/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/parallel-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 01:21:42,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 01:21:42,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 01:21:42,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 01:21:42,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 01:21:42,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 01:21:42,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 01:21:42,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 01:21:42,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 01:21:42,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 01:21:42,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 01:21:42,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 01:21:42,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 01:21:42,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 01:21:42,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 01:21:42,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 01:21:42,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 01:21:42,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 01:21:42,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 01:21:42,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 01:21:42,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 01:21:42,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 01:21:42,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 01:21:42,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 01:21:42,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 01:21:42,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 01:21:42,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 01:21:42,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 01:21:42,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 01:21:42,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 01:21:42,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 01:21:42,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 01:21:42,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 01:21:42,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 01:21:42,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 01:21:42,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 01:21:42,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 01:21:42,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 01:21:42,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 01:21:42,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 01:21:42,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 01:21:42,175 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 01:21:42,208 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 01:21:42,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 01:21:42,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 01:21:42,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 01:21:42,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 01:21:42,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 01:21:42,210 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 01:21:42,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 01:21:42,210 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 01:21:42,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 01:21:42,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 01:21:42,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 01:21:42,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 01:21:42,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 01:21:42,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 01:21:42,212 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 01:21:42,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 01:21:42,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 01:21:42,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 01:21:42,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 01:21:42,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 01:21:42,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 01:21:42,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 01:21:42,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 01:21:42,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 01:21:42,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 01:21:42,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 01:21:42,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 01:21:42,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 01:21:42,214 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 01:21:42,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 01:21:42,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 01:21:42,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 01:21:42,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 01:21:42,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 01:21:42,428 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 01:21:42,428 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 01:21:42,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-01-19 01:21:42,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9b7d3455/4636906fa9ec42afa575205e7a7467cf/FLAG00b5f7c04 [2022-01-19 01:21:42,873 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 01:21:42,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-01-19 01:21:42,879 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9b7d3455/4636906fa9ec42afa575205e7a7467cf/FLAG00b5f7c04 [2022-01-19 01:21:42,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9b7d3455/4636906fa9ec42afa575205e7a7467cf [2022-01-19 01:21:42,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 01:21:42,892 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 01:21:42,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 01:21:42,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 01:21:42,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 01:21:42,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:21:42" (1/1) ... [2022-01-19 01:21:42,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0be16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:42, skipping insertion in model container [2022-01-19 01:21:42,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:21:42" (1/1) ... [2022-01-19 01:21:42,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 01:21:42,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 01:21:43,093 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/parallel-ticket-5.wvr.c[3963,3976] [2022-01-19 01:21:43,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 01:21:43,101 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 01:21:43,124 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/parallel-ticket-5.wvr.c[3963,3976] [2022-01-19 01:21:43,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 01:21:43,140 INFO L208 MainTranslator]: Completed translation [2022-01-19 01:21:43,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43 WrapperNode [2022-01-19 01:21:43,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 01:21:43,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 01:21:43,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 01:21:43,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 01:21:43,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43" (1/1) ... [2022-01-19 01:21:43,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43" (1/1) ... [2022-01-19 01:21:43,186 INFO L137 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2022-01-19 01:21:43,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 01:21:43,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 01:21:43,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 01:21:43,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 01:21:43,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43" (1/1) ... [2022-01-19 01:21:43,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43" (1/1) ... [2022-01-19 01:21:43,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43" (1/1) ... [2022-01-19 01:21:43,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43" (1/1) ... [2022-01-19 01:21:43,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43" (1/1) ... [2022-01-19 01:21:43,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43" (1/1) ... [2022-01-19 01:21:43,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43" (1/1) ... [2022-01-19 01:21:43,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 01:21:43,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 01:21:43,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 01:21:43,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 01:21:43,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43" (1/1) ... [2022-01-19 01:21:43,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 01:21:43,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 01:21:43,257 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 01:21:43,289 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 01:21:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 01:21:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 01:21:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 01:21:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 01:21:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 01:21:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 01:21:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 01:21:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-19 01:21:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-19 01:21:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 01:21:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-01-19 01:21:43,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-01-19 01:21:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 01:21:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 01:21:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 01:21:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 01:21:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 01:21:43,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 01:21:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 01:21:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 01:21:43,298 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 01:21:43,405 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 01:21:43,406 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 01:21:43,643 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 01:21:43,736 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 01:21:43,737 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 01:21:43,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:21:43 BoogieIcfgContainer [2022-01-19 01:21:43,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 01:21:43,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 01:21:43,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 01:21:43,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 01:21:43,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 01:21:42" (1/3) ... [2022-01-19 01:21:43,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b1bc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:21:43, skipping insertion in model container [2022-01-19 01:21:43,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:21:43" (2/3) ... [2022-01-19 01:21:43,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b1bc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:21:43, skipping insertion in model container [2022-01-19 01:21:43,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:21:43" (3/3) ... [2022-01-19 01:21:43,746 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-01-19 01:21:43,750 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 01:21:43,750 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 01:21:43,750 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 01:21:43,815 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,815 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,815 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,816 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,816 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,816 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,816 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,817 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,817 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,817 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,817 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,817 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,817 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,820 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,820 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,820 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,820 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,821 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,821 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,821 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,821 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,822 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,822 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,822 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,822 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,822 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,823 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,823 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,823 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,823 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,823 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,824 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,824 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,824 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,825 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,825 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,825 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,825 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,825 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,826 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,826 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,826 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,826 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,827 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,827 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,827 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,827 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,827 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,828 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,832 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,832 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,832 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,833 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,833 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,833 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,834 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,834 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,834 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,834 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,834 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,834 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,835 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,835 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,835 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,835 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,836 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,836 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,837 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,837 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,837 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,837 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,837 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,837 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:21:43,844 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-01-19 01:21:43,884 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 01:21:43,890 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 01:21:43,891 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-19 01:21:43,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 179 places, 165 transitions, 370 flow [2022-01-19 01:21:43,970 INFO L129 PetriNetUnfolder]: 2/160 cut-off events. [2022-01-19 01:21:43,971 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 01:21:43,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 160 events. 2/160 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2022-01-19 01:21:43,974 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 165 transitions, 370 flow [2022-01-19 01:21:43,981 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 145 transitions, 320 flow [2022-01-19 01:21:44,017 INFO L129 PetriNetUnfolder]: 2/144 cut-off events. [2022-01-19 01:21:44,017 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 01:21:44,018 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:21:44,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:44,019 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:21:44,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:21:44,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1882316905, now seen corresponding path program 1 times [2022-01-19 01:21:44,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:21:44,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997185557] [2022-01-19 01:21:44,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:21:44,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:21:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:21:44,874 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 01:21:44,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:21:44,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997185557] [2022-01-19 01:21:44,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997185557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:21:44,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:21:44,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-19 01:21:44,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540464716] [2022-01-19 01:21:44,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:21:44,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 01:21:44,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:21:44,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 01:21:44,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-01-19 01:21:44,916 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 01:21:44,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 145 transitions, 320 flow. Second operand has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 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 01:21:44,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:21:44,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 01:21:44,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:21:50,184 INFO L129 PetriNetUnfolder]: 28398/43787 cut-off events. [2022-01-19 01:21:50,184 INFO L130 PetriNetUnfolder]: For 7195/7249 co-relation queries the response was YES. [2022-01-19 01:21:50,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86820 conditions, 43787 events. 28398/43787 cut-off events. For 7195/7249 co-relation queries the response was YES. Maximal size of possible extension queue 1725. Compared 330731 event pairs, 16376 based on Foata normal form. 4/42714 useless extension candidates. Maximal degree in co-relation 68872. Up to 12802 conditions per place. [2022-01-19 01:21:50,484 INFO L132 encePairwiseOnDemand]: 141/165 looper letters, 122 selfloop transitions, 27 changer transitions 26/267 dead transitions. [2022-01-19 01:21:50,485 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 267 transitions, 1004 flow [2022-01-19 01:21:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 01:21:50,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 01:21:50,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1957 transitions. [2022-01-19 01:21:50,503 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7412878787878788 [2022-01-19 01:21:50,503 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1957 transitions. [2022-01-19 01:21:50,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1957 transitions. [2022-01-19 01:21:50,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:21:50,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1957 transitions. [2022-01-19 01:21:50,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.3125) internal successors, (1957), 16 states have internal predecessors, (1957), 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 01:21:50,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 165.0) internal successors, (2805), 17 states have internal predecessors, (2805), 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 01:21:50,531 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 165.0) internal successors, (2805), 17 states have internal predecessors, (2805), 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 01:21:50,532 INFO L186 Difference]: Start difference. First operand has 159 places, 145 transitions, 320 flow. Second operand 16 states and 1957 transitions. [2022-01-19 01:21:50,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 267 transitions, 1004 flow [2022-01-19 01:21:50,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 267 transitions, 924 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-01-19 01:21:50,703 INFO L242 Difference]: Finished difference. Result has 174 places, 162 transitions, 479 flow [2022-01-19 01:21:50,705 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=479, PETRI_PLACES=174, PETRI_TRANSITIONS=162} [2022-01-19 01:21:50,709 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 15 predicate places. [2022-01-19 01:21:50,709 INFO L470 AbstractCegarLoop]: Abstraction has has 174 places, 162 transitions, 479 flow [2022-01-19 01:21:50,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 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 01:21:50,710 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:21:50,710 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:50,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 01:21:50,711 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:21:50,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:21:50,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1644980583, now seen corresponding path program 2 times [2022-01-19 01:21:50,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:21:50,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47608420] [2022-01-19 01:21:50,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:21:50,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:21:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:21:51,118 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 01:21:51,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:21:51,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47608420] [2022-01-19 01:21:51,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47608420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:21:51,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:21:51,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-19 01:21:51,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69732346] [2022-01-19 01:21:51,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:21:51,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 01:21:51,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:21:51,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 01:21:51,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-01-19 01:21:51,123 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 01:21:51,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 162 transitions, 479 flow. Second operand has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 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 01:21:51,125 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:21:51,125 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 01:21:51,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:21:55,197 INFO L129 PetriNetUnfolder]: 25385/42661 cut-off events. [2022-01-19 01:21:55,198 INFO L130 PetriNetUnfolder]: For 34339/34339 co-relation queries the response was YES. [2022-01-19 01:21:55,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108685 conditions, 42661 events. 25385/42661 cut-off events. For 34339/34339 co-relation queries the response was YES. Maximal size of possible extension queue 1845. Compared 370827 event pairs, 6884 based on Foata normal form. 1/42097 useless extension candidates. Maximal degree in co-relation 108666. Up to 22556 conditions per place. [2022-01-19 01:21:55,722 INFO L132 encePairwiseOnDemand]: 146/165 looper letters, 82 selfloop transitions, 29 changer transitions 47/250 dead transitions. [2022-01-19 01:21:55,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 250 transitions, 1152 flow [2022-01-19 01:21:55,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 01:21:55,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 01:21:55,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1472 transitions. [2022-01-19 01:21:55,727 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7434343434343434 [2022-01-19 01:21:55,727 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1472 transitions. [2022-01-19 01:21:55,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1472 transitions. [2022-01-19 01:21:55,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:21:55,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1472 transitions. [2022-01-19 01:21:55,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.66666666666667) internal successors, (1472), 12 states have internal predecessors, (1472), 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 01:21:55,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 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 01:21:55,748 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 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 01:21:55,749 INFO L186 Difference]: Start difference. First operand has 174 places, 162 transitions, 479 flow. Second operand 12 states and 1472 transitions. [2022-01-19 01:21:55,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 250 transitions, 1152 flow [2022-01-19 01:21:55,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 250 transitions, 1109 flow, removed 10 selfloop flow, removed 8 redundant places. [2022-01-19 01:21:55,795 INFO L242 Difference]: Finished difference. Result has 175 places, 174 transitions, 627 flow [2022-01-19 01:21:55,795 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=627, PETRI_PLACES=175, PETRI_TRANSITIONS=174} [2022-01-19 01:21:55,796 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 16 predicate places. [2022-01-19 01:21:55,796 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 174 transitions, 627 flow [2022-01-19 01:21:55,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 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 01:21:55,797 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:21:55,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:55,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 01:21:55,798 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:21:55,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:21:55,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1318499785, now seen corresponding path program 3 times [2022-01-19 01:21:55,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:21:55,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964731456] [2022-01-19 01:21:55,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:21:55,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:21:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:21:55,944 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 01:21:55,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:21:55,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964731456] [2022-01-19 01:21:55,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964731456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:21:55,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:21:55,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 01:21:55,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152429739] [2022-01-19 01:21:55,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:21:55,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 01:21:55,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:21:55,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 01:21:55,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-01-19 01:21:55,948 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:21:55,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 174 transitions, 627 flow. Second operand has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 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 01:21:55,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:21:55,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:21:55,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:21:58,043 INFO L129 PetriNetUnfolder]: 14040/22867 cut-off events. [2022-01-19 01:21:58,044 INFO L130 PetriNetUnfolder]: For 35779/41832 co-relation queries the response was YES. [2022-01-19 01:21:58,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66682 conditions, 22867 events. 14040/22867 cut-off events. For 35779/41832 co-relation queries the response was YES. Maximal size of possible extension queue 1224. Compared 178398 event pairs, 1545 based on Foata normal form. 201/21583 useless extension candidates. Maximal degree in co-relation 66658. Up to 5638 conditions per place. [2022-01-19 01:21:58,297 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 95 selfloop transitions, 58 changer transitions 1/281 dead transitions. [2022-01-19 01:21:58,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 281 transitions, 1286 flow [2022-01-19 01:21:58,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 01:21:58,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 01:21:58,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1347 transitions. [2022-01-19 01:21:58,301 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8163636363636364 [2022-01-19 01:21:58,301 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1347 transitions. [2022-01-19 01:21:58,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1347 transitions. [2022-01-19 01:21:58,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:21:58,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1347 transitions. [2022-01-19 01:21:58,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 134.7) internal successors, (1347), 10 states have internal predecessors, (1347), 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 01:21:58,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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 01:21:58,308 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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 01:21:58,308 INFO L186 Difference]: Start difference. First operand has 175 places, 174 transitions, 627 flow. Second operand 10 states and 1347 transitions. [2022-01-19 01:21:58,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 281 transitions, 1286 flow [2022-01-19 01:21:58,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 281 transitions, 1225 flow, removed 14 selfloop flow, removed 9 redundant places. [2022-01-19 01:21:58,380 INFO L242 Difference]: Finished difference. Result has 172 places, 218 transitions, 831 flow [2022-01-19 01:21:58,381 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=831, PETRI_PLACES=172, PETRI_TRANSITIONS=218} [2022-01-19 01:21:58,383 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 13 predicate places. [2022-01-19 01:21:58,383 INFO L470 AbstractCegarLoop]: Abstraction has has 172 places, 218 transitions, 831 flow [2022-01-19 01:21:58,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 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 01:21:58,383 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:21:58,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:58,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 01:21:58,384 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:21:58,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:21:58,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1113799159, now seen corresponding path program 4 times [2022-01-19 01:21:58,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:21:58,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138540769] [2022-01-19 01:21:58,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:21:58,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:21:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:21:58,554 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 01:21:58,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:21:58,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138540769] [2022-01-19 01:21:58,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138540769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:21:58,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:21:58,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 01:21:58,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354815449] [2022-01-19 01:21:58,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:21:58,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 01:21:58,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:21:58,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 01:21:58,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 01:21:58,562 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:21:58,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 218 transitions, 831 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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 01:21:58,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:21:58,563 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:21:58,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:22:01,942 INFO L129 PetriNetUnfolder]: 20024/38070 cut-off events. [2022-01-19 01:22:01,943 INFO L130 PetriNetUnfolder]: For 42114/46734 co-relation queries the response was YES. [2022-01-19 01:22:02,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109720 conditions, 38070 events. 20024/38070 cut-off events. For 42114/46734 co-relation queries the response was YES. Maximal size of possible extension queue 2125. Compared 381409 event pairs, 4107 based on Foata normal form. 1352/37946 useless extension candidates. Maximal degree in co-relation 51763. Up to 8245 conditions per place. [2022-01-19 01:22:02,409 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 128 selfloop transitions, 84 changer transitions 0/339 dead transitions. [2022-01-19 01:22:02,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 339 transitions, 1813 flow [2022-01-19 01:22:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 01:22:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 01:22:02,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 946 transitions. [2022-01-19 01:22:02,414 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.819047619047619 [2022-01-19 01:22:02,414 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 946 transitions. [2022-01-19 01:22:02,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 946 transitions. [2022-01-19 01:22:02,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:22:02,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 946 transitions. [2022-01-19 01:22:02,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.14285714285714) internal successors, (946), 7 states have internal predecessors, (946), 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 01:22:02,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 01:22:02,419 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 01:22:02,419 INFO L186 Difference]: Start difference. First operand has 172 places, 218 transitions, 831 flow. Second operand 7 states and 946 transitions. [2022-01-19 01:22:02,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 339 transitions, 1813 flow [2022-01-19 01:22:02,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 339 transitions, 1689 flow, removed 57 selfloop flow, removed 3 redundant places. [2022-01-19 01:22:02,478 INFO L242 Difference]: Finished difference. Result has 177 places, 283 transitions, 1388 flow [2022-01-19 01:22:02,479 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1388, PETRI_PLACES=177, PETRI_TRANSITIONS=283} [2022-01-19 01:22:02,480 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 18 predicate places. [2022-01-19 01:22:02,480 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 283 transitions, 1388 flow [2022-01-19 01:22:02,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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 01:22:02,481 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:22:02,481 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:02,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 01:22:02,481 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:22:02,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:22:02,482 INFO L85 PathProgramCache]: Analyzing trace with hash -904049683, now seen corresponding path program 5 times [2022-01-19 01:22:02,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:22:02,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650369917] [2022-01-19 01:22:02,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:22:02,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:22:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:22:02,659 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 01:22:02,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:22:02,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650369917] [2022-01-19 01:22:02,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650369917] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:22:02,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:22:02,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 01:22:02,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617229556] [2022-01-19 01:22:02,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:22:02,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 01:22:02,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:22:02,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 01:22:02,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-19 01:22:02,663 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:22:02,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 283 transitions, 1388 flow. Second operand has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 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 01:22:02,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:22:02,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:22:02,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:22:05,702 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([491] L109-->L112: Formula: (= (ite (= (ite (or (not (= (mod v_~b~0_6 256) 0)) (= v_~x~0_5 1)) 1 0) 0) 0 1) v_~b~0_5) InVars {~b~0=v_~b~0_6, ~x~0=v_~x~0_5} OutVars{~b~0=v_~b~0_5, ~x~0=v_~x~0_5} AuxVars[] AssignedVars[~b~0][199], [83#L160-4true, 44#L93true, 73#L134true, 145#L112true, 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), 101#L74true, Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), Black: 270#(<= ~s~0 ~t~0), 78#L55true, Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 258#(<= (+ ~s~0 4) ~t~0)]) [2022-01-19 01:22:05,702 INFO L384 tUnfolder$Statistics]: this new event has 103 ancestors and is cut-off event [2022-01-19 01:22:05,702 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-01-19 01:22:05,702 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-01-19 01:22:05,702 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-01-19 01:22:06,708 INFO L129 PetriNetUnfolder]: 25513/47183 cut-off events. [2022-01-19 01:22:06,709 INFO L130 PetriNetUnfolder]: For 89096/98166 co-relation queries the response was YES. [2022-01-19 01:22:07,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158297 conditions, 47183 events. 25513/47183 cut-off events. For 89096/98166 co-relation queries the response was YES. Maximal size of possible extension queue 2703. Compared 473679 event pairs, 4721 based on Foata normal form. 1931/46703 useless extension candidates. Maximal degree in co-relation 57954. Up to 11796 conditions per place. [2022-01-19 01:22:07,287 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 129 selfloop transitions, 166 changer transitions 0/422 dead transitions. [2022-01-19 01:22:07,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 422 transitions, 2718 flow [2022-01-19 01:22:07,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 01:22:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 01:22:07,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1094 transitions. [2022-01-19 01:22:07,291 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8287878787878787 [2022-01-19 01:22:07,291 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1094 transitions. [2022-01-19 01:22:07,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1094 transitions. [2022-01-19 01:22:07,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:22:07,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1094 transitions. [2022-01-19 01:22:07,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.75) internal successors, (1094), 8 states have internal predecessors, (1094), 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 01:22:07,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 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 01:22:07,296 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 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 01:22:07,296 INFO L186 Difference]: Start difference. First operand has 177 places, 283 transitions, 1388 flow. Second operand 8 states and 1094 transitions. [2022-01-19 01:22:07,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 422 transitions, 2718 flow [2022-01-19 01:22:07,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 422 transitions, 2694 flow, removed 10 selfloop flow, removed 2 redundant places. [2022-01-19 01:22:07,445 INFO L242 Difference]: Finished difference. Result has 184 places, 360 transitions, 2343 flow [2022-01-19 01:22:07,446 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1374, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2343, PETRI_PLACES=184, PETRI_TRANSITIONS=360} [2022-01-19 01:22:07,446 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 25 predicate places. [2022-01-19 01:22:07,447 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 360 transitions, 2343 flow [2022-01-19 01:22:07,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 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 01:22:07,447 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:22:07,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:07,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 01:22:07,448 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:22:07,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:22:07,448 INFO L85 PathProgramCache]: Analyzing trace with hash -147796337, now seen corresponding path program 6 times [2022-01-19 01:22:07,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:22:07,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459670675] [2022-01-19 01:22:07,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:22:07,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:22:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:22:07,562 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 01:22:07,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:22:07,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459670675] [2022-01-19 01:22:07,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459670675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:22:07,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:22:07,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 01:22:07,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454090608] [2022-01-19 01:22:07,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:22:07,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 01:22:07,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:22:07,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 01:22:07,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-19 01:22:07,565 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:22:07,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 360 transitions, 2343 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 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 01:22:07,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:22:07,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:22:07,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:22:10,619 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([486] L93-->L96: Formula: (= v_~s~0_79 (+ v_~s~0_80 1)) InVars {~s~0=v_~s~0_80} OutVars{thread3Thread1of1ForFork4_#t~post6#1=|v_thread3Thread1of1ForFork4_#t~post6#1_1|, ~s~0=v_~s~0_79} AuxVars[] AssignedVars[thread3Thread1of1ForFork4_#t~post6#1, ~s~0][197], [42#L115true, 24#L52true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), Black: 284#(<= ~s~0 ~t~0), 131#L128true, Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 57#L96true, Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), 301#(<= (+ 2 ~s~0) ~t~0), 21#L71true, Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), 257#(<= (+ 3 ~s~0) ~t~0), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 285#(<= (+ ~s~0 1) ~t~0), 270#(<= ~s~0 ~t~0)]) [2022-01-19 01:22:10,619 INFO L384 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-01-19 01:22:10,619 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 01:22:10,619 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 01:22:10,619 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 01:22:10,620 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([497] L128-->L131: Formula: (= v_~b~0_7 (ite (= (ite (or (= v_~x~0_6 1) (not (= 0 (mod v_~b~0_8 256)))) 1 0) 0) 0 1)) InVars {~b~0=v_~b~0_8, ~x~0=v_~x~0_6} OutVars{~b~0=v_~b~0_7, ~x~0=v_~x~0_6} AuxVars[] AssignedVars[~b~0][261], [42#L115true, 24#L52true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), 44#L93true, Black: 284#(<= ~s~0 ~t~0), 302#(<= (+ 3 ~s~0) ~t~0), 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), Black: 270#(<= ~s~0 ~t~0), 21#L71true, Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 82#L131true, 258#(<= (+ ~s~0 4) ~t~0)]) [2022-01-19 01:22:10,620 INFO L384 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-01-19 01:22:10,620 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 01:22:10,620 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 01:22:10,620 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 01:22:10,620 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([474] L55-->L58: Formula: (= v_~s~0_59 (+ v_~s~0_60 1)) InVars {~s~0=v_~s~0_60} OutVars{thread1Thread1of1ForFork0_#t~post2#1=|v_thread1Thread1of1ForFork0_#t~post2#1_1|, ~s~0=v_~s~0_59} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~post2#1, ~s~0][241], [42#L115true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), 44#L93true, Black: 284#(<= ~s~0 ~t~0), 131#L128true, Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), 301#(<= (+ 2 ~s~0) ~t~0), 21#L71true, Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), 257#(<= (+ 3 ~s~0) ~t~0), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 127#L58true, 270#(<= ~s~0 ~t~0), 285#(<= (+ ~s~0 1) ~t~0)]) [2022-01-19 01:22:10,620 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,620 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,620 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,620 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,891 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([497] L128-->L131: Formula: (= v_~b~0_7 (ite (= (ite (or (= v_~x~0_6 1) (not (= 0 (mod v_~b~0_8 256)))) 1 0) 0) 0 1)) InVars {~b~0=v_~b~0_8, ~x~0=v_~x~0_6} OutVars{~b~0=v_~b~0_7, ~x~0=v_~x~0_6} AuxVars[] AssignedVars[~b~0][261], [42#L115true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), 44#L93true, Black: 284#(<= ~s~0 ~t~0), 302#(<= (+ 3 ~s~0) ~t~0), 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), 78#L55true, Black: 270#(<= ~s~0 ~t~0), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), 21#L71true, Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 82#L131true, 258#(<= (+ ~s~0 4) ~t~0)]) [2022-01-19 01:22:10,891 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,891 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,891 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,891 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,916 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([497] L128-->L131: Formula: (= v_~b~0_7 (ite (= (ite (or (= v_~x~0_6 1) (not (= 0 (mod v_~b~0_8 256)))) 1 0) 0) 0 1)) InVars {~b~0=v_~b~0_8, ~x~0=v_~x~0_6} OutVars{~b~0=v_~b~0_7, ~x~0=v_~x~0_6} AuxVars[] AssignedVars[~b~0][261], [42#L115true, 83#L160-4true, 44#L93true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), Black: 284#(<= ~s~0 ~t~0), 302#(<= (+ 3 ~s~0) ~t~0), 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), Black: 270#(<= ~s~0 ~t~0), 78#L55true, 21#L71true, Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 82#L131true, 258#(<= (+ ~s~0 4) ~t~0)]) [2022-01-19 01:22:10,916 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,916 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,916 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,916 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,916 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,917 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([474] L55-->L58: Formula: (= v_~s~0_59 (+ v_~s~0_60 1)) InVars {~s~0=v_~s~0_60} OutVars{thread1Thread1of1ForFork0_#t~post2#1=|v_thread1Thread1of1ForFork0_#t~post2#1_1|, ~s~0=v_~s~0_59} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~post2#1, ~s~0][241], [42#L115true, 83#L160-4true, 44#L93true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), Black: 284#(<= ~s~0 ~t~0), 131#L128true, Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), 301#(<= (+ 2 ~s~0) ~t~0), 21#L71true, Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), 257#(<= (+ 3 ~s~0) ~t~0), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 127#L58true, 285#(<= (+ ~s~0 1) ~t~0), 270#(<= ~s~0 ~t~0)]) [2022-01-19 01:22:10,917 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,917 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,917 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,917 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:10,917 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 01:22:12,391 INFO L129 PetriNetUnfolder]: 26530/47127 cut-off events. [2022-01-19 01:22:12,392 INFO L130 PetriNetUnfolder]: For 149341/160102 co-relation queries the response was YES. [2022-01-19 01:22:12,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185117 conditions, 47127 events. 26530/47127 cut-off events. For 149341/160102 co-relation queries the response was YES. Maximal size of possible extension queue 2587. Compared 453882 event pairs, 3807 based on Foata normal form. 2373/47034 useless extension candidates. Maximal degree in co-relation 127011. Up to 12762 conditions per place. [2022-01-19 01:22:13,025 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 114 selfloop transitions, 218 changer transitions 2/461 dead transitions. [2022-01-19 01:22:13,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 461 transitions, 3576 flow [2022-01-19 01:22:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 01:22:13,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 01:22:13,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1230 transitions. [2022-01-19 01:22:13,028 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2022-01-19 01:22:13,028 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1230 transitions. [2022-01-19 01:22:13,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1230 transitions. [2022-01-19 01:22:13,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:22:13,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1230 transitions. [2022-01-19 01:22:13,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 136.66666666666666) internal successors, (1230), 9 states have internal predecessors, (1230), 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 01:22:13,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 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 01:22:13,033 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 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 01:22:13,034 INFO L186 Difference]: Start difference. First operand has 184 places, 360 transitions, 2343 flow. Second operand 9 states and 1230 transitions. [2022-01-19 01:22:13,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 461 transitions, 3576 flow [2022-01-19 01:22:13,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 461 transitions, 3524 flow, removed 24 selfloop flow, removed 2 redundant places. [2022-01-19 01:22:13,782 INFO L242 Difference]: Finished difference. Result has 192 places, 395 transitions, 3138 flow [2022-01-19 01:22:13,782 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2319, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3138, PETRI_PLACES=192, PETRI_TRANSITIONS=395} [2022-01-19 01:22:13,783 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 33 predicate places. [2022-01-19 01:22:13,783 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 395 transitions, 3138 flow [2022-01-19 01:22:13,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 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 01:22:13,784 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:22:13,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:13,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 01:22:13,784 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:22:13,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:22:13,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1325641699, now seen corresponding path program 7 times [2022-01-19 01:22:13,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:22:13,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354413835] [2022-01-19 01:22:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:22:13,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:22:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:22:13,884 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 01:22:13,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:22:13,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354413835] [2022-01-19 01:22:13,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354413835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:22:13,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:22:13,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 01:22:13,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71147162] [2022-01-19 01:22:13,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:22:13,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 01:22:13,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:22:13,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 01:22:13,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 01:22:13,887 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:22:13,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 395 transitions, 3138 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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 01:22:13,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:22:13,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:22:13,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:22:21,455 INFO L129 PetriNetUnfolder]: 25014/47806 cut-off events. [2022-01-19 01:22:21,456 INFO L130 PetriNetUnfolder]: For 192179/199828 co-relation queries the response was YES. [2022-01-19 01:22:21,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200073 conditions, 47806 events. 25014/47806 cut-off events. For 192179/199828 co-relation queries the response was YES. Maximal size of possible extension queue 2716. Compared 498570 event pairs, 5909 based on Foata normal form. 1999/47720 useless extension candidates. Maximal degree in co-relation 105004. Up to 12767 conditions per place. [2022-01-19 01:22:21,986 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 209 selfloop transitions, 137 changer transitions 0/473 dead transitions. [2022-01-19 01:22:21,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 473 transitions, 4409 flow [2022-01-19 01:22:21,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 01:22:21,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 01:22:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 945 transitions. [2022-01-19 01:22:21,989 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2022-01-19 01:22:21,989 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 945 transitions. [2022-01-19 01:22:21,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 945 transitions. [2022-01-19 01:22:21,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:22:21,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 945 transitions. [2022-01-19 01:22:21,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.0) internal successors, (945), 7 states have internal predecessors, (945), 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 01:22:21,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 01:22:21,994 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 01:22:21,994 INFO L186 Difference]: Start difference. First operand has 192 places, 395 transitions, 3138 flow. Second operand 7 states and 945 transitions. [2022-01-19 01:22:21,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 473 transitions, 4409 flow [2022-01-19 01:22:22,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 473 transitions, 4378 flow, removed 7 selfloop flow, removed 3 redundant places. [2022-01-19 01:22:22,846 INFO L242 Difference]: Finished difference. Result has 197 places, 420 transitions, 3801 flow [2022-01-19 01:22:22,847 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3111, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3801, PETRI_PLACES=197, PETRI_TRANSITIONS=420} [2022-01-19 01:22:22,847 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 38 predicate places. [2022-01-19 01:22:22,847 INFO L470 AbstractCegarLoop]: Abstraction has has 197 places, 420 transitions, 3801 flow [2022-01-19 01:22:22,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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 01:22:22,848 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:22:22,848 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:22,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 01:22:22,848 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:22:22,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:22:22,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1392558915, now seen corresponding path program 8 times [2022-01-19 01:22:22,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:22:22,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775032639] [2022-01-19 01:22:22,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:22:22,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:22:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:22:22,961 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 01:22:22,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:22:22,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775032639] [2022-01-19 01:22:22,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775032639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:22:22,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:22:22,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 01:22:22,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094839178] [2022-01-19 01:22:22,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:22:22,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 01:22:22,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:22:22,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 01:22:22,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 01:22:22,965 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:22:22,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 420 transitions, 3801 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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 01:22:22,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:22:22,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:22:22,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:22:28,260 INFO L129 PetriNetUnfolder]: 23131/44122 cut-off events. [2022-01-19 01:22:28,260 INFO L130 PetriNetUnfolder]: For 228108/240901 co-relation queries the response was YES. [2022-01-19 01:22:28,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200748 conditions, 44122 events. 23131/44122 cut-off events. For 228108/240901 co-relation queries the response was YES. Maximal size of possible extension queue 2695. Compared 459176 event pairs, 5400 based on Foata normal form. 3096/45038 useless extension candidates. Maximal degree in co-relation 131312. Up to 12823 conditions per place. [2022-01-19 01:22:28,719 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 207 selfloop transitions, 176 changer transitions 1/507 dead transitions. [2022-01-19 01:22:28,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 507 transitions, 5416 flow [2022-01-19 01:22:28,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 01:22:28,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 01:22:28,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 947 transitions. [2022-01-19 01:22:28,721 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8199134199134199 [2022-01-19 01:22:28,721 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 947 transitions. [2022-01-19 01:22:28,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 947 transitions. [2022-01-19 01:22:28,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:22:28,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 947 transitions. [2022-01-19 01:22:28,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 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 01:22:28,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 01:22:28,725 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 01:22:28,725 INFO L186 Difference]: Start difference. First operand has 197 places, 420 transitions, 3801 flow. Second operand 7 states and 947 transitions. [2022-01-19 01:22:28,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 507 transitions, 5416 flow [2022-01-19 01:22:29,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 507 transitions, 5183 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-01-19 01:22:29,152 INFO L242 Difference]: Finished difference. Result has 200 places, 456 transitions, 4660 flow [2022-01-19 01:22:29,153 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3561, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4660, PETRI_PLACES=200, PETRI_TRANSITIONS=456} [2022-01-19 01:22:29,153 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 41 predicate places. [2022-01-19 01:22:29,153 INFO L470 AbstractCegarLoop]: Abstraction has has 200 places, 456 transitions, 4660 flow [2022-01-19 01:22:29,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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 01:22:29,154 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:22:29,154 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:29,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 01:22:29,154 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:22:29,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:22:29,155 INFO L85 PathProgramCache]: Analyzing trace with hash 62190035, now seen corresponding path program 9 times [2022-01-19 01:22:29,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:22:29,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631650806] [2022-01-19 01:22:29,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:22:29,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:22:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:22:29,257 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 01:22:29,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:22:29,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631650806] [2022-01-19 01:22:29,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631650806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:22:29,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:22:29,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 01:22:29,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995069543] [2022-01-19 01:22:29,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:22:29,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 01:22:29,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:22:29,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 01:22:29,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 01:22:29,260 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:22:29,260 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 456 transitions, 4660 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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 01:22:29,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:22:29,260 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:22:29,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:22:34,529 INFO L129 PetriNetUnfolder]: 21462/42203 cut-off events. [2022-01-19 01:22:34,529 INFO L130 PetriNetUnfolder]: For 257500/266501 co-relation queries the response was YES. [2022-01-19 01:22:34,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196130 conditions, 42203 events. 21462/42203 cut-off events. For 257500/266501 co-relation queries the response was YES. Maximal size of possible extension queue 2633. Compared 448894 event pairs, 5058 based on Foata normal form. 2478/42458 useless extension candidates. Maximal degree in co-relation 59661. Up to 12638 conditions per place. [2022-01-19 01:22:34,967 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 208 selfloop transitions, 207 changer transitions 3/539 dead transitions. [2022-01-19 01:22:34,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 539 transitions, 6321 flow [2022-01-19 01:22:34,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 01:22:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 01:22:34,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 947 transitions. [2022-01-19 01:22:34,970 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8199134199134199 [2022-01-19 01:22:34,970 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 947 transitions. [2022-01-19 01:22:34,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 947 transitions. [2022-01-19 01:22:34,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:22:34,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 947 transitions. [2022-01-19 01:22:34,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 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 01:22:34,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 01:22:34,974 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 01:22:34,974 INFO L186 Difference]: Start difference. First operand has 200 places, 456 transitions, 4660 flow. Second operand 7 states and 947 transitions. [2022-01-19 01:22:34,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 539 transitions, 6321 flow [2022-01-19 01:22:35,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 539 transitions, 6098 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 01:22:35,246 INFO L242 Difference]: Finished difference. Result has 204 places, 487 transitions, 5553 flow [2022-01-19 01:22:35,247 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4425, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5553, PETRI_PLACES=204, PETRI_TRANSITIONS=487} [2022-01-19 01:22:35,247 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 45 predicate places. [2022-01-19 01:22:35,247 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 487 transitions, 5553 flow [2022-01-19 01:22:35,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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 01:22:35,248 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:22:35,248 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:35,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 01:22:35,248 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:22:35,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:22:35,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1785034139, now seen corresponding path program 10 times [2022-01-19 01:22:35,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:22:35,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580450805] [2022-01-19 01:22:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:22:35,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:22:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:22:35,348 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 01:22:35,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:22:35,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580450805] [2022-01-19 01:22:35,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580450805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:22:35,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:22:35,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 01:22:35,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774865805] [2022-01-19 01:22:35,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:22:35,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 01:22:35,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:22:35,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 01:22:35,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 01:22:35,351 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:22:35,351 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 487 transitions, 5553 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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 01:22:35,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:22:35,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:22:35,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:22:39,151 INFO L129 PetriNetUnfolder]: 14692/30055 cut-off events. [2022-01-19 01:22:39,151 INFO L130 PetriNetUnfolder]: For 215793/224682 co-relation queries the response was YES. [2022-01-19 01:22:39,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146057 conditions, 30055 events. 14692/30055 cut-off events. For 215793/224682 co-relation queries the response was YES. Maximal size of possible extension queue 1625. Compared 310966 event pairs, 3012 based on Foata normal form. 2585/31090 useless extension candidates. Maximal degree in co-relation 102978. Up to 9801 conditions per place. [2022-01-19 01:22:39,721 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 200 selfloop transitions, 250 changer transitions 0/561 dead transitions. [2022-01-19 01:22:39,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 561 transitions, 7428 flow [2022-01-19 01:22:39,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 01:22:39,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 01:22:39,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 944 transitions. [2022-01-19 01:22:39,723 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8173160173160173 [2022-01-19 01:22:39,723 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 944 transitions. [2022-01-19 01:22:39,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 944 transitions. [2022-01-19 01:22:39,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:22:39,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 944 transitions. [2022-01-19 01:22:39,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 134.85714285714286) internal successors, (944), 7 states have internal predecessors, (944), 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 01:22:39,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 01:22:39,727 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 01:22:39,727 INFO L186 Difference]: Start difference. First operand has 204 places, 487 transitions, 5553 flow. Second operand 7 states and 944 transitions. [2022-01-19 01:22:39,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 561 transitions, 7428 flow [2022-01-19 01:22:39,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 561 transitions, 7146 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-01-19 01:22:39,939 INFO L242 Difference]: Finished difference. Result has 205 places, 521 transitions, 6754 flow [2022-01-19 01:22:39,939 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4829, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6754, PETRI_PLACES=205, PETRI_TRANSITIONS=521} [2022-01-19 01:22:39,940 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 46 predicate places. [2022-01-19 01:22:39,940 INFO L470 AbstractCegarLoop]: Abstraction has has 205 places, 521 transitions, 6754 flow [2022-01-19 01:22:39,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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 01:22:39,940 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:22:39,941 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:39,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 01:22:39,941 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:22:39,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:22:39,941 INFO L85 PathProgramCache]: Analyzing trace with hash 798052969, now seen corresponding path program 11 times [2022-01-19 01:22:39,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:22:39,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079578005] [2022-01-19 01:22:39,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:22:39,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:22:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:22:40,112 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 01:22:40,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:22:40,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079578005] [2022-01-19 01:22:40,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079578005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:22:40,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:22:40,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 01:22:40,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330565214] [2022-01-19 01:22:40,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:22:40,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 01:22:40,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:22:40,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 01:22:40,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-19 01:22:40,114 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 01:22:40,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 521 transitions, 6754 flow. Second operand has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 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 01:22:40,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:22:40,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 01:22:40,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:22:46,188 INFO L129 PetriNetUnfolder]: 26409/43516 cut-off events. [2022-01-19 01:22:46,188 INFO L130 PetriNetUnfolder]: For 355480/355480 co-relation queries the response was YES. [2022-01-19 01:22:46,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237788 conditions, 43516 events. 26409/43516 cut-off events. For 355480/355480 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 370246 event pairs, 3507 based on Foata normal form. 457/43172 useless extension candidates. Maximal degree in co-relation 82077. Up to 15759 conditions per place. [2022-01-19 01:22:46,622 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 192 selfloop transitions, 405 changer transitions 2/691 dead transitions. [2022-01-19 01:22:46,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 691 transitions, 9467 flow [2022-01-19 01:22:46,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 01:22:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 01:22:46,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1296 transitions. [2022-01-19 01:22:46,625 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7854545454545454 [2022-01-19 01:22:46,625 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1296 transitions. [2022-01-19 01:22:46,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1296 transitions. [2022-01-19 01:22:46,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:22:46,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1296 transitions. [2022-01-19 01:22:46,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 129.6) internal successors, (1296), 10 states have internal predecessors, (1296), 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 01:22:46,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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 01:22:46,630 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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 01:22:46,630 INFO L186 Difference]: Start difference. First operand has 205 places, 521 transitions, 6754 flow. Second operand 10 states and 1296 transitions. [2022-01-19 01:22:46,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 691 transitions, 9467 flow [2022-01-19 01:22:46,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 691 transitions, 9164 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 01:22:46,945 INFO L242 Difference]: Finished difference. Result has 211 places, 564 transitions, 8216 flow [2022-01-19 01:22:46,946 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=6490, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8216, PETRI_PLACES=211, PETRI_TRANSITIONS=564} [2022-01-19 01:22:46,946 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 52 predicate places. [2022-01-19 01:22:46,946 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 564 transitions, 8216 flow [2022-01-19 01:22:46,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 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 01:22:46,947 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:22:46,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:46,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 01:22:46,948 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:22:46,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:22:46,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1774997625, now seen corresponding path program 12 times [2022-01-19 01:22:46,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:22:46,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346952842] [2022-01-19 01:22:46,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:22:46,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:22:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:22:47,108 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 01:22:47,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:22:47,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346952842] [2022-01-19 01:22:47,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346952842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:22:47,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:22:47,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 01:22:47,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391792322] [2022-01-19 01:22:47,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:22:47,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 01:22:47,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:22:47,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 01:22:47,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-19 01:22:47,110 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 01:22:47,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 564 transitions, 8216 flow. Second operand has 9 states, 9 states have (on average 116.44444444444444) internal successors, (1048), 9 states have internal predecessors, (1048), 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 01:22:47,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:22:47,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 01:22:47,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:22:53,663 INFO L129 PetriNetUnfolder]: 26465/47012 cut-off events. [2022-01-19 01:22:53,663 INFO L130 PetriNetUnfolder]: For 435060/435060 co-relation queries the response was YES. [2022-01-19 01:22:53,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254445 conditions, 47012 events. 26465/47012 cut-off events. For 435060/435060 co-relation queries the response was YES. Maximal size of possible extension queue 1741. Compared 435910 event pairs, 4717 based on Foata normal form. 302/46438 useless extension candidates. Maximal degree in co-relation 81297. Up to 13763 conditions per place. [2022-01-19 01:22:54,135 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 227 selfloop transitions, 392 changer transitions 1/712 dead transitions. [2022-01-19 01:22:54,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 712 transitions, 10720 flow [2022-01-19 01:22:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 01:22:54,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 01:22:54,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1163 transitions. [2022-01-19 01:22:54,138 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7831649831649832 [2022-01-19 01:22:54,138 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1163 transitions. [2022-01-19 01:22:54,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1163 transitions. [2022-01-19 01:22:54,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:22:54,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1163 transitions. [2022-01-19 01:22:54,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.22222222222223) internal successors, (1163), 9 states have internal predecessors, (1163), 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 01:22:54,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 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 01:22:54,142 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 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 01:22:54,142 INFO L186 Difference]: Start difference. First operand has 211 places, 564 transitions, 8216 flow. Second operand 9 states and 1163 transitions. [2022-01-19 01:22:54,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 712 transitions, 10720 flow [2022-01-19 01:22:54,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 712 transitions, 10253 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-01-19 01:22:54,693 INFO L242 Difference]: Finished difference. Result has 213 places, 594 transitions, 9281 flow [2022-01-19 01:22:54,694 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=7787, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9281, PETRI_PLACES=213, PETRI_TRANSITIONS=594} [2022-01-19 01:22:54,694 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 54 predicate places. [2022-01-19 01:22:54,694 INFO L470 AbstractCegarLoop]: Abstraction has has 213 places, 594 transitions, 9281 flow [2022-01-19 01:22:54,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 116.44444444444444) internal successors, (1048), 9 states have internal predecessors, (1048), 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 01:22:54,695 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:22:54,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:54,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 01:22:54,695 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:22:54,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:22:54,695 INFO L85 PathProgramCache]: Analyzing trace with hash 480995595, now seen corresponding path program 13 times [2022-01-19 01:22:54,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:22:54,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504324604] [2022-01-19 01:22:54,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:22:54,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:22:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:22:54,846 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 01:22:54,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:22:54,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504324604] [2022-01-19 01:22:54,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504324604] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:22:54,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:22:54,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 01:22:54,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465810416] [2022-01-19 01:22:54,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:22:54,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 01:22:54,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:22:54,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 01:22:54,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-19 01:22:54,849 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 01:22:54,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 594 transitions, 9281 flow. Second operand has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 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 01:22:54,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:22:54,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 01:22:54,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:23:01,973 INFO L129 PetriNetUnfolder]: 27397/48818 cut-off events. [2022-01-19 01:23:01,973 INFO L130 PetriNetUnfolder]: For 500100/500129 co-relation queries the response was YES. [2022-01-19 01:23:02,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275584 conditions, 48818 events. 27397/48818 cut-off events. For 500100/500129 co-relation queries the response was YES. Maximal size of possible extension queue 1838. Compared 456899 event pairs, 4803 based on Foata normal form. 1293/49104 useless extension candidates. Maximal degree in co-relation 70927. Up to 13911 conditions per place. [2022-01-19 01:23:02,475 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 275 selfloop transitions, 472 changer transitions 1/840 dead transitions. [2022-01-19 01:23:02,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 840 transitions, 13432 flow [2022-01-19 01:23:02,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 01:23:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 01:23:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1429 transitions. [2022-01-19 01:23:02,478 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.78732782369146 [2022-01-19 01:23:02,478 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1429 transitions. [2022-01-19 01:23:02,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1429 transitions. [2022-01-19 01:23:02,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:23:02,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1429 transitions. [2022-01-19 01:23:02,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.9090909090909) internal successors, (1429), 11 states have internal predecessors, (1429), 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 01:23:02,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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 01:23:02,482 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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 01:23:02,482 INFO L186 Difference]: Start difference. First operand has 213 places, 594 transitions, 9281 flow. Second operand 11 states and 1429 transitions. [2022-01-19 01:23:02,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 840 transitions, 13432 flow [2022-01-19 01:23:03,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 840 transitions, 12585 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-01-19 01:23:03,355 INFO L242 Difference]: Finished difference. Result has 217 places, 674 transitions, 11261 flow [2022-01-19 01:23:03,355 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=8591, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=392, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11261, PETRI_PLACES=217, PETRI_TRANSITIONS=674} [2022-01-19 01:23:03,356 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 58 predicate places. [2022-01-19 01:23:03,356 INFO L470 AbstractCegarLoop]: Abstraction has has 217 places, 674 transitions, 11261 flow [2022-01-19 01:23:03,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 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 01:23:03,356 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:23:03,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:03,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 01:23:03,357 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:23:03,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:23:03,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1373239683, now seen corresponding path program 14 times [2022-01-19 01:23:03,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:23:03,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916696598] [2022-01-19 01:23:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:23:03,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:23:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:23:03,459 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 01:23:03,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:23:03,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916696598] [2022-01-19 01:23:03,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916696598] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:23:03,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:23:03,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 01:23:03,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416047824] [2022-01-19 01:23:03,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:23:03,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 01:23:03,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:23:03,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 01:23:03,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-19 01:23:03,462 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:23:03,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 674 transitions, 11261 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 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 01:23:03,463 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:23:03,463 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:23:03,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:23:08,131 INFO L129 PetriNetUnfolder]: 15479/30504 cut-off events. [2022-01-19 01:23:08,132 INFO L130 PetriNetUnfolder]: For 380728/396936 co-relation queries the response was YES. [2022-01-19 01:23:08,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173496 conditions, 30504 events. 15479/30504 cut-off events. For 380728/396936 co-relation queries the response was YES. Maximal size of possible extension queue 1511. Compared 307498 event pairs, 2037 based on Foata normal form. 4530/33345 useless extension candidates. Maximal degree in co-relation 59822. Up to 8008 conditions per place. [2022-01-19 01:23:08,475 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 113 selfloop transitions, 569 changer transitions 2/795 dead transitions. [2022-01-19 01:23:08,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 795 transitions, 14273 flow [2022-01-19 01:23:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 01:23:08,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 01:23:08,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1230 transitions. [2022-01-19 01:23:08,477 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2022-01-19 01:23:08,477 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1230 transitions. [2022-01-19 01:23:08,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1230 transitions. [2022-01-19 01:23:08,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:23:08,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1230 transitions. [2022-01-19 01:23:08,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 136.66666666666666) internal successors, (1230), 9 states have internal predecessors, (1230), 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 01:23:08,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 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 01:23:08,480 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 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 01:23:08,480 INFO L186 Difference]: Start difference. First operand has 217 places, 674 transitions, 11261 flow. Second operand 9 states and 1230 transitions. [2022-01-19 01:23:08,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 795 transitions, 14273 flow [2022-01-19 01:23:08,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 795 transitions, 13582 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-01-19 01:23:08,889 INFO L242 Difference]: Finished difference. Result has 219 places, 728 transitions, 13091 flow [2022-01-19 01:23:08,889 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=10637, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=514, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=13091, PETRI_PLACES=219, PETRI_TRANSITIONS=728} [2022-01-19 01:23:08,890 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 60 predicate places. [2022-01-19 01:23:08,890 INFO L470 AbstractCegarLoop]: Abstraction has has 219 places, 728 transitions, 13091 flow [2022-01-19 01:23:08,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 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 01:23:08,890 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:23:08,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:08,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 01:23:08,891 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:23:08,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:23:08,891 INFO L85 PathProgramCache]: Analyzing trace with hash -607118811, now seen corresponding path program 15 times [2022-01-19 01:23:08,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:23:08,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086588183] [2022-01-19 01:23:08,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:23:08,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:23:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:23:09,010 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 01:23:09,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:23:09,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086588183] [2022-01-19 01:23:09,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086588183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:23:09,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:23:09,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 01:23:09,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38099386] [2022-01-19 01:23:09,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:23:09,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 01:23:09,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:23:09,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 01:23:09,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-19 01:23:09,012 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:23:09,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 728 transitions, 13091 flow. Second operand has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 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 01:23:09,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:23:09,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:23:09,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:23:13,872 INFO L129 PetriNetUnfolder]: 15027/31282 cut-off events. [2022-01-19 01:23:13,872 INFO L130 PetriNetUnfolder]: For 403358/418218 co-relation queries the response was YES. [2022-01-19 01:23:14,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177232 conditions, 31282 events. 15027/31282 cut-off events. For 403358/418218 co-relation queries the response was YES. Maximal size of possible extension queue 1606. Compared 330068 event pairs, 2122 based on Foata normal form. 4131/33816 useless extension candidates. Maximal degree in co-relation 57623. Up to 7362 conditions per place. [2022-01-19 01:23:14,221 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 156 selfloop transitions, 554 changer transitions 3/824 dead transitions. [2022-01-19 01:23:14,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 824 transitions, 15613 flow [2022-01-19 01:23:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 01:23:14,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 01:23:14,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1093 transitions. [2022-01-19 01:23:14,222 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.828030303030303 [2022-01-19 01:23:14,222 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1093 transitions. [2022-01-19 01:23:14,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1093 transitions. [2022-01-19 01:23:14,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:23:14,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1093 transitions. [2022-01-19 01:23:14,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.625) internal successors, (1093), 8 states have internal predecessors, (1093), 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 01:23:14,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 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 01:23:14,225 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 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 01:23:14,225 INFO L186 Difference]: Start difference. First operand has 219 places, 728 transitions, 13091 flow. Second operand 8 states and 1093 transitions. [2022-01-19 01:23:14,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 824 transitions, 15613 flow [2022-01-19 01:23:14,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 824 transitions, 14827 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 01:23:14,593 INFO L242 Difference]: Finished difference. Result has 221 places, 756 transitions, 14219 flow [2022-01-19 01:23:14,594 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=12327, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=524, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14219, PETRI_PLACES=221, PETRI_TRANSITIONS=756} [2022-01-19 01:23:14,594 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 62 predicate places. [2022-01-19 01:23:14,594 INFO L470 AbstractCegarLoop]: Abstraction has has 221 places, 756 transitions, 14219 flow [2022-01-19 01:23:14,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 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 01:23:14,595 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:23:14,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:14,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 01:23:14,595 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:23:14,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:23:14,596 INFO L85 PathProgramCache]: Analyzing trace with hash 477228837, now seen corresponding path program 16 times [2022-01-19 01:23:14,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:23:14,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783581155] [2022-01-19 01:23:14,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:23:14,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:23:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:23:14,703 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 01:23:14,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:23:14,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783581155] [2022-01-19 01:23:14,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783581155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:23:14,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:23:14,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 01:23:14,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052627589] [2022-01-19 01:23:14,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:23:14,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 01:23:14,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:23:14,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 01:23:14,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-19 01:23:14,710 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:23:14,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 756 transitions, 14219 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 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 01:23:14,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:23:14,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:23:14,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:23:19,769 INFO L129 PetriNetUnfolder]: 14582/30749 cut-off events. [2022-01-19 01:23:19,770 INFO L130 PetriNetUnfolder]: For 429130/443928 co-relation queries the response was YES. [2022-01-19 01:23:19,954 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177544 conditions, 30749 events. 14582/30749 cut-off events. For 429130/443928 co-relation queries the response was YES. Maximal size of possible extension queue 1541. Compared 328445 event pairs, 1991 based on Foata normal form. 4231/33535 useless extension candidates. Maximal degree in co-relation 101100. Up to 6722 conditions per place. [2022-01-19 01:23:20,111 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 181 selfloop transitions, 617 changer transitions 5/914 dead transitions. [2022-01-19 01:23:20,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 914 transitions, 17974 flow [2022-01-19 01:23:20,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 01:23:20,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 01:23:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1367 transitions. [2022-01-19 01:23:20,113 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8284848484848485 [2022-01-19 01:23:20,113 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1367 transitions. [2022-01-19 01:23:20,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1367 transitions. [2022-01-19 01:23:20,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:23:20,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1367 transitions. [2022-01-19 01:23:20,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 136.7) internal successors, (1367), 10 states have internal predecessors, (1367), 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 01:23:20,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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 01:23:20,115 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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 01:23:20,116 INFO L186 Difference]: Start difference. First operand has 221 places, 756 transitions, 14219 flow. Second operand 10 states and 1367 transitions. [2022-01-19 01:23:20,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 914 transitions, 17974 flow [2022-01-19 01:23:20,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 914 transitions, 17002 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-01-19 01:23:20,490 INFO L242 Difference]: Finished difference. Result has 225 places, 819 transitions, 16178 flow [2022-01-19 01:23:20,490 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=13344, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=552, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16178, PETRI_PLACES=225, PETRI_TRANSITIONS=819} [2022-01-19 01:23:20,491 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 66 predicate places. [2022-01-19 01:23:20,491 INFO L470 AbstractCegarLoop]: Abstraction has has 225 places, 819 transitions, 16178 flow [2022-01-19 01:23:20,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 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 01:23:20,491 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:23:20,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:20,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 01:23:20,492 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:23:20,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:23:20,492 INFO L85 PathProgramCache]: Analyzing trace with hash 149891473, now seen corresponding path program 17 times [2022-01-19 01:23:20,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:23:20,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200427769] [2022-01-19 01:23:20,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:23:20,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:23:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:23:20,604 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 01:23:20,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:23:20,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200427769] [2022-01-19 01:23:20,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200427769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:23:20,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:23:20,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 01:23:20,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63708448] [2022-01-19 01:23:20,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:23:20,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 01:23:20,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:23:20,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 01:23:20,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-19 01:23:20,606 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:23:20,607 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 819 transitions, 16178 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 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 01:23:20,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:23:20,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:23:20,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:23:25,807 INFO L129 PetriNetUnfolder]: 13644/29622 cut-off events. [2022-01-19 01:23:25,807 INFO L130 PetriNetUnfolder]: For 430811/442925 co-relation queries the response was YES. [2022-01-19 01:23:25,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172092 conditions, 29622 events. 13644/29622 cut-off events. For 430811/442925 co-relation queries the response was YES. Maximal size of possible extension queue 1532. Compared 321492 event pairs, 1995 based on Foata normal form. 3362/31557 useless extension candidates. Maximal degree in co-relation 66242. Up to 6385 conditions per place. [2022-01-19 01:23:26,131 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 177 selfloop transitions, 667 changer transitions 13/968 dead transitions. [2022-01-19 01:23:26,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 968 transitions, 19921 flow [2022-01-19 01:23:26,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 01:23:26,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 01:23:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1364 transitions. [2022-01-19 01:23:26,133 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8266666666666667 [2022-01-19 01:23:26,133 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1364 transitions. [2022-01-19 01:23:26,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1364 transitions. [2022-01-19 01:23:26,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:23:26,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1364 transitions. [2022-01-19 01:23:26,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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 01:23:26,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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 01:23:26,136 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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 01:23:26,136 INFO L186 Difference]: Start difference. First operand has 225 places, 819 transitions, 16178 flow. Second operand 10 states and 1364 transitions. [2022-01-19 01:23:26,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 968 transitions, 19921 flow [2022-01-19 01:23:26,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 968 transitions, 19793 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 01:23:26,559 INFO L242 Difference]: Finished difference. Result has 232 places, 869 transitions, 18793 flow [2022-01-19 01:23:26,560 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=15990, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=816, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=606, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=18793, PETRI_PLACES=232, PETRI_TRANSITIONS=869} [2022-01-19 01:23:26,561 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 73 predicate places. [2022-01-19 01:23:26,561 INFO L470 AbstractCegarLoop]: Abstraction has has 232 places, 869 transitions, 18793 flow [2022-01-19 01:23:26,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 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 01:23:26,561 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:23:26,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:26,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 01:23:26,563 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:23:26,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:23:26,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1012830015, now seen corresponding path program 18 times [2022-01-19 01:23:26,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:23:26,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954334776] [2022-01-19 01:23:26,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:23:26,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:23:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:23:26,706 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 01:23:26,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:23:26,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954334776] [2022-01-19 01:23:26,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954334776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:23:26,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:23:26,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 01:23:26,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494486137] [2022-01-19 01:23:26,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:23:26,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 01:23:26,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:23:26,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 01:23:26,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-19 01:23:26,709 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 01:23:26,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 869 transitions, 18793 flow. Second operand has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 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 01:23:26,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:23:26,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 01:23:26,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:23:35,688 INFO L129 PetriNetUnfolder]: 23301/42640 cut-off events. [2022-01-19 01:23:35,688 INFO L130 PetriNetUnfolder]: For 644544/644544 co-relation queries the response was YES. [2022-01-19 01:23:36,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 278365 conditions, 42640 events. 23301/42640 cut-off events. For 644544/644544 co-relation queries the response was YES. Maximal size of possible extension queue 1766. Compared 413297 event pairs, 2775 based on Foata normal form. 249/42095 useless extension candidates. Maximal degree in co-relation 100418. Up to 13889 conditions per place. [2022-01-19 01:23:36,580 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 211 selfloop transitions, 741 changer transitions 5/1049 dead transitions. [2022-01-19 01:23:36,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 1049 transitions, 22120 flow [2022-01-19 01:23:36,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 01:23:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 01:23:36,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1428 transitions. [2022-01-19 01:23:36,581 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7867768595041322 [2022-01-19 01:23:36,582 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1428 transitions. [2022-01-19 01:23:36,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1428 transitions. [2022-01-19 01:23:36,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:23:36,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1428 transitions. [2022-01-19 01:23:36,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.8181818181818) internal successors, (1428), 11 states have internal predecessors, (1428), 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 01:23:36,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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 01:23:36,584 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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 01:23:36,585 INFO L186 Difference]: Start difference. First operand has 232 places, 869 transitions, 18793 flow. Second operand 11 states and 1428 transitions. [2022-01-19 01:23:36,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 1049 transitions, 22120 flow [2022-01-19 01:23:37,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 1049 transitions, 21984 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 01:23:37,897 INFO L242 Difference]: Finished difference. Result has 240 places, 900 transitions, 20926 flow [2022-01-19 01:23:37,898 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=18665, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=869, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=710, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20926, PETRI_PLACES=240, PETRI_TRANSITIONS=900} [2022-01-19 01:23:37,899 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 81 predicate places. [2022-01-19 01:23:37,899 INFO L470 AbstractCegarLoop]: Abstraction has has 240 places, 900 transitions, 20926 flow [2022-01-19 01:23:37,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 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 01:23:37,899 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:23:37,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:37,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 01:23:37,900 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:23:37,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:23:37,900 INFO L85 PathProgramCache]: Analyzing trace with hash 687054829, now seen corresponding path program 19 times [2022-01-19 01:23:37,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:23:37,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185345142] [2022-01-19 01:23:37,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:23:37,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:23:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:23:38,044 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 01:23:38,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:23:38,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185345142] [2022-01-19 01:23:38,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185345142] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:23:38,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:23:38,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 01:23:38,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339305535] [2022-01-19 01:23:38,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:23:38,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 01:23:38,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:23:38,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 01:23:38,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-19 01:23:38,047 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 01:23:38,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 900 transitions, 20926 flow. Second operand has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 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 01:23:38,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:23:38,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 01:23:38,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:23:44,192 INFO L129 PetriNetUnfolder]: 14114/28108 cut-off events. [2022-01-19 01:23:44,193 INFO L130 PetriNetUnfolder]: For 446043/446057 co-relation queries the response was YES. [2022-01-19 01:23:44,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193679 conditions, 28108 events. 14114/28108 cut-off events. For 446043/446057 co-relation queries the response was YES. Maximal size of possible extension queue 1334. Compared 277297 event pairs, 2090 based on Foata normal form. 1479/28910 useless extension candidates. Maximal degree in co-relation 113960. Up to 6832 conditions per place. [2022-01-19 01:23:44,490 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 252 selfloop transitions, 742 changer transitions 56/1142 dead transitions. [2022-01-19 01:23:44,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 1142 transitions, 26811 flow [2022-01-19 01:23:44,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 01:23:44,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 01:23:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1421 transitions. [2022-01-19 01:23:44,491 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7829201101928375 [2022-01-19 01:23:44,492 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1421 transitions. [2022-01-19 01:23:44,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1421 transitions. [2022-01-19 01:23:44,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:23:44,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1421 transitions. [2022-01-19 01:23:44,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.1818181818182) internal successors, (1421), 11 states have internal predecessors, (1421), 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 01:23:44,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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 01:23:44,495 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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 01:23:44,495 INFO L186 Difference]: Start difference. First operand has 240 places, 900 transitions, 20926 flow. Second operand 11 states and 1421 transitions. [2022-01-19 01:23:44,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 1142 transitions, 26811 flow [2022-01-19 01:23:45,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1142 transitions, 25287 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-01-19 01:23:45,578 INFO L242 Difference]: Finished difference. Result has 245 places, 950 transitions, 22998 flow [2022-01-19 01:23:45,579 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=18826, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=870, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=644, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22998, PETRI_PLACES=245, PETRI_TRANSITIONS=950} [2022-01-19 01:23:45,579 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 86 predicate places. [2022-01-19 01:23:45,579 INFO L470 AbstractCegarLoop]: Abstraction has has 245 places, 950 transitions, 22998 flow [2022-01-19 01:23:45,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 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 01:23:45,580 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:23:45,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:45,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 01:23:45,580 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:23:45,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:23:45,580 INFO L85 PathProgramCache]: Analyzing trace with hash 674938377, now seen corresponding path program 20 times [2022-01-19 01:23:45,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:23:45,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600161597] [2022-01-19 01:23:45,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:23:45,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:23:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:23:45,701 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 01:23:45,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:23:45,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600161597] [2022-01-19 01:23:45,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600161597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:23:45,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:23:45,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 01:23:45,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218730510] [2022-01-19 01:23:45,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:23:45,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 01:23:45,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:23:45,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 01:23:45,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-19 01:23:45,704 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:23:45,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 950 transitions, 22998 flow. Second operand has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 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 01:23:45,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:23:45,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:23:45,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:23:50,323 INFO L129 PetriNetUnfolder]: 8623/20282 cut-off events. [2022-01-19 01:23:50,324 INFO L130 PetriNetUnfolder]: For 362594/369465 co-relation queries the response was YES. [2022-01-19 01:23:50,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137246 conditions, 20282 events. 8623/20282 cut-off events. For 362594/369465 co-relation queries the response was YES. Maximal size of possible extension queue 1106. Compared 218908 event pairs, 964 based on Foata normal form. 2455/21922 useless extension candidates. Maximal degree in co-relation 59589. Up to 4193 conditions per place. [2022-01-19 01:23:50,523 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 125 selfloop transitions, 863 changer transitions 39/1138 dead transitions. [2022-01-19 01:23:50,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 1138 transitions, 28351 flow [2022-01-19 01:23:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 01:23:50,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 01:23:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1498 transitions. [2022-01-19 01:23:50,525 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8253443526170798 [2022-01-19 01:23:50,525 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1498 transitions. [2022-01-19 01:23:50,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1498 transitions. [2022-01-19 01:23:50,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:23:50,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1498 transitions. [2022-01-19 01:23:50,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 136.1818181818182) internal successors, (1498), 11 states have internal predecessors, (1498), 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 01:23:50,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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 01:23:50,528 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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 01:23:50,528 INFO L186 Difference]: Start difference. First operand has 245 places, 950 transitions, 22998 flow. Second operand 11 states and 1498 transitions. [2022-01-19 01:23:50,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 1138 transitions, 28351 flow [2022-01-19 01:23:51,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 1138 transitions, 28020 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-01-19 01:23:51,285 INFO L242 Difference]: Finished difference. Result has 251 places, 1022 transitions, 26649 flow [2022-01-19 01:23:51,286 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=22700, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=950, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=767, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=26649, PETRI_PLACES=251, PETRI_TRANSITIONS=1022} [2022-01-19 01:23:51,286 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 92 predicate places. [2022-01-19 01:23:51,286 INFO L470 AbstractCegarLoop]: Abstraction has has 251 places, 1022 transitions, 26649 flow [2022-01-19 01:23:51,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 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 01:23:51,287 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:23:51,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:51,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 01:23:51,287 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:23:51,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:23:51,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2131165535, now seen corresponding path program 21 times [2022-01-19 01:23:51,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:23:51,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941600053] [2022-01-19 01:23:51,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:23:51,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:23:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:23:51,429 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 01:23:51,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:23:51,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941600053] [2022-01-19 01:23:51,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941600053] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:23:51,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:23:51,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 01:23:51,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743472777] [2022-01-19 01:23:51,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:23:51,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 01:23:51,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:23:51,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 01:23:51,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-19 01:23:51,432 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:23:51,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 1022 transitions, 26649 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:23:51,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:23:51,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:23:51,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:23:56,493 INFO L129 PetriNetUnfolder]: 8579/21312 cut-off events. [2022-01-19 01:23:56,493 INFO L130 PetriNetUnfolder]: For 442446/450043 co-relation queries the response was YES. [2022-01-19 01:23:56,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148542 conditions, 21312 events. 8579/21312 cut-off events. For 442446/450043 co-relation queries the response was YES. Maximal size of possible extension queue 1216. Compared 239704 event pairs, 1093 based on Foata normal form. 2411/22916 useless extension candidates. Maximal degree in co-relation 64724. Up to 4338 conditions per place. [2022-01-19 01:23:56,748 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 160 selfloop transitions, 979 changer transitions 34/1284 dead transitions. [2022-01-19 01:23:56,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 1284 transitions, 34068 flow [2022-01-19 01:23:56,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 01:23:56,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 01:23:56,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1908 transitions. [2022-01-19 01:23:56,749 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.825974025974026 [2022-01-19 01:23:56,749 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1908 transitions. [2022-01-19 01:23:56,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1908 transitions. [2022-01-19 01:23:56,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:23:56,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1908 transitions. [2022-01-19 01:23:56,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 136.28571428571428) internal successors, (1908), 14 states have internal predecessors, (1908), 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 01:23:56,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 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 01:23:56,753 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 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 01:23:56,753 INFO L186 Difference]: Start difference. First operand has 251 places, 1022 transitions, 26649 flow. Second operand 14 states and 1908 transitions. [2022-01-19 01:23:56,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 1284 transitions, 34068 flow [2022-01-19 01:23:57,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 1284 transitions, 33443 flow, removed 11 selfloop flow, removed 6 redundant places. [2022-01-19 01:23:58,000 INFO L242 Difference]: Finished difference. Result has 261 places, 1138 transitions, 31502 flow [2022-01-19 01:23:58,001 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=26034, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1018, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=838, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=31502, PETRI_PLACES=261, PETRI_TRANSITIONS=1138} [2022-01-19 01:23:58,001 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 102 predicate places. [2022-01-19 01:23:58,001 INFO L470 AbstractCegarLoop]: Abstraction has has 261 places, 1138 transitions, 31502 flow [2022-01-19 01:23:58,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:23:58,001 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:23:58,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:58,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 01:23:58,002 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:23:58,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:23:58,002 INFO L85 PathProgramCache]: Analyzing trace with hash 449738703, now seen corresponding path program 22 times [2022-01-19 01:23:58,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:23:58,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127555234] [2022-01-19 01:23:58,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:23:58,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:23:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:23:58,165 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 01:23:58,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:23:58,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127555234] [2022-01-19 01:23:58,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127555234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:23:58,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:23:58,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 01:23:58,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949273341] [2022-01-19 01:23:58,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:23:58,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 01:23:58,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:23:58,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 01:23:58,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-19 01:23:58,168 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:23:58,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 1138 transitions, 31502 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:23:58,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:23:58,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:23:58,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:03,887 INFO L129 PetriNetUnfolder]: 8582/21892 cut-off events. [2022-01-19 01:24:03,887 INFO L130 PetriNetUnfolder]: For 500025/507571 co-relation queries the response was YES. [2022-01-19 01:24:04,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157580 conditions, 21892 events. 8582/21892 cut-off events. For 500025/507571 co-relation queries the response was YES. Maximal size of possible extension queue 1269. Compared 252427 event pairs, 976 based on Foata normal form. 2078/23177 useless extension candidates. Maximal degree in co-relation 95043. Up to 4433 conditions per place. [2022-01-19 01:24:04,130 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 154 selfloop transitions, 1023 changer transitions 52/1340 dead transitions. [2022-01-19 01:24:04,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 1340 transitions, 37317 flow [2022-01-19 01:24:04,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 01:24:04,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 01:24:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1902 transitions. [2022-01-19 01:24:04,132 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8233766233766234 [2022-01-19 01:24:04,132 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1902 transitions. [2022-01-19 01:24:04,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1902 transitions. [2022-01-19 01:24:04,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:04,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1902 transitions. [2022-01-19 01:24:04,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 135.85714285714286) internal successors, (1902), 14 states have internal predecessors, (1902), 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 01:24:04,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 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 01:24:04,135 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 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 01:24:04,135 INFO L186 Difference]: Start difference. First operand has 261 places, 1138 transitions, 31502 flow. Second operand 14 states and 1902 transitions. [2022-01-19 01:24:04,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 1340 transitions, 37317 flow [2022-01-19 01:24:05,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 1340 transitions, 36477 flow, removed 10 selfloop flow, removed 6 redundant places. [2022-01-19 01:24:05,526 INFO L242 Difference]: Finished difference. Result has 271 places, 1182 transitions, 33729 flow [2022-01-19 01:24:05,527 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=30754, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=937, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33729, PETRI_PLACES=271, PETRI_TRANSITIONS=1182} [2022-01-19 01:24:05,527 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 112 predicate places. [2022-01-19 01:24:05,527 INFO L470 AbstractCegarLoop]: Abstraction has has 271 places, 1182 transitions, 33729 flow [2022-01-19 01:24:05,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:24:05,528 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:05,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:05,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 01:24:05,528 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:05,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:05,528 INFO L85 PathProgramCache]: Analyzing trace with hash -560873309, now seen corresponding path program 23 times [2022-01-19 01:24:05,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:05,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849337682] [2022-01-19 01:24:05,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:05,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:24:05,648 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 01:24:05,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:24:05,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849337682] [2022-01-19 01:24:05,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849337682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:24:05,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:24:05,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 01:24:05,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824411627] [2022-01-19 01:24:05,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:24:05,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 01:24:05,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:24:05,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 01:24:05,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-19 01:24:05,653 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:24:05,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 1182 transitions, 33729 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:24:05,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:24:05,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:24:05,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:11,677 INFO L129 PetriNetUnfolder]: 8382/21715 cut-off events. [2022-01-19 01:24:11,677 INFO L130 PetriNetUnfolder]: For 555200/561610 co-relation queries the response was YES. [2022-01-19 01:24:11,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163554 conditions, 21715 events. 8382/21715 cut-off events. For 555200/561610 co-relation queries the response was YES. Maximal size of possible extension queue 1308. Compared 253808 event pairs, 1083 based on Foata normal form. 1902/22811 useless extension candidates. Maximal degree in co-relation 81573. Up to 4467 conditions per place. [2022-01-19 01:24:12,154 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 144 selfloop transitions, 1043 changer transitions 94/1392 dead transitions. [2022-01-19 01:24:12,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 1392 transitions, 40567 flow [2022-01-19 01:24:12,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 01:24:12,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 01:24:12,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1900 transitions. [2022-01-19 01:24:12,156 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8225108225108225 [2022-01-19 01:24:12,156 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1900 transitions. [2022-01-19 01:24:12,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1900 transitions. [2022-01-19 01:24:12,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:12,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1900 transitions. [2022-01-19 01:24:12,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 135.71428571428572) internal successors, (1900), 14 states have internal predecessors, (1900), 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 01:24:12,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 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 01:24:12,160 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 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 01:24:12,160 INFO L186 Difference]: Start difference. First operand has 271 places, 1182 transitions, 33729 flow. Second operand 14 states and 1900 transitions. [2022-01-19 01:24:12,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 1392 transitions, 40567 flow [2022-01-19 01:24:13,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 1392 transitions, 39142 flow, removed 22 selfloop flow, removed 8 redundant places. [2022-01-19 01:24:13,730 INFO L242 Difference]: Finished difference. Result has 278 places, 1202 transitions, 34772 flow [2022-01-19 01:24:13,731 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=32457, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=945, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=34772, PETRI_PLACES=278, PETRI_TRANSITIONS=1202} [2022-01-19 01:24:13,731 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 119 predicate places. [2022-01-19 01:24:13,731 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 1202 transitions, 34772 flow [2022-01-19 01:24:13,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:24:13,732 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:13,732 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:13,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 01:24:13,732 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:13,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:13,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1307665657, now seen corresponding path program 24 times [2022-01-19 01:24:13,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:13,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109681053] [2022-01-19 01:24:13,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:13,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:24:13,859 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 01:24:13,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:24:13,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109681053] [2022-01-19 01:24:13,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109681053] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:24:13,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:24:13,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 01:24:13,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830564937] [2022-01-19 01:24:13,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:24:13,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 01:24:13,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:24:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 01:24:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-19 01:24:13,861 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:24:13,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 1202 transitions, 34772 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:24:13,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:24:13,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:24:13,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:19,616 INFO L129 PetriNetUnfolder]: 7191/19649 cut-off events. [2022-01-19 01:24:19,616 INFO L130 PetriNetUnfolder]: For 523832/529639 co-relation queries the response was YES. [2022-01-19 01:24:19,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152703 conditions, 19649 events. 7191/19649 cut-off events. For 523832/529639 co-relation queries the response was YES. Maximal size of possible extension queue 1262. Compared 233728 event pairs, 814 based on Foata normal form. 2021/20974 useless extension candidates. Maximal degree in co-relation 105532. Up to 4128 conditions per place. [2022-01-19 01:24:20,039 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 156 selfloop transitions, 1048 changer transitions 112/1427 dead transitions. [2022-01-19 01:24:20,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 1427 transitions, 41730 flow [2022-01-19 01:24:20,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 01:24:20,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 01:24:20,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1907 transitions. [2022-01-19 01:24:20,042 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8255411255411256 [2022-01-19 01:24:20,042 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1907 transitions. [2022-01-19 01:24:20,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1907 transitions. [2022-01-19 01:24:20,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:20,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1907 transitions. [2022-01-19 01:24:20,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 136.21428571428572) internal successors, (1907), 14 states have internal predecessors, (1907), 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 01:24:20,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 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 01:24:20,046 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 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 01:24:20,046 INFO L186 Difference]: Start difference. First operand has 278 places, 1202 transitions, 34772 flow. Second operand 14 states and 1907 transitions. [2022-01-19 01:24:20,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 1427 transitions, 41730 flow [2022-01-19 01:24:21,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 1427 transitions, 41605 flow, removed 11 selfloop flow, removed 4 redundant places. [2022-01-19 01:24:21,489 INFO L242 Difference]: Finished difference. Result has 290 places, 1205 transitions, 36379 flow [2022-01-19 01:24:21,490 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=34446, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=939, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=36379, PETRI_PLACES=290, PETRI_TRANSITIONS=1205} [2022-01-19 01:24:21,490 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 131 predicate places. [2022-01-19 01:24:21,490 INFO L470 AbstractCegarLoop]: Abstraction has has 290 places, 1205 transitions, 36379 flow [2022-01-19 01:24:21,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:24:21,490 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:21,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:21,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 01:24:21,491 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:21,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:21,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2145194715, now seen corresponding path program 25 times [2022-01-19 01:24:21,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:21,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128001583] [2022-01-19 01:24:21,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:21,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:24:21,630 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 01:24:21,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:24:21,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128001583] [2022-01-19 01:24:21,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128001583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:24:21,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:24:21,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 01:24:21,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320917857] [2022-01-19 01:24:21,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:24:21,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 01:24:21,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:24:21,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 01:24:21,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-01-19 01:24:21,633 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:24:21,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 1205 transitions, 36379 flow. Second operand has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 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 01:24:21,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:24:21,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:24:21,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:26,631 INFO L129 PetriNetUnfolder]: 6096/16699 cut-off events. [2022-01-19 01:24:26,631 INFO L130 PetriNetUnfolder]: For 479629/484041 co-relation queries the response was YES. [2022-01-19 01:24:26,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131979 conditions, 16699 events. 6096/16699 cut-off events. For 479629/484041 co-relation queries the response was YES. Maximal size of possible extension queue 1048. Compared 193442 event pairs, 810 based on Foata normal form. 1258/17290 useless extension candidates. Maximal degree in co-relation 67277. Up to 3543 conditions per place. [2022-01-19 01:24:26,817 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 99 selfloop transitions, 1071 changer transitions 2/1283 dead transitions. [2022-01-19 01:24:26,817 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 1283 transitions, 39438 flow [2022-01-19 01:24:26,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 01:24:26,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 01:24:26,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1617 transitions. [2022-01-19 01:24:26,819 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2022-01-19 01:24:26,819 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1617 transitions. [2022-01-19 01:24:26,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1617 transitions. [2022-01-19 01:24:26,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:26,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1617 transitions. [2022-01-19 01:24:26,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 134.75) internal successors, (1617), 12 states have internal predecessors, (1617), 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 01:24:26,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 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 01:24:26,823 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 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 01:24:26,823 INFO L186 Difference]: Start difference. First operand has 290 places, 1205 transitions, 36379 flow. Second operand 12 states and 1617 transitions. [2022-01-19 01:24:26,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 1283 transitions, 39438 flow [2022-01-19 01:24:28,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 1283 transitions, 39318 flow, removed 8 selfloop flow, removed 4 redundant places. [2022-01-19 01:24:28,105 INFO L242 Difference]: Finished difference. Result has 298 places, 1213 transitions, 38546 flow [2022-01-19 01:24:28,106 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=36263, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1063, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=38546, PETRI_PLACES=298, PETRI_TRANSITIONS=1213} [2022-01-19 01:24:28,106 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 139 predicate places. [2022-01-19 01:24:28,106 INFO L470 AbstractCegarLoop]: Abstraction has has 298 places, 1213 transitions, 38546 flow [2022-01-19 01:24:28,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 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 01:24:28,107 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:28,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:28,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 01:24:28,107 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:28,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:28,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1450747203, now seen corresponding path program 26 times [2022-01-19 01:24:28,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:28,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985496168] [2022-01-19 01:24:28,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:28,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:24:28,387 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 01:24:28,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:24:28,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985496168] [2022-01-19 01:24:28,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985496168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:24:28,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:24:28,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-19 01:24:28,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172944968] [2022-01-19 01:24:28,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:24:28,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-19 01:24:28,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:24:28,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-19 01:24:28,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-19 01:24:28,390 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:24:28,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 1213 transitions, 38546 flow. Second operand has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 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 01:24:28,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:24:28,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:24:28,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:33,743 INFO L129 PetriNetUnfolder]: 6214/17589 cut-off events. [2022-01-19 01:24:33,743 INFO L130 PetriNetUnfolder]: For 558862/562642 co-relation queries the response was YES. [2022-01-19 01:24:33,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142061 conditions, 17589 events. 6214/17589 cut-off events. For 558862/562642 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 207421 event pairs, 759 based on Foata normal form. 1158/18097 useless extension candidates. Maximal degree in co-relation 72409. Up to 3345 conditions per place. [2022-01-19 01:24:33,924 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 112 selfloop transitions, 971 changer transitions 219/1413 dead transitions. [2022-01-19 01:24:33,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 1413 transitions, 44724 flow [2022-01-19 01:24:33,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 01:24:33,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 01:24:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2532 transitions. [2022-01-19 01:24:33,927 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8076555023923445 [2022-01-19 01:24:33,927 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2532 transitions. [2022-01-19 01:24:33,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2532 transitions. [2022-01-19 01:24:33,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:33,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2532 transitions. [2022-01-19 01:24:33,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 133.26315789473685) internal successors, (2532), 19 states have internal predecessors, (2532), 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 01:24:33,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 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 01:24:33,932 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 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 01:24:33,932 INFO L186 Difference]: Start difference. First operand has 298 places, 1213 transitions, 38546 flow. Second operand 19 states and 2532 transitions. [2022-01-19 01:24:33,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 1413 transitions, 44724 flow [2022-01-19 01:24:35,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 1413 transitions, 42788 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-01-19 01:24:35,268 INFO L242 Difference]: Finished difference. Result has 311 places, 1113 transitions, 34759 flow [2022-01-19 01:24:35,269 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=36768, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=959, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=34759, PETRI_PLACES=311, PETRI_TRANSITIONS=1113} [2022-01-19 01:24:35,270 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 152 predicate places. [2022-01-19 01:24:35,270 INFO L470 AbstractCegarLoop]: Abstraction has has 311 places, 1113 transitions, 34759 flow [2022-01-19 01:24:35,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 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 01:24:35,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:35,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:35,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 01:24:35,271 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:35,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:35,271 INFO L85 PathProgramCache]: Analyzing trace with hash 622859459, now seen corresponding path program 27 times [2022-01-19 01:24:35,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:35,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972667299] [2022-01-19 01:24:35,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:35,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:24:35,414 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 01:24:35,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:24:35,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972667299] [2022-01-19 01:24:35,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972667299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:24:35,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:24:35,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-19 01:24:35,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100095972] [2022-01-19 01:24:35,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:24:35,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-19 01:24:35,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:24:35,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-19 01:24:35,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-19 01:24:35,417 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:24:35,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 1113 transitions, 34759 flow. Second operand has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 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 01:24:35,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:24:35,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:24:35,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:40,279 INFO L129 PetriNetUnfolder]: 5742/16330 cut-off events. [2022-01-19 01:24:40,279 INFO L130 PetriNetUnfolder]: For 532886/536208 co-relation queries the response was YES. [2022-01-19 01:24:40,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132989 conditions, 16330 events. 5742/16330 cut-off events. For 532886/536208 co-relation queries the response was YES. Maximal size of possible extension queue 994. Compared 191409 event pairs, 770 based on Foata normal form. 1114/16806 useless extension candidates. Maximal degree in co-relation 66601. Up to 2976 conditions per place. [2022-01-19 01:24:40,469 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 144 selfloop transitions, 994 changer transitions 45/1294 dead transitions. [2022-01-19 01:24:40,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 1294 transitions, 39783 flow [2022-01-19 01:24:40,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 01:24:40,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 01:24:40,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2537 transitions. [2022-01-19 01:24:40,471 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8092503987240829 [2022-01-19 01:24:40,471 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2537 transitions. [2022-01-19 01:24:40,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2537 transitions. [2022-01-19 01:24:40,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:40,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2537 transitions. [2022-01-19 01:24:40,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 133.52631578947367) internal successors, (2537), 19 states have internal predecessors, (2537), 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 01:24:40,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 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 01:24:40,478 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 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 01:24:40,478 INFO L186 Difference]: Start difference. First operand has 311 places, 1113 transitions, 34759 flow. Second operand 19 states and 2537 transitions. [2022-01-19 01:24:40,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 1294 transitions, 39783 flow [2022-01-19 01:24:41,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 1294 transitions, 39295 flow, removed 28 selfloop flow, removed 8 redundant places. [2022-01-19 01:24:41,808 INFO L242 Difference]: Finished difference. Result has 319 places, 1135 transitions, 36397 flow [2022-01-19 01:24:41,809 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=34351, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=933, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=36397, PETRI_PLACES=319, PETRI_TRANSITIONS=1135} [2022-01-19 01:24:41,809 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 160 predicate places. [2022-01-19 01:24:41,809 INFO L470 AbstractCegarLoop]: Abstraction has has 319 places, 1135 transitions, 36397 flow [2022-01-19 01:24:41,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 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 01:24:41,810 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:41,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:41,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 01:24:41,810 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:41,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:41,811 INFO L85 PathProgramCache]: Analyzing trace with hash 962210639, now seen corresponding path program 28 times [2022-01-19 01:24:41,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:41,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752365174] [2022-01-19 01:24:41,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:41,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:24:41,932 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 01:24:41,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:24:41,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752365174] [2022-01-19 01:24:41,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752365174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:24:41,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:24:41,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-19 01:24:41,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295926491] [2022-01-19 01:24:41,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:24:41,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-19 01:24:41,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:24:41,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-19 01:24:41,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-19 01:24:41,935 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:24:41,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 1135 transitions, 36397 flow. Second operand has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 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 01:24:41,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:24:41,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:24:41,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:47,093 INFO L129 PetriNetUnfolder]: 5786/16206 cut-off events. [2022-01-19 01:24:47,093 INFO L130 PetriNetUnfolder]: For 548467/552119 co-relation queries the response was YES. [2022-01-19 01:24:47,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136598 conditions, 16206 events. 5786/16206 cut-off events. For 548467/552119 co-relation queries the response was YES. Maximal size of possible extension queue 997. Compared 189833 event pairs, 786 based on Foata normal form. 1136/16693 useless extension candidates. Maximal degree in co-relation 65594. Up to 3040 conditions per place. [2022-01-19 01:24:47,268 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 138 selfloop transitions, 984 changer transitions 49/1282 dead transitions. [2022-01-19 01:24:47,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 1282 transitions, 40669 flow [2022-01-19 01:24:47,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 01:24:47,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 01:24:47,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2531 transitions. [2022-01-19 01:24:47,270 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8073365231259968 [2022-01-19 01:24:47,270 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2531 transitions. [2022-01-19 01:24:47,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2531 transitions. [2022-01-19 01:24:47,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:47,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2531 transitions. [2022-01-19 01:24:47,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 133.21052631578948) internal successors, (2531), 19 states have internal predecessors, (2531), 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 01:24:47,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 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 01:24:47,275 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 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 01:24:47,275 INFO L186 Difference]: Start difference. First operand has 319 places, 1135 transitions, 36397 flow. Second operand 19 states and 2531 transitions. [2022-01-19 01:24:47,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 1282 transitions, 40669 flow [2022-01-19 01:24:48,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 1282 transitions, 40317 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-01-19 01:24:48,536 INFO L242 Difference]: Finished difference. Result has 334 places, 1125 transitions, 37225 flow [2022-01-19 01:24:48,537 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=36063, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=952, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=37225, PETRI_PLACES=334, PETRI_TRANSITIONS=1125} [2022-01-19 01:24:48,538 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 175 predicate places. [2022-01-19 01:24:48,538 INFO L470 AbstractCegarLoop]: Abstraction has has 334 places, 1125 transitions, 37225 flow [2022-01-19 01:24:48,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 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 01:24:48,538 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:48,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:48,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 01:24:48,539 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:48,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:48,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1434264761, now seen corresponding path program 29 times [2022-01-19 01:24:48,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:48,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952373311] [2022-01-19 01:24:48,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:48,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:24:48,664 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 01:24:48,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:24:48,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952373311] [2022-01-19 01:24:48,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952373311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:24:48,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:24:48,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-19 01:24:48,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655471090] [2022-01-19 01:24:48,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:24:48,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-19 01:24:48,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:24:48,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-19 01:24:48,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-19 01:24:48,667 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:24:48,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 1125 transitions, 37225 flow. Second operand has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 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 01:24:48,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:24:48,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:24:48,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:53,645 INFO L129 PetriNetUnfolder]: 5682/16228 cut-off events. [2022-01-19 01:24:53,645 INFO L130 PetriNetUnfolder]: For 605615/609008 co-relation queries the response was YES. [2022-01-19 01:24:53,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139606 conditions, 16228 events. 5682/16228 cut-off events. For 605615/609008 co-relation queries the response was YES. Maximal size of possible extension queue 1011. Compared 191741 event pairs, 814 based on Foata normal form. 1152/16741 useless extension candidates. Maximal degree in co-relation 68633. Up to 3014 conditions per place. [2022-01-19 01:24:53,860 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 141 selfloop transitions, 979 changer transitions 62/1292 dead transitions. [2022-01-19 01:24:53,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 1292 transitions, 42275 flow [2022-01-19 01:24:53,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 01:24:53,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 01:24:53,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2538 transitions. [2022-01-19 01:24:53,862 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8095693779904306 [2022-01-19 01:24:53,862 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2538 transitions. [2022-01-19 01:24:53,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2538 transitions. [2022-01-19 01:24:53,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:53,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2538 transitions. [2022-01-19 01:24:53,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 133.57894736842104) internal successors, (2538), 19 states have internal predecessors, (2538), 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 01:24:53,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 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 01:24:53,869 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 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 01:24:53,869 INFO L186 Difference]: Start difference. First operand has 334 places, 1125 transitions, 37225 flow. Second operand 19 states and 2538 transitions. [2022-01-19 01:24:53,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 1292 transitions, 42275 flow [2022-01-19 01:24:55,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 1292 transitions, 42114 flow, removed 20 selfloop flow, removed 6 redundant places. [2022-01-19 01:24:55,462 INFO L242 Difference]: Finished difference. Result has 348 places, 1119 transitions, 38611 flow [2022-01-19 01:24:55,463 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=37083, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=937, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=38611, PETRI_PLACES=348, PETRI_TRANSITIONS=1119} [2022-01-19 01:24:55,463 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 189 predicate places. [2022-01-19 01:24:55,464 INFO L470 AbstractCegarLoop]: Abstraction has has 348 places, 1119 transitions, 38611 flow [2022-01-19 01:24:55,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 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 01:24:55,464 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:55,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:55,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 01:24:55,464 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:55,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:55,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1176036927, now seen corresponding path program 30 times [2022-01-19 01:24:55,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:55,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678642825] [2022-01-19 01:24:55,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:55,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:24:55,567 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 01:24:55,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:24:55,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678642825] [2022-01-19 01:24:55,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678642825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:24:55,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:24:55,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 01:24:55,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551371450] [2022-01-19 01:24:55,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:24:55,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 01:24:55,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:24:55,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 01:24:55,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-19 01:24:55,569 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:24:55,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 1119 transitions, 38611 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 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 01:24:55,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:24:55,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:24:55,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:57,521 INFO L129 PetriNetUnfolder]: 1438/5154 cut-off events. [2022-01-19 01:24:57,521 INFO L130 PetriNetUnfolder]: For 194662/196008 co-relation queries the response was YES. [2022-01-19 01:24:57,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49310 conditions, 5154 events. 1438/5154 cut-off events. For 194662/196008 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 53079 event pairs, 184 based on Foata normal form. 1091/6102 useless extension candidates. Maximal degree in co-relation 26704. Up to 1013 conditions per place. [2022-01-19 01:24:57,579 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 139 selfloop transitions, 318 changer transitions 201/768 dead transitions. [2022-01-19 01:24:57,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 768 transitions, 24727 flow [2022-01-19 01:24:57,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 01:24:57,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 01:24:57,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1343 transitions. [2022-01-19 01:24:57,581 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.813939393939394 [2022-01-19 01:24:57,581 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1343 transitions. [2022-01-19 01:24:57,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1343 transitions. [2022-01-19 01:24:57,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:57,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1343 transitions. [2022-01-19 01:24:57,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 134.3) internal successors, (1343), 10 states have internal predecessors, (1343), 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 01:24:57,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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 01:24:57,584 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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 01:24:57,584 INFO L186 Difference]: Start difference. First operand has 348 places, 1119 transitions, 38611 flow. Second operand 10 states and 1343 transitions. [2022-01-19 01:24:57,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 768 transitions, 24727 flow [2022-01-19 01:24:57,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 768 transitions, 24647 flow, removed 7 selfloop flow, removed 5 redundant places. [2022-01-19 01:24:57,959 INFO L242 Difference]: Finished difference. Result has 354 places, 528 transitions, 15048 flow [2022-01-19 01:24:57,960 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=22145, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=704, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=306, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15048, PETRI_PLACES=354, PETRI_TRANSITIONS=528} [2022-01-19 01:24:57,961 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 195 predicate places. [2022-01-19 01:24:57,961 INFO L470 AbstractCegarLoop]: Abstraction has has 354 places, 528 transitions, 15048 flow [2022-01-19 01:24:57,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 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 01:24:57,961 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:57,961 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:57,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 01:24:57,962 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:57,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:57,962 INFO L85 PathProgramCache]: Analyzing trace with hash -603983289, now seen corresponding path program 31 times [2022-01-19 01:24:57,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:57,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152506761] [2022-01-19 01:24:57,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:57,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:24:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:24:58,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:24:58,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152506761] [2022-01-19 01:24:58,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152506761] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:24:58,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:24:58,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 01:24:58,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991628148] [2022-01-19 01:24:58,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:24:58,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 01:24:58,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:24:58,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 01:24:58,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-19 01:24:58,068 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:24:58,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 528 transitions, 15048 flow. Second operand has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 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 01:24:58,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:24:58,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:24:58,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:58,754 INFO L129 PetriNetUnfolder]: 597/2459 cut-off events. [2022-01-19 01:24:58,755 INFO L130 PetriNetUnfolder]: For 86856/87018 co-relation queries the response was YES. [2022-01-19 01:24:58,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21661 conditions, 2459 events. 597/2459 cut-off events. For 86856/87018 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 21639 event pairs, 87 based on Foata normal form. 199/2599 useless extension candidates. Maximal degree in co-relation 13741. Up to 389 conditions per place. [2022-01-19 01:24:58,779 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 92 selfloop transitions, 206 changer transitions 97/505 dead transitions. [2022-01-19 01:24:58,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 505 transitions, 14304 flow [2022-01-19 01:24:58,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 01:24:58,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 01:24:58,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1463 transitions. [2022-01-19 01:24:58,780 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.806060606060606 [2022-01-19 01:24:58,781 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1463 transitions. [2022-01-19 01:24:58,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1463 transitions. [2022-01-19 01:24:58,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:58,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1463 transitions. [2022-01-19 01:24:58,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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 01:24:58,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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 01:24:58,784 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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 01:24:58,784 INFO L186 Difference]: Start difference. First operand has 354 places, 528 transitions, 15048 flow. Second operand 11 states and 1463 transitions. [2022-01-19 01:24:58,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 505 transitions, 14304 flow [2022-01-19 01:24:58,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 505 transitions, 13174 flow, removed 54 selfloop flow, removed 20 redundant places. [2022-01-19 01:24:58,969 INFO L242 Difference]: Finished difference. Result has 345 places, 369 transitions, 8565 flow [2022-01-19 01:24:58,969 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=11894, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8565, PETRI_PLACES=345, PETRI_TRANSITIONS=369} [2022-01-19 01:24:58,969 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 186 predicate places. [2022-01-19 01:24:58,970 INFO L470 AbstractCegarLoop]: Abstraction has has 345 places, 369 transitions, 8565 flow [2022-01-19 01:24:58,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 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 01:24:58,970 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:58,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:58,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-19 01:24:58,970 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:58,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:58,970 INFO L85 PathProgramCache]: Analyzing trace with hash 297615239, now seen corresponding path program 32 times [2022-01-19 01:24:58,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:58,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418830253] [2022-01-19 01:24:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:58,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:24:59,077 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 01:24:59,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:24:59,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418830253] [2022-01-19 01:24:59,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418830253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:24:59,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:24:59,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 01:24:59,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274966915] [2022-01-19 01:24:59,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:24:59,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 01:24:59,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:24:59,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 01:24:59,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-19 01:24:59,079 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:24:59,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 369 transitions, 8565 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:24:59,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:24:59,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:24:59,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:59,463 INFO L129 PetriNetUnfolder]: 236/1180 cut-off events. [2022-01-19 01:24:59,463 INFO L130 PetriNetUnfolder]: For 47014/47083 co-relation queries the response was YES. [2022-01-19 01:24:59,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10926 conditions, 1180 events. 236/1180 cut-off events. For 47014/47083 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 8996 event pairs, 14 based on Foata normal form. 82/1245 useless extension candidates. Maximal degree in co-relation 9878. Up to 213 conditions per place. [2022-01-19 01:24:59,472 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 63 selfloop transitions, 69 changer transitions 107/346 dead transitions. [2022-01-19 01:24:59,472 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 346 transitions, 8307 flow [2022-01-19 01:24:59,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 01:24:59,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 01:24:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1695 transitions. [2022-01-19 01:24:59,474 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7902097902097902 [2022-01-19 01:24:59,474 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1695 transitions. [2022-01-19 01:24:59,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1695 transitions. [2022-01-19 01:24:59,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:59,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1695 transitions. [2022-01-19 01:24:59,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 130.3846153846154) internal successors, (1695), 13 states have internal predecessors, (1695), 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 01:24:59,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 165.0) internal successors, (2310), 14 states have internal predecessors, (2310), 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 01:24:59,477 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 165.0) internal successors, (2310), 14 states have internal predecessors, (2310), 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 01:24:59,477 INFO L186 Difference]: Start difference. First operand has 345 places, 369 transitions, 8565 flow. Second operand 13 states and 1695 transitions. [2022-01-19 01:24:59,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 346 transitions, 8307 flow [2022-01-19 01:24:59,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 346 transitions, 7214 flow, removed 41 selfloop flow, removed 30 redundant places. [2022-01-19 01:24:59,568 INFO L242 Difference]: Finished difference. Result has 326 places, 211 transitions, 2810 flow [2022-01-19 01:24:59,568 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=6296, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2810, PETRI_PLACES=326, PETRI_TRANSITIONS=211} [2022-01-19 01:24:59,569 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 167 predicate places. [2022-01-19 01:24:59,569 INFO L470 AbstractCegarLoop]: Abstraction has has 326 places, 211 transitions, 2810 flow [2022-01-19 01:24:59,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:24:59,569 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:59,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:59,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-19 01:24:59,569 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:59,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:59,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1031786507, now seen corresponding path program 33 times [2022-01-19 01:24:59,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:59,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406607197] [2022-01-19 01:24:59,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:59,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:24:59,676 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 01:24:59,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:24:59,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406607197] [2022-01-19 01:24:59,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406607197] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:24:59,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:24:59,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 01:24:59,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059866067] [2022-01-19 01:24:59,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:24:59,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 01:24:59,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:24:59,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 01:24:59,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-19 01:24:59,678 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 01:24:59,679 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 211 transitions, 2810 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:24:59,679 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:24:59,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 01:24:59,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:24:59,889 INFO L129 PetriNetUnfolder]: 73/480 cut-off events. [2022-01-19 01:24:59,889 INFO L130 PetriNetUnfolder]: For 13265/13286 co-relation queries the response was YES. [2022-01-19 01:24:59,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3230 conditions, 480 events. 73/480 cut-off events. For 13265/13286 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1966 event pairs, 5 based on Foata normal form. 25/499 useless extension candidates. Maximal degree in co-relation 3073. Up to 54 conditions per place. [2022-01-19 01:24:59,892 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 58 selfloop transitions, 61 changer transitions 19/245 dead transitions. [2022-01-19 01:24:59,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 245 transitions, 3410 flow [2022-01-19 01:24:59,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 01:24:59,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 01:24:59,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1676 transitions. [2022-01-19 01:24:59,894 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7813519813519814 [2022-01-19 01:24:59,894 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1676 transitions. [2022-01-19 01:24:59,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1676 transitions. [2022-01-19 01:24:59,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:24:59,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1676 transitions. [2022-01-19 01:24:59,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 128.92307692307693) internal successors, (1676), 13 states have internal predecessors, (1676), 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 01:24:59,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 165.0) internal successors, (2310), 14 states have internal predecessors, (2310), 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 01:24:59,897 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 165.0) internal successors, (2310), 14 states have internal predecessors, (2310), 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 01:24:59,897 INFO L186 Difference]: Start difference. First operand has 326 places, 211 transitions, 2810 flow. Second operand 13 states and 1676 transitions. [2022-01-19 01:24:59,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 245 transitions, 3410 flow [2022-01-19 01:24:59,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 245 transitions, 2026 flow, removed 81 selfloop flow, removed 79 redundant places. [2022-01-19 01:24:59,918 INFO L242 Difference]: Finished difference. Result has 238 places, 195 transitions, 1439 flow [2022-01-19 01:24:59,918 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1506, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1439, PETRI_PLACES=238, PETRI_TRANSITIONS=195} [2022-01-19 01:24:59,919 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 79 predicate places. [2022-01-19 01:24:59,919 INFO L470 AbstractCegarLoop]: Abstraction has has 238 places, 195 transitions, 1439 flow [2022-01-19 01:24:59,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 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 01:24:59,919 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:24:59,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:59,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-19 01:24:59,920 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 01:24:59,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:24:59,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2026899825, now seen corresponding path program 34 times [2022-01-19 01:24:59,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:24:59,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076885700] [2022-01-19 01:24:59,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:24:59,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:24:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:25:00,077 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 01:25:00,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:25:00,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076885700] [2022-01-19 01:25:00,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076885700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:25:00,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:25:00,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-19 01:25:00,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742546058] [2022-01-19 01:25:00,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:25:00,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-19 01:25:00,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:25:00,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-19 01:25:00,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-01-19 01:25:00,080 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 01:25:00,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 195 transitions, 1439 flow. Second operand has 13 states, 13 states have (on average 114.76923076923077) internal successors, (1492), 13 states have internal predecessors, (1492), 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 01:25:00,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:25:00,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 01:25:00,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:25:00,380 INFO L129 PetriNetUnfolder]: 89/410 cut-off events. [2022-01-19 01:25:00,380 INFO L130 PetriNetUnfolder]: For 3240/3240 co-relation queries the response was YES. [2022-01-19 01:25:00,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2011 conditions, 410 events. 89/410 cut-off events. For 3240/3240 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1818 event pairs, 0 based on Foata normal form. 6/404 useless extension candidates. Maximal degree in co-relation 1983. Up to 57 conditions per place. [2022-01-19 01:25:00,382 INFO L132 encePairwiseOnDemand]: 153/165 looper letters, 0 selfloop transitions, 0 changer transitions 211/211 dead transitions. [2022-01-19 01:25:00,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 211 transitions, 1919 flow [2022-01-19 01:25:00,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 01:25:00,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 01:25:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1888 transitions. [2022-01-19 01:25:00,384 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7151515151515152 [2022-01-19 01:25:00,384 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1888 transitions. [2022-01-19 01:25:00,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1888 transitions. [2022-01-19 01:25:00,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:25:00,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1888 transitions. [2022-01-19 01:25:00,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 118.0) internal successors, (1888), 16 states have internal predecessors, (1888), 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 01:25:00,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 165.0) internal successors, (2805), 17 states have internal predecessors, (2805), 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 01:25:00,388 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 165.0) internal successors, (2805), 17 states have internal predecessors, (2805), 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 01:25:00,388 INFO L186 Difference]: Start difference. First operand has 238 places, 195 transitions, 1439 flow. Second operand 16 states and 1888 transitions. [2022-01-19 01:25:00,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 211 transitions, 1919 flow [2022-01-19 01:25:00,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 211 transitions, 1609 flow, removed 1 selfloop flow, removed 27 redundant places. [2022-01-19 01:25:00,397 INFO L242 Difference]: Finished difference. Result has 193 places, 0 transitions, 0 flow [2022-01-19 01:25:00,397 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1014, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=193, PETRI_TRANSITIONS=0} [2022-01-19 01:25:00,397 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 34 predicate places. [2022-01-19 01:25:00,397 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 0 transitions, 0 flow [2022-01-19 01:25:00,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 114.76923076923077) internal successors, (1492), 13 states have internal predecessors, (1492), 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 01:25:00,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-19 01:25:00,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 6 remaining) [2022-01-19 01:25:00,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 6 remaining) [2022-01-19 01:25:00,401 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 6 remaining) [2022-01-19 01:25:00,401 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 6 remaining) [2022-01-19 01:25:00,401 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION (0 of 6 remaining) [2022-01-19 01:25:00,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-19 01:25:00,405 INFO L732 BasicCegarLoop]: Path program histogram: [34] [2022-01-19 01:25:00,406 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 01:25:00,406 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 01:25:00,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 01:25:00 BasicIcfg [2022-01-19 01:25:00,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 01:25:00,409 INFO L158 Benchmark]: Toolchain (without parser) took 197516.97ms. Allocated memory was 360.7MB in the beginning and 15.8GB in the end (delta: 15.4GB). Free memory was 306.9MB in the beginning and 11.2GB in the end (delta: -10.9GB). Peak memory consumption was 4.5GB. Max. memory is 16.0GB. [2022-01-19 01:25:00,409 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 360.7MB. Free memory is still 323.7MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 01:25:00,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.28ms. Allocated memory was 360.7MB in the beginning and 457.2MB in the end (delta: 96.5MB). Free memory was 306.6MB in the beginning and 430.2MB in the end (delta: -123.5MB). Peak memory consumption was 10.3MB. Max. memory is 16.0GB. [2022-01-19 01:25:00,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.83ms. Allocated memory is still 457.2MB. Free memory was 430.2MB in the beginning and 428.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 01:25:00,409 INFO L158 Benchmark]: Boogie Preprocessor took 28.75ms. Allocated memory is still 457.2MB. Free memory was 428.1MB in the beginning and 426.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 01:25:00,410 INFO L158 Benchmark]: RCFGBuilder took 522.61ms. Allocated memory is still 457.2MB. Free memory was 426.0MB in the beginning and 402.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2022-01-19 01:25:00,410 INFO L158 Benchmark]: TraceAbstraction took 196668.08ms. Allocated memory was 457.2MB in the beginning and 15.8GB in the end (delta: 15.3GB). Free memory was 402.9MB in the beginning and 11.2GB in the end (delta: -10.8GB). Peak memory consumption was 4.5GB. Max. memory is 16.0GB. [2022-01-19 01:25:00,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 360.7MB. Free memory is still 323.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 247.28ms. Allocated memory was 360.7MB in the beginning and 457.2MB in the end (delta: 96.5MB). Free memory was 306.6MB in the beginning and 430.2MB in the end (delta: -123.5MB). Peak memory consumption was 10.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.83ms. Allocated memory is still 457.2MB. Free memory was 430.2MB in the beginning and 428.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.75ms. Allocated memory is still 457.2MB. Free memory was 428.1MB in the beginning and 426.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 522.61ms. Allocated memory is still 457.2MB. Free memory was 426.0MB in the beginning and 402.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 196668.08ms. Allocated memory was 457.2MB in the beginning and 15.8GB in the end (delta: 15.3GB). Free memory was 402.9MB in the beginning and 11.2GB in the end (delta: -10.8GB). Peak memory consumption was 4.5GB. 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: 168]: 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 11 procedures, 205 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 196.5s, OverallIterations: 34, TraceHistogramMax: 1, PathProgramHistogramMax: 34, EmptinessCheckTime: 0.0s, AutomataDifference: 190.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3420 SdHoareTripleChecker+Valid, 8.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3420 mSDsluCounter, 2093 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4292 mSDsCounter, 1925 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13416 IncrementalHoareTripleChecker+Invalid, 15341 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1925 mSolverCounterUnsat, 628 mSDtfsCounter, 13416 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 567 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 435 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38611occurred in iteration=29, InterpolantAutomatonStates: 397, 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: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 4794 NumberOfCodeBlocks, 4794 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 4760 ConstructedInterpolants, 0 QuantifiedInterpolants, 13460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 34 InterpolantComputations, 34 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 01:25:00,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...