/usr/bin/java -Xmx16000000000 -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/weaver/chl-sre-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 00:55:07,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 00:55:07,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 00:55:07,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 00:55:07,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 00:55:07,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 00:55:07,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 00:55:07,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 00:55:07,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 00:55:07,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 00:55:07,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 00:55:07,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 00:55:07,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 00:55:07,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 00:55:07,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 00:55:07,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 00:55:07,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 00:55:07,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 00:55:07,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 00:55:07,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 00:55:07,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 00:55:07,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 00:55:07,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 00:55:07,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 00:55:08,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 00:55:08,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 00:55:08,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 00:55:08,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 00:55:08,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 00:55:08,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 00:55:08,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 00:55:08,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 00:55:08,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 00:55:08,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 00:55:08,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 00:55:08,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 00:55:08,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 00:55:08,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 00:55:08,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 00:55:08,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 00:55:08,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 00:55:08,010 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 [2022-01-19 00:55:08,033 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 00:55:08,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 00:55:08,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 00:55:08,034 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 00:55:08,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 00:55:08,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 00:55:08,034 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 00:55:08,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 00:55:08,035 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 00:55:08,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 00:55:08,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 00:55:08,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 00:55:08,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 00:55:08,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 00:55:08,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 00:55:08,036 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 00:55:08,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 00:55:08,036 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 00:55:08,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 00:55:08,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 00:55:08,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 00:55:08,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 00:55:08,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 00:55:08,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 00:55:08,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 00:55:08,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 00:55:08,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 00:55:08,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 00:55:08,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 00:55:08,037 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 00:55:08,037 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 00:55:08,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 00:55:08,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 00:55:08,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 00:55:08,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 00:55:08,252 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 00:55:08,252 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 00:55:08,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2022-01-19 00:55:08,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3373fb07/e1968c8a2a62493a8e78abe1fada73ee/FLAG5305cbe32 [2022-01-19 00:55:08,588 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 00:55:08,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2022-01-19 00:55:08,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3373fb07/e1968c8a2a62493a8e78abe1fada73ee/FLAG5305cbe32 [2022-01-19 00:55:09,013 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3373fb07/e1968c8a2a62493a8e78abe1fada73ee [2022-01-19 00:55:09,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 00:55:09,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 00:55:09,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 00:55:09,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 00:55:09,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 00:55:09,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@468de30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09, skipping insertion in model container [2022-01-19 00:55:09,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 00:55:09,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 00:55:09,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c[2272,2285] [2022-01-19 00:55:09,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 00:55:09,184 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 00:55:09,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c[2272,2285] [2022-01-19 00:55:09,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 00:55:09,205 INFO L208 MainTranslator]: Completed translation [2022-01-19 00:55:09,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09 WrapperNode [2022-01-19 00:55:09,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 00:55:09,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 00:55:09,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 00:55:09,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 00:55:09,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,226 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-01-19 00:55:09,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 00:55:09,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 00:55:09,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 00:55:09,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 00:55:09,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 00:55:09,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 00:55:09,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 00:55:09,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 00:55:09,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09" (1/1) ... [2022-01-19 00:55:09,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 00:55:09,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 00:55:09,262 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) [2022-01-19 00:55:09,266 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 [2022-01-19 00:55:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 00:55:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 00:55:09,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 00:55:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 00:55:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 00:55:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 00:55:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 00:55:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 00:55:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 00:55:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 00:55:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 00:55:09,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 00:55:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 00:55:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 00:55:09,293 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 00:55:09,362 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 00:55:09,363 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 00:55:09,569 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 00:55:09,575 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 00:55:09,575 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 00:55:09,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:55:09 BoogieIcfgContainer [2022-01-19 00:55:09,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 00:55:09,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 00:55:09,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 00:55:09,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 00:55:09,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 12:55:09" (1/3) ... [2022-01-19 00:55:09,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4561b827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:55:09, skipping insertion in model container [2022-01-19 00:55:09,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:55:09" (2/3) ... [2022-01-19 00:55:09,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4561b827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:55:09, skipping insertion in model container [2022-01-19 00:55:09,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:55:09" (3/3) ... [2022-01-19 00:55:09,588 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-sre-trans.wvr.c [2022-01-19 00:55:09,591 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 00:55:09,592 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 00:55:09,592 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 00:55:09,640 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,640 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,642 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,642 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,642 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,642 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,642 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,644 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,644 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,644 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,644 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,645 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,645 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,645 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,645 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,646 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,646 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,646 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,646 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,646 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,650 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,650 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,650 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,655 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,660 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,660 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,660 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,662 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,662 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,662 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,662 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,664 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,664 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,664 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,664 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,664 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,665 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,665 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,665 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:55:09,684 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 00:55:09,724 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 00:55:09,734 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 00:55:09,734 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 00:55:09,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 116 transitions, 256 flow [2022-01-19 00:55:09,801 INFO L129 PetriNetUnfolder]: 7/113 cut-off events. [2022-01-19 00:55:09,801 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 00:55:09,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 7/113 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 114 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2022-01-19 00:55:09,804 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 116 transitions, 256 flow [2022-01-19 00:55:09,808 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 102 transitions, 222 flow [2022-01-19 00:55:09,836 INFO L129 PetriNetUnfolder]: 7/101 cut-off events. [2022-01-19 00:55:09,837 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 00:55:09,837 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:55:09,838 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:55:09,839 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 00:55:09,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:55:09,843 INFO L85 PathProgramCache]: Analyzing trace with hash -64104107, now seen corresponding path program 1 times [2022-01-19 00:55:09,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:55:09,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084725551] [2022-01-19 00:55:09,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:55:09,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:55:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:55:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:55:10,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:55:10,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084725551] [2022-01-19 00:55:10,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084725551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:55:10,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:55:10,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 00:55:10,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689205996] [2022-01-19 00:55:10,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:55:10,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 00:55:10,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:55:10,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 00:55:10,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 00:55:10,085 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 116 [2022-01-19 00:55:10,088 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 102 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 100.33333333333333) internal successors, (602), 6 states have internal predecessors, (602), 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) [2022-01-19 00:55:10,088 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:55:10,088 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 116 [2022-01-19 00:55:10,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:55:10,169 INFO L129 PetriNetUnfolder]: 23/199 cut-off events. [2022-01-19 00:55:10,169 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-01-19 00:55:10,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 199 events. 23/199 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 641 event pairs, 6 based on Foata normal form. 2/184 useless extension candidates. Maximal degree in co-relation 192. Up to 17 conditions per place. [2022-01-19 00:55:10,172 INFO L132 encePairwiseOnDemand]: 107/116 looper letters, 18 selfloop transitions, 4 changer transitions 6/113 dead transitions. [2022-01-19 00:55:10,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 113 transitions, 318 flow [2022-01-19 00:55:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 00:55:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 00:55:10,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 717 transitions. [2022-01-19 00:55:10,183 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8830049261083743 [2022-01-19 00:55:10,183 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 717 transitions. [2022-01-19 00:55:10,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 717 transitions. [2022-01-19 00:55:10,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:55:10,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 717 transitions. [2022-01-19 00:55:10,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 102.42857142857143) internal successors, (717), 7 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) [2022-01-19 00:55:10,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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) [2022-01-19 00:55:10,195 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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) [2022-01-19 00:55:10,196 INFO L186 Difference]: Start difference. First operand has 105 places, 102 transitions, 222 flow. Second operand 7 states and 717 transitions. [2022-01-19 00:55:10,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 113 transitions, 318 flow [2022-01-19 00:55:10,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 113 transitions, 294 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 00:55:10,201 INFO L242 Difference]: Finished difference. Result has 109 places, 102 transitions, 234 flow [2022-01-19 00:55:10,202 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=234, PETRI_PLACES=109, PETRI_TRANSITIONS=102} [2022-01-19 00:55:10,205 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 4 predicate places. [2022-01-19 00:55:10,205 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 102 transitions, 234 flow [2022-01-19 00:55:10,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.33333333333333) internal successors, (602), 6 states have internal predecessors, (602), 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) [2022-01-19 00:55:10,206 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:55:10,206 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:55:10,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 00:55:10,206 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 00:55:10,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:55:10,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1386170374, now seen corresponding path program 1 times [2022-01-19 00:55:10,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:55:10,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881745560] [2022-01-19 00:55:10,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:55:10,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:55:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:55:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:55:10,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:55:10,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881745560] [2022-01-19 00:55:10,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881745560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:55:10,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:55:10,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:55:10,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081689580] [2022-01-19 00:55:10,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:55:10,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:55:10,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:55:10,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:55:10,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:55:10,309 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 116 [2022-01-19 00:55:10,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 102 transitions, 234 flow. Second operand has 7 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 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) [2022-01-19 00:55:10,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:55:10,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 116 [2022-01-19 00:55:10,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:55:10,422 INFO L129 PetriNetUnfolder]: 110/523 cut-off events. [2022-01-19 00:55:10,423 INFO L130 PetriNetUnfolder]: For 76/115 co-relation queries the response was YES. [2022-01-19 00:55:10,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 523 events. 110/523 cut-off events. For 76/115 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2929 event pairs, 65 based on Foata normal form. 4/494 useless extension candidates. Maximal degree in co-relation 886. Up to 84 conditions per place. [2022-01-19 00:55:10,428 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 30 selfloop transitions, 4 changer transitions 4/120 dead transitions. [2022-01-19 00:55:10,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 120 transitions, 367 flow [2022-01-19 00:55:10,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 00:55:10,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 00:55:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 600 transitions. [2022-01-19 00:55:10,430 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8620689655172413 [2022-01-19 00:55:10,430 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 600 transitions. [2022-01-19 00:55:10,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 600 transitions. [2022-01-19 00:55:10,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:55:10,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 600 transitions. [2022-01-19 00:55:10,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2022-01-19 00:55:10,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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) [2022-01-19 00:55:10,433 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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) [2022-01-19 00:55:10,433 INFO L186 Difference]: Start difference. First operand has 109 places, 102 transitions, 234 flow. Second operand 6 states and 600 transitions. [2022-01-19 00:55:10,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 120 transitions, 367 flow [2022-01-19 00:55:10,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 120 transitions, 357 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-01-19 00:55:10,438 INFO L242 Difference]: Finished difference. Result has 111 places, 104 transitions, 256 flow [2022-01-19 00:55:10,438 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=256, PETRI_PLACES=111, PETRI_TRANSITIONS=104} [2022-01-19 00:55:10,439 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 6 predicate places. [2022-01-19 00:55:10,439 INFO L470 AbstractCegarLoop]: Abstraction has has 111 places, 104 transitions, 256 flow [2022-01-19 00:55:10,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 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) [2022-01-19 00:55:10,440 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:55:10,440 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:55:10,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 00:55:10,441 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 00:55:10,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:55:10,441 INFO L85 PathProgramCache]: Analyzing trace with hash 492186299, now seen corresponding path program 1 times [2022-01-19 00:55:10,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:55:10,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337246747] [2022-01-19 00:55:10,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:55:10,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:55:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:55:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:55:10,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:55:10,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337246747] [2022-01-19 00:55:10,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337246747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:55:10,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:55:10,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 00:55:10,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024174128] [2022-01-19 00:55:10,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:55:10,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 00:55:10,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:55:10,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 00:55:10,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-19 00:55:10,617 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 116 [2022-01-19 00:55:10,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 104 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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) [2022-01-19 00:55:10,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:55:10,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 116 [2022-01-19 00:55:10,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:55:10,847 INFO L129 PetriNetUnfolder]: 454/1744 cut-off events. [2022-01-19 00:55:10,848 INFO L130 PetriNetUnfolder]: For 165/165 co-relation queries the response was YES. [2022-01-19 00:55:10,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 1744 events. 454/1744 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 13830 event pairs, 236 based on Foata normal form. 0/1409 useless extension candidates. Maximal degree in co-relation 2709. Up to 247 conditions per place. [2022-01-19 00:55:10,859 INFO L132 encePairwiseOnDemand]: 106/116 looper letters, 48 selfloop transitions, 6 changer transitions 7/138 dead transitions. [2022-01-19 00:55:10,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 138 transitions, 454 flow [2022-01-19 00:55:10,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 00:55:10,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 00:55:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 512 transitions. [2022-01-19 00:55:10,868 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8827586206896552 [2022-01-19 00:55:10,868 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 512 transitions. [2022-01-19 00:55:10,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 512 transitions. [2022-01-19 00:55:10,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:55:10,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 512 transitions. [2022-01-19 00:55:10,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:55:10,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2022-01-19 00:55:10,870 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2022-01-19 00:55:10,870 INFO L186 Difference]: Start difference. First operand has 111 places, 104 transitions, 256 flow. Second operand 5 states and 512 transitions. [2022-01-19 00:55:10,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 138 transitions, 454 flow [2022-01-19 00:55:10,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 138 transitions, 448 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-01-19 00:55:10,878 INFO L242 Difference]: Finished difference. Result has 112 places, 105 transitions, 279 flow [2022-01-19 00:55:10,879 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=279, PETRI_PLACES=112, PETRI_TRANSITIONS=105} [2022-01-19 00:55:10,880 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 7 predicate places. [2022-01-19 00:55:10,880 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 105 transitions, 279 flow [2022-01-19 00:55:10,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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) [2022-01-19 00:55:10,881 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:55:10,881 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:55:10,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 00:55:10,882 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 00:55:10,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:55:10,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1485931439, now seen corresponding path program 2 times [2022-01-19 00:55:10,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:55:10,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547242091] [2022-01-19 00:55:10,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:55:10,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:55:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:55:11,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:55:11,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:55:11,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547242091] [2022-01-19 00:55:11,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547242091] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:55:11,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:55:11,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 00:55:11,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515898636] [2022-01-19 00:55:11,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:55:11,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 00:55:11,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:55:11,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 00:55:11,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-19 00:55:11,044 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 116 [2022-01-19 00:55:11,045 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 105 transitions, 279 flow. Second operand has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 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) [2022-01-19 00:55:11,045 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:55:11,045 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 116 [2022-01-19 00:55:11,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:55:11,251 INFO L129 PetriNetUnfolder]: 345/2031 cut-off events. [2022-01-19 00:55:11,251 INFO L130 PetriNetUnfolder]: For 483/483 co-relation queries the response was YES. [2022-01-19 00:55:11,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3461 conditions, 2031 events. 345/2031 cut-off events. For 483/483 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 19052 event pairs, 69 based on Foata normal form. 33/2000 useless extension candidates. Maximal degree in co-relation 2603. Up to 202 conditions per place. [2022-01-19 00:55:11,262 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 51 selfloop transitions, 11 changer transitions 12/150 dead transitions. [2022-01-19 00:55:11,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 150 transitions, 583 flow [2022-01-19 00:55:11,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 00:55:11,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 00:55:11,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 529 transitions. [2022-01-19 00:55:11,264 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9120689655172414 [2022-01-19 00:55:11,264 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 529 transitions. [2022-01-19 00:55:11,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 529 transitions. [2022-01-19 00:55:11,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:55:11,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 529 transitions. [2022-01-19 00:55:11,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 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) [2022-01-19 00:55:11,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2022-01-19 00:55:11,267 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2022-01-19 00:55:11,267 INFO L186 Difference]: Start difference. First operand has 112 places, 105 transitions, 279 flow. Second operand 5 states and 529 transitions. [2022-01-19 00:55:11,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 150 transitions, 583 flow [2022-01-19 00:55:11,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 150 transitions, 565 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-01-19 00:55:11,275 INFO L242 Difference]: Finished difference. Result has 114 places, 111 transitions, 356 flow [2022-01-19 00:55:11,275 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=356, PETRI_PLACES=114, PETRI_TRANSITIONS=111} [2022-01-19 00:55:11,278 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 9 predicate places. [2022-01-19 00:55:11,278 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 111 transitions, 356 flow [2022-01-19 00:55:11,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 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) [2022-01-19 00:55:11,278 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:55:11,278 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:55:11,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 00:55:11,279 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 00:55:11,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:55:11,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1029683477, now seen corresponding path program 1 times [2022-01-19 00:55:11,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:55:11,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318255448] [2022-01-19 00:55:11,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:55:11,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:55:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:55:11,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:55:11,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:55:11,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318255448] [2022-01-19 00:55:11,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318255448] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:55:11,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:55:11,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:55:11,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967014830] [2022-01-19 00:55:11,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:55:11,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:55:11,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:55:11,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:55:11,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:55:11,381 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 116 [2022-01-19 00:55:11,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 111 transitions, 356 flow. Second operand has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 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) [2022-01-19 00:55:11,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:55:11,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 116 [2022-01-19 00:55:11,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:55:11,532 INFO L129 PetriNetUnfolder]: 154/991 cut-off events. [2022-01-19 00:55:11,532 INFO L130 PetriNetUnfolder]: For 345/451 co-relation queries the response was YES. [2022-01-19 00:55:11,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1784 conditions, 991 events. 154/991 cut-off events. For 345/451 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8557 event pairs, 83 based on Foata normal form. 20/962 useless extension candidates. Maximal degree in co-relation 1273. Up to 232 conditions per place. [2022-01-19 00:55:11,537 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 22 selfloop transitions, 5 changer transitions 9/130 dead transitions. [2022-01-19 00:55:11,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 130 transitions, 484 flow [2022-01-19 00:55:11,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 00:55:11,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 00:55:11,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 892 transitions. [2022-01-19 00:55:11,540 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8544061302681992 [2022-01-19 00:55:11,540 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 892 transitions. [2022-01-19 00:55:11,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 892 transitions. [2022-01-19 00:55:11,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:55:11,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 892 transitions. [2022-01-19 00:55:11,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.11111111111111) internal successors, (892), 9 states have internal predecessors, (892), 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) [2022-01-19 00:55:11,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 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) [2022-01-19 00:55:11,544 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 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) [2022-01-19 00:55:11,544 INFO L186 Difference]: Start difference. First operand has 114 places, 111 transitions, 356 flow. Second operand 9 states and 892 transitions. [2022-01-19 00:55:11,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 130 transitions, 484 flow [2022-01-19 00:55:11,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 130 transitions, 470 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-01-19 00:55:11,548 INFO L242 Difference]: Finished difference. Result has 125 places, 115 transitions, 389 flow [2022-01-19 00:55:11,548 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=389, PETRI_PLACES=125, PETRI_TRANSITIONS=115} [2022-01-19 00:55:11,550 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 20 predicate places. [2022-01-19 00:55:11,550 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 115 transitions, 389 flow [2022-01-19 00:55:11,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 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) [2022-01-19 00:55:11,551 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:55:11,551 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:55:11,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 00:55:11,551 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 00:55:11,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:55:11,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1197986629, now seen corresponding path program 1 times [2022-01-19 00:55:11,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:55:11,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711890450] [2022-01-19 00:55:11,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:55:11,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:55:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:55:11,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:55:11,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:55:11,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711890450] [2022-01-19 00:55:11,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711890450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:55:11,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:55:11,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:55:11,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417576698] [2022-01-19 00:55:11,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:55:11,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:55:11,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:55:11,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:55:11,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:55:11,636 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 116 [2022-01-19 00:55:11,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 115 transitions, 389 flow. Second operand has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 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) [2022-01-19 00:55:11,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:55:11,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 116 [2022-01-19 00:55:11,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:55:11,750 INFO L129 PetriNetUnfolder]: 90/751 cut-off events. [2022-01-19 00:55:11,750 INFO L130 PetriNetUnfolder]: For 248/335 co-relation queries the response was YES. [2022-01-19 00:55:11,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1412 conditions, 751 events. 90/751 cut-off events. For 248/335 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 6097 event pairs, 42 based on Foata normal form. 6/714 useless extension candidates. Maximal degree in co-relation 1391. Up to 117 conditions per place. [2022-01-19 00:55:11,754 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 28 selfloop transitions, 5 changer transitions 4/135 dead transitions. [2022-01-19 00:55:11,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 135 transitions, 520 flow [2022-01-19 00:55:11,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 00:55:11,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 00:55:11,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 893 transitions. [2022-01-19 00:55:11,756 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8553639846743295 [2022-01-19 00:55:11,756 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 893 transitions. [2022-01-19 00:55:11,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 893 transitions. [2022-01-19 00:55:11,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:55:11,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 893 transitions. [2022-01-19 00:55:11,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.22222222222223) internal successors, (893), 9 states have internal predecessors, (893), 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) [2022-01-19 00:55:11,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 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) [2022-01-19 00:55:11,759 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 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) [2022-01-19 00:55:11,759 INFO L186 Difference]: Start difference. First operand has 125 places, 115 transitions, 389 flow. Second operand 9 states and 893 transitions. [2022-01-19 00:55:11,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 135 transitions, 520 flow [2022-01-19 00:55:11,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 135 transitions, 513 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-01-19 00:55:11,765 INFO L242 Difference]: Finished difference. Result has 135 places, 119 transitions, 425 flow [2022-01-19 00:55:11,765 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=425, PETRI_PLACES=135, PETRI_TRANSITIONS=119} [2022-01-19 00:55:11,766 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 30 predicate places. [2022-01-19 00:55:11,767 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 119 transitions, 425 flow [2022-01-19 00:55:11,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 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) [2022-01-19 00:55:11,767 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:55:11,767 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:55:11,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 00:55:11,768 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 00:55:11,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:55:11,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1547087313, now seen corresponding path program 3 times [2022-01-19 00:55:11,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:55:11,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766960722] [2022-01-19 00:55:11,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:55:11,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:55:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:55:11,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:55:11,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:55:11,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766960722] [2022-01-19 00:55:11,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766960722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:55:11,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:55:11,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 00:55:11,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229170406] [2022-01-19 00:55:11,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:55:11,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 00:55:11,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:55:11,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 00:55:11,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-19 00:55:11,888 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 116 [2022-01-19 00:55:11,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 119 transitions, 425 flow. Second operand has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 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) [2022-01-19 00:55:11,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:55:11,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 116 [2022-01-19 00:55:11,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:55:12,094 INFO L129 PetriNetUnfolder]: 325/1630 cut-off events. [2022-01-19 00:55:12,094 INFO L130 PetriNetUnfolder]: For 1182/1182 co-relation queries the response was YES. [2022-01-19 00:55:12,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3599 conditions, 1630 events. 325/1630 cut-off events. For 1182/1182 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 14316 event pairs, 44 based on Foata normal form. 24/1554 useless extension candidates. Maximal degree in co-relation 3574. Up to 270 conditions per place. [2022-01-19 00:55:12,103 INFO L132 encePairwiseOnDemand]: 105/116 looper letters, 31 selfloop transitions, 5 changer transitions 59/166 dead transitions. [2022-01-19 00:55:12,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 166 transitions, 834 flow [2022-01-19 00:55:12,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 00:55:12,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 00:55:12,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 513 transitions. [2022-01-19 00:55:12,104 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8844827586206897 [2022-01-19 00:55:12,104 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 513 transitions. [2022-01-19 00:55:12,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 513 transitions. [2022-01-19 00:55:12,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:55:12,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 513 transitions. [2022-01-19 00:55:12,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 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) [2022-01-19 00:55:12,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2022-01-19 00:55:12,107 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2022-01-19 00:55:12,107 INFO L186 Difference]: Start difference. First operand has 135 places, 119 transitions, 425 flow. Second operand 5 states and 513 transitions. [2022-01-19 00:55:12,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 166 transitions, 834 flow [2022-01-19 00:55:12,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 166 transitions, 829 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-01-19 00:55:12,113 INFO L242 Difference]: Finished difference. Result has 138 places, 100 transitions, 340 flow [2022-01-19 00:55:12,113 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=340, PETRI_PLACES=138, PETRI_TRANSITIONS=100} [2022-01-19 00:55:12,113 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 33 predicate places. [2022-01-19 00:55:12,113 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 100 transitions, 340 flow [2022-01-19 00:55:12,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 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) [2022-01-19 00:55:12,115 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:55:12,115 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:55:12,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 00:55:12,115 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 00:55:12,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:55:12,115 INFO L85 PathProgramCache]: Analyzing trace with hash -606803557, now seen corresponding path program 4 times [2022-01-19 00:55:12,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:55:12,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939043496] [2022-01-19 00:55:12,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:55:12,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:55:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:55:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:55:12,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:55:12,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939043496] [2022-01-19 00:55:12,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939043496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:55:12,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:55:12,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 00:55:12,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187623022] [2022-01-19 00:55:12,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:55:12,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 00:55:12,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:55:12,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 00:55:12,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-19 00:55:12,194 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 116 [2022-01-19 00:55:12,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 100 transitions, 340 flow. Second operand has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 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) [2022-01-19 00:55:12,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:55:12,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 116 [2022-01-19 00:55:12,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:55:12,305 INFO L129 PetriNetUnfolder]: 71/554 cut-off events. [2022-01-19 00:55:12,305 INFO L130 PetriNetUnfolder]: For 848/848 co-relation queries the response was YES. [2022-01-19 00:55:12,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 554 events. 71/554 cut-off events. For 848/848 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3501 event pairs, 18 based on Foata normal form. 18/552 useless extension candidates. Maximal degree in co-relation 1256. Up to 74 conditions per place. [2022-01-19 00:55:12,308 INFO L132 encePairwiseOnDemand]: 107/116 looper letters, 33 selfloop transitions, 5 changer transitions 25/134 dead transitions. [2022-01-19 00:55:12,308 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 134 transitions, 711 flow [2022-01-19 00:55:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 00:55:12,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 00:55:12,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 588 transitions. [2022-01-19 00:55:12,310 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2022-01-19 00:55:12,310 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 588 transitions. [2022-01-19 00:55:12,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 588 transitions. [2022-01-19 00:55:12,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:55:12,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 588 transitions. [2022-01-19 00:55:12,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:55:12,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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) [2022-01-19 00:55:12,313 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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) [2022-01-19 00:55:12,313 INFO L186 Difference]: Start difference. First operand has 138 places, 100 transitions, 340 flow. Second operand 6 states and 588 transitions. [2022-01-19 00:55:12,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 134 transitions, 711 flow [2022-01-19 00:55:12,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 134 transitions, 643 flow, removed 31 selfloop flow, removed 13 redundant places. [2022-01-19 00:55:12,318 INFO L242 Difference]: Finished difference. Result has 117 places, 100 transitions, 338 flow [2022-01-19 00:55:12,318 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=117, PETRI_TRANSITIONS=100} [2022-01-19 00:55:12,320 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 12 predicate places. [2022-01-19 00:55:12,320 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 100 transitions, 338 flow [2022-01-19 00:55:12,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 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) [2022-01-19 00:55:12,320 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:55:12,320 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:55:12,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 00:55:12,320 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 00:55:12,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:55:12,321 INFO L85 PathProgramCache]: Analyzing trace with hash 483450939, now seen corresponding path program 5 times [2022-01-19 00:55:12,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:55:12,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56694201] [2022-01-19 00:55:12,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:55:12,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:55:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:55:12,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:55:12,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:55:12,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56694201] [2022-01-19 00:55:12,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56694201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:55:12,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:55:12,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 00:55:12,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380074915] [2022-01-19 00:55:12,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:55:12,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 00:55:12,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:55:12,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 00:55:12,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-19 00:55:12,394 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 116 [2022-01-19 00:55:12,395 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 100 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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) [2022-01-19 00:55:12,395 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:55:12,395 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 116 [2022-01-19 00:55:12,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:55:12,496 INFO L129 PetriNetUnfolder]: 39/389 cut-off events. [2022-01-19 00:55:12,496 INFO L130 PetriNetUnfolder]: For 475/475 co-relation queries the response was YES. [2022-01-19 00:55:12,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 389 events. 39/389 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2103 event pairs, 9 based on Foata normal form. 2/377 useless extension candidates. Maximal degree in co-relation 476. Up to 67 conditions per place. [2022-01-19 00:55:12,498 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 30 selfloop transitions, 3 changer transitions 12/115 dead transitions. [2022-01-19 00:55:12,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 115 transitions, 541 flow [2022-01-19 00:55:12,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 00:55:12,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 00:55:12,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 576 transitions. [2022-01-19 00:55:12,500 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8275862068965517 [2022-01-19 00:55:12,500 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 576 transitions. [2022-01-19 00:55:12,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 576 transitions. [2022-01-19 00:55:12,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:55:12,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 576 transitions. [2022-01-19 00:55:12,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.0) internal successors, (576), 6 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) [2022-01-19 00:55:12,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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) [2022-01-19 00:55:12,502 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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) [2022-01-19 00:55:12,502 INFO L186 Difference]: Start difference. First operand has 117 places, 100 transitions, 338 flow. Second operand 6 states and 576 transitions. [2022-01-19 00:55:12,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 115 transitions, 541 flow [2022-01-19 00:55:12,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 115 transitions, 519 flow, removed 11 selfloop flow, removed 1 redundant places. [2022-01-19 00:55:12,505 INFO L242 Difference]: Finished difference. Result has 123 places, 97 transitions, 319 flow [2022-01-19 00:55:12,505 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=319, PETRI_PLACES=123, PETRI_TRANSITIONS=97} [2022-01-19 00:55:12,506 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 18 predicate places. [2022-01-19 00:55:12,506 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 97 transitions, 319 flow [2022-01-19 00:55:12,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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) [2022-01-19 00:55:12,506 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:55:12,506 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:55:12,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 00:55:12,507 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 00:55:12,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:55:12,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1056150492, now seen corresponding path program 1 times [2022-01-19 00:55:12,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:55:12,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735285949] [2022-01-19 00:55:12,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:55:12,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:55:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:55:12,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:55:12,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:55:12,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735285949] [2022-01-19 00:55:12,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735285949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:55:12,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:55:12,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:55:12,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176675696] [2022-01-19 00:55:12,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:55:12,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:55:12,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:55:12,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:55:12,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:55:12,549 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 116 [2022-01-19 00:55:12,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 97 transitions, 319 flow. Second operand has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 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) [2022-01-19 00:55:12,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:55:12,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 116 [2022-01-19 00:55:12,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:55:12,619 INFO L129 PetriNetUnfolder]: 34/258 cut-off events. [2022-01-19 00:55:12,620 INFO L130 PetriNetUnfolder]: For 227/235 co-relation queries the response was YES. [2022-01-19 00:55:12,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 258 events. 34/258 cut-off events. For 227/235 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1275 event pairs, 2 based on Foata normal form. 1/253 useless extension candidates. Maximal degree in co-relation 452. Up to 23 conditions per place. [2022-01-19 00:55:12,621 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 0 selfloop transitions, 0 changer transitions 104/104 dead transitions. [2022-01-19 00:55:12,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 104 transitions, 393 flow [2022-01-19 00:55:12,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 00:55:12,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 00:55:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 881 transitions. [2022-01-19 00:55:12,623 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8438697318007663 [2022-01-19 00:55:12,623 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 881 transitions. [2022-01-19 00:55:12,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 881 transitions. [2022-01-19 00:55:12,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:55:12,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 881 transitions. [2022-01-19 00:55:12,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 97.88888888888889) internal successors, (881), 9 states have internal predecessors, (881), 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) [2022-01-19 00:55:12,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 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) [2022-01-19 00:55:12,626 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 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) [2022-01-19 00:55:12,626 INFO L186 Difference]: Start difference. First operand has 123 places, 97 transitions, 319 flow. Second operand 9 states and 881 transitions. [2022-01-19 00:55:12,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 104 transitions, 393 flow [2022-01-19 00:55:12,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 104 transitions, 352 flow, removed 12 selfloop flow, removed 10 redundant places. [2022-01-19 00:55:12,628 INFO L242 Difference]: Finished difference. Result has 114 places, 0 transitions, 0 flow [2022-01-19 00:55:12,628 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=114, PETRI_TRANSITIONS=0} [2022-01-19 00:55:12,629 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 9 predicate places. [2022-01-19 00:55:12,629 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 0 transitions, 0 flow [2022-01-19 00:55:12,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 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) [2022-01-19 00:55:12,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 00:55:12,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 00:55:12,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-19 00:55:12,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-19 00:55:12,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 00:55:12,634 INFO L732 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1] [2022-01-19 00:55:12,635 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 00:55:12,635 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 00:55:12,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 12:55:12 BasicIcfg [2022-01-19 00:55:12,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 00:55:12,638 INFO L158 Benchmark]: Toolchain (without parser) took 3622.69ms. Allocated memory was 390.1MB in the beginning and 612.4MB in the end (delta: 222.3MB). Free memory was 337.5MB in the beginning and 369.0MB in the end (delta: -31.4MB). Peak memory consumption was 193.3MB. Max. memory is 16.0GB. [2022-01-19 00:55:12,638 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 390.1MB. Free memory is still 353.7MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 00:55:12,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.61ms. Allocated memory is still 390.1MB. Free memory was 337.4MB in the beginning and 362.5MB in the end (delta: -25.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.0GB. [2022-01-19 00:55:12,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.35ms. Allocated memory is still 390.1MB. Free memory was 362.5MB in the beginning and 361.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 00:55:12,638 INFO L158 Benchmark]: Boogie Preprocessor took 12.10ms. Allocated memory is still 390.1MB. Free memory was 361.5MB in the beginning and 359.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 00:55:12,639 INFO L158 Benchmark]: RCFGBuilder took 337.16ms. Allocated memory is still 390.1MB. Free memory was 359.4MB in the beginning and 345.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-19 00:55:12,639 INFO L158 Benchmark]: TraceAbstraction took 3059.95ms. Allocated memory was 390.1MB in the beginning and 612.4MB in the end (delta: 222.3MB). Free memory was 345.7MB in the beginning and 369.0MB in the end (delta: -23.2MB). Peak memory consumption was 201.2MB. Max. memory is 16.0GB. [2022-01-19 00:55:12,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 390.1MB. Free memory is still 353.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 189.61ms. Allocated memory is still 390.1MB. Free memory was 337.4MB in the beginning and 362.5MB in the end (delta: -25.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 20.35ms. Allocated memory is still 390.1MB. Free memory was 362.5MB in the beginning and 361.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 12.10ms. Allocated memory is still 390.1MB. Free memory was 361.5MB in the beginning and 359.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 337.16ms. Allocated memory is still 390.1MB. Free memory was 359.4MB in the beginning and 345.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3059.95ms. Allocated memory was 390.1MB in the beginning and 612.4MB in the end (delta: 222.3MB). Free memory was 345.7MB in the beginning and 369.0MB in the end (delta: -23.2MB). Peak memory consumption was 201.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 76]: 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, 149 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: 2.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 249 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 300 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 470 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 787 IncrementalHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 125 mSDtfsCounter, 787 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=425occurred in iteration=6, InterpolantAutomatonStates: 67, 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, 0.7s InterpolantComputationTime, 856 NumberOfCodeBlocks, 856 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 846 ConstructedInterpolants, 0 QuantifiedInterpolants, 2717 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2022-01-19 00:55:12,665 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...