/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-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 07:19:34,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 07:19:34,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 07:19:34,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 07:19:34,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 07:19:34,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 07:19:34,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 07:19:34,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 07:19:34,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 07:19:34,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 07:19:34,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 07:19:34,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 07:19:34,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 07:19:34,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 07:19:34,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 07:19:34,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 07:19:34,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 07:19:34,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 07:19:34,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 07:19:34,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 07:19:34,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 07:19:34,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 07:19:34,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 07:19:34,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 07:19:34,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 07:19:34,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 07:19:34,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 07:19:34,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 07:19:34,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 07:19:34,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 07:19:34,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 07:19:34,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 07:19:34,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 07:19:34,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 07:19:34,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 07:19:34,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 07:19:34,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 07:19:34,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 07:19:34,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 07:19:34,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 07:19:34,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 07:19:34,129 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-Before.epf [2022-01-19 07:19:34,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 07:19:34,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 07:19:34,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 07:19:34,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 07:19:34,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 07:19:34,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 07:19:34,158 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 07:19:34,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 07:19:34,158 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 07:19:34,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 07:19:34,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 07:19:34,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 07:19:34,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 07:19:34,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 07:19:34,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 07:19:34,160 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 07:19:34,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 07:19:34,160 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 07:19:34,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 07:19:34,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 07:19:34,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 07:19:34,160 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 07:19:34,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 07:19:34,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:19:34,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 07:19:34,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 07:19:34,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 07:19:34,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 07:19:34,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 07:19:34,162 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 07:19:34,162 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 07:19:34,162 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 07:19:34,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 07:19:34,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 07:19:34,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 07:19:34,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 07:19:34,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 07:19:34,403 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 07:19:34,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2022-01-19 07:19:34,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1ad1b37/b1b983acf66c40b5a0ea454ca9f5f6fc/FLAG14a8fc36d [2022-01-19 07:19:34,814 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 07:19:34,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2022-01-19 07:19:34,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1ad1b37/b1b983acf66c40b5a0ea454ca9f5f6fc/FLAG14a8fc36d [2022-01-19 07:19:34,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1ad1b37/b1b983acf66c40b5a0ea454ca9f5f6fc [2022-01-19 07:19:34,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 07:19:34,832 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 07:19:34,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 07:19:34,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 07:19:34,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 07:19:34,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:19:34" (1/1) ... [2022-01-19 07:19:34,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c417048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:34, skipping insertion in model container [2022-01-19 07:19:34,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:19:34" (1/1) ... [2022-01-19 07:19:34,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 07:19:34,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 07:19:35,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c[2272,2285] [2022-01-19 07:19:35,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:19:35,088 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 07:19:35,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c[2272,2285] [2022-01-19 07:19:35,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:19:35,137 INFO L208 MainTranslator]: Completed translation [2022-01-19 07:19:35,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35 WrapperNode [2022-01-19 07:19:35,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 07:19:35,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 07:19:35,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 07:19:35,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 07:19:35,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35" (1/1) ... [2022-01-19 07:19:35,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35" (1/1) ... [2022-01-19 07:19:35,176 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-01-19 07:19:35,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 07:19:35,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 07:19:35,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 07:19:35,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 07:19:35,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35" (1/1) ... [2022-01-19 07:19:35,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35" (1/1) ... [2022-01-19 07:19:35,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35" (1/1) ... [2022-01-19 07:19:35,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35" (1/1) ... [2022-01-19 07:19:35,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35" (1/1) ... [2022-01-19 07:19:35,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35" (1/1) ... [2022-01-19 07:19:35,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35" (1/1) ... [2022-01-19 07:19:35,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 07:19:35,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 07:19:35,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 07:19:35,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 07:19:35,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35" (1/1) ... [2022-01-19 07:19:35,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:19:35,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:19:35,232 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 07:19:35,262 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 07:19:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 07:19:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 07:19:35,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 07:19:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 07:19:35,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 07:19:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 07:19:35,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 07:19:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 07:19:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 07:19:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 07:19:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 07:19:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 07:19:35,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 07:19:35,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 07:19:35,279 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 07:19:35,337 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 07:19:35,338 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 07:19:35,493 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 07:19:35,503 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 07:19:35,503 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 07:19:35,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:19:35 BoogieIcfgContainer [2022-01-19 07:19:35,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 07:19:35,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 07:19:35,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 07:19:35,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 07:19:35,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 07:19:34" (1/3) ... [2022-01-19 07:19:35,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683c44ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:19:35, skipping insertion in model container [2022-01-19 07:19:35,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:19:35" (2/3) ... [2022-01-19 07:19:35,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683c44ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:19:35, skipping insertion in model container [2022-01-19 07:19:35,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:19:35" (3/3) ... [2022-01-19 07:19:35,511 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-sre-trans.wvr.c [2022-01-19 07:19:35,515 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 07:19:35,515 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 07:19:35,515 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 07:19:35,584 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,584 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,602 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,602 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,610 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,611 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,611 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,611 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,624 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,624 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,624 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,625 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:19:35,634 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 07:19:35,670 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 07:19:35,675 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 07:19:35,676 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 07:19:35,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 116 transitions, 256 flow [2022-01-19 07:19:35,734 INFO L129 PetriNetUnfolder]: 7/113 cut-off events. [2022-01-19 07:19:35,734 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 07:19:35,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 7/113 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 114 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2022-01-19 07:19:35,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 116 transitions, 256 flow [2022-01-19 07:19:35,747 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 102 transitions, 222 flow [2022-01-19 07:19:35,792 INFO L129 PetriNetUnfolder]: 7/101 cut-off events. [2022-01-19 07:19:35,793 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 07:19:35,793 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:19:35,794 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:19:35,794 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:19:35,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:19:35,798 INFO L85 PathProgramCache]: Analyzing trace with hash -64104107, now seen corresponding path program 1 times [2022-01-19 07:19:35,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:19:35,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800609257] [2022-01-19 07:19:35,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:19:35,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:19:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:19:36,264 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 07:19:36,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:19:36,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800609257] [2022-01-19 07:19:36,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800609257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:19:36,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:19:36,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 07:19:36,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697765071] [2022-01-19 07:19:36,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:19:36,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 07:19:36,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:19:36,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 07:19:36,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 07:19:36,314 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 116 [2022-01-19 07:19:36,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 102 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 100.33333333333333) internal successors, (602), 6 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:36,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:19:36,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 116 [2022-01-19 07:19:36,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:19:36,459 INFO L129 PetriNetUnfolder]: 23/199 cut-off events. [2022-01-19 07:19:36,459 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-01-19 07:19:36,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 199 events. 23/199 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 641 event pairs, 6 based on Foata normal form. 2/184 useless extension candidates. Maximal degree in co-relation 192. Up to 17 conditions per place. [2022-01-19 07:19:36,466 INFO L132 encePairwiseOnDemand]: 107/116 looper letters, 18 selfloop transitions, 4 changer transitions 6/113 dead transitions. [2022-01-19 07:19:36,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 113 transitions, 318 flow [2022-01-19 07:19:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 07:19:36,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 07:19:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 717 transitions. [2022-01-19 07:19:36,484 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8830049261083743 [2022-01-19 07:19:36,485 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 717 transitions. [2022-01-19 07:19:36,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 717 transitions. [2022-01-19 07:19:36,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:19:36,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 717 transitions. [2022-01-19 07:19:36,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 102.42857142857143) internal successors, (717), 7 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:36,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:36,517 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:36,519 INFO L186 Difference]: Start difference. First operand has 105 places, 102 transitions, 222 flow. Second operand 7 states and 717 transitions. [2022-01-19 07:19:36,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 113 transitions, 318 flow [2022-01-19 07:19:36,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 113 transitions, 294 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 07:19:36,534 INFO L242 Difference]: Finished difference. Result has 109 places, 102 transitions, 234 flow [2022-01-19 07:19:36,536 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=234, PETRI_PLACES=109, PETRI_TRANSITIONS=102} [2022-01-19 07:19:36,539 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 4 predicate places. [2022-01-19 07:19:36,539 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 102 transitions, 234 flow [2022-01-19 07:19:36,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.33333333333333) internal successors, (602), 6 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:36,540 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:19:36,540 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:19:36,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 07:19:36,541 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:19:36,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:19:36,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1386170374, now seen corresponding path program 1 times [2022-01-19 07:19:36,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:19:36,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703812291] [2022-01-19 07:19:36,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:19:36,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:19:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:19:36,697 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 07:19:36,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:19:36,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703812291] [2022-01-19 07:19:36,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703812291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:19:36,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:19:36,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:19:36,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327605891] [2022-01-19 07:19:36,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:19:36,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:19:36,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:19:36,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:19:36,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:19:36,703 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 116 [2022-01-19 07:19:36,704 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 102 transitions, 234 flow. Second operand has 7 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:36,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:19:36,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 116 [2022-01-19 07:19:36,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:19:36,858 INFO L129 PetriNetUnfolder]: 110/523 cut-off events. [2022-01-19 07:19:36,858 INFO L130 PetriNetUnfolder]: For 76/115 co-relation queries the response was YES. [2022-01-19 07:19:36,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 523 events. 110/523 cut-off events. For 76/115 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2929 event pairs, 65 based on Foata normal form. 4/494 useless extension candidates. Maximal degree in co-relation 886. Up to 84 conditions per place. [2022-01-19 07:19:36,863 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 30 selfloop transitions, 4 changer transitions 4/120 dead transitions. [2022-01-19 07:19:36,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 120 transitions, 367 flow [2022-01-19 07:19:36,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 07:19:36,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 07:19:36,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 600 transitions. [2022-01-19 07:19:36,866 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8620689655172413 [2022-01-19 07:19:36,866 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 600 transitions. [2022-01-19 07:19:36,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 600 transitions. [2022-01-19 07:19:36,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:19:36,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 600 transitions. [2022-01-19 07:19:36,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:36,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:36,870 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:36,870 INFO L186 Difference]: Start difference. First operand has 109 places, 102 transitions, 234 flow. Second operand 6 states and 600 transitions. [2022-01-19 07:19:36,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 120 transitions, 367 flow [2022-01-19 07:19:36,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 120 transitions, 357 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-01-19 07:19:36,875 INFO L242 Difference]: Finished difference. Result has 111 places, 104 transitions, 256 flow [2022-01-19 07:19:36,875 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=256, PETRI_PLACES=111, PETRI_TRANSITIONS=104} [2022-01-19 07:19:36,876 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 6 predicate places. [2022-01-19 07:19:36,876 INFO L470 AbstractCegarLoop]: Abstraction has has 111 places, 104 transitions, 256 flow [2022-01-19 07:19:36,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:36,877 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:19:36,877 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:19:36,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 07:19:36,877 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:19:36,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:19:36,878 INFO L85 PathProgramCache]: Analyzing trace with hash 492186299, now seen corresponding path program 1 times [2022-01-19 07:19:36,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:19:36,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401502863] [2022-01-19 07:19:36,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:19:36,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:19:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:19:37,121 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 07:19:37,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:19:37,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401502863] [2022-01-19 07:19:37,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401502863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:19:37,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:19:37,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 07:19:37,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537329347] [2022-01-19 07:19:37,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:19:37,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 07:19:37,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:19:37,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 07:19:37,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-19 07:19:37,128 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 116 [2022-01-19 07:19:37,129 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 104 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:37,130 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:19:37,130 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 116 [2022-01-19 07:19:37,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:19:37,411 INFO L129 PetriNetUnfolder]: 454/1744 cut-off events. [2022-01-19 07:19:37,411 INFO L130 PetriNetUnfolder]: For 165/165 co-relation queries the response was YES. [2022-01-19 07:19:37,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 1744 events. 454/1744 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 13830 event pairs, 236 based on Foata normal form. 0/1409 useless extension candidates. Maximal degree in co-relation 2709. Up to 247 conditions per place. [2022-01-19 07:19:37,425 INFO L132 encePairwiseOnDemand]: 106/116 looper letters, 48 selfloop transitions, 6 changer transitions 7/138 dead transitions. [2022-01-19 07:19:37,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 138 transitions, 454 flow [2022-01-19 07:19:37,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 07:19:37,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 07:19:37,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 512 transitions. [2022-01-19 07:19:37,432 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8827586206896552 [2022-01-19 07:19:37,432 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 512 transitions. [2022-01-19 07:19:37,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 512 transitions. [2022-01-19 07:19:37,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:19:37,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 512 transitions. [2022-01-19 07:19:37,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:37,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:37,435 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:37,435 INFO L186 Difference]: Start difference. First operand has 111 places, 104 transitions, 256 flow. Second operand 5 states and 512 transitions. [2022-01-19 07:19:37,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 138 transitions, 454 flow [2022-01-19 07:19:37,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 138 transitions, 448 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-01-19 07:19:37,445 INFO L242 Difference]: Finished difference. Result has 112 places, 105 transitions, 279 flow [2022-01-19 07:19:37,445 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=279, PETRI_PLACES=112, PETRI_TRANSITIONS=105} [2022-01-19 07:19:37,447 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 7 predicate places. [2022-01-19 07:19:37,447 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 105 transitions, 279 flow [2022-01-19 07:19:37,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:37,448 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:19:37,448 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:19:37,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 07:19:37,448 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:19:37,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:19:37,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1485931439, now seen corresponding path program 2 times [2022-01-19 07:19:37,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:19:37,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275437899] [2022-01-19 07:19:37,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:19:37,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:19:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:19:37,534 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 07:19:37,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:19:37,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275437899] [2022-01-19 07:19:37,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275437899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:19:37,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:19:37,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 07:19:37,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287643011] [2022-01-19 07:19:37,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:19:37,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 07:19:37,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:19:37,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 07:19:37,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-19 07:19:37,541 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 116 [2022-01-19 07:19:37,542 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 105 transitions, 279 flow. Second operand has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:37,542 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:19:37,542 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 116 [2022-01-19 07:19:37,542 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:19:37,844 INFO L129 PetriNetUnfolder]: 345/2031 cut-off events. [2022-01-19 07:19:37,844 INFO L130 PetriNetUnfolder]: For 483/483 co-relation queries the response was YES. [2022-01-19 07:19:37,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3461 conditions, 2031 events. 345/2031 cut-off events. For 483/483 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 19052 event pairs, 69 based on Foata normal form. 33/2000 useless extension candidates. Maximal degree in co-relation 2603. Up to 202 conditions per place. [2022-01-19 07:19:37,855 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 51 selfloop transitions, 11 changer transitions 12/150 dead transitions. [2022-01-19 07:19:37,856 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 150 transitions, 583 flow [2022-01-19 07:19:37,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 07:19:37,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 07:19:37,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 529 transitions. [2022-01-19 07:19:37,857 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9120689655172414 [2022-01-19 07:19:37,857 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 529 transitions. [2022-01-19 07:19:37,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 529 transitions. [2022-01-19 07:19:37,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:19:37,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 529 transitions. [2022-01-19 07:19:37,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:37,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:37,861 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:37,861 INFO L186 Difference]: Start difference. First operand has 112 places, 105 transitions, 279 flow. Second operand 5 states and 529 transitions. [2022-01-19 07:19:37,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 150 transitions, 583 flow [2022-01-19 07:19:37,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 150 transitions, 565 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-01-19 07:19:37,870 INFO L242 Difference]: Finished difference. Result has 114 places, 111 transitions, 356 flow [2022-01-19 07:19:37,870 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=356, PETRI_PLACES=114, PETRI_TRANSITIONS=111} [2022-01-19 07:19:37,871 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 9 predicate places. [2022-01-19 07:19:37,871 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 111 transitions, 356 flow [2022-01-19 07:19:37,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:37,872 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:19:37,872 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:19:37,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 07:19:37,872 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:19:37,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:19:37,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1029683477, now seen corresponding path program 1 times [2022-01-19 07:19:37,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:19:37,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863657969] [2022-01-19 07:19:37,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:19:37,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:19:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:19:37,996 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 07:19:37,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:19:37,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863657969] [2022-01-19 07:19:37,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863657969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:19:37,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:19:37,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:19:37,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278894142] [2022-01-19 07:19:37,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:19:37,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:19:37,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:19:37,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:19:37,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:19:37,999 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 116 [2022-01-19 07:19:38,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 111 transitions, 356 flow. Second operand has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:19:38,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 116 [2022-01-19 07:19:38,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:19:38,189 INFO L129 PetriNetUnfolder]: 154/991 cut-off events. [2022-01-19 07:19:38,189 INFO L130 PetriNetUnfolder]: For 345/451 co-relation queries the response was YES. [2022-01-19 07:19:38,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1784 conditions, 991 events. 154/991 cut-off events. For 345/451 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8557 event pairs, 83 based on Foata normal form. 20/962 useless extension candidates. Maximal degree in co-relation 1273. Up to 232 conditions per place. [2022-01-19 07:19:38,197 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 22 selfloop transitions, 5 changer transitions 9/130 dead transitions. [2022-01-19 07:19:38,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 130 transitions, 484 flow [2022-01-19 07:19:38,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 07:19:38,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 07:19:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 892 transitions. [2022-01-19 07:19:38,199 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8544061302681992 [2022-01-19 07:19:38,199 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 892 transitions. [2022-01-19 07:19:38,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 892 transitions. [2022-01-19 07:19:38,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:19:38,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 892 transitions. [2022-01-19 07:19:38,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.11111111111111) internal successors, (892), 9 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,205 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,205 INFO L186 Difference]: Start difference. First operand has 114 places, 111 transitions, 356 flow. Second operand 9 states and 892 transitions. [2022-01-19 07:19:38,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 130 transitions, 484 flow [2022-01-19 07:19:38,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 130 transitions, 470 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-01-19 07:19:38,209 INFO L242 Difference]: Finished difference. Result has 125 places, 115 transitions, 389 flow [2022-01-19 07:19:38,210 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=389, PETRI_PLACES=125, PETRI_TRANSITIONS=115} [2022-01-19 07:19:38,210 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 20 predicate places. [2022-01-19 07:19:38,210 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 115 transitions, 389 flow [2022-01-19 07:19:38,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,211 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:19:38,211 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:19:38,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 07:19:38,212 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:19:38,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:19:38,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1197986629, now seen corresponding path program 1 times [2022-01-19 07:19:38,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:19:38,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66199692] [2022-01-19 07:19:38,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:19:38,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:19:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:19:38,271 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 07:19:38,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:19:38,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66199692] [2022-01-19 07:19:38,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66199692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:19:38,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:19:38,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:19:38,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293875397] [2022-01-19 07:19:38,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:19:38,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:19:38,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:19:38,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:19:38,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:19:38,274 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 116 [2022-01-19 07:19:38,275 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 115 transitions, 389 flow. Second operand has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:19:38,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 116 [2022-01-19 07:19:38,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:19:38,427 INFO L129 PetriNetUnfolder]: 90/751 cut-off events. [2022-01-19 07:19:38,427 INFO L130 PetriNetUnfolder]: For 248/335 co-relation queries the response was YES. [2022-01-19 07:19:38,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1412 conditions, 751 events. 90/751 cut-off events. For 248/335 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 6097 event pairs, 42 based on Foata normal form. 6/714 useless extension candidates. Maximal degree in co-relation 1391. Up to 117 conditions per place. [2022-01-19 07:19:38,433 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 28 selfloop transitions, 5 changer transitions 4/135 dead transitions. [2022-01-19 07:19:38,433 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 135 transitions, 520 flow [2022-01-19 07:19:38,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 07:19:38,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 07:19:38,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 893 transitions. [2022-01-19 07:19:38,436 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8553639846743295 [2022-01-19 07:19:38,436 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 893 transitions. [2022-01-19 07:19:38,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 893 transitions. [2022-01-19 07:19:38,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:19:38,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 893 transitions. [2022-01-19 07:19:38,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.22222222222223) internal successors, (893), 9 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,443 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,443 INFO L186 Difference]: Start difference. First operand has 125 places, 115 transitions, 389 flow. Second operand 9 states and 893 transitions. [2022-01-19 07:19:38,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 135 transitions, 520 flow [2022-01-19 07:19:38,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 135 transitions, 513 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-01-19 07:19:38,448 INFO L242 Difference]: Finished difference. Result has 135 places, 119 transitions, 425 flow [2022-01-19 07:19:38,448 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=425, PETRI_PLACES=135, PETRI_TRANSITIONS=119} [2022-01-19 07:19:38,448 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 30 predicate places. [2022-01-19 07:19:38,449 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 119 transitions, 425 flow [2022-01-19 07:19:38,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,449 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:19:38,449 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:19:38,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 07:19:38,450 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:19:38,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:19:38,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1547087313, now seen corresponding path program 3 times [2022-01-19 07:19:38,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:19:38,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066227829] [2022-01-19 07:19:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:19:38,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:19:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:19:38,542 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 07:19:38,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:19:38,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066227829] [2022-01-19 07:19:38,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066227829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:19:38,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:19:38,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 07:19:38,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961013017] [2022-01-19 07:19:38,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:19:38,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 07:19:38,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:19:38,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 07:19:38,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-19 07:19:38,545 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 116 [2022-01-19 07:19:38,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 119 transitions, 425 flow. Second operand has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:19:38,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 116 [2022-01-19 07:19:38,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:19:38,785 INFO L129 PetriNetUnfolder]: 325/1630 cut-off events. [2022-01-19 07:19:38,785 INFO L130 PetriNetUnfolder]: For 1182/1182 co-relation queries the response was YES. [2022-01-19 07:19:38,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3599 conditions, 1630 events. 325/1630 cut-off events. For 1182/1182 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 14316 event pairs, 44 based on Foata normal form. 24/1554 useless extension candidates. Maximal degree in co-relation 3574. Up to 270 conditions per place. [2022-01-19 07:19:38,795 INFO L132 encePairwiseOnDemand]: 105/116 looper letters, 31 selfloop transitions, 5 changer transitions 59/166 dead transitions. [2022-01-19 07:19:38,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 166 transitions, 834 flow [2022-01-19 07:19:38,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 07:19:38,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 07:19:38,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 513 transitions. [2022-01-19 07:19:38,797 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8844827586206897 [2022-01-19 07:19:38,797 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 513 transitions. [2022-01-19 07:19:38,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 513 transitions. [2022-01-19 07:19:38,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:19:38,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 513 transitions. [2022-01-19 07:19:38,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,801 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,801 INFO L186 Difference]: Start difference. First operand has 135 places, 119 transitions, 425 flow. Second operand 5 states and 513 transitions. [2022-01-19 07:19:38,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 166 transitions, 834 flow [2022-01-19 07:19:38,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 166 transitions, 829 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-01-19 07:19:38,808 INFO L242 Difference]: Finished difference. Result has 138 places, 100 transitions, 340 flow [2022-01-19 07:19:38,808 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=340, PETRI_PLACES=138, PETRI_TRANSITIONS=100} [2022-01-19 07:19:38,809 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 33 predicate places. [2022-01-19 07:19:38,809 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 100 transitions, 340 flow [2022-01-19 07:19:38,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,810 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:19:38,810 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] [2022-01-19 07:19:38,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 07:19:38,810 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:19:38,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:19:38,810 INFO L85 PathProgramCache]: Analyzing trace with hash -606803557, now seen corresponding path program 4 times [2022-01-19 07:19:38,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:19:38,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192942083] [2022-01-19 07:19:38,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:19:38,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:19:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:19:38,891 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 07:19:38,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:19:38,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192942083] [2022-01-19 07:19:38,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192942083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:19:38,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:19:38,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 07:19:38,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43769348] [2022-01-19 07:19:38,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:19:38,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 07:19:38,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:19:38,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 07:19:38,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-19 07:19:38,894 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 116 [2022-01-19 07:19:38,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 100 transitions, 340 flow. Second operand has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:38,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:19:38,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 116 [2022-01-19 07:19:38,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:19:39,021 INFO L129 PetriNetUnfolder]: 71/554 cut-off events. [2022-01-19 07:19:39,021 INFO L130 PetriNetUnfolder]: For 848/848 co-relation queries the response was YES. [2022-01-19 07:19:39,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 554 events. 71/554 cut-off events. For 848/848 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3501 event pairs, 18 based on Foata normal form. 18/552 useless extension candidates. Maximal degree in co-relation 1256. Up to 74 conditions per place. [2022-01-19 07:19:39,025 INFO L132 encePairwiseOnDemand]: 107/116 looper letters, 33 selfloop transitions, 5 changer transitions 25/134 dead transitions. [2022-01-19 07:19:39,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 134 transitions, 711 flow [2022-01-19 07:19:39,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 07:19:39,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 07:19:39,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 588 transitions. [2022-01-19 07:19:39,028 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2022-01-19 07:19:39,028 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 588 transitions. [2022-01-19 07:19:39,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 588 transitions. [2022-01-19 07:19:39,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:19:39,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 588 transitions. [2022-01-19 07:19:39,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,032 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,032 INFO L186 Difference]: Start difference. First operand has 138 places, 100 transitions, 340 flow. Second operand 6 states and 588 transitions. [2022-01-19 07:19:39,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 134 transitions, 711 flow [2022-01-19 07:19:39,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 134 transitions, 643 flow, removed 31 selfloop flow, removed 13 redundant places. [2022-01-19 07:19:39,038 INFO L242 Difference]: Finished difference. Result has 117 places, 100 transitions, 338 flow [2022-01-19 07:19:39,038 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=117, PETRI_TRANSITIONS=100} [2022-01-19 07:19:39,041 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 12 predicate places. [2022-01-19 07:19:39,041 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 100 transitions, 338 flow [2022-01-19 07:19:39,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,041 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:19:39,041 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:19:39,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 07:19:39,042 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:19:39,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:19:39,042 INFO L85 PathProgramCache]: Analyzing trace with hash 483450939, now seen corresponding path program 5 times [2022-01-19 07:19:39,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:19:39,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614234051] [2022-01-19 07:19:39,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:19:39,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:19:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:19:39,151 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 07:19:39,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:19:39,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614234051] [2022-01-19 07:19:39,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614234051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:19:39,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:19:39,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 07:19:39,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745328334] [2022-01-19 07:19:39,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:19:39,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 07:19:39,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:19:39,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 07:19:39,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-19 07:19:39,154 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 116 [2022-01-19 07:19:39,155 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 100 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,155 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:19:39,155 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 116 [2022-01-19 07:19:39,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:19:39,272 INFO L129 PetriNetUnfolder]: 39/389 cut-off events. [2022-01-19 07:19:39,272 INFO L130 PetriNetUnfolder]: For 475/475 co-relation queries the response was YES. [2022-01-19 07:19:39,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 389 events. 39/389 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2103 event pairs, 9 based on Foata normal form. 2/377 useless extension candidates. Maximal degree in co-relation 476. Up to 67 conditions per place. [2022-01-19 07:19:39,274 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 30 selfloop transitions, 3 changer transitions 12/115 dead transitions. [2022-01-19 07:19:39,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 115 transitions, 541 flow [2022-01-19 07:19:39,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 07:19:39,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 07:19:39,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 576 transitions. [2022-01-19 07:19:39,276 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8275862068965517 [2022-01-19 07:19:39,276 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 576 transitions. [2022-01-19 07:19:39,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 576 transitions. [2022-01-19 07:19:39,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:19:39,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 576 transitions. [2022-01-19 07:19:39,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.0) internal successors, (576), 6 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,280 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,280 INFO L186 Difference]: Start difference. First operand has 117 places, 100 transitions, 338 flow. Second operand 6 states and 576 transitions. [2022-01-19 07:19:39,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 115 transitions, 541 flow [2022-01-19 07:19:39,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 115 transitions, 519 flow, removed 11 selfloop flow, removed 1 redundant places. [2022-01-19 07:19:39,283 INFO L242 Difference]: Finished difference. Result has 123 places, 97 transitions, 319 flow [2022-01-19 07:19:39,284 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=319, PETRI_PLACES=123, PETRI_TRANSITIONS=97} [2022-01-19 07:19:39,284 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 18 predicate places. [2022-01-19 07:19:39,285 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 97 transitions, 319 flow [2022-01-19 07:19:39,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,285 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:19:39,285 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:19:39,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 07:19:39,285 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:19:39,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:19:39,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1056150492, now seen corresponding path program 1 times [2022-01-19 07:19:39,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:19:39,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752567755] [2022-01-19 07:19:39,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:19:39,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:19:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:19:39,361 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 07:19:39,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:19:39,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752567755] [2022-01-19 07:19:39,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752567755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:19:39,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:19:39,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:19:39,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420920603] [2022-01-19 07:19:39,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:19:39,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:19:39,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:19:39,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:19:39,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:19:39,367 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 116 [2022-01-19 07:19:39,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 97 transitions, 319 flow. Second operand has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:19:39,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 116 [2022-01-19 07:19:39,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:19:39,445 INFO L129 PetriNetUnfolder]: 34/258 cut-off events. [2022-01-19 07:19:39,446 INFO L130 PetriNetUnfolder]: For 227/235 co-relation queries the response was YES. [2022-01-19 07:19:39,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 258 events. 34/258 cut-off events. For 227/235 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1275 event pairs, 2 based on Foata normal form. 1/253 useless extension candidates. Maximal degree in co-relation 452. Up to 23 conditions per place. [2022-01-19 07:19:39,447 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 0 selfloop transitions, 0 changer transitions 104/104 dead transitions. [2022-01-19 07:19:39,447 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 104 transitions, 393 flow [2022-01-19 07:19:39,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 07:19:39,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 07:19:39,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 881 transitions. [2022-01-19 07:19:39,449 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8438697318007663 [2022-01-19 07:19:39,449 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 881 transitions. [2022-01-19 07:19:39,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 881 transitions. [2022-01-19 07:19:39,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:19:39,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 881 transitions. [2022-01-19 07:19:39,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 97.88888888888889) internal successors, (881), 9 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,455 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,455 INFO L186 Difference]: Start difference. First operand has 123 places, 97 transitions, 319 flow. Second operand 9 states and 881 transitions. [2022-01-19 07:19:39,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 104 transitions, 393 flow [2022-01-19 07:19:39,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 104 transitions, 352 flow, removed 12 selfloop flow, removed 10 redundant places. [2022-01-19 07:19:39,457 INFO L242 Difference]: Finished difference. Result has 114 places, 0 transitions, 0 flow [2022-01-19 07:19:39,458 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=114, PETRI_TRANSITIONS=0} [2022-01-19 07:19:39,459 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 9 predicate places. [2022-01-19 07:19:39,459 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 0 transitions, 0 flow [2022-01-19 07:19:39,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:19:39,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 07:19:39,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 07:19:39,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-19 07:19:39,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-19 07:19:39,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 07:19:39,466 INFO L732 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1] [2022-01-19 07:19:39,467 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 07:19:39,467 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 07:19:39,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 07:19:39 BasicIcfg [2022-01-19 07:19:39,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 07:19:39,470 INFO L158 Benchmark]: Toolchain (without parser) took 4637.91ms. Allocated memory was 400.6MB in the beginning and 645.9MB in the end (delta: 245.4MB). Free memory was 347.4MB in the beginning and 495.1MB in the end (delta: -147.7MB). Peak memory consumption was 98.6MB. Max. memory is 16.0GB. [2022-01-19 07:19:39,470 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 400.6MB. Free memory is still 363.7MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 07:19:39,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.35ms. Allocated memory is still 400.6MB. Free memory was 347.2MB in the beginning and 373.6MB in the end (delta: -26.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.0GB. [2022-01-19 07:19:39,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.79ms. Allocated memory is still 400.6MB. Free memory was 373.6MB in the beginning and 372.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 07:19:39,471 INFO L158 Benchmark]: Boogie Preprocessor took 21.40ms. Allocated memory is still 400.6MB. Free memory was 372.2MB in the beginning and 370.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 07:19:39,471 INFO L158 Benchmark]: RCFGBuilder took 305.16ms. Allocated memory is still 400.6MB. Free memory was 370.8MB in the beginning and 358.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-19 07:19:39,472 INFO L158 Benchmark]: TraceAbstraction took 3963.43ms. Allocated memory was 400.6MB in the beginning and 645.9MB in the end (delta: 245.4MB). Free memory was 357.9MB in the beginning and 495.1MB in the end (delta: -137.2MB). Peak memory consumption was 109.5MB. Max. memory is 16.0GB. [2022-01-19 07:19:39,473 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 400.6MB. Free memory is still 363.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 304.35ms. Allocated memory is still 400.6MB. Free memory was 347.2MB in the beginning and 373.6MB in the end (delta: -26.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 38.79ms. Allocated memory is still 400.6MB. Free memory was 373.6MB in the beginning and 372.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 21.40ms. Allocated memory is still 400.6MB. Free memory was 372.2MB in the beginning and 370.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 305.16ms. Allocated memory is still 400.6MB. Free memory was 370.8MB in the beginning and 358.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3963.43ms. Allocated memory was 400.6MB in the beginning and 645.9MB in the end (delta: 245.4MB). Free memory was 357.9MB in the beginning and 495.1MB in the end (delta: -137.2MB). Peak memory consumption was 109.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 76]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 149 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 249 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 300 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 470 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 787 IncrementalHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 125 mSDtfsCounter, 787 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=425occurred in iteration=6, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 856 NumberOfCodeBlocks, 856 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 846 ConstructedInterpolants, 0 QuantifiedInterpolants, 2717 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 07:19:39,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...