/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:31:45,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:31:45,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:31:45,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:31:45,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:31:45,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:31:45,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:31:45,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:31:45,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:31:45,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:31:45,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:31:45,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:31:45,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:31:45,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:31:45,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:31:45,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:31:45,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:31:45,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:31:45,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:31:45,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:31:45,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:31:45,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:31:45,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:31:45,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:31:45,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 22:31:45,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 22:31:45,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 22:31:45,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 22:31:45,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 22:31:45,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 22:31:45,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 22:31:45,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 22:31:45,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 22:31:45,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:31:45,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:31:45,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:31:45,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-20 22:31:45,365 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:31:45,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:31:45,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:31:45,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:31:45,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:31:45,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:31:45,367 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:31:45,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:31:45,367 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:31:45,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:31:45,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:31:45,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:31:45,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:31:45,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:31:45,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:31:45,369 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:31:45,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:31:45,369 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:31:45,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:31:45,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:31:45,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:31:45,370 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:31:45,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:31:45,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:31:45,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:31:45,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:31:45,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:31:45,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:31:45,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:31:45,371 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:31:45,371 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:31:45,372 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:31:45,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:31:45,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:31:45,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:31:45,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:31:45,589 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:31:45,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.i [2022-09-20 22:31:45,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d170563a/95197b38d2dc4719a1f109b5f9133970/FLAGf988bde17 [2022-09-20 22:31:46,044 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:31:46,045 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.i [2022-09-20 22:31:46,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d170563a/95197b38d2dc4719a1f109b5f9133970/FLAGf988bde17 [2022-09-20 22:31:46,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d170563a/95197b38d2dc4719a1f109b5f9133970 [2022-09-20 22:31:46,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:31:46,406 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:31:46,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:31:46,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:31:46,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:31:46,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e648da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46, skipping insertion in model container [2022-09-20 22:31:46,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:31:46,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:31:46,578 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.i[945,958] [2022-09-20 22:31:46,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:31:46,709 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:31:46,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.i[945,958] [2022-09-20 22:31:46,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:31:46,816 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:31:46,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46 WrapperNode [2022-09-20 22:31:46,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:31:46,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:31:46,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:31:46,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:31:46,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,873 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-09-20 22:31:46,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:31:46,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:31:46,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:31:46,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:31:46,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:31:46,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:31:46,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:31:46,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:31:46,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46" (1/1) ... [2022-09-20 22:31:46,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:31:46,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:31:46,944 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) [2022-09-20 22:31:46,972 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 [2022-09-20 22:31:46,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:31:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-20 22:31:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:31:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:31:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:31:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-20 22:31:46,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-20 22:31:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-20 22:31:46,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-20 22:31:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-20 22:31:46,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-20 22:31:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:31:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-20 22:31:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:31:47,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:31:47,001 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:31:47,140 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:31:47,141 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:31:47,343 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:31:47,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:31:47,349 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:31:47,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:31:47 BoogieIcfgContainer [2022-09-20 22:31:47,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:31:47,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:31:47,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:31:47,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:31:47,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:31:46" (1/3) ... [2022-09-20 22:31:47,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e9930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:31:47, skipping insertion in model container [2022-09-20 22:31:47,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:31:46" (2/3) ... [2022-09-20 22:31:47,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e9930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:31:47, skipping insertion in model container [2022-09-20 22:31:47,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:31:47" (3/3) ... [2022-09-20 22:31:47,358 INFO L112 eAbstractionObserver]: Analyzing ICFG safe008_tso.i [2022-09-20 22:31:47,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:31:47,373 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 22:31:47,373 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:31:47,424 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-20 22:31:47,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 199 flow [2022-09-20 22:31:47,490 INFO L130 PetriNetUnfolder]: 2/89 cut-off events. [2022-09-20 22:31:47,491 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:31:47,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-09-20 22:31:47,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 92 transitions, 199 flow [2022-09-20 22:31:47,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 75 transitions, 159 flow [2022-09-20 22:31:47,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:31:47,512 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;@7be2492a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:31:47,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-09-20 22:31:47,532 INFO L130 PetriNetUnfolder]: 1/74 cut-off events. [2022-09-20 22:31:47,533 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:31:47,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:31:47,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:31:47,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-20 22:31:47,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:31:47,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1402349347, now seen corresponding path program 1 times [2022-09-20 22:31:47,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:31:47,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370086015] [2022-09-20 22:31:47,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:31:47,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:31:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:31:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:31:47,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:31:47,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370086015] [2022-09-20 22:31:47,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370086015] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:31:47,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:31:47,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 22:31:47,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034026969] [2022-09-20 22:31:47,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:31:47,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 22:31:47,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:31:47,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 22:31:47,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 22:31:47,957 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 92 [2022-09-20 22:31:47,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 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) [2022-09-20 22:31:47,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:31:47,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 92 [2022-09-20 22:31:47,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:31:48,142 INFO L130 PetriNetUnfolder]: 3/90 cut-off events. [2022-09-20 22:31:48,142 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-20 22:31:48,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 90 events. 3/90 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 4/93 useless extension candidates. Maximal degree in co-relation 88. Up to 7 conditions per place. [2022-09-20 22:31:48,144 INFO L137 encePairwiseOnDemand]: 85/92 looper letters, 9 selfloop transitions, 2 changer transitions 11/84 dead transitions. [2022-09-20 22:31:48,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 84 transitions, 219 flow [2022-09-20 22:31:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 22:31:48,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 22:31:48,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 718 transitions. [2022-09-20 22:31:48,158 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8671497584541062 [2022-09-20 22:31:48,158 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 718 transitions. [2022-09-20 22:31:48,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 718 transitions. [2022-09-20 22:31:48,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:31:48,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 718 transitions. [2022-09-20 22:31:48,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.77777777777777) internal successors, (718), 9 states have internal predecessors, (718), 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) [2022-09-20 22:31:48,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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) [2022-09-20 22:31:48,174 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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) [2022-09-20 22:31:48,175 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 159 flow. Second operand 9 states and 718 transitions. [2022-09-20 22:31:48,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 84 transitions, 219 flow [2022-09-20 22:31:48,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 84 transitions, 216 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-20 22:31:48,180 INFO L231 Difference]: Finished difference. Result has 96 places, 73 transitions, 172 flow [2022-09-20 22:31:48,182 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=172, PETRI_PLACES=96, PETRI_TRANSITIONS=73} [2022-09-20 22:31:48,184 INFO L287 CegarLoopForPetriNet]: 84 programPoint places, 12 predicate places. [2022-09-20 22:31:48,184 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 73 transitions, 172 flow [2022-09-20 22:31:48,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 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) [2022-09-20 22:31:48,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:31:48,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:31:48,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:31:48,186 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-20 22:31:48,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:31:48,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2084116356, now seen corresponding path program 1 times [2022-09-20 22:31:48,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:31:48,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477056513] [2022-09-20 22:31:48,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:31:48,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:31:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:31:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:31:48,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:31:48,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477056513] [2022-09-20 22:31:48,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477056513] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:31:48,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:31:48,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:31:48,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374180812] [2022-09-20 22:31:48,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:31:48,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:31:48,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:31:48,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:31:48,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:31:48,347 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 92 [2022-09-20 22:31:48,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 73 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 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) [2022-09-20 22:31:48,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:31:48,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 92 [2022-09-20 22:31:48,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:31:48,637 INFO L130 PetriNetUnfolder]: 92/355 cut-off events. [2022-09-20 22:31:48,638 INFO L131 PetriNetUnfolder]: For 106/110 co-relation queries the response was YES. [2022-09-20 22:31:48,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 681 conditions, 355 events. 92/355 cut-off events. For 106/110 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1642 event pairs, 3 based on Foata normal form. 11/356 useless extension candidates. Maximal degree in co-relation 638. Up to 67 conditions per place. [2022-09-20 22:31:48,642 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 21 selfloop transitions, 7 changer transitions 35/120 dead transitions. [2022-09-20 22:31:48,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 120 transitions, 439 flow [2022-09-20 22:31:48,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:31:48,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:31:48,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1002 transitions. [2022-09-20 22:31:48,647 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8377926421404682 [2022-09-20 22:31:48,647 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1002 transitions. [2022-09-20 22:31:48,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1002 transitions. [2022-09-20 22:31:48,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:31:48,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1002 transitions. [2022-09-20 22:31:48,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.07692307692308) internal successors, (1002), 13 states have internal predecessors, (1002), 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) [2022-09-20 22:31:48,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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) [2022-09-20 22:31:48,653 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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) [2022-09-20 22:31:48,653 INFO L175 Difference]: Start difference. First operand has 96 places, 73 transitions, 172 flow. Second operand 13 states and 1002 transitions. [2022-09-20 22:31:48,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 120 transitions, 439 flow [2022-09-20 22:31:48,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 120 transitions, 385 flow, removed 24 selfloop flow, removed 8 redundant places. [2022-09-20 22:31:48,673 INFO L231 Difference]: Finished difference. Result has 104 places, 77 transitions, 219 flow [2022-09-20 22:31:48,673 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=219, PETRI_PLACES=104, PETRI_TRANSITIONS=77} [2022-09-20 22:31:48,674 INFO L287 CegarLoopForPetriNet]: 84 programPoint places, 20 predicate places. [2022-09-20 22:31:48,674 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 77 transitions, 219 flow [2022-09-20 22:31:48,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 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) [2022-09-20 22:31:48,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:31:48,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:31:48,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:31:48,675 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-20 22:31:48,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:31:48,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1451784307, now seen corresponding path program 1 times [2022-09-20 22:31:48,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:31:48,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964005894] [2022-09-20 22:31:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:31:48,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:31:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:31:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:31:48,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:31:48,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964005894] [2022-09-20 22:31:48,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964005894] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:31:48,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:31:48,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:31:48,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833591890] [2022-09-20 22:31:48,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:31:48,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:31:48,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:31:48,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:31:48,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:31:48,820 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2022-09-20 22:31:48,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 77 transitions, 219 flow. Second operand has 7 states, 7 states have (on average 76.71428571428571) internal successors, (537), 7 states have internal predecessors, (537), 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) [2022-09-20 22:31:48,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:31:48,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2022-09-20 22:31:48,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:31:48,995 INFO L130 PetriNetUnfolder]: 25/214 cut-off events. [2022-09-20 22:31:48,995 INFO L131 PetriNetUnfolder]: For 277/339 co-relation queries the response was YES. [2022-09-20 22:31:49,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 214 events. 25/214 cut-off events. For 277/339 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 888 event pairs, 5 based on Foata normal form. 8/211 useless extension candidates. Maximal degree in co-relation 438. Up to 26 conditions per place. [2022-09-20 22:31:49,001 INFO L137 encePairwiseOnDemand]: 84/92 looper letters, 10 selfloop transitions, 4 changer transitions 14/90 dead transitions. [2022-09-20 22:31:49,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 90 transitions, 336 flow [2022-09-20 22:31:49,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-20 22:31:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-20 22:31:49,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 778 transitions. [2022-09-20 22:31:49,004 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8456521739130435 [2022-09-20 22:31:49,004 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 778 transitions. [2022-09-20 22:31:49,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 778 transitions. [2022-09-20 22:31:49,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:31:49,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 778 transitions. [2022-09-20 22:31:49,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.8) internal successors, (778), 10 states have internal predecessors, (778), 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) [2022-09-20 22:31:49,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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) [2022-09-20 22:31:49,010 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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) [2022-09-20 22:31:49,010 INFO L175 Difference]: Start difference. First operand has 104 places, 77 transitions, 219 flow. Second operand 10 states and 778 transitions. [2022-09-20 22:31:49,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 90 transitions, 336 flow [2022-09-20 22:31:49,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 90 transitions, 306 flow, removed 15 selfloop flow, removed 6 redundant places. [2022-09-20 22:31:49,019 INFO L231 Difference]: Finished difference. Result has 106 places, 75 transitions, 226 flow [2022-09-20 22:31:49,019 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=226, PETRI_PLACES=106, PETRI_TRANSITIONS=75} [2022-09-20 22:31:49,021 INFO L287 CegarLoopForPetriNet]: 84 programPoint places, 22 predicate places. [2022-09-20 22:31:49,021 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 75 transitions, 226 flow [2022-09-20 22:31:49,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.71428571428571) internal successors, (537), 7 states have internal predecessors, (537), 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) [2022-09-20 22:31:49,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:31:49,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:31:49,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 22:31:49,022 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-20 22:31:49,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:31:49,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2080834312, now seen corresponding path program 1 times [2022-09-20 22:31:49,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:31:49,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36194582] [2022-09-20 22:31:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:31:49,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:31:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:31:49,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:31:49,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:31:49,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36194582] [2022-09-20 22:31:49,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36194582] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:31:49,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:31:49,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-20 22:31:49,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416527536] [2022-09-20 22:31:49,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:31:49,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-20 22:31:49,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:31:49,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-20 22:31:49,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-20 22:31:49,191 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 92 [2022-09-20 22:31:49,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 75 transitions, 226 flow. Second operand has 8 states, 8 states have (on average 72.0) internal successors, (576), 8 states have internal predecessors, (576), 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) [2022-09-20 22:31:49,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:31:49,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 92 [2022-09-20 22:31:49,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:31:49,346 INFO L130 PetriNetUnfolder]: 35/224 cut-off events. [2022-09-20 22:31:49,346 INFO L131 PetriNetUnfolder]: For 311/453 co-relation queries the response was YES. [2022-09-20 22:31:49,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 224 events. 35/224 cut-off events. For 311/453 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 812 event pairs, 7 based on Foata normal form. 7/224 useless extension candidates. Maximal degree in co-relation 487. Up to 24 conditions per place. [2022-09-20 22:31:49,348 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 20 selfloop transitions, 5 changer transitions 24/104 dead transitions. [2022-09-20 22:31:49,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 104 transitions, 488 flow [2022-09-20 22:31:49,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-20 22:31:49,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-09-20 22:31:49,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 819 transitions. [2022-09-20 22:31:49,351 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8092885375494071 [2022-09-20 22:31:49,351 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 819 transitions. [2022-09-20 22:31:49,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 819 transitions. [2022-09-20 22:31:49,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:31:49,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 819 transitions. [2022-09-20 22:31:49,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.45454545454545) internal successors, (819), 11 states have internal predecessors, (819), 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) [2022-09-20 22:31:49,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 92.0) internal successors, (1104), 12 states have internal predecessors, (1104), 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) [2022-09-20 22:31:49,356 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 92.0) internal successors, (1104), 12 states have internal predecessors, (1104), 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) [2022-09-20 22:31:49,356 INFO L175 Difference]: Start difference. First operand has 106 places, 75 transitions, 226 flow. Second operand 11 states and 819 transitions. [2022-09-20 22:31:49,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 104 transitions, 488 flow [2022-09-20 22:31:49,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 104 transitions, 390 flow, removed 42 selfloop flow, removed 13 redundant places. [2022-09-20 22:31:49,360 INFO L231 Difference]: Finished difference. Result has 105 places, 73 transitions, 209 flow [2022-09-20 22:31:49,360 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=209, PETRI_PLACES=105, PETRI_TRANSITIONS=73} [2022-09-20 22:31:49,361 INFO L287 CegarLoopForPetriNet]: 84 programPoint places, 21 predicate places. [2022-09-20 22:31:49,361 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 73 transitions, 209 flow [2022-09-20 22:31:49,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.0) internal successors, (576), 8 states have internal predecessors, (576), 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) [2022-09-20 22:31:49,362 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:31:49,362 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:31:49,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 22:31:49,362 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-20 22:31:49,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:31:49,363 INFO L85 PathProgramCache]: Analyzing trace with hash 698509398, now seen corresponding path program 1 times [2022-09-20 22:31:49,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:31:49,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150387029] [2022-09-20 22:31:49,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:31:49,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:31:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:31:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:31:49,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:31:49,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150387029] [2022-09-20 22:31:49,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150387029] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:31:49,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:31:49,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 22:31:49,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25828756] [2022-09-20 22:31:49,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:31:49,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 22:31:49,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:31:49,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 22:31:49,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 22:31:49,457 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2022-09-20 22:31:49,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 73 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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) [2022-09-20 22:31:49,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:31:49,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2022-09-20 22:31:49,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:31:49,585 INFO L130 PetriNetUnfolder]: 98/338 cut-off events. [2022-09-20 22:31:49,586 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-09-20 22:31:49,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 338 events. 98/338 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1595 event pairs, 6 based on Foata normal form. 8/340 useless extension candidates. Maximal degree in co-relation 586. Up to 86 conditions per place. [2022-09-20 22:31:49,587 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 14 selfloop transitions, 5 changer transitions 21/100 dead transitions. [2022-09-20 22:31:49,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 100 transitions, 347 flow [2022-09-20 22:31:49,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 22:31:49,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 22:31:49,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 717 transitions. [2022-09-20 22:31:49,590 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8659420289855072 [2022-09-20 22:31:49,590 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 717 transitions. [2022-09-20 22:31:49,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 717 transitions. [2022-09-20 22:31:49,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:31:49,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 717 transitions. [2022-09-20 22:31:49,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.66666666666667) internal successors, (717), 9 states have internal predecessors, (717), 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) [2022-09-20 22:31:49,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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) [2022-09-20 22:31:49,594 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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) [2022-09-20 22:31:49,594 INFO L175 Difference]: Start difference. First operand has 105 places, 73 transitions, 209 flow. Second operand 9 states and 717 transitions. [2022-09-20 22:31:49,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 100 transitions, 347 flow [2022-09-20 22:31:49,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 100 transitions, 314 flow, removed 8 selfloop flow, removed 13 redundant places. [2022-09-20 22:31:49,597 INFO L231 Difference]: Finished difference. Result has 100 places, 75 transitions, 226 flow [2022-09-20 22:31:49,597 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=226, PETRI_PLACES=100, PETRI_TRANSITIONS=75} [2022-09-20 22:31:49,599 INFO L287 CegarLoopForPetriNet]: 84 programPoint places, 16 predicate places. [2022-09-20 22:31:49,599 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 75 transitions, 226 flow [2022-09-20 22:31:49,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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) [2022-09-20 22:31:49,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:31:49,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:31:49,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 22:31:49,600 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-20 22:31:49,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:31:49,604 INFO L85 PathProgramCache]: Analyzing trace with hash -554609075, now seen corresponding path program 1 times [2022-09-20 22:31:49,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:31:49,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977333503] [2022-09-20 22:31:49,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:31:49,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:31:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:31:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:31:49,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:31:49,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977333503] [2022-09-20 22:31:49,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977333503] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:31:49,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:31:49,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:31:49,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075385050] [2022-09-20 22:31:49,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:31:49,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:31:49,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:31:49,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:31:49,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:31:49,715 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2022-09-20 22:31:49,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 75 transitions, 226 flow. Second operand has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 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) [2022-09-20 22:31:49,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:31:49,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2022-09-20 22:31:49,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:31:49,837 INFO L130 PetriNetUnfolder]: 47/208 cut-off events. [2022-09-20 22:31:49,837 INFO L131 PetriNetUnfolder]: For 266/298 co-relation queries the response was YES. [2022-09-20 22:31:49,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 208 events. 47/208 cut-off events. For 266/298 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 743 event pairs, 0 based on Foata normal form. 9/215 useless extension candidates. Maximal degree in co-relation 537. Up to 69 conditions per place. [2022-09-20 22:31:49,838 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 11 selfloop transitions, 7 changer transitions 25/103 dead transitions. [2022-09-20 22:31:49,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 103 transitions, 501 flow [2022-09-20 22:31:49,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-20 22:31:49,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-20 22:31:49,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 795 transitions. [2022-09-20 22:31:49,841 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8641304347826086 [2022-09-20 22:31:49,841 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 795 transitions. [2022-09-20 22:31:49,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 795 transitions. [2022-09-20 22:31:49,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:31:49,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 795 transitions. [2022-09-20 22:31:49,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.5) internal successors, (795), 10 states have internal predecessors, (795), 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) [2022-09-20 22:31:49,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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) [2022-09-20 22:31:49,847 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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) [2022-09-20 22:31:49,847 INFO L175 Difference]: Start difference. First operand has 100 places, 75 transitions, 226 flow. Second operand 10 states and 795 transitions. [2022-09-20 22:31:49,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 103 transitions, 501 flow [2022-09-20 22:31:49,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 103 transitions, 472 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-20 22:31:49,851 INFO L231 Difference]: Finished difference. Result has 105 places, 75 transitions, 246 flow [2022-09-20 22:31:49,851 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=246, PETRI_PLACES=105, PETRI_TRANSITIONS=75} [2022-09-20 22:31:49,853 INFO L287 CegarLoopForPetriNet]: 84 programPoint places, 21 predicate places. [2022-09-20 22:31:49,853 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 75 transitions, 246 flow [2022-09-20 22:31:49,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 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) [2022-09-20 22:31:49,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:31:49,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:31:49,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 22:31:49,855 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-20 22:31:49,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:31:49,855 INFO L85 PathProgramCache]: Analyzing trace with hash -86345698, now seen corresponding path program 1 times [2022-09-20 22:31:49,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:31:49,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561428883] [2022-09-20 22:31:49,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:31:49,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:31:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:31:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:31:49,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:31:49,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561428883] [2022-09-20 22:31:49,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561428883] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:31:49,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:31:49,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-20 22:31:49,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027931613] [2022-09-20 22:31:49,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:31:49,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-20 22:31:49,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:31:49,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-20 22:31:49,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-09-20 22:31:49,994 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2022-09-20 22:31:49,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 75 transitions, 246 flow. Second operand has 8 states, 8 states have (on average 76.5) internal successors, (612), 8 states have internal predecessors, (612), 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) [2022-09-20 22:31:49,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:31:50,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2022-09-20 22:31:50,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:31:50,107 INFO L130 PetriNetUnfolder]: 9/101 cut-off events. [2022-09-20 22:31:50,107 INFO L131 PetriNetUnfolder]: For 195/211 co-relation queries the response was YES. [2022-09-20 22:31:50,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 101 events. 9/101 cut-off events. For 195/211 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 183 event pairs, 0 based on Foata normal form. 6/107 useless extension candidates. Maximal degree in co-relation 244. Up to 18 conditions per place. [2022-09-20 22:31:50,108 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2022-09-20 22:31:50,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 80 transitions, 364 flow [2022-09-20 22:31:50,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-20 22:31:50,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-09-20 22:31:50,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 854 transitions. [2022-09-20 22:31:50,111 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8438735177865613 [2022-09-20 22:31:50,112 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 854 transitions. [2022-09-20 22:31:50,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 854 transitions. [2022-09-20 22:31:50,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:31:50,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 854 transitions. [2022-09-20 22:31:50,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 77.63636363636364) internal successors, (854), 11 states have internal predecessors, (854), 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) [2022-09-20 22:31:50,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 92.0) internal successors, (1104), 12 states have internal predecessors, (1104), 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) [2022-09-20 22:31:50,116 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 92.0) internal successors, (1104), 12 states have internal predecessors, (1104), 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) [2022-09-20 22:31:50,116 INFO L175 Difference]: Start difference. First operand has 105 places, 75 transitions, 246 flow. Second operand 11 states and 854 transitions. [2022-09-20 22:31:50,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 80 transitions, 364 flow [2022-09-20 22:31:50,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 80 transitions, 297 flow, removed 23 selfloop flow, removed 11 redundant places. [2022-09-20 22:31:50,118 INFO L231 Difference]: Finished difference. Result has 93 places, 0 transitions, 0 flow [2022-09-20 22:31:50,119 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=93, PETRI_TRANSITIONS=0} [2022-09-20 22:31:50,119 INFO L287 CegarLoopForPetriNet]: 84 programPoint places, 9 predicate places. [2022-09-20 22:31:50,119 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 0 transitions, 0 flow [2022-09-20 22:31:50,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.5) internal successors, (612), 8 states have internal predecessors, (612), 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) [2022-09-20 22:31:50,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-09-20 22:31:50,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-09-20 22:31:50,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-09-20 22:31:50,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-09-20 22:31:50,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-20 22:31:50,125 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:31:50,128 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:31:50,128 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:31:50,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:31:50 BasicIcfg [2022-09-20 22:31:50,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:31:50,134 INFO L158 Benchmark]: Toolchain (without parser) took 3726.16ms. Allocated memory is still 243.3MB. Free memory was 214.4MB in the beginning and 183.9MB in the end (delta: 30.5MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-09-20 22:31:50,134 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:31:50,140 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.27ms. Allocated memory is still 243.3MB. Free memory was 214.3MB in the beginning and 200.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-20 22:31:50,140 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.37ms. Allocated memory is still 243.3MB. Free memory was 200.6MB in the beginning and 198.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:31:50,140 INFO L158 Benchmark]: Boogie Preprocessor took 30.09ms. Allocated memory is still 243.3MB. Free memory was 198.5MB in the beginning and 197.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 22:31:50,141 INFO L158 Benchmark]: RCFGBuilder took 446.52ms. Allocated memory is still 243.3MB. Free memory was 197.5MB in the beginning and 184.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-20 22:31:50,141 INFO L158 Benchmark]: TraceAbstraction took 2778.70ms. Allocated memory is still 243.3MB. Free memory was 184.4MB in the beginning and 183.9MB in the end (delta: 488.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 22:31:50,142 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 410.27ms. Allocated memory is still 243.3MB. Free memory was 214.3MB in the beginning and 200.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.37ms. Allocated memory is still 243.3MB. Free memory was 200.6MB in the beginning and 198.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.09ms. Allocated memory is still 243.3MB. Free memory was 198.5MB in the beginning and 197.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 446.52ms. Allocated memory is still 243.3MB. Free memory was 197.5MB in the beginning and 184.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2778.70ms. Allocated memory is still 243.3MB. Free memory was 184.4MB in the beginning and 183.9MB in the end (delta: 488.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 7 procedures, 115 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 239 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 239 mSDsluCounter, 290 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 292 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 362 IncrementalHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 69 mSDtfsCounter, 362 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=246occurred in iteration=6, InterpolantAutomatonStates: 73, 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 425 NumberOfCodeBlocks, 425 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 418 ConstructedInterpolants, 0 QuantifiedInterpolants, 1326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-20 22:31:50,175 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...