/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:30:55,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:30:55,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:30:55,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:30:55,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:30:55,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:30:55,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:30:55,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:30:55,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:30:55,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:30:55,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:30:55,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:30:55,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:30:55,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:30:55,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:30:55,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:30:55,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:30:55,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:30:55,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:30:55,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:30:55,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:30:55,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:30:55,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:30:55,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:30:55,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:30:55,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:30:55,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:30:55,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:30:55,253 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:30:55,293 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:30:55,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:30:55,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:30:55,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:30:55,297 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:30:55,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:30:55,297 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:30:55,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:30:55,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:30:55,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:30:55,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:30:55,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:30:55,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:30:55,299 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:30:55,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:30:55,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:30:55,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:30:55,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:30:55,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:30:55,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:30:55,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:30:55,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:30:55,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:30:55,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:30:55,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:30:55,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:30:55,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:30:55,301 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:30:55,301 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:30:55,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:30:55,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:30:55,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:30:55,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:30:55,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:30:55,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:30:55,636 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:30:55,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2021-03-26 10:30:55,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c78d4be0c/4d1a8fab9b074dd5be4139927dccc2f2/FLAG074bfa667 [2021-03-26 10:30:56,276 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:30:56,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2021-03-26 10:30:56,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c78d4be0c/4d1a8fab9b074dd5be4139927dccc2f2/FLAG074bfa667 [2021-03-26 10:30:56,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c78d4be0c/4d1a8fab9b074dd5be4139927dccc2f2 [2021-03-26 10:30:56,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:30:56,681 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:30:56,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:30:56,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:30:56,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:30:56,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:30:56" (1/1) ... [2021-03-26 10:30:56,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7ea82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:56, skipping insertion in model container [2021-03-26 10:30:56,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:30:56" (1/1) ... [2021-03-26 10:30:56,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:30:56,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:30:56,853 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/safe009_tso.oepc.i[950,963] [2021-03-26 10:30:57,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:30:57,073 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:30:57,084 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/safe009_tso.oepc.i[950,963] [2021-03-26 10:30:57,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:30:57,198 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:30:57,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57 WrapperNode [2021-03-26 10:30:57,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:30:57,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:30:57,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:30:57,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:30:57,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57" (1/1) ... [2021-03-26 10:30:57,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57" (1/1) ... [2021-03-26 10:30:57,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:30:57,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:30:57,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:30:57,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:30:57,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57" (1/1) ... [2021-03-26 10:30:57,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57" (1/1) ... [2021-03-26 10:30:57,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57" (1/1) ... [2021-03-26 10:30:57,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57" (1/1) ... [2021-03-26 10:30:57,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57" (1/1) ... [2021-03-26 10:30:57,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57" (1/1) ... [2021-03-26 10:30:57,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57" (1/1) ... [2021-03-26 10:30:57,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:30:57,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:30:57,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:30:57,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:30:57,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57" (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 [2021-03-26 10:30:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:30:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:30:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:30:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:30:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:30:57,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:30:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:30:57,361 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:30:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:30:57,361 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:30:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:30:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:30:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:30:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:30:57,363 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:30:57,777 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:30:57,778 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:30:57,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:30:57 BoogieIcfgContainer [2021-03-26 10:30:57,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:30:57,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:30:57,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:30:57,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:30:57,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:30:56" (1/3) ... [2021-03-26 10:30:57,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae3f7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:30:57, skipping insertion in model container [2021-03-26 10:30:57,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:57" (2/3) ... [2021-03-26 10:30:57,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae3f7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:30:57, skipping insertion in model container [2021-03-26 10:30:57,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:30:57" (3/3) ... [2021-03-26 10:30:57,787 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2021-03-26 10:30:57,791 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:30:57,795 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:30:57,796 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:30:57,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,832 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,832 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,833 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,833 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,833 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,833 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,833 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,834 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,834 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,834 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,835 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,835 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,836 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,836 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,836 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,836 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,837 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,837 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,838 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,838 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,838 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,838 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,839 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,840 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,840 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,843 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,843 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,844 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,844 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,850 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,851 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,853 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,853 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:57,856 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:30:57,873 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:30:57,902 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:30:57,902 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:30:57,902 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:30:57,902 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:30:57,902 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:30:57,902 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:30:57,903 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:30:57,903 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:30:57,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-03-26 10:30:57,960 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-03-26 10:30:57,960 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:30:57,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-03-26 10:30:57,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-03-26 10:30:57,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-03-26 10:30:57,979 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:30:58,001 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-26 10:30:58,005 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-26 10:30:58,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-03-26 10:30:58,028 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-03-26 10:30:58,029 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:30:58,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-03-26 10:30:58,032 INFO L142 LiptonReduction]: Number of co-enabled transitions 812 [2021-03-26 10:30:59,454 INFO L154 LiptonReduction]: Checked pairs total: 861 [2021-03-26 10:30:59,455 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-26 10:30:59,459 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1481 [2021-03-26 10:30:59,473 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-26 10:30:59,473 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:30:59,473 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:30:59,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:30:59,474 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:30:59,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:30:59,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1640288609, now seen corresponding path program 1 times [2021-03-26 10:30:59,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:30:59,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623354188] [2021-03-26 10:30:59,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:30:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:30:59,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:59,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:30:59,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:59,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:59,781 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:30:59,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:30:59,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:30:59,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623354188] [2021-03-26 10:30:59,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:30:59,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:30:59,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574109325] [2021-03-26 10:30:59,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:30:59,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:30:59,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:30:59,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:30:59,824 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 110 [2021-03-26 10:30:59,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:30:59,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:30:59,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 110 [2021-03-26 10:30:59,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:30:59,856 INFO L129 PetriNetUnfolder]: 14/63 cut-off events. [2021-03-26 10:30:59,856 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:30:59,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 63 events. 14/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 207 event pairs, 8 based on Foata normal form. 3/60 useless extension candidates. Maximal degree in co-relation 97. Up to 25 conditions per place. [2021-03-26 10:30:59,858 INFO L132 encePairwiseOnDemand]: 105/110 looper letters, 7 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2021-03-26 10:30:59,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 81 flow [2021-03-26 10:30:59,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:30:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:30:59,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 373 transitions. [2021-03-26 10:30:59,869 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8477272727272728 [2021-03-26 10:30:59,869 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 373 transitions. [2021-03-26 10:30:59,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 373 transitions. [2021-03-26 10:30:59,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:30:59,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 373 transitions. [2021-03-26 10:30:59,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:30:59,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:30:59,882 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:30:59,884 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 4 states and 373 transitions. [2021-03-26 10:30:59,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 81 flow [2021-03-26 10:30:59,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 25 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:30:59,888 INFO L241 Difference]: Finished difference. Result has 34 places, 23 transitions, 76 flow [2021-03-26 10:30:59,889 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=76, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2021-03-26 10:30:59,890 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2021-03-26 10:30:59,890 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:30:59,890 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 23 transitions, 76 flow [2021-03-26 10:30:59,891 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 23 transitions, 76 flow [2021-03-26 10:30:59,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 23 transitions, 76 flow [2021-03-26 10:30:59,897 INFO L129 PetriNetUnfolder]: 4/43 cut-off events. [2021-03-26 10:30:59,897 INFO L130 PetriNetUnfolder]: For 12/13 co-relation queries the response was YES. [2021-03-26 10:30:59,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 43 events. 4/43 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 109 event pairs, 2 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 72. Up to 11 conditions per place. [2021-03-26 10:30:59,898 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-26 10:31:00,374 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 10:31:00,645 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 10:31:00,750 INFO L154 LiptonReduction]: Checked pairs total: 273 [2021-03-26 10:31:00,750 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:31:00,750 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 860 [2021-03-26 10:31:00,752 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 66 flow [2021-03-26 10:31:00,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:00,753 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:31:00,753 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:31:00,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:31:00,753 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:31:00,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:31:00,761 INFO L82 PathProgramCache]: Analyzing trace with hash -690661269, now seen corresponding path program 1 times [2021-03-26 10:31:00,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:31:00,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196423670] [2021-03-26 10:31:00,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:31:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:31:00,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:00,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:31:00,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:00,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:00,857 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:31:00,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:31:00,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:31:00,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196423670] [2021-03-26 10:31:00,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:31:00,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:31:00,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105388788] [2021-03-26 10:31:00,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:31:00,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:31:00,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:31:00,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:31:00,869 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2021-03-26 10:31:00,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:00,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:31:00,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2021-03-26 10:31:00,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:31:00,904 INFO L129 PetriNetUnfolder]: 11/57 cut-off events. [2021-03-26 10:31:00,904 INFO L130 PetriNetUnfolder]: For 41/45 co-relation queries the response was YES. [2021-03-26 10:31:00,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 57 events. 11/57 cut-off events. For 41/45 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 207 event pairs, 3 based on Foata normal form. 3/57 useless extension candidates. Maximal degree in co-relation 134. Up to 22 conditions per place. [2021-03-26 10:31:00,906 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 5 selfloop transitions, 7 changer transitions 0/22 dead transitions. [2021-03-26 10:31:00,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 110 flow [2021-03-26 10:31:00,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:31:00,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:31:00,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2021-03-26 10:31:00,910 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8239130434782609 [2021-03-26 10:31:00,910 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 379 transitions. [2021-03-26 10:31:00,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 379 transitions. [2021-03-26 10:31:00,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:31:00,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 379 transitions. [2021-03-26 10:31:00,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:00,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:00,916 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:00,916 INFO L185 Difference]: Start difference. First operand has 29 places, 18 transitions, 66 flow. Second operand 4 states and 379 transitions. [2021-03-26 10:31:00,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 22 transitions, 110 flow [2021-03-26 10:31:00,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:31:00,918 INFO L241 Difference]: Finished difference. Result has 33 places, 20 transitions, 100 flow [2021-03-26 10:31:00,918 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2021-03-26 10:31:00,919 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2021-03-26 10:31:00,919 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:31:00,919 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 20 transitions, 100 flow [2021-03-26 10:31:00,920 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 20 transitions, 100 flow [2021-03-26 10:31:00,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 20 transitions, 100 flow [2021-03-26 10:31:00,929 INFO L129 PetriNetUnfolder]: 7/47 cut-off events. [2021-03-26 10:31:00,929 INFO L130 PetriNetUnfolder]: For 44/48 co-relation queries the response was YES. [2021-03-26 10:31:00,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 47 events. 7/47 cut-off events. For 44/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 157 event pairs, 4 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 117. Up to 14 conditions per place. [2021-03-26 10:31:00,931 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-26 10:31:00,946 INFO L154 LiptonReduction]: Checked pairs total: 86 [2021-03-26 10:31:00,946 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:31:00,946 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-26 10:31:00,948 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 100 flow [2021-03-26 10:31:00,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:00,949 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:31:00,949 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:31:00,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:31:00,949 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:31:00,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:31:00,949 INFO L82 PathProgramCache]: Analyzing trace with hash 2138358056, now seen corresponding path program 1 times [2021-03-26 10:31:00,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:31:00,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453371834] [2021-03-26 10:31:00,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:31:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:31:01,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:31:01,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453371834] [2021-03-26 10:31:01,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:31:01,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:31:01,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431782933] [2021-03-26 10:31:01,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:31:01,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:31:01,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:31:01,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:31:01,032 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 115 [2021-03-26 10:31:01,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:31:01,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 115 [2021-03-26 10:31:01,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:31:01,067 INFO L129 PetriNetUnfolder]: 3/45 cut-off events. [2021-03-26 10:31:01,067 INFO L130 PetriNetUnfolder]: For 70/87 co-relation queries the response was YES. [2021-03-26 10:31:01,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 45 events. 3/45 cut-off events. For 70/87 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 161 event pairs, 1 based on Foata normal form. 6/50 useless extension candidates. Maximal degree in co-relation 126. Up to 12 conditions per place. [2021-03-26 10:31:01,068 INFO L132 encePairwiseOnDemand]: 110/115 looper letters, 5 selfloop transitions, 5 changer transitions 4/25 dead transitions. [2021-03-26 10:31:01,068 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 25 transitions, 166 flow [2021-03-26 10:31:01,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:31:01,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:31:01,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 392 transitions. [2021-03-26 10:31:01,070 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8521739130434782 [2021-03-26 10:31:01,070 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 392 transitions. [2021-03-26 10:31:01,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 392 transitions. [2021-03-26 10:31:01,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:31:01,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 392 transitions. [2021-03-26 10:31:01,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,072 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,072 INFO L185 Difference]: Start difference. First operand has 33 places, 20 transitions, 100 flow. Second operand 4 states and 392 transitions. [2021-03-26 10:31:01,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 25 transitions, 166 flow [2021-03-26 10:31:01,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 25 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:31:01,075 INFO L241 Difference]: Finished difference. Result has 36 places, 21 transitions, 122 flow [2021-03-26 10:31:01,075 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=36, PETRI_TRANSITIONS=21} [2021-03-26 10:31:01,075 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2021-03-26 10:31:01,075 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:31:01,075 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 21 transitions, 122 flow [2021-03-26 10:31:01,076 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 21 transitions, 122 flow [2021-03-26 10:31:01,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 21 transitions, 122 flow [2021-03-26 10:31:01,080 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-03-26 10:31:01,080 INFO L130 PetriNetUnfolder]: For 53/59 co-relation queries the response was YES. [2021-03-26 10:31:01,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 35 events. 3/35 cut-off events. For 53/59 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 102 event pairs, 0 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 100. Up to 11 conditions per place. [2021-03-26 10:31:01,081 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-26 10:31:01,083 INFO L154 LiptonReduction]: Checked pairs total: 106 [2021-03-26 10:31:01,083 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:31:01,083 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 10:31:01,084 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 21 transitions, 122 flow [2021-03-26 10:31:01,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,084 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:31:01,084 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:31:01,084 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:31:01,085 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:31:01,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:31:01,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1864710786, now seen corresponding path program 1 times [2021-03-26 10:31:01,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:31:01,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865892761] [2021-03-26 10:31:01,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:31:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:31:01,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:31:01,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:31:01,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865892761] [2021-03-26 10:31:01,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:31:01,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:31:01,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422989701] [2021-03-26 10:31:01,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:31:01,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:31:01,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:31:01,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:31:01,117 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 115 [2021-03-26 10:31:01,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 21 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:31:01,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 115 [2021-03-26 10:31:01,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:31:01,138 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-03-26 10:31:01,138 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-03-26 10:31:01,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 36 events. 0/36 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 118 event pairs, 0 based on Foata normal form. 3/39 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-26 10:31:01,138 INFO L132 encePairwiseOnDemand]: 111/115 looper letters, 4 selfloop transitions, 3 changer transitions 3/21 dead transitions. [2021-03-26 10:31:01,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 21 transitions, 142 flow [2021-03-26 10:31:01,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:31:01,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:31:01,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 485 transitions. [2021-03-26 10:31:01,140 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8434782608695652 [2021-03-26 10:31:01,140 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 485 transitions. [2021-03-26 10:31:01,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 485 transitions. [2021-03-26 10:31:01,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:31:01,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 485 transitions. [2021-03-26 10:31:01,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,143 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,143 INFO L185 Difference]: Start difference. First operand has 36 places, 21 transitions, 122 flow. Second operand 5 states and 485 transitions. [2021-03-26 10:31:01,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 21 transitions, 142 flow [2021-03-26 10:31:01,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 21 transitions, 120 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-26 10:31:01,146 INFO L241 Difference]: Finished difference. Result has 39 places, 18 transitions, 89 flow [2021-03-26 10:31:01,146 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=89, PETRI_PLACES=39, PETRI_TRANSITIONS=18} [2021-03-26 10:31:01,146 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2021-03-26 10:31:01,146 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:31:01,146 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 18 transitions, 89 flow [2021-03-26 10:31:01,146 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 18 transitions, 89 flow [2021-03-26 10:31:01,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 18 transitions, 89 flow [2021-03-26 10:31:01,149 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-03-26 10:31:01,149 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-03-26 10:31:01,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 26 events. 0/26 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-26 10:31:01,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 10:31:01,151 INFO L154 LiptonReduction]: Checked pairs total: 70 [2021-03-26 10:31:01,151 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:31:01,151 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-26 10:31:01,152 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 18 transitions, 89 flow [2021-03-26 10:31:01,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:31:01,153 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:31:01,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:31:01,153 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:31:01,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:31:01,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1864679073, now seen corresponding path program 1 times [2021-03-26 10:31:01,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:31:01,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076345756] [2021-03-26 10:31:01,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:31:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:31:01,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,183 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:31:01,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:31:01,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:31:01,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076345756] [2021-03-26 10:31:01,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:31:01,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:31:01,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142758539] [2021-03-26 10:31:01,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:31:01,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:31:01,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:31:01,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:31:01,194 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 115 [2021-03-26 10:31:01,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 18 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,194 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:31:01,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 115 [2021-03-26 10:31:01,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:31:01,222 INFO L129 PetriNetUnfolder]: 3/37 cut-off events. [2021-03-26 10:31:01,222 INFO L130 PetriNetUnfolder]: For 134/134 co-relation queries the response was YES. [2021-03-26 10:31:01,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 37 events. 3/37 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 93 event pairs, 2 based on Foata normal form. 4/40 useless extension candidates. Maximal degree in co-relation 108. Up to 12 conditions per place. [2021-03-26 10:31:01,223 INFO L132 encePairwiseOnDemand]: 110/115 looper letters, 3 selfloop transitions, 4 changer transitions 5/21 dead transitions. [2021-03-26 10:31:01,223 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 21 transitions, 140 flow [2021-03-26 10:31:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:31:01,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:31:01,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 457 transitions. [2021-03-26 10:31:01,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7947826086956522 [2021-03-26 10:31:01,229 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 457 transitions. [2021-03-26 10:31:01,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 457 transitions. [2021-03-26 10:31:01,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:31:01,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 457 transitions. [2021-03-26 10:31:01,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,233 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,233 INFO L185 Difference]: Start difference. First operand has 37 places, 18 transitions, 89 flow. Second operand 5 states and 457 transitions. [2021-03-26 10:31:01,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 21 transitions, 140 flow [2021-03-26 10:31:01,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 21 transitions, 121 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-26 10:31:01,236 INFO L241 Difference]: Finished difference. Result has 38 places, 16 transitions, 81 flow [2021-03-26 10:31:01,236 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=81, PETRI_PLACES=38, PETRI_TRANSITIONS=16} [2021-03-26 10:31:01,236 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-26 10:31:01,236 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:31:01,236 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 16 transitions, 81 flow [2021-03-26 10:31:01,237 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 16 transitions, 81 flow [2021-03-26 10:31:01,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 16 transitions, 81 flow [2021-03-26 10:31:01,244 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 10:31:01,245 INFO L130 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2021-03-26 10:31:01,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 18 events. 0/18 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 10:31:01,247 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-26 10:31:01,293 INFO L154 LiptonReduction]: Checked pairs total: 44 [2021-03-26 10:31:01,294 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:31:01,294 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-26 10:31:01,295 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 14 transitions, 77 flow [2021-03-26 10:31:01,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,295 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:31:01,295 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:31:01,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:31:01,295 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:31:01,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:31:01,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1970298189, now seen corresponding path program 1 times [2021-03-26 10:31:01,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:31:01,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079108240] [2021-03-26 10:31:01,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:31:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:31:01,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:31:01,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:31:01,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079108240] [2021-03-26 10:31:01,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:31:01,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:31:01,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512888545] [2021-03-26 10:31:01,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:31:01,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:31:01,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:31:01,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:31:01,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 117 [2021-03-26 10:31:01,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 14 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:31:01,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 117 [2021-03-26 10:31:01,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:31:01,378 INFO L129 PetriNetUnfolder]: 16/44 cut-off events. [2021-03-26 10:31:01,379 INFO L130 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2021-03-26 10:31:01,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 44 events. 16/44 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 105 event pairs, 7 based on Foata normal form. 1/42 useless extension candidates. Maximal degree in co-relation 141. Up to 34 conditions per place. [2021-03-26 10:31:01,380 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 4 selfloop transitions, 3 changer transitions 1/17 dead transitions. [2021-03-26 10:31:01,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 17 transitions, 108 flow [2021-03-26 10:31:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:31:01,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:31:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2021-03-26 10:31:01,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2021-03-26 10:31:01,382 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2021-03-26 10:31:01,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2021-03-26 10:31:01,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:31:01,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2021-03-26 10:31:01,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,386 INFO L185 Difference]: Start difference. First operand has 36 places, 14 transitions, 77 flow. Second operand 3 states and 297 transitions. [2021-03-26 10:31:01,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 17 transitions, 108 flow [2021-03-26 10:31:01,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 17 transitions, 78 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-03-26 10:31:01,389 INFO L241 Difference]: Finished difference. Result has 30 places, 16 transitions, 71 flow [2021-03-26 10:31:01,389 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=30, PETRI_TRANSITIONS=16} [2021-03-26 10:31:01,390 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2021-03-26 10:31:01,390 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:31:01,390 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 16 transitions, 71 flow [2021-03-26 10:31:01,391 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 16 transitions, 71 flow [2021-03-26 10:31:01,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 16 transitions, 71 flow [2021-03-26 10:31:01,395 INFO L129 PetriNetUnfolder]: 12/39 cut-off events. [2021-03-26 10:31:01,395 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2021-03-26 10:31:01,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 39 events. 12/39 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 88 event pairs, 7 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 118. Up to 28 conditions per place. [2021-03-26 10:31:01,398 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-26 10:31:01,432 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 10:31:01,432 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:31:01,432 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-26 10:31:01,433 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 16 transitions, 73 flow [2021-03-26 10:31:01,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,434 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:31:01,434 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:31:01,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:31:01,434 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:31:01,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:31:01,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1197042032, now seen corresponding path program 1 times [2021-03-26 10:31:01,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:31:01,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392807153] [2021-03-26 10:31:01,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:31:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:31:01,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:31:01,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:31:01,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392807153] [2021-03-26 10:31:01,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:31:01,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:31:01,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387638763] [2021-03-26 10:31:01,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:31:01,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:31:01,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:31:01,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:31:01,496 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 118 [2021-03-26 10:31:01,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 16 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,498 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:31:01,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 118 [2021-03-26 10:31:01,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:31:01,520 INFO L129 PetriNetUnfolder]: 6/29 cut-off events. [2021-03-26 10:31:01,520 INFO L130 PetriNetUnfolder]: For 30/31 co-relation queries the response was YES. [2021-03-26 10:31:01,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 29 events. 6/29 cut-off events. For 30/31 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 event pairs, 1 based on Foata normal form. 3/32 useless extension candidates. Maximal degree in co-relation 97. Up to 18 conditions per place. [2021-03-26 10:31:01,521 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 2 selfloop transitions, 5 changer transitions 3/19 dead transitions. [2021-03-26 10:31:01,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 19 transitions, 111 flow [2021-03-26 10:31:01,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:31:01,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:31:01,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 395 transitions. [2021-03-26 10:31:01,523 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.836864406779661 [2021-03-26 10:31:01,523 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 395 transitions. [2021-03-26 10:31:01,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 395 transitions. [2021-03-26 10:31:01,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:31:01,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 395 transitions. [2021-03-26 10:31:01,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,526 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,526 INFO L185 Difference]: Start difference. First operand has 30 places, 16 transitions, 73 flow. Second operand 4 states and 395 transitions. [2021-03-26 10:31:01,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 19 transitions, 111 flow [2021-03-26 10:31:01,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 19 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:31:01,527 INFO L241 Difference]: Finished difference. Result has 33 places, 16 transitions, 88 flow [2021-03-26 10:31:01,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2021-03-26 10:31:01,527 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2021-03-26 10:31:01,527 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:31:01,528 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 16 transitions, 88 flow [2021-03-26 10:31:01,528 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 16 transitions, 88 flow [2021-03-26 10:31:01,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 16 transitions, 88 flow [2021-03-26 10:31:01,530 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-26 10:31:01,531 INFO L130 PetriNetUnfolder]: For 29/31 co-relation queries the response was YES. [2021-03-26 10:31:01,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 21 events. 2/21 cut-off events. For 29/31 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 1 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 65. Up to 10 conditions per place. [2021-03-26 10:31:01,531 INFO L142 LiptonReduction]: Number of co-enabled transitions 8 [2021-03-26 10:31:01,645 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 10:31:01,646 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:31:01,646 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 119 [2021-03-26 10:31:01,648 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 15 transitions, 87 flow [2021-03-26 10:31:01,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,648 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:31:01,649 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:31:01,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:31:01,649 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:31:01,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:31:01,649 INFO L82 PathProgramCache]: Analyzing trace with hash 2112719195, now seen corresponding path program 1 times [2021-03-26 10:31:01,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:31:01,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307910324] [2021-03-26 10:31:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:31:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:31:01,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:31:01,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:31:01,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:31:01,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:31:01,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307910324] [2021-03-26 10:31:01,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:31:01,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:31:01,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271807777] [2021-03-26 10:31:01,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:31:01,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:31:01,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:31:01,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:31:01,687 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 120 [2021-03-26 10:31:01,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 15 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 96.8) internal successors, (484), 5 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:31:01,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 120 [2021-03-26 10:31:01,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:31:01,703 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-03-26 10:31:01,703 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-03-26 10:31:01,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 17 events. 1/17 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 49. Up to 6 conditions per place. [2021-03-26 10:31:01,703 INFO L132 encePairwiseOnDemand]: 113/120 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2021-03-26 10:31:01,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 14 transitions, 87 flow [2021-03-26 10:31:01,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:31:01,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:31:01,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 487 transitions. [2021-03-26 10:31:01,705 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8116666666666666 [2021-03-26 10:31:01,705 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 487 transitions. [2021-03-26 10:31:01,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 487 transitions. [2021-03-26 10:31:01,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:31:01,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 487 transitions. [2021-03-26 10:31:01,707 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) [2021-03-26 10:31:01,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,709 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,709 INFO L185 Difference]: Start difference. First operand has 32 places, 15 transitions, 87 flow. Second operand 5 states and 487 transitions. [2021-03-26 10:31:01,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 14 transitions, 87 flow [2021-03-26 10:31:01,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 14 transitions, 69 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-26 10:31:01,711 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-03-26 10:31:01,711 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-03-26 10:31:01,711 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2021-03-26 10:31:01,711 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:31:01,711 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:31:01,712 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:31:01,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:31:01,713 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:31:01,713 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:31:01,713 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. [2021-03-26 10:31:01,713 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:31:01,713 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:31:01,713 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:31:01,713 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-26 10:31:01,715 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:31:01,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 96.8) internal successors, (484), 5 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:31:01,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:31:01,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:31:01 BasicIcfg [2021-03-26 10:31:01,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:31:01,721 INFO L168 Benchmark]: Toolchain (without parser) took 5038.21 ms. Allocated memory was 255.9 MB in the beginning and 434.1 MB in the end (delta: 178.3 MB). Free memory was 232.8 MB in the beginning and 210.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 199.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:31:01,721 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 255.9 MB. Free memory was 237.7 MB in the beginning and 237.5 MB in the end (delta: 168.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:31:01,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.19 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 232.8 MB in the beginning and 323.8 MB in the end (delta: -91.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-26 10:31:01,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.62 ms. Allocated memory is still 360.7 MB. Free memory was 323.8 MB in the beginning and 321.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:31:01,724 INFO L168 Benchmark]: Boogie Preprocessor took 32.34 ms. Allocated memory is still 360.7 MB. Free memory was 321.7 MB in the beginning and 320.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:31:01,726 INFO L168 Benchmark]: RCFGBuilder took 490.19 ms. Allocated memory is still 360.7 MB. Free memory was 320.3 MB in the beginning and 298.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-26 10:31:01,726 INFO L168 Benchmark]: TraceAbstraction took 3937.23 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 298.0 MB in the beginning and 210.8 MB in the end (delta: 87.1 MB). Peak memory consumption was 163.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:31:01,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 255.9 MB. Free memory was 237.7 MB in the beginning and 237.5 MB in the end (delta: 168.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 517.19 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 232.8 MB in the beginning and 323.8 MB in the end (delta: -91.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.62 ms. Allocated memory is still 360.7 MB. Free memory was 323.8 MB in the beginning and 321.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.34 ms. Allocated memory is still 360.7 MB. Free memory was 321.7 MB in the beginning and 320.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 490.19 ms. Allocated memory is still 360.7 MB. Free memory was 320.3 MB in the beginning and 298.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3937.23 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 298.0 MB in the beginning and 210.8 MB in the end (delta: 87.1 MB). Peak memory consumption was 163.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1450.3ms, 67 PlacesBefore, 31 PlacesAfterwards, 58 TransitionsBefore, 21 TransitionsAfterwards, 812 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 861 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 586, positive: 560, positive conditional: 560, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 586, positive: 560, positive conditional: 0, positive unconditional: 560, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 586, positive: 560, positive conditional: 0, positive unconditional: 560, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 505, positive: 485, positive conditional: 0, positive unconditional: 485, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 505, positive: 481, positive conditional: 0, positive unconditional: 481, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 24, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 586, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 505, unknown conditional: 0, unknown unconditional: 505] , Statistics on independence cache: Total cache size (in pairs): 505, Positive cache size: 485, Positive conditional cache size: 0, Positive unconditional cache size: 485, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 859.4ms, 34 PlacesBefore, 29 PlacesAfterwards, 23 TransitionsBefore, 18 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 273 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 125, positive: 103, positive conditional: 103, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 125, positive: 103, positive conditional: 0, positive unconditional: 103, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 125, positive: 103, positive conditional: 0, positive unconditional: 103, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 33, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 33, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 40, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 125, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 33, unknown conditional: 0, unknown unconditional: 33] , Statistics on independence cache: Total cache size (in pairs): 538, Positive cache size: 513, Positive conditional cache size: 0, Positive unconditional cache size: 513, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.0ms, 33 PlacesBefore, 33 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 86 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 545, Positive cache size: 519, Positive conditional cache size: 0, Positive unconditional cache size: 519, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0ms, 36 PlacesBefore, 36 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 102 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 106 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 64, positive: 53, positive conditional: 53, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 64, positive: 53, positive conditional: 6, positive unconditional: 47, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64, positive: 53, positive conditional: 6, positive unconditional: 47, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 2, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 64, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 8, unknown conditional: 2, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 553, Positive cache size: 527, Positive conditional cache size: 2, Positive unconditional cache size: 525, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7ms, 39 PlacesBefore, 37 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 72 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 70 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 37, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 37, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 37, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 555, Positive cache size: 529, Positive conditional cache size: 2, Positive unconditional cache size: 527, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.1ms, 38 PlacesBefore, 36 PlacesAfterwards, 16 TransitionsBefore, 14 TransitionsAfterwards, 38 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 44 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 19, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 557, Positive cache size: 531, Positive conditional cache size: 2, Positive unconditional cache size: 529, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.7ms, 30 PlacesBefore, 30 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 18 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 558, Positive cache size: 532, Positive conditional cache size: 3, Positive unconditional cache size: 529, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 118.0ms, 33 PlacesBefore, 32 PlacesAfterwards, 16 TransitionsBefore, 15 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 559, Positive cache size: 533, Positive conditional cache size: 3, Positive unconditional cache size: 530, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 30 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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): 559, Positive cache size: 533, Positive conditional cache size: 3, Positive unconditional cache size: 530, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 0 - 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, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3818.7ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 333.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1562.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 40 SDtfs, 19 SDslu, 13 SDs, 0 SdLazy, 74 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 68.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 76.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=3, InterpolantAutomatonStates: 34, 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: 23.5ms SsaConstructionTime, 162.2ms SatisfiabilityAnalysisTime, 406.0ms InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...