/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:57:07,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:57:07,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:57:07,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:57:07,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:57:07,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:57:07,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:57:07,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:57:07,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:57:07,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:57:07,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:57:07,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:57:07,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:57:07,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:57:07,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:57:07,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:57:07,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:57:07,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:57:07,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:57:07,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:57:07,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:57:07,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:57:07,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:57:07,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:57:07,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 04:57:07,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 04:57:07,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 04:57:07,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 04:57:07,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 04:57:07,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 04:57:07,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:57:07,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:57:07,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:57:07,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:57:07,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:57:07,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:57:07,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:57:07,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:57:07,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:57:07,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:57:07,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:57:07,448 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-RepeatedVariableLbe.epf [2021-03-25 04:57:07,492 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:57:07,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:57:07,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:57:07,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:57:07,494 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:57:07,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:57:07,494 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:57:07,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:57:07,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:57:07,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:57:07,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:57:07,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:57:07,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:57:07,495 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:57:07,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:57:07,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:57:07,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:57:07,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:57:07,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:57:07,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:57:07,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:57:07,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:57:07,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:57:07,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:57:07,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:57:07,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:57:07,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:57:07,497 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:57:07,498 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:57:07,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:57:07,498 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:57:07,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:57:07,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:57:07,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:57:07,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:57:07,820 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:57:07,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2021-03-25 04:57:07,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329988afe/9c1a93f9dac847ac882677fd1589dfdc/FLAG71d2effd4 [2021-03-25 04:57:08,371 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:57:08,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2021-03-25 04:57:08,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329988afe/9c1a93f9dac847ac882677fd1589dfdc/FLAG71d2effd4 [2021-03-25 04:57:08,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329988afe/9c1a93f9dac847ac882677fd1589dfdc [2021-03-25 04:57:08,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:57:08,668 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:57:08,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:57:08,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:57:08,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:57:08,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:57:08" (1/1) ... [2021-03-25 04:57:08,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@942125f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:08, skipping insertion in model container [2021-03-25 04:57:08,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:57:08" (1/1) ... [2021-03-25 04:57:08,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:57:08,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:57:08,924 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i[950,963] [2021-03-25 04:57:09,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:57:09,065 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:57:09,075 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i[950,963] [2021-03-25 04:57:09,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:57:09,159 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:57:09,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09 WrapperNode [2021-03-25 04:57:09,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:57:09,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:57:09,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:57:09,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:57:09,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09" (1/1) ... [2021-03-25 04:57:09,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09" (1/1) ... [2021-03-25 04:57:09,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:57:09,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:57:09,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:57:09,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:57:09,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09" (1/1) ... [2021-03-25 04:57:09,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09" (1/1) ... [2021-03-25 04:57:09,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09" (1/1) ... [2021-03-25 04:57:09,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09" (1/1) ... [2021-03-25 04:57:09,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09" (1/1) ... [2021-03-25 04:57:09,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09" (1/1) ... [2021-03-25 04:57:09,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09" (1/1) ... [2021-03-25 04:57:09,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:57:09,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:57:09,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:57:09,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:57:09,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:57:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:57:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:57:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:57:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:57:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:57:09,275 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:57:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:57:09,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:57:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:57:09,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:57:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:57:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:57:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:57:09,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:57:09,278 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 04:57:09,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:57:09,687 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 04:57:09,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:57:09 BoogieIcfgContainer [2021-03-25 04:57:09,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:57:09,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:57:09,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:57:09,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:57:09,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:57:08" (1/3) ... [2021-03-25 04:57:09,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3908974f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:57:09, skipping insertion in model container [2021-03-25 04:57:09,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:57:09" (2/3) ... [2021-03-25 04:57:09,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3908974f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:57:09, skipping insertion in model container [2021-03-25 04:57:09,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:57:09" (3/3) ... [2021-03-25 04:57:09,699 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2021-03-25 04:57:09,704 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:57:09,707 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 04:57:09,708 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:57:09,741 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,741 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,741 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,741 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,742 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,742 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,744 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,744 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,744 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,744 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,744 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,744 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,744 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,744 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,745 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,745 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,745 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,746 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,747 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,748 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,748 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,748 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,748 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,749 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,751 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,752 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,752 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,752 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,758 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,758 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,764 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,764 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:57:09,766 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:57:09,782 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 04:57:09,803 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:57:09,803 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:57:09,804 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:57:09,804 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:57:09,804 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:57:09,804 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:57:09,804 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:57:09,804 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:57:09,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-25 04:57:09,853 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-25 04:57:09,854 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:57:09,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-25 04:57:09,857 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-25 04:57:09,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-25 04:57:09,870 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:57:09,877 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-25 04:57:09,879 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-25 04:57:09,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-25 04:57:09,893 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-25 04:57:09,893 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:57:09,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-25 04:57:09,896 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-25 04:57:11,342 INFO L154 LiptonReduction]: Checked pairs total: 1328 [2021-03-25 04:57:11,342 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-25 04:57:11,344 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1475 [2021-03-25 04:57:11,357 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-25 04:57:11,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:57:11,358 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:57:11,359 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:57:11,359 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:57:11,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:57:11,365 INFO L82 PathProgramCache]: Analyzing trace with hash -864788976, now seen corresponding path program 1 times [2021-03-25 04:57:11,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:57:11,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88884690] [2021-03-25 04:57:11,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:57:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:57:11,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:11,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:57:11,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:11,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:57:11,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:11,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:57:11,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:57:11,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88884690] [2021-03-25 04:57:11,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:57:11,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:57:11,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098476913] [2021-03-25 04:57:11,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:57:11,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:57:11,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:57:11,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:57:11,588 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 116 [2021-03-25 04:57:11,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:11,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:57:11,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 116 [2021-03-25 04:57:11,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:57:11,664 INFO L129 PetriNetUnfolder]: 41/111 cut-off events. [2021-03-25 04:57:11,664 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:57:11,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 111 events. 41/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 422 event pairs, 9 based on Foata normal form. 12/119 useless extension candidates. Maximal degree in co-relation 190. Up to 53 conditions per place. [2021-03-25 04:57:11,668 INFO L132 encePairwiseOnDemand]: 111/116 looper letters, 8 selfloop transitions, 3 changer transitions 9/34 dead transitions. [2021-03-25 04:57:11,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 34 transitions, 117 flow [2021-03-25 04:57:11,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:57:11,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:57:11,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 487 transitions. [2021-03-25 04:57:11,686 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8396551724137931 [2021-03-25 04:57:11,686 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 487 transitions. [2021-03-25 04:57:11,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 487 transitions. [2021-03-25 04:57:11,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:57:11,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 487 transitions. [2021-03-25 04:57:11,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:11,704 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) [2021-03-25 04:57:11,705 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) [2021-03-25 04:57:11,706 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 5 states and 487 transitions. [2021-03-25 04:57:11,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 34 transitions, 117 flow [2021-03-25 04:57:11,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 34 transitions, 114 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 04:57:11,709 INFO L241 Difference]: Finished difference. Result has 35 places, 23 transitions, 75 flow [2021-03-25 04:57:11,711 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=75, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2021-03-25 04:57:11,711 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2021-03-25 04:57:11,712 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:57:11,712 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 23 transitions, 75 flow [2021-03-25 04:57:11,712 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 23 transitions, 75 flow [2021-03-25 04:57:11,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 23 transitions, 75 flow [2021-03-25 04:57:11,719 INFO L129 PetriNetUnfolder]: 5/32 cut-off events. [2021-03-25 04:57:11,720 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-25 04:57:11,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 32 events. 5/32 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 2 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 56. Up to 12 conditions per place. [2021-03-25 04:57:11,720 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-25 04:57:12,084 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-25 04:57:12,308 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-25 04:57:12,379 INFO L154 LiptonReduction]: Checked pairs total: 366 [2021-03-25 04:57:12,379 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:57:12,379 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 667 [2021-03-25 04:57:12,380 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 69 flow [2021-03-25 04:57:12,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,381 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:57:12,381 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:57:12,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:57:12,381 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:57:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:57:12,381 INFO L82 PathProgramCache]: Analyzing trace with hash -2134296910, now seen corresponding path program 1 times [2021-03-25 04:57:12,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:57:12,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285285895] [2021-03-25 04:57:12,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:57:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:57:12,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:12,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:57:12,479 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:57:12,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:57:12,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:12,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:57:12,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:57:12,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285285895] [2021-03-25 04:57:12,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:57:12,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:57:12,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518676091] [2021-03-25 04:57:12,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:57:12,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:57:12,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:57:12,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:57:12,498 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 119 [2021-03-25 04:57:12,499 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,499 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:57:12,499 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 119 [2021-03-25 04:57:12,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:57:12,569 INFO L129 PetriNetUnfolder]: 35/120 cut-off events. [2021-03-25 04:57:12,569 INFO L130 PetriNetUnfolder]: For 61/72 co-relation queries the response was YES. [2021-03-25 04:57:12,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 120 events. 35/120 cut-off events. For 61/72 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 524 event pairs, 6 based on Foata normal form. 13/130 useless extension candidates. Maximal degree in co-relation 287. Up to 41 conditions per place. [2021-03-25 04:57:12,570 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 14 selfloop transitions, 8 changer transitions 13/45 dead transitions. [2021-03-25 04:57:12,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 45 transitions, 241 flow [2021-03-25 04:57:12,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:57:12,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:57:12,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 621 transitions. [2021-03-25 04:57:12,574 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7454981992797118 [2021-03-25 04:57:12,574 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 621 transitions. [2021-03-25 04:57:12,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 621 transitions. [2021-03-25 04:57:12,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:57:12,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 621 transitions. [2021-03-25 04:57:12,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.71428571428571) internal successors, (621), 7 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,580 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,580 INFO L185 Difference]: Start difference. First operand has 30 places, 20 transitions, 69 flow. Second operand 7 states and 621 transitions. [2021-03-25 04:57:12,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 45 transitions, 241 flow [2021-03-25 04:57:12,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 45 transitions, 230 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 04:57:12,584 INFO L241 Difference]: Finished difference. Result has 40 places, 26 transitions, 148 flow [2021-03-25 04:57:12,584 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=148, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2021-03-25 04:57:12,584 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-25 04:57:12,584 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:57:12,585 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 26 transitions, 148 flow [2021-03-25 04:57:12,586 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 26 transitions, 148 flow [2021-03-25 04:57:12,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 26 transitions, 148 flow [2021-03-25 04:57:12,601 INFO L129 PetriNetUnfolder]: 19/77 cut-off events. [2021-03-25 04:57:12,601 INFO L130 PetriNetUnfolder]: For 118/123 co-relation queries the response was YES. [2021-03-25 04:57:12,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 77 events. 19/77 cut-off events. For 118/123 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 299 event pairs, 6 based on Foata normal form. 3/77 useless extension candidates. Maximal degree in co-relation 225. Up to 30 conditions per place. [2021-03-25 04:57:12,603 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-25 04:57:12,605 INFO L154 LiptonReduction]: Checked pairs total: 129 [2021-03-25 04:57:12,605 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:57:12,605 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 04:57:12,606 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 148 flow [2021-03-25 04:57:12,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,606 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:57:12,606 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:57:12,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:57:12,607 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:57:12,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:57:12,607 INFO L82 PathProgramCache]: Analyzing trace with hash 793329013, now seen corresponding path program 1 times [2021-03-25 04:57:12,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:57:12,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34133234] [2021-03-25 04:57:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:57:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:57:12,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:12,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:57:12,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:12,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:57:12,675 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:57:12,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:57:12,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:12,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:57:12,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:57:12,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34133234] [2021-03-25 04:57:12,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:57:12,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:57:12,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118453194] [2021-03-25 04:57:12,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:57:12,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:57:12,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:57:12,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:57:12,691 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 119 [2021-03-25 04:57:12,692 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,692 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:57:12,692 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 119 [2021-03-25 04:57:12,692 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:57:12,740 INFO L129 PetriNetUnfolder]: 22/89 cut-off events. [2021-03-25 04:57:12,740 INFO L130 PetriNetUnfolder]: For 179/222 co-relation queries the response was YES. [2021-03-25 04:57:12,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 89 events. 22/89 cut-off events. For 179/222 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 335 event pairs, 3 based on Foata normal form. 9/97 useless extension candidates. Maximal degree in co-relation 299. Up to 34 conditions per place. [2021-03-25 04:57:12,741 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 10 selfloop transitions, 14 changer transitions 5/39 dead transitions. [2021-03-25 04:57:12,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 39 transitions, 296 flow [2021-03-25 04:57:12,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:57:12,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:57:12,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 526 transitions. [2021-03-25 04:57:12,744 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7366946778711485 [2021-03-25 04:57:12,744 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 526 transitions. [2021-03-25 04:57:12,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 526 transitions. [2021-03-25 04:57:12,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:57:12,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 526 transitions. [2021-03-25 04:57:12,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,748 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,748 INFO L185 Difference]: Start difference. First operand has 37 places, 26 transitions, 148 flow. Second operand 6 states and 526 transitions. [2021-03-25 04:57:12,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 39 transitions, 296 flow [2021-03-25 04:57:12,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 39 transitions, 262 flow, removed 15 selfloop flow, removed 3 redundant places. [2021-03-25 04:57:12,751 INFO L241 Difference]: Finished difference. Result has 44 places, 31 transitions, 225 flow [2021-03-25 04:57:12,752 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=44, PETRI_TRANSITIONS=31} [2021-03-25 04:57:12,752 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-25 04:57:12,752 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:57:12,752 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 31 transitions, 225 flow [2021-03-25 04:57:12,752 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 31 transitions, 225 flow [2021-03-25 04:57:12,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 31 transitions, 225 flow [2021-03-25 04:57:12,759 INFO L129 PetriNetUnfolder]: 19/82 cut-off events. [2021-03-25 04:57:12,759 INFO L130 PetriNetUnfolder]: For 147/177 co-relation queries the response was YES. [2021-03-25 04:57:12,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 82 events. 19/82 cut-off events. For 147/177 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 313 event pairs, 2 based on Foata normal form. 2/82 useless extension candidates. Maximal degree in co-relation 262. Up to 27 conditions per place. [2021-03-25 04:57:12,760 INFO L142 LiptonReduction]: Number of co-enabled transitions 186 [2021-03-25 04:57:12,763 INFO L154 LiptonReduction]: Checked pairs total: 116 [2021-03-25 04:57:12,763 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:57:12,763 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 04:57:12,764 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 225 flow [2021-03-25 04:57:12,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,764 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:57:12,764 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:57:12,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:57:12,764 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:57:12,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:57:12,765 INFO L82 PathProgramCache]: Analyzing trace with hash 756347553, now seen corresponding path program 1 times [2021-03-25 04:57:12,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:57:12,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025227764] [2021-03-25 04:57:12,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:57:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:57:12,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:12,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:57:12,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:12,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:57:12,823 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:57:12,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:57:12,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:12,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:57:12,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:57:12,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025227764] [2021-03-25 04:57:12,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:57:12,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:57:12,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714397699] [2021-03-25 04:57:12,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:57:12,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:57:12,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:57:12,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:57:12,846 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 119 [2021-03-25 04:57:12,846 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:57:12,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 119 [2021-03-25 04:57:12,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:57:12,897 INFO L129 PetriNetUnfolder]: 19/86 cut-off events. [2021-03-25 04:57:12,898 INFO L130 PetriNetUnfolder]: For 203/302 co-relation queries the response was YES. [2021-03-25 04:57:12,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 86 events. 19/86 cut-off events. For 203/302 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 348 event pairs, 0 based on Foata normal form. 10/95 useless extension candidates. Maximal degree in co-relation 334. Up to 30 conditions per place. [2021-03-25 04:57:12,899 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 9 selfloop transitions, 8 changer transitions 15/42 dead transitions. [2021-03-25 04:57:12,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 384 flow [2021-03-25 04:57:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:57:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:57:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 525 transitions. [2021-03-25 04:57:12,901 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7352941176470589 [2021-03-25 04:57:12,901 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 525 transitions. [2021-03-25 04:57:12,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 525 transitions. [2021-03-25 04:57:12,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:57:12,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 525 transitions. [2021-03-25 04:57:12,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.5) internal successors, (525), 6 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,907 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:12,907 INFO L185 Difference]: Start difference. First operand has 41 places, 31 transitions, 225 flow. Second operand 6 states and 525 transitions. [2021-03-25 04:57:12,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 384 flow [2021-03-25 04:57:12,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 366 flow, removed 9 selfloop flow, removed 2 redundant places. [2021-03-25 04:57:12,913 INFO L241 Difference]: Finished difference. Result has 47 places, 25 transitions, 183 flow [2021-03-25 04:57:12,913 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=183, PETRI_PLACES=47, PETRI_TRANSITIONS=25} [2021-03-25 04:57:12,913 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 16 predicate places. [2021-03-25 04:57:12,913 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:57:12,914 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 25 transitions, 183 flow [2021-03-25 04:57:12,914 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 25 transitions, 183 flow [2021-03-25 04:57:12,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 25 transitions, 183 flow [2021-03-25 04:57:12,917 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2021-03-25 04:57:12,917 INFO L130 PetriNetUnfolder]: For 91/108 co-relation queries the response was YES. [2021-03-25 04:57:12,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 36 events. 4/36 cut-off events. For 91/108 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 91 event pairs, 0 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 116. Up to 8 conditions per place. [2021-03-25 04:57:12,918 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-25 04:57:13,016 INFO L154 LiptonReduction]: Checked pairs total: 356 [2021-03-25 04:57:13,016 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:57:13,017 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 104 [2021-03-25 04:57:13,018 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 24 transitions, 188 flow [2021-03-25 04:57:13,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:13,019 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:57:13,019 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:57:13,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:57:13,019 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:57:13,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:57:13,019 INFO L82 PathProgramCache]: Analyzing trace with hash 266225271, now seen corresponding path program 1 times [2021-03-25 04:57:13,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:57:13,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603726756] [2021-03-25 04:57:13,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:57:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:57:13,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:13,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:57:13,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:13,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:57:13,072 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:57:13,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:57:13,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:13,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:57:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:57:13,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603726756] [2021-03-25 04:57:13,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:57:13,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:57:13,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877713398] [2021-03-25 04:57:13,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:57:13,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:57:13,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:57:13,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:57:13,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 122 [2021-03-25 04:57:13,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 24 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 83.33333333333333) internal successors, (500), 6 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:13,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:57:13,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 122 [2021-03-25 04:57:13,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:57:13,123 INFO L129 PetriNetUnfolder]: 9/51 cut-off events. [2021-03-25 04:57:13,123 INFO L130 PetriNetUnfolder]: For 337/434 co-relation queries the response was YES. [2021-03-25 04:57:13,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 51 events. 9/51 cut-off events. For 337/434 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 179 event pairs, 0 based on Foata normal form. 9/60 useless extension candidates. Maximal degree in co-relation 207. Up to 16 conditions per place. [2021-03-25 04:57:13,124 INFO L132 encePairwiseOnDemand]: 116/122 looper letters, 3 selfloop transitions, 5 changer transitions 16/33 dead transitions. [2021-03-25 04:57:13,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 33 transitions, 343 flow [2021-03-25 04:57:13,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:57:13,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:57:13,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 430 transitions. [2021-03-25 04:57:13,127 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7049180327868853 [2021-03-25 04:57:13,127 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 430 transitions. [2021-03-25 04:57:13,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 430 transitions. [2021-03-25 04:57:13,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:57:13,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 430 transitions. [2021-03-25 04:57:13,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:13,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:13,129 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:13,129 INFO L185 Difference]: Start difference. First operand has 45 places, 24 transitions, 188 flow. Second operand 5 states and 430 transitions. [2021-03-25 04:57:13,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 33 transitions, 343 flow [2021-03-25 04:57:13,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 253 flow, removed 10 selfloop flow, removed 9 redundant places. [2021-03-25 04:57:13,131 INFO L241 Difference]: Finished difference. Result has 42 places, 17 transitions, 98 flow [2021-03-25 04:57:13,131 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=98, PETRI_PLACES=42, PETRI_TRANSITIONS=17} [2021-03-25 04:57:13,132 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 11 predicate places. [2021-03-25 04:57:13,132 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:57:13,132 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 17 transitions, 98 flow [2021-03-25 04:57:13,132 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 17 transitions, 98 flow [2021-03-25 04:57:13,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 17 transitions, 98 flow [2021-03-25 04:57:13,134 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-25 04:57:13,134 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-03-25 04:57:13,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 17 events. 0/17 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 04:57:13,135 INFO L142 LiptonReduction]: Number of co-enabled transitions 78 [2021-03-25 04:57:13,196 INFO L154 LiptonReduction]: Checked pairs total: 48 [2021-03-25 04:57:13,196 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:57:13,196 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-25 04:57:13,196 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 14 transitions, 86 flow [2021-03-25 04:57:13,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 83.33333333333333) internal successors, (500), 6 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:13,197 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:57:13,197 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:57:13,197 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:57:13,197 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:57:13,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:57:13,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1122466213, now seen corresponding path program 1 times [2021-03-25 04:57:13,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:57:13,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100878700] [2021-03-25 04:57:13,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:57:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:57:13,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:13,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:57:13,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:57:13,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:57:13,231 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:57:13,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:57:13,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:57:13,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100878700] [2021-03-25 04:57:13,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:57:13,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:57:13,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136942035] [2021-03-25 04:57:13,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:57:13,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:57:13,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:57:13,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:57:13,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 125 [2021-03-25 04:57:13,242 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 14 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:13,242 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:57:13,242 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 125 [2021-03-25 04:57:13,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:57:13,252 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-25 04:57:13,252 INFO L130 PetriNetUnfolder]: For 54/63 co-relation queries the response was YES. [2021-03-25 04:57:13,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 13 events. 0/13 cut-off events. For 54/63 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 4/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 04:57:13,252 INFO L132 encePairwiseOnDemand]: 122/125 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2021-03-25 04:57:13,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 13 transitions, 80 flow [2021-03-25 04:57:13,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:57:13,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:57:13,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 357 transitions. [2021-03-25 04:57:13,254 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.714 [2021-03-25 04:57:13,254 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 357 transitions. [2021-03-25 04:57:13,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 357 transitions. [2021-03-25 04:57:13,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:57:13,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 357 transitions. [2021-03-25 04:57:13,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:13,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:13,256 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:13,256 INFO L185 Difference]: Start difference. First operand has 38 places, 14 transitions, 86 flow. Second operand 4 states and 357 transitions. [2021-03-25 04:57:13,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 13 transitions, 80 flow [2021-03-25 04:57:13,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 13 transitions, 44 flow, removed 2 selfloop flow, removed 15 redundant places. [2021-03-25 04:57:13,257 INFO L241 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2021-03-25 04:57:13,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2021-03-25 04:57:13,257 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -6 predicate places. [2021-03-25 04:57:13,258 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:57:13,258 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 0 transitions, 0 flow [2021-03-25 04:57:13,258 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 0 transitions, 0 flow [2021-03-25 04:57:13,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 04:57:13,258 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 04:57:13,258 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:57:13,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 04:57:13,258 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 04:57:13,258 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 04:57:13,258 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:57:13,259 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 04:57:13,259 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 04:57:13,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:57:13,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:57:13,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:57:13 BasicIcfg [2021-03-25 04:57:13,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:57:13,263 INFO L168 Benchmark]: Toolchain (without parser) took 4595.56 ms. Allocated memory was 255.9 MB in the beginning and 432.0 MB in the end (delta: 176.2 MB). Free memory was 234.8 MB in the beginning and 211.2 MB in the end (delta: 23.6 MB). Peak memory consumption was 199.5 MB. Max. memory is 16.0 GB. [2021-03-25 04:57:13,264 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 178.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:57:13,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 489.89 ms. Allocated memory was 255.9 MB in the beginning and 358.6 MB in the end (delta: 102.8 MB). Free memory was 234.8 MB in the beginning and 321.3 MB in the end (delta: -86.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-25 04:57:13,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.24 ms. Allocated memory is still 358.6 MB. Free memory was 321.3 MB in the beginning and 319.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:57:13,265 INFO L168 Benchmark]: Boogie Preprocessor took 18.09 ms. Allocated memory is still 358.6 MB. Free memory was 319.2 MB in the beginning and 317.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:57:13,265 INFO L168 Benchmark]: RCFGBuilder took 478.51 ms. Allocated memory is still 358.6 MB. Free memory was 317.8 MB in the beginning and 295.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:57:13,266 INFO L168 Benchmark]: TraceAbstraction took 3569.92 ms. Allocated memory was 358.6 MB in the beginning and 432.0 MB in the end (delta: 73.4 MB). Free memory was 294.7 MB in the beginning and 211.2 MB in the end (delta: 83.5 MB). Peak memory consumption was 159.4 MB. Max. memory is 16.0 GB. [2021-03-25 04:57:13,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 178.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 489.89 ms. Allocated memory was 255.9 MB in the beginning and 358.6 MB in the end (delta: 102.8 MB). Free memory was 234.8 MB in the beginning and 321.3 MB in the end (delta: -86.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.24 ms. Allocated memory is still 358.6 MB. Free memory was 321.3 MB in the beginning and 319.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.09 ms. Allocated memory is still 358.6 MB. Free memory was 319.2 MB in the beginning and 317.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 478.51 ms. Allocated memory is still 358.6 MB. Free memory was 317.8 MB in the beginning and 295.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3569.92 ms. Allocated memory was 358.6 MB in the beginning and 432.0 MB in the end (delta: 73.4 MB). Free memory was 294.7 MB in the beginning and 211.2 MB in the end (delta: 83.5 MB). Peak memory consumption was 159.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1462.8ms, 69 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1328 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 681, positive: 634, positive conditional: 0, positive unconditional: 634, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 447, positive: 428, positive conditional: 0, positive unconditional: 428, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 447, positive: 428, positive conditional: 0, positive unconditional: 428, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 681, positive: 206, positive conditional: 0, positive unconditional: 206, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 447, unknown conditional: 0, unknown unconditional: 447] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 35, Positive conditional cache size: 0, Positive unconditional cache size: 35, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 667.2ms, 35 PlacesBefore, 30 PlacesAfterwards, 23 TransitionsBefore, 20 TransitionsAfterwards, 150 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 366 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.4ms, 40 PlacesBefore, 37 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 174 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 129 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 28, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6ms, 44 PlacesBefore, 41 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 186 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 116 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 102.8ms, 47 PlacesBefore, 45 PlacesAfterwards, 25 TransitionsBefore, 24 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 356 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 100, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 100, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.7ms, 42 PlacesBefore, 38 PlacesAfterwards, 17 TransitionsBefore, 14 TransitionsAfterwards, 78 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 48 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 25 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3466.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 405.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1545.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 55 SDtfs, 69 SDslu, 62 SDs, 0 SdLazy, 93 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 92.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 138.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=3, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.4ms SsaConstructionTime, 115.6ms SatisfiabilityAnalysisTime, 358.9ms InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 374 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! Received shutdown request...