143.8MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 3.8s, 131 PlacesBefore, 46 PlacesAfterwards, 127 TransitionsBefore, 42 TransitionsAfterwards, 4248 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 36 TrivialYvCompositions, 51 ConcurrentYvCompositions, 0 ChoiceCompositions, 98 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3142, independent: 2954, independent conditional: 2954, independent unconditional: 0, dependent: 188, dependent conditional: 188, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3142, independent: 2954, independent conditional: 0, independent unconditional: 2954, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3142, independent: 2954, independent conditional: 0, independent unconditional: 2954, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142, independent: 2954, independent conditional: 0, independent unconditional: 2954, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2428, independent: 2338, independent conditional: 0, independent unconditional: 2338, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2428, independent: 2145, independent conditional: 0, independent unconditional: 2145, dependent: 283, dependent conditional: 0, dependent unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 283, independent: 193, independent conditional: 0, independent unconditional: 193, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 240, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3142, independent: 616, independent conditional: 0, independent unconditional: 616, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 2428, unknown conditional: 0, unknown unconditional: 2428] , Statistics on independence cache: Total cache size (in pairs): 3725, Positive cache size: 3635, Positive conditional cache size: 0, Positive unconditional cache size: 3635, Negative cache size: 90, Negative conditional cache size: 0, Negative unconditional cache size: 90, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1
- PositiveResult [Line: 19]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- PositiveResult [Line: 19]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- PositiveResult [Line: 19]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- PositiveResult [Line: 19]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 184 locations, 6 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: 6.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 290 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 290 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 691 IncrementalHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 2 mSDtfsCounter, 691 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=6, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 806 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
4 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-12-05 20:46:28,155 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...