/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/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:30:37,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:30:37,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:30:37,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:30:37,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:30:37,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:30:37,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:30:37,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:30:37,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:30:37,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:30:37,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:30:37,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:30:37,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:30:37,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:30:37,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:30:37,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:30:37,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:30:37,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:30:37,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:30:37,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:30:37,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:30:37,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:30:37,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:30:37,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:30:37,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:30:37,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:30:38,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:30:38,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:30:38,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:30:38,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:30:38,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:30:38,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:30:38,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:30:38,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:30:38,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:30:38,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:30:38,154 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 10:30:38,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:30:38,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:30:38,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:30:38,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:30:38,205 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:30:38,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:30:38,206 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:30:38,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:30:38,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:30:38,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:30:38,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:30:38,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:30:38,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:30:38,207 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:30:38,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:30:38,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:30:38,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:30:38,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:30:38,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:30:38,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:30:38,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:30:38,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:30:38,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:30:38,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:30:38,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:30:38,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:30:38,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:30:38,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:30:38,210 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:30:38,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:30:38,210 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:30:38,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:30:38,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:30:38,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:30:38,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:30:38,548 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:30:38,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2021-03-26 10:30:38,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b31964e7/4b5854b49ef446c7a93de1c4415951f2/FLAG15a2c25f9 [2021-03-26 10:30:39,141 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:30:39,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2021-03-26 10:30:39,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b31964e7/4b5854b49ef446c7a93de1c4415951f2/FLAG15a2c25f9 [2021-03-26 10:30:39,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b31964e7/4b5854b49ef446c7a93de1c4415951f2 [2021-03-26 10:30:39,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:30:39,625 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:30:39,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:30:39,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:30:39,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:30:39,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:30:39" (1/1) ... [2021-03-26 10:30:39,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67648ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:39, skipping insertion in model container [2021-03-26 10:30:39,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:30:39" (1/1) ... [2021-03-26 10:30:39,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:30:39,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:30:39,821 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/safe008_tso.opt.i[949,962] [2021-03-26 10:30:39,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:30:39,938 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:30:39,948 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/safe008_tso.opt.i[949,962] [2021-03-26 10:30:39,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:30:40,063 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:30:40,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40 WrapperNode [2021-03-26 10:30:40,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:30:40,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:30:40,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:30:40,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:30:40,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40" (1/1) ... [2021-03-26 10:30:40,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40" (1/1) ... [2021-03-26 10:30:40,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:30:40,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:30:40,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:30:40,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:30:40,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40" (1/1) ... [2021-03-26 10:30:40,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40" (1/1) ... [2021-03-26 10:30:40,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40" (1/1) ... [2021-03-26 10:30:40,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40" (1/1) ... [2021-03-26 10:30:40,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40" (1/1) ... [2021-03-26 10:30:40,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40" (1/1) ... [2021-03-26 10:30:40,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40" (1/1) ... [2021-03-26 10:30:40,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:30:40,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:30:40,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:30:40,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:30:40,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40" (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 10:30:40,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:30:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:30:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:30:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:30:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:30:40,244 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:30:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:30:40,244 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:30:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:30:40,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:30:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:30:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:30:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:30:40,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:30:40,246 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 10:30:40,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:30:40,573 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:30:40,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:30:40 BoogieIcfgContainer [2021-03-26 10:30:40,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:30:40,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:30:40,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:30:40,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:30:40,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:30:39" (1/3) ... [2021-03-26 10:30:40,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d48d504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:30:40, skipping insertion in model container [2021-03-26 10:30:40,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:30:40" (2/3) ... [2021-03-26 10:30:40,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d48d504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:30:40, skipping insertion in model container [2021-03-26 10:30:40,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:30:40" (3/3) ... [2021-03-26 10:30:40,585 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2021-03-26 10:30:40,589 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:30:40,594 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:30:40,594 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:30:40,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,622 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,622 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,623 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,623 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,623 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,623 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,624 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,624 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,624 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,624 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,625 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,625 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,625 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,625 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,626 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,626 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,626 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,626 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,631 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,631 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,635 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,635 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,637 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,637 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,637 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,638 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:30:40,639 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:30:40,658 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:30:40,678 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:30:40,678 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:30:40,678 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:30:40,678 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:30:40,678 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:30:40,678 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:30:40,678 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:30:40,678 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:30:40,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:30:40,723 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-26 10:30:40,723 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:30:40,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 10:30:40,727 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:30:40,731 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-26 10:30:40,748 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:30:40,760 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:30:40,763 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:30:40,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-26 10:30:40,778 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-26 10:30:40,779 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:30:40,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 10:30:40,782 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 10:30:42,344 INFO L154 LiptonReduction]: Checked pairs total: 1328 [2021-03-26 10:30:42,344 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-26 10:30:42,347 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1599 [2021-03-26 10:30:42,357 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 10:30:42,357 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:30:42,357 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:30:42,358 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:30:42,358 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:30:42,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:30:42,363 INFO L82 PathProgramCache]: Analyzing trace with hash 775848287, now seen corresponding path program 1 times [2021-03-26 10:30:42,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:30:42,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398239931] [2021-03-26 10:30:42,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:30:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:30:42,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:42,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:30:42,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:42,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:42,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:42,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:42,584 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 10:30:42,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398239931] [2021-03-26 10:30:42,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:30:42,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:30:42,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270775116] [2021-03-26 10:30:42,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:30:42,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:30:42,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:30:42,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:30:42,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 116 [2021-03-26 10:30:42,623 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 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 10:30:42,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:30:42,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 116 [2021-03-26 10:30:42,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:30:42,675 INFO L129 PetriNetUnfolder]: 6/43 cut-off events. [2021-03-26 10:30:42,675 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:30:42,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 43 events. 6/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 93 event pairs, 2 based on Foata normal form. 4/47 useless extension candidates. Maximal degree in co-relation 61. Up to 15 conditions per place. [2021-03-26 10:30:42,678 INFO L132 encePairwiseOnDemand]: 111/116 looper letters, 4 selfloop transitions, 3 changer transitions 5/28 dead transitions. [2021-03-26 10:30:42,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 28 transitions, 89 flow [2021-03-26 10:30:42,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:30:42,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:30:42,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 494 transitions. [2021-03-26 10:30:42,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8517241379310345 [2021-03-26 10:30:42,701 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 494 transitions. [2021-03-26 10:30:42,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 494 transitions. [2021-03-26 10:30:42,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:30:42,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 494 transitions. [2021-03-26 10:30:42,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 0 states have call successors, (0), 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 10:30:42,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:30:42,734 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:30:42,736 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 5 states and 494 transitions. [2021-03-26 10:30:42,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 28 transitions, 89 flow [2021-03-26 10:30:42,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:30:42,740 INFO L241 Difference]: Finished difference. Result has 35 places, 23 transitions, 75 flow [2021-03-26 10:30:42,742 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=75, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2021-03-26 10:30:42,743 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2021-03-26 10:30:42,743 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:30:42,743 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 23 transitions, 75 flow [2021-03-26 10:30:42,744 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 23 transitions, 75 flow [2021-03-26 10:30:42,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 23 transitions, 75 flow [2021-03-26 10:30:42,750 INFO L129 PetriNetUnfolder]: 5/35 cut-off events. [2021-03-26 10:30:42,750 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-26 10:30:42,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 35 events. 5/35 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 2 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 59. Up to 12 conditions per place. [2021-03-26 10:30:42,751 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-26 10:30:42,989 INFO L154 LiptonReduction]: Checked pairs total: 342 [2021-03-26 10:30:42,989 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:30:42,989 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 246 [2021-03-26 10:30:42,990 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 71 flow [2021-03-26 10:30:42,991 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 10:30:42,991 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:30:42,991 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:30:42,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:30:42,991 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:30:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:30:42,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1718529364, now seen corresponding path program 1 times [2021-03-26 10:30:42,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:30:42,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926576211] [2021-03-26 10:30:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:30:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:30:43,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:43,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:43,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:43,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:43,062 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 10:30:43,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926576211] [2021-03-26 10:30:43,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:30:43,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:30:43,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652649599] [2021-03-26 10:30:43,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:30:43,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:30:43,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:30:43,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:30:43,065 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 118 [2021-03-26 10:30:43,065 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 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 10:30:43,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:30:43,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 118 [2021-03-26 10:30:43,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:30:43,096 INFO L129 PetriNetUnfolder]: 5/34 cut-off events. [2021-03-26 10:30:43,096 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-03-26 10:30:43,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 34 events. 5/34 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 2 based on Foata normal form. 3/37 useless extension candidates. Maximal degree in co-relation 72. Up to 14 conditions per place. [2021-03-26 10:30:43,097 INFO L132 encePairwiseOnDemand]: 114/118 looper letters, 2 selfloop transitions, 2 changer transitions 2/23 dead transitions. [2021-03-26 10:30:43,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 23 transitions, 89 flow [2021-03-26 10:30:43,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:30:43,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:30:43,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 493 transitions. [2021-03-26 10:30:43,100 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8355932203389831 [2021-03-26 10:30:43,100 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 493 transitions. [2021-03-26 10:30:43,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 493 transitions. [2021-03-26 10:30:43,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:30:43,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 493 transitions. [2021-03-26 10:30:43,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 98.6) internal successors, (493), 5 states have internal predecessors, (493), 0 states have call successors, (0), 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 10:30:43,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 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 10:30:43,104 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 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 10:30:43,104 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 71 flow. Second operand 5 states and 493 transitions. [2021-03-26 10:30:43,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 23 transitions, 89 flow [2021-03-26 10:30:43,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 23 transitions, 84 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:30:43,108 INFO L241 Difference]: Finished difference. Result has 36 places, 21 transitions, 78 flow [2021-03-26 10:30:43,108 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=78, PETRI_PLACES=36, PETRI_TRANSITIONS=21} [2021-03-26 10:30:43,108 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2021-03-26 10:30:43,108 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:30:43,109 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 21 transitions, 78 flow [2021-03-26 10:30:43,110 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 21 transitions, 78 flow [2021-03-26 10:30:43,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 21 transitions, 78 flow [2021-03-26 10:30:43,127 INFO L129 PetriNetUnfolder]: 5/35 cut-off events. [2021-03-26 10:30:43,127 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-03-26 10:30:43,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 35 events. 5/35 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 2 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 67. Up to 12 conditions per place. [2021-03-26 10:30:43,128 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-26 10:30:43,274 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:30:43,528 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:30:43,614 INFO L154 LiptonReduction]: Checked pairs total: 228 [2021-03-26 10:30:43,615 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:30:43,615 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 507 [2021-03-26 10:30:43,616 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 76 flow [2021-03-26 10:30:43,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 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 10:30:43,616 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:30:43,617 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:30:43,617 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:30:43,617 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:30:43,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:30:43,617 INFO L82 PathProgramCache]: Analyzing trace with hash 354468743, now seen corresponding path program 1 times [2021-03-26 10:30:43,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:30:43,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306041732] [2021-03-26 10:30:43,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:30:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:30:43,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:43,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:43,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:43,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:43,706 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:30:43,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:30:43,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:43,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:43,721 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 10:30:43,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306041732] [2021-03-26 10:30:43,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:30:43,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:30:43,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372217019] [2021-03-26 10:30:43,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:30:43,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:30:43,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:30:43,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:30:43,734 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-26 10:30:43,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 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 10:30:43,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:30:43,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-26 10:30:43,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:30:43,808 INFO L129 PetriNetUnfolder]: 28/99 cut-off events. [2021-03-26 10:30:43,809 INFO L130 PetriNetUnfolder]: For 107/121 co-relation queries the response was YES. [2021-03-26 10:30:43,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 99 events. 28/99 cut-off events. For 107/121 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 393 event pairs, 7 based on Foata normal form. 14/109 useless extension candidates. Maximal degree in co-relation 261. Up to 42 conditions per place. [2021-03-26 10:30:43,810 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 7 selfloop transitions, 6 changer transitions 17/40 dead transitions. [2021-03-26 10:30:43,810 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 241 flow [2021-03-26 10:30:43,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 10:30:43,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 10:30:43,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 794 transitions. [2021-03-26 10:30:43,812 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7413632119514473 [2021-03-26 10:30:43,812 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 794 transitions. [2021-03-26 10:30:43,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 794 transitions. [2021-03-26 10:30:43,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:30:43,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 794 transitions. [2021-03-26 10:30:43,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.22222222222223) internal successors, (794), 9 states have internal predecessors, (794), 0 states have call successors, (0), 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 10:30:43,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 119.0) internal successors, (1190), 10 states have internal predecessors, (1190), 0 states have call successors, (0), 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 10:30:43,817 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 119.0) internal successors, (1190), 10 states have internal predecessors, (1190), 0 states have call successors, (0), 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 10:30:43,817 INFO L185 Difference]: Start difference. First operand has 33 places, 20 transitions, 76 flow. Second operand 9 states and 794 transitions. [2021-03-26 10:30:43,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 241 flow [2021-03-26 10:30:43,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 40 transitions, 215 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-26 10:30:43,819 INFO L241 Difference]: Finished difference. Result has 44 places, 20 transitions, 99 flow [2021-03-26 10:30:43,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=99, PETRI_PLACES=44, PETRI_TRANSITIONS=20} [2021-03-26 10:30:43,820 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-26 10:30:43,820 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:30:43,820 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 20 transitions, 99 flow [2021-03-26 10:30:43,820 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 20 transitions, 99 flow [2021-03-26 10:30:43,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 20 transitions, 99 flow [2021-03-26 10:30:43,825 INFO L129 PetriNetUnfolder]: 1/29 cut-off events. [2021-03-26 10:30:43,825 INFO L130 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2021-03-26 10:30:43,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 29 events. 1/29 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 1 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 76. Up to 9 conditions per place. [2021-03-26 10:30:43,826 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-26 10:30:43,894 INFO L154 LiptonReduction]: Checked pairs total: 170 [2021-03-26 10:30:43,894 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:30:43,894 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74 [2021-03-26 10:30:43,895 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 19 transitions, 99 flow [2021-03-26 10:30:43,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 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 10:30:43,895 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:30:43,896 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:30:43,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:30:43,896 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:30:43,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:30:43,896 INFO L82 PathProgramCache]: Analyzing trace with hash -438763370, now seen corresponding path program 1 times [2021-03-26 10:30:43,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:30:43,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944901667] [2021-03-26 10:30:43,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:30:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:30:43,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:43,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:43,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:43,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:43,957 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:30:43,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:30:43,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:43,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:43,974 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 10:30:43,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944901667] [2021-03-26 10:30:43,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:30:43,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:30:43,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804717209] [2021-03-26 10:30:43,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:30:43,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:30:43,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:30:43,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:30:43,977 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 121 [2021-03-26 10:30:43,977 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 19 transitions, 99 flow. Second operand has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 0 states have call successors, (0), 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 10:30:43,977 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:30:43,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 121 [2021-03-26 10:30:43,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:30:44,029 INFO L129 PetriNetUnfolder]: 8/55 cut-off events. [2021-03-26 10:30:44,029 INFO L130 PetriNetUnfolder]: For 188/195 co-relation queries the response was YES. [2021-03-26 10:30:44,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 55 events. 8/55 cut-off events. For 188/195 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 190 event pairs, 2 based on Foata normal form. 8/61 useless extension candidates. Maximal degree in co-relation 175. Up to 18 conditions per place. [2021-03-26 10:30:44,030 INFO L132 encePairwiseOnDemand]: 115/121 looper letters, 5 selfloop transitions, 4 changer transitions 12/30 dead transitions. [2021-03-26 10:30:44,030 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 30 transitions, 233 flow [2021-03-26 10:30:44,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:30:44,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:30:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 603 transitions. [2021-03-26 10:30:44,032 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7119244391971665 [2021-03-26 10:30:44,032 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 603 transitions. [2021-03-26 10:30:44,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 603 transitions. [2021-03-26 10:30:44,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:30:44,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 603 transitions. [2021-03-26 10:30:44,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.14285714285714) internal successors, (603), 7 states have internal predecessors, (603), 0 states have call successors, (0), 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 10:30:44,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 121.0) internal successors, (968), 8 states have internal predecessors, (968), 0 states have call successors, (0), 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 10:30:44,037 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 121.0) internal successors, (968), 8 states have internal predecessors, (968), 0 states have call successors, (0), 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 10:30:44,040 INFO L185 Difference]: Start difference. First operand has 39 places, 19 transitions, 99 flow. Second operand 7 states and 603 transitions. [2021-03-26 10:30:44,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 30 transitions, 233 flow [2021-03-26 10:30:44,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 181 flow, removed 15 selfloop flow, removed 8 redundant places. [2021-03-26 10:30:44,044 INFO L241 Difference]: Finished difference. Result has 41 places, 17 transitions, 82 flow [2021-03-26 10:30:44,045 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=82, PETRI_PLACES=41, PETRI_TRANSITIONS=17} [2021-03-26 10:30:44,045 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 10 predicate places. [2021-03-26 10:30:44,045 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:30:44,045 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 17 transitions, 82 flow [2021-03-26 10:30:44,045 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 17 transitions, 82 flow [2021-03-26 10:30:44,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 17 transitions, 82 flow [2021-03-26 10:30:44,049 INFO L129 PetriNetUnfolder]: 1/21 cut-off events. [2021-03-26 10:30:44,049 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-26 10:30:44,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 21 events. 1/21 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 1 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 53. Up to 6 conditions per place. [2021-03-26 10:30:44,050 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 10:30:44,084 INFO L154 LiptonReduction]: Checked pairs total: 58 [2021-03-26 10:30:44,084 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:30:44,084 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-26 10:30:44,088 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 16 transitions, 80 flow [2021-03-26 10:30:44,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 0 states have call successors, (0), 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 10:30:44,089 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:30:44,089 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:30:44,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:30:44,089 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:30:44,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:30:44,090 INFO L82 PathProgramCache]: Analyzing trace with hash -767434366, now seen corresponding path program 1 times [2021-03-26 10:30:44,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:30:44,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413106560] [2021-03-26 10:30:44,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:30:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:30:44,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:44,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:44,154 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:30:44,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:30:44,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:44,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:30:44,161 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 10:30:44,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413106560] [2021-03-26 10:30:44,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:30:44,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:30:44,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557842420] [2021-03-26 10:30:44,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:30:44,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:30:44,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:30:44,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:30:44,163 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 122 [2021-03-26 10:30:44,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 16 transitions, 80 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 10:30:44,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:30:44,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 122 [2021-03-26 10:30:44,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:30:44,207 INFO L129 PetriNetUnfolder]: 26/73 cut-off events. [2021-03-26 10:30:44,207 INFO L130 PetriNetUnfolder]: For 200/212 co-relation queries the response was YES. [2021-03-26 10:30:44,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 73 events. 26/73 cut-off events. For 200/212 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 246 event pairs, 12 based on Foata normal form. 5/73 useless extension candidates. Maximal degree in co-relation 194. Up to 39 conditions per place. [2021-03-26 10:30:44,209 INFO L132 encePairwiseOnDemand]: 116/122 looper letters, 5 selfloop transitions, 3 changer transitions 8/26 dead transitions. [2021-03-26 10:30:44,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 26 transitions, 132 flow [2021-03-26 10:30:44,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:30:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:30:44,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 468 transitions. [2021-03-26 10:30:44,211 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7672131147540984 [2021-03-26 10:30:44,211 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 468 transitions. [2021-03-26 10:30:44,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 468 transitions. [2021-03-26 10:30:44,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:30:44,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 468 transitions. [2021-03-26 10:30:44,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.6) internal successors, (468), 5 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 10:30:44,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:30:44,214 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:30:44,214 INFO L185 Difference]: Start difference. First operand has 38 places, 16 transitions, 80 flow. Second operand 5 states and 468 transitions. [2021-03-26 10:30:44,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 26 transitions, 132 flow [2021-03-26 10:30:44,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 26 transitions, 113 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-26 10:30:44,216 INFO L241 Difference]: Finished difference. Result has 38 places, 18 transitions, 92 flow [2021-03-26 10:30:44,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=92, PETRI_PLACES=38, PETRI_TRANSITIONS=18} [2021-03-26 10:30:44,216 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-26 10:30:44,217 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:30:44,217 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 18 transitions, 92 flow [2021-03-26 10:30:44,217 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 18 transitions, 92 flow [2021-03-26 10:30:44,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 18 transitions, 92 flow [2021-03-26 10:30:44,222 INFO L129 PetriNetUnfolder]: 18/55 cut-off events. [2021-03-26 10:30:44,222 INFO L130 PetriNetUnfolder]: For 70/81 co-relation queries the response was YES. [2021-03-26 10:30:44,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 55 events. 18/55 cut-off events. For 70/81 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 156 event pairs, 11 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 162. Up to 35 conditions per place. [2021-03-26 10:30:44,224 INFO L142 LiptonReduction]: Number of co-enabled transitions 62 [2021-03-26 10:30:44,270 INFO L154 LiptonReduction]: Checked pairs total: 7 [2021-03-26 10:30:44,271 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:30:44,271 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-26 10:30:44,273 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 18 transitions, 94 flow [2021-03-26 10:30:44,273 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 10:30:44,273 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:30:44,273 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:30:44,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:30:44,273 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:30:44,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:30:44,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1024542965, now seen corresponding path program 1 times [2021-03-26 10:30:44,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:30:44,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135187611] [2021-03-26 10:30:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:30:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:30:44,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:44,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:44,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:44,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:44,344 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:30:44,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:30:44,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:44,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:30:44,353 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 10:30:44,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135187611] [2021-03-26 10:30:44,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:30:44,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:30:44,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836299574] [2021-03-26 10:30:44,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:30:44,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:30:44,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:30:44,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:30:44,356 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 123 [2021-03-26 10:30:44,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 18 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 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 10:30:44,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:30:44,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2021-03-26 10:30:44,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:30:44,397 INFO L129 PetriNetUnfolder]: 10/44 cut-off events. [2021-03-26 10:30:44,397 INFO L130 PetriNetUnfolder]: For 103/143 co-relation queries the response was YES. [2021-03-26 10:30:44,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 44 events. 10/44 cut-off events. For 103/143 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 121 event pairs, 2 based on Foata normal form. 7/48 useless extension candidates. Maximal degree in co-relation 150. Up to 27 conditions per place. [2021-03-26 10:30:44,398 INFO L132 encePairwiseOnDemand]: 116/123 looper letters, 3 selfloop transitions, 5 changer transitions 10/28 dead transitions. [2021-03-26 10:30:44,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 188 flow [2021-03-26 10:30:44,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:30:44,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:30:44,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 560 transitions. [2021-03-26 10:30:44,400 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7588075880758808 [2021-03-26 10:30:44,400 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 560 transitions. [2021-03-26 10:30:44,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 560 transitions. [2021-03-26 10:30:44,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:30:44,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 560 transitions. [2021-03-26 10:30:44,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 0 states have call successors, (0), 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 10:30:44,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 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 10:30:44,405 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 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 10:30:44,405 INFO L185 Difference]: Start difference. First operand has 36 places, 18 transitions, 94 flow. Second operand 6 states and 560 transitions. [2021-03-26 10:30:44,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 188 flow [2021-03-26 10:30:44,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 28 transitions, 183 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:30:44,407 INFO L241 Difference]: Finished difference. Result has 42 places, 18 transitions, 113 flow [2021-03-26 10:30:44,407 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=113, PETRI_PLACES=42, PETRI_TRANSITIONS=18} [2021-03-26 10:30:44,407 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 11 predicate places. [2021-03-26 10:30:44,407 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:30:44,407 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 18 transitions, 113 flow [2021-03-26 10:30:44,408 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 18 transitions, 113 flow [2021-03-26 10:30:44,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 18 transitions, 113 flow [2021-03-26 10:30:44,411 INFO L129 PetriNetUnfolder]: 3/28 cut-off events. [2021-03-26 10:30:44,411 INFO L130 PetriNetUnfolder]: For 69/75 co-relation queries the response was YES. [2021-03-26 10:30:44,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 28 events. 3/28 cut-off events. For 69/75 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 2 based on Foata normal form. 2/29 useless extension candidates. Maximal degree in co-relation 94. Up to 11 conditions per place. [2021-03-26 10:30:44,413 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-26 10:30:44,540 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-26 10:30:44,540 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:30:44,540 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 133 [2021-03-26 10:30:44,545 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 17 transitions, 113 flow [2021-03-26 10:30:44,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 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 10:30:44,546 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:30:44,546 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:30:44,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:30:44,546 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:30:44,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:30:44,547 INFO L82 PathProgramCache]: Analyzing trace with hash -353791220, now seen corresponding path program 1 times [2021-03-26 10:30:44,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:30:44,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360404710] [2021-03-26 10:30:44,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:30:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:30:44,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:44,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:44,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:44,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:44,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:44,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:30:44,604 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:30:44,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:30:44,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:30:44,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:30:44,612 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 10:30:44,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360404710] [2021-03-26 10:30:44,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:30:44,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:30:44,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161419953] [2021-03-26 10:30:44,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:30:44,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:30:44,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:30:44,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:30:44,615 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 125 [2021-03-26 10:30:44,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 17 transitions, 113 flow. Second operand has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 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 10:30:44,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:30:44,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 125 [2021-03-26 10:30:44,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:30:44,636 INFO L129 PetriNetUnfolder]: 1/20 cut-off events. [2021-03-26 10:30:44,637 INFO L130 PetriNetUnfolder]: For 91/103 co-relation queries the response was YES. [2021-03-26 10:30:44,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 20 events. 1/20 cut-off events. For 91/103 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 4/21 useless extension candidates. Maximal degree in co-relation 72. Up to 6 conditions per place. [2021-03-26 10:30:44,637 INFO L132 encePairwiseOnDemand]: 118/125 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2021-03-26 10:30:44,637 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 15 transitions, 103 flow [2021-03-26 10:30:44,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:30:44,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:30:44,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 457 transitions. [2021-03-26 10:30:44,639 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7312 [2021-03-26 10:30:44,639 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 457 transitions. [2021-03-26 10:30:44,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 457 transitions. [2021-03-26 10:30:44,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:30:44,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 457 transitions. [2021-03-26 10:30:44,640 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 10:30:44,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 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 10:30:44,642 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 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 10:30:44,642 INFO L185 Difference]: Start difference. First operand has 39 places, 17 transitions, 113 flow. Second operand 5 states and 457 transitions. [2021-03-26 10:30:44,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 15 transitions, 103 flow [2021-03-26 10:30:44,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 15 transitions, 75 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-03-26 10:30:44,643 INFO L241 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2021-03-26 10:30:44,643 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2021-03-26 10:30:44,643 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2021-03-26 10:30:44,643 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:30:44,643 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 0 transitions, 0 flow [2021-03-26 10:30:44,644 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 0 transitions, 0 flow [2021-03-26 10:30:44,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:30:44,644 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:30:44,644 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:30:44,644 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 10:30:44,644 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:30:44,644 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:30:44,644 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:30:44,644 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 10:30:44,645 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:30:44,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 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 10:30:44,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:30:44,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:30:44 BasicIcfg [2021-03-26 10:30:44,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:30:44,650 INFO L168 Benchmark]: Toolchain (without parser) took 5024.84 ms. Allocated memory was 255.9 MB in the beginning and 474.0 MB in the end (delta: 218.1 MB). Free memory was 234.4 MB in the beginning and 249.2 MB in the end (delta: -14.8 MB). Peak memory consumption was 202.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:30:44,650 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:30:44,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.60 ms. Allocated memory was 255.9 MB in the beginning and 394.3 MB in the end (delta: 138.4 MB). Free memory was 233.9 MB in the beginning and 356.6 MB in the end (delta: -122.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:30:44,651 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.72 ms. Allocated memory is still 394.3 MB. Free memory was 356.1 MB in the beginning and 354.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:30:44,651 INFO L168 Benchmark]: Boogie Preprocessor took 33.97 ms. Allocated memory is still 394.3 MB. Free memory was 354.5 MB in the beginning and 352.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:30:44,651 INFO L168 Benchmark]: RCFGBuilder took 408.98 ms. Allocated memory is still 394.3 MB. Free memory was 352.9 MB in the beginning and 330.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:30:44,652 INFO L168 Benchmark]: TraceAbstraction took 4073.30 ms. Allocated memory was 394.3 MB in the beginning and 474.0 MB in the end (delta: 79.7 MB). Free memory was 330.4 MB in the beginning and 249.2 MB in the end (delta: 81.3 MB). Peak memory consumption was 161.9 MB. Max. memory is 16.0 GB. [2021-03-26 10:30:44,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 439.60 ms. Allocated memory was 255.9 MB in the beginning and 394.3 MB in the end (delta: 138.4 MB). Free memory was 233.9 MB in the beginning and 356.6 MB in the end (delta: -122.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 63.72 ms. Allocated memory is still 394.3 MB. Free memory was 356.1 MB in the beginning and 354.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.97 ms. Allocated memory is still 394.3 MB. Free memory was 354.5 MB in the beginning and 352.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 408.98 ms. Allocated memory is still 394.3 MB. Free memory was 352.9 MB in the beginning and 330.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4073.30 ms. Allocated memory was 394.3 MB in the beginning and 474.0 MB in the end (delta: 79.7 MB). Free memory was 330.4 MB in the beginning and 249.2 MB in the end (delta: 81.3 MB). Peak memory consumption was 161.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1582.0ms, 69 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1328 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 860, positive: 813, positive conditional: 813, positive unconditional: 0, negative: 47, negative conditional: 47, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 860, positive: 813, positive conditional: 0, positive unconditional: 813, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 860, positive: 813, positive conditional: 0, positive unconditional: 813, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 668, positive: 638, positive conditional: 0, positive unconditional: 638, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 668, positive: 632, positive conditional: 0, positive unconditional: 632, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 145, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 115, negative conditional: 0, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 860, positive: 175, positive conditional: 0, positive unconditional: 175, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 668, Positive cache size: 638, Positive conditional cache size: 0, Positive unconditional cache size: 638, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 245.7ms, 35 PlacesBefore, 31 PlacesAfterwards, 23 TransitionsBefore, 21 TransitionsAfterwards, 150 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 342 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 182, positive: 152, positive conditional: 152, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 182, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 182, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 182, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 24, unknown conditional: 0, unknown unconditional: 24] , Statistics on independence cache: Total cache size (in pairs): 692, Positive cache size: 659, Positive conditional cache size: 0, Positive unconditional cache size: 659, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 504.9ms, 36 PlacesBefore, 33 PlacesAfterwards, 21 TransitionsBefore, 20 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 228 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 86, positive: 66, positive conditional: 66, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 86, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 86, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 86, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 697, Positive cache size: 664, Positive conditional cache size: 0, Positive unconditional cache size: 664, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 73.7ms, 44 PlacesBefore, 39 PlacesAfterwards, 20 TransitionsBefore, 19 TransitionsAfterwards, 118 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 170 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 101, positive: 86, positive conditional: 86, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 101, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 101, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 26, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 26, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 101, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 26, unknown conditional: 0, unknown unconditional: 26] , Statistics on independence cache: Total cache size (in pairs): 723, Positive cache size: 688, Positive conditional cache size: 0, Positive unconditional cache size: 688, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Eliminated conditions: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.6ms, 41 PlacesBefore, 38 PlacesAfterwards, 17 TransitionsBefore, 16 TransitionsAfterwards, 74 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 58 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 31, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 31, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 31, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 727, Positive cache size: 692, Positive conditional cache size: 0, Positive unconditional cache size: 692, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.7ms, 38 PlacesBefore, 36 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 62 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 7 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 7, 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): 727, Positive cache size: 692, Positive conditional cache size: 0, Positive unconditional cache size: 692, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 132.6ms, 42 PlacesBefore, 39 PlacesAfterwards, 18 TransitionsBefore, 17 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 6, 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: 6, positive: 6, positive conditional: 4, positive unconditional: 2, 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: 6, positive: 6, positive conditional: 4, positive unconditional: 2, 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: 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: 6, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 729, Positive cache size: 694, Positive conditional cache size: 0, Positive unconditional cache size: 694, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 33 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): 729, Positive cache size: 694, Positive conditional cache size: 0, Positive unconditional cache size: 694, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, 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, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3973.3ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 471.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1674.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 44 SDtfs, 54 SDslu, 55 SDs, 0 SdLazy, 120 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 99.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 153.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=6, InterpolantAutomatonStates: 42, 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: 20.2ms SsaConstructionTime, 160.4ms SatisfiabilityAnalysisTime, 405.4ms InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 296 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...