/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/safe014_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:33:01,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:33:01,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:33:01,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:33:01,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:33:01,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:33:01,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:33:01,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:33:01,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:33:01,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:33:01,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:33:01,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:33:01,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:33:01,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:33:01,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:33:01,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:33:01,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:33:01,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:33:01,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:33:01,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:33:01,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:33:01,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:33:01,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:33:01,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:33:01,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:33:01,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:33:01,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:33:01,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:33:01,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:33:01,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:33:01,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:33:01,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:33:01,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:33:01,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:33:01,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:33:01,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:33:01,825 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 10:33:01,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:33:01,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:33:01,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:33:01,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:33:01,855 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:33:01,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:33:01,855 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:33:01,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:33:01,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:33:01,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:33:01,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:33:01,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:33:01,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:33:01,857 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:33:01,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:33:01,857 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:33:01,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:33:01,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:33:01,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:33:01,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:33:01,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:33:01,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:33:01,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:33:01,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:33:01,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:33:01,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:33:01,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:33:01,859 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:33:01,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:33:01,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:33:01,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:33:02,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:33:02,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:33:02,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:33:02,107 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:33:02,107 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:33:02,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i [2021-03-26 10:33:02,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5586681/2e325d2177994f65a10a8373b52a2a72/FLAG68d7ea483 [2021-03-26 10:33:02,492 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:33:02,493 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i [2021-03-26 10:33:02,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5586681/2e325d2177994f65a10a8373b52a2a72/FLAG68d7ea483 [2021-03-26 10:33:02,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5586681/2e325d2177994f65a10a8373b52a2a72 [2021-03-26 10:33:02,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:33:02,881 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:33:02,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:33:02,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:33:02,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:33:02,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:33:02" (1/1) ... [2021-03-26 10:33:02,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bbd3cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:02, skipping insertion in model container [2021-03-26 10:33:02,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:33:02" (1/1) ... [2021-03-26 10:33:02,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:33:02,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:33:03,002 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/safe014_tso.opt.i[949,962] [2021-03-26 10:33:03,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:33:03,152 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:33:03,161 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/safe014_tso.opt.i[949,962] [2021-03-26 10:33:03,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:33:03,229 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:33:03,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03 WrapperNode [2021-03-26 10:33:03,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:33:03,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:33:03,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:33:03,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:33:03,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03" (1/1) ... [2021-03-26 10:33:03,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03" (1/1) ... [2021-03-26 10:33:03,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:33:03,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:33:03,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:33:03,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:33:03,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03" (1/1) ... [2021-03-26 10:33:03,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03" (1/1) ... [2021-03-26 10:33:03,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03" (1/1) ... [2021-03-26 10:33:03,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03" (1/1) ... [2021-03-26 10:33:03,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03" (1/1) ... [2021-03-26 10:33:03,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03" (1/1) ... [2021-03-26 10:33:03,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03" (1/1) ... [2021-03-26 10:33:03,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:33:03,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:33:03,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:33:03,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:33:03,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03" (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 10:33:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:33:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:33:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:33:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:33:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:33:03,361 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:33:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:33:03,361 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:33:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:33:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:33:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:33:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:33:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:33:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:33:03,363 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:33:03,684 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:33:03,684 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:33:03,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:33:03 BoogieIcfgContainer [2021-03-26 10:33:03,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:33:03,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:33:03,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:33:03,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:33:03,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:33:02" (1/3) ... [2021-03-26 10:33:03,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d5aea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:33:03, skipping insertion in model container [2021-03-26 10:33:03,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:03" (2/3) ... [2021-03-26 10:33:03,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d5aea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:33:03, skipping insertion in model container [2021-03-26 10:33:03,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:33:03" (3/3) ... [2021-03-26 10:33:03,691 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_tso.opt.i [2021-03-26 10:33:03,696 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:33:03,699 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:33:03,700 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:33:03,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,725 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,725 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,726 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,726 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,727 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,727 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,727 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,728 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,730 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,730 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,731 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,731 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,733 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,733 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,733 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,733 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,735 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,735 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,739 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,739 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,743 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,744 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:03,748 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:33:03,760 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:33:03,784 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:33:03,784 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:33:03,784 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:33:03,784 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:33:03,784 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:33:03,785 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:33:03,785 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:33:03,785 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:33:03,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:33:03,835 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-26 10:33:03,835 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:33:03,839 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 10:33:03,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:33:03,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-26 10:33:03,851 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:03,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:33:03,864 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:33:03,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-26 10:33:03,883 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-26 10:33:03,883 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:33:03,884 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 10:33:03,886 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 10:33:05,351 INFO L154 LiptonReduction]: Checked pairs total: 1328 [2021-03-26 10:33:05,351 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-26 10:33:05,353 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1502 [2021-03-26 10:33:05,359 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 10:33:05,359 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:33:05,359 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:05,359 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:05,360 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:05,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:05,363 INFO L82 PathProgramCache]: Analyzing trace with hash -864788976, now seen corresponding path program 1 times [2021-03-26 10:33:05,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:05,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92826658] [2021-03-26 10:33:05,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:05,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:05,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:05,561 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:33:05,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:33:05,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:05,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:05,585 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 10:33:05,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92826658] [2021-03-26 10:33:05,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:05,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:33:05,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050624960] [2021-03-26 10:33:05,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:33:05,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:05,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:33:05,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:33:05,605 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-26 10:33:05,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 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 10:33:05,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:05,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-26 10:33:05,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:05,695 INFO L129 PetriNetUnfolder]: 78/208 cut-off events. [2021-03-26 10:33:05,695 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:33:05,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 208 events. 78/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1017 event pairs, 4 based on Foata normal form. 23/218 useless extension candidates. Maximal degree in co-relation 358. Up to 58 conditions per place. [2021-03-26 10:33:05,697 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 12 selfloop transitions, 6 changer transitions 15/45 dead transitions. [2021-03-26 10:33:05,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 45 transitions, 165 flow [2021-03-26 10:33:05,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:33:05,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:33:05,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 617 transitions. [2021-03-26 10:33:05,707 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7598522167487685 [2021-03-26 10:33:05,707 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 617 transitions. [2021-03-26 10:33:05,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 617 transitions. [2021-03-26 10:33:05,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:05,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 617 transitions. [2021-03-26 10:33:05,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.14285714285714) internal successors, (617), 7 states have internal predecessors, (617), 0 states have call successors, (0), 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 10:33:05,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:05,718 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:05,719 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 7 states and 617 transitions. [2021-03-26 10:33:05,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 45 transitions, 165 flow [2021-03-26 10:33:05,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 45 transitions, 162 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:33:05,722 INFO L241 Difference]: Finished difference. Result has 40 places, 25 transitions, 106 flow [2021-03-26 10:33:05,723 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=106, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2021-03-26 10:33:05,723 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-26 10:33:05,723 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:05,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 25 transitions, 106 flow [2021-03-26 10:33:05,724 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 25 transitions, 106 flow [2021-03-26 10:33:05,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 106 flow [2021-03-26 10:33:05,731 INFO L129 PetriNetUnfolder]: 36/118 cut-off events. [2021-03-26 10:33:05,731 INFO L130 PetriNetUnfolder]: For 79/88 co-relation queries the response was YES. [2021-03-26 10:33:05,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 118 events. 36/118 cut-off events. For 79/88 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 512 event pairs, 11 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 289. Up to 42 conditions per place. [2021-03-26 10:33:05,733 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-26 10:33:06,157 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:33:06,354 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:33:06,413 INFO L154 LiptonReduction]: Checked pairs total: 78 [2021-03-26 10:33:06,413 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 10:33:06,413 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 690 [2021-03-26 10:33:06,414 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 100 flow [2021-03-26 10:33:06,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 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 10:33:06,414 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:06,414 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:06,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:33:06,415 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:06,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:06,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1039221852, now seen corresponding path program 1 times [2021-03-26 10:33:06,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:06,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249268085] [2021-03-26 10:33:06,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:06,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,459 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:33:06,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:33:06,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,469 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 10:33:06,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249268085] [2021-03-26 10:33:06,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:06,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:33:06,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975333165] [2021-03-26 10:33:06,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:33:06,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:06,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:33:06,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:33:06,473 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 119 [2021-03-26 10:33:06,473 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 0 states have call successors, (0), 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 10:33:06,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:06,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 119 [2021-03-26 10:33:06,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:06,526 INFO L129 PetriNetUnfolder]: 44/140 cut-off events. [2021-03-26 10:33:06,526 INFO L130 PetriNetUnfolder]: For 226/296 co-relation queries the response was YES. [2021-03-26 10:33:06,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 140 events. 44/140 cut-off events. For 226/296 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 624 event pairs, 1 based on Foata normal form. 14/150 useless extension candidates. Maximal degree in co-relation 452. Up to 44 conditions per place. [2021-03-26 10:33:06,528 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 12 selfloop transitions, 10 changer transitions 12/44 dead transitions. [2021-03-26 10:33:06,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 44 transitions, 302 flow [2021-03-26 10:33:06,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:33:06,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:33:06,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 617 transitions. [2021-03-26 10:33:06,530 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7406962785114045 [2021-03-26 10:33:06,531 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 617 transitions. [2021-03-26 10:33:06,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 617 transitions. [2021-03-26 10:33:06,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:06,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 617 transitions. [2021-03-26 10:33:06,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.14285714285714) internal successors, (617), 7 states have internal predecessors, (617), 0 states have call successors, (0), 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 10:33:06,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:06,534 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:06,534 INFO L185 Difference]: Start difference. First operand has 34 places, 22 transitions, 100 flow. Second operand 7 states and 617 transitions. [2021-03-26 10:33:06,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 44 transitions, 302 flow [2021-03-26 10:33:06,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 44 transitions, 294 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 10:33:06,536 INFO L241 Difference]: Finished difference. Result has 44 places, 28 transitions, 195 flow [2021-03-26 10:33:06,536 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=195, PETRI_PLACES=44, PETRI_TRANSITIONS=28} [2021-03-26 10:33:06,536 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-26 10:33:06,537 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:06,537 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 28 transitions, 195 flow [2021-03-26 10:33:06,537 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 28 transitions, 195 flow [2021-03-26 10:33:06,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 28 transitions, 195 flow [2021-03-26 10:33:06,544 INFO L129 PetriNetUnfolder]: 30/101 cut-off events. [2021-03-26 10:33:06,544 INFO L130 PetriNetUnfolder]: For 230/249 co-relation queries the response was YES. [2021-03-26 10:33:06,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 101 events. 30/101 cut-off events. For 230/249 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 427 event pairs, 1 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 358. Up to 31 conditions per place. [2021-03-26 10:33:06,546 INFO L142 LiptonReduction]: Number of co-enabled transitions 184 [2021-03-26 10:33:06,554 INFO L154 LiptonReduction]: Checked pairs total: 86 [2021-03-26 10:33:06,554 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:33:06,554 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-26 10:33:06,555 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 195 flow [2021-03-26 10:33:06,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 0 states have call successors, (0), 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 10:33:06,556 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:06,556 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:06,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:33:06,556 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:06,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:06,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1397963691, now seen corresponding path program 1 times [2021-03-26 10:33:06,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:06,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537306465] [2021-03-26 10:33:06,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:06,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,603 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:33:06,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:33:06,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,617 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 10:33:06,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537306465] [2021-03-26 10:33:06,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:06,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:33:06,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176297165] [2021-03-26 10:33:06,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:33:06,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:06,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:33:06,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:33:06,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 119 [2021-03-26 10:33:06,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 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 10:33:06,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:06,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 119 [2021-03-26 10:33:06,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:06,673 INFO L129 PetriNetUnfolder]: 76/204 cut-off events. [2021-03-26 10:33:06,674 INFO L130 PetriNetUnfolder]: For 875/973 co-relation queries the response was YES. [2021-03-26 10:33:06,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 874 conditions, 204 events. 76/204 cut-off events. For 875/973 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 959 event pairs, 5 based on Foata normal form. 21/221 useless extension candidates. Maximal degree in co-relation 853. Up to 61 conditions per place. [2021-03-26 10:33:06,677 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 14 selfloop transitions, 7 changer transitions 30/60 dead transitions. [2021-03-26 10:33:06,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 60 transitions, 583 flow [2021-03-26 10:33:06,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:33:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:33:06,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 605 transitions. [2021-03-26 10:33:06,679 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7262905162064826 [2021-03-26 10:33:06,679 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 605 transitions. [2021-03-26 10:33:06,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 605 transitions. [2021-03-26 10:33:06,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:06,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 605 transitions. [2021-03-26 10:33:06,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.42857142857143) internal successors, (605), 7 states have internal predecessors, (605), 0 states have call successors, (0), 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 10:33:06,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:06,681 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:06,682 INFO L185 Difference]: Start difference. First operand has 41 places, 28 transitions, 195 flow. Second operand 7 states and 605 transitions. [2021-03-26 10:33:06,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 60 transitions, 583 flow [2021-03-26 10:33:06,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 60 transitions, 566 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-03-26 10:33:06,687 INFO L241 Difference]: Finished difference. Result has 49 places, 24 transitions, 174 flow [2021-03-26 10:33:06,687 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=49, PETRI_TRANSITIONS=24} [2021-03-26 10:33:06,688 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 18 predicate places. [2021-03-26 10:33:06,688 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:06,688 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 24 transitions, 174 flow [2021-03-26 10:33:06,688 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 24 transitions, 174 flow [2021-03-26 10:33:06,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 24 transitions, 174 flow [2021-03-26 10:33:06,694 INFO L129 PetriNetUnfolder]: 15/63 cut-off events. [2021-03-26 10:33:06,694 INFO L130 PetriNetUnfolder]: For 168/170 co-relation queries the response was YES. [2021-03-26 10:33:06,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 63 events. 15/63 cut-off events. For 168/170 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 198 event pairs, 3 based on Foata normal form. 2/63 useless extension candidates. Maximal degree in co-relation 246. Up to 19 conditions per place. [2021-03-26 10:33:06,695 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 10:33:06,715 INFO L154 LiptonReduction]: Checked pairs total: 70 [2021-03-26 10:33:06,715 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:33:06,715 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-26 10:33:06,716 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 23 transitions, 172 flow [2021-03-26 10:33:06,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 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 10:33:06,716 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:06,716 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:06,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:33:06,716 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:06,717 INFO L82 PathProgramCache]: Analyzing trace with hash 712987233, now seen corresponding path program 1 times [2021-03-26 10:33:06,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:06,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417346113] [2021-03-26 10:33:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:06,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,745 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:33:06,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:33:06,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,756 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 10:33:06,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417346113] [2021-03-26 10:33:06,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:06,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:33:06,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109885257] [2021-03-26 10:33:06,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:33:06,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:06,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:33:06,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:33:06,757 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 120 [2021-03-26 10:33:06,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 23 transitions, 172 flow. Second operand has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 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 10:33:06,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:06,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 120 [2021-03-26 10:33:06,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:06,798 INFO L129 PetriNetUnfolder]: 17/81 cut-off events. [2021-03-26 10:33:06,798 INFO L130 PetriNetUnfolder]: For 338/340 co-relation queries the response was YES. [2021-03-26 10:33:06,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 81 events. 17/81 cut-off events. For 338/340 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 327 event pairs, 2 based on Foata normal form. 8/89 useless extension candidates. Maximal degree in co-relation 387. Up to 28 conditions per place. [2021-03-26 10:33:06,798 INFO L132 encePairwiseOnDemand]: 113/120 looper letters, 6 selfloop transitions, 5 changer transitions 20/40 dead transitions. [2021-03-26 10:33:06,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 40 transitions, 419 flow [2021-03-26 10:33:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:33:06,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:33:06,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 612 transitions. [2021-03-26 10:33:06,800 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2021-03-26 10:33:06,800 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 612 transitions. [2021-03-26 10:33:06,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 612 transitions. [2021-03-26 10:33:06,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:06,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 612 transitions. [2021-03-26 10:33:06,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.42857142857143) internal successors, (612), 7 states have internal predecessors, (612), 0 states have call successors, (0), 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 10:33:06,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 0 states have call successors, (0), 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 10:33:06,802 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 0 states have call successors, (0), 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 10:33:06,802 INFO L185 Difference]: Start difference. First operand has 46 places, 23 transitions, 172 flow. Second operand 7 states and 612 transitions. [2021-03-26 10:33:06,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 40 transitions, 419 flow [2021-03-26 10:33:06,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 332 flow, removed 21 selfloop flow, removed 11 redundant places. [2021-03-26 10:33:06,804 INFO L241 Difference]: Finished difference. Result has 45 places, 18 transitions, 112 flow [2021-03-26 10:33:06,804 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=112, PETRI_PLACES=45, PETRI_TRANSITIONS=18} [2021-03-26 10:33:06,804 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 14 predicate places. [2021-03-26 10:33:06,804 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:06,804 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 18 transitions, 112 flow [2021-03-26 10:33:06,805 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 18 transitions, 112 flow [2021-03-26 10:33:06,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 18 transitions, 112 flow [2021-03-26 10:33:06,807 INFO L129 PetriNetUnfolder]: 5/42 cut-off events. [2021-03-26 10:33:06,807 INFO L130 PetriNetUnfolder]: For 90/91 co-relation queries the response was YES. [2021-03-26 10:33:06,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 42 events. 5/42 cut-off events. For 90/91 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 109 event pairs, 5 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 139. Up to 13 conditions per place. [2021-03-26 10:33:06,808 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-26 10:33:06,809 INFO L154 LiptonReduction]: Checked pairs total: 25 [2021-03-26 10:33:06,809 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:33:06,809 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-26 10:33:06,809 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 18 transitions, 112 flow [2021-03-26 10:33:06,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 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 10:33:06,810 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:06,810 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:06,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:33:06,810 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:06,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:06,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1027188431, now seen corresponding path program 1 times [2021-03-26 10:33:06,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:06,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816745418] [2021-03-26 10:33:06,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:06,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:33:06,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,834 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:33:06,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:33:06,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,843 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 10:33:06,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816745418] [2021-03-26 10:33:06,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:06,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:33:06,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259978454] [2021-03-26 10:33:06,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:33:06,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:06,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:33:06,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:33:06,844 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 120 [2021-03-26 10:33:06,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 18 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:06,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:06,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 120 [2021-03-26 10:33:06,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:06,874 INFO L129 PetriNetUnfolder]: 3/43 cut-off events. [2021-03-26 10:33:06,874 INFO L130 PetriNetUnfolder]: For 158/160 co-relation queries the response was YES. [2021-03-26 10:33:06,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 43 events. 3/43 cut-off events. For 158/160 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 119 event pairs, 0 based on Foata normal form. 6/49 useless extension candidates. Maximal degree in co-relation 165. Up to 12 conditions per place. [2021-03-26 10:33:06,875 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 8 selfloop transitions, 5 changer transitions 5/27 dead transitions. [2021-03-26 10:33:06,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 27 transitions, 243 flow [2021-03-26 10:33:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:33:06,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:33:06,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 607 transitions. [2021-03-26 10:33:06,876 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7226190476190476 [2021-03-26 10:33:06,876 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 607 transitions. [2021-03-26 10:33:06,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 607 transitions. [2021-03-26 10:33:06,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:06,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 607 transitions. [2021-03-26 10:33:06,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.71428571428571) internal successors, (607), 7 states have internal predecessors, (607), 0 states have call successors, (0), 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 10:33:06,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 0 states have call successors, (0), 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 10:33:06,878 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 0 states have call successors, (0), 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 10:33:06,878 INFO L185 Difference]: Start difference. First operand has 43 places, 18 transitions, 112 flow. Second operand 7 states and 607 transitions. [2021-03-26 10:33:06,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 27 transitions, 243 flow [2021-03-26 10:33:06,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 27 transitions, 157 flow, removed 11 selfloop flow, removed 13 redundant places. [2021-03-26 10:33:06,879 INFO L241 Difference]: Finished difference. Result has 41 places, 19 transitions, 104 flow [2021-03-26 10:33:06,880 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=104, PETRI_PLACES=41, PETRI_TRANSITIONS=19} [2021-03-26 10:33:06,880 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 10 predicate places. [2021-03-26 10:33:06,880 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:06,880 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 19 transitions, 104 flow [2021-03-26 10:33:06,880 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 19 transitions, 104 flow [2021-03-26 10:33:06,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 19 transitions, 104 flow [2021-03-26 10:33:06,882 INFO L129 PetriNetUnfolder]: 2/30 cut-off events. [2021-03-26 10:33:06,882 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-03-26 10:33:06,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 30 events. 2/30 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 2 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 86. Up to 9 conditions per place. [2021-03-26 10:33:06,883 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 10:33:06,946 INFO L154 LiptonReduction]: Checked pairs total: 64 [2021-03-26 10:33:06,947 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:33:06,947 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-26 10:33:06,947 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 18 transitions, 105 flow [2021-03-26 10:33:06,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:06,948 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:06,948 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:06,948 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:33:06,948 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:06,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:06,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1023642553, now seen corresponding path program 1 times [2021-03-26 10:33:06,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:06,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267293443] [2021-03-26 10:33:06,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:06,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:33:06,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:06,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:06,998 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:33:06,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:33:07,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:07,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:07,008 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 10:33:07,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267293443] [2021-03-26 10:33:07,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:07,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:33:07,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987428196] [2021-03-26 10:33:07,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:33:07,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:07,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:33:07,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:33:07,010 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2021-03-26 10:33:07,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 18 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 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 10:33:07,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:07,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2021-03-26 10:33:07,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:07,037 INFO L129 PetriNetUnfolder]: 1/32 cut-off events. [2021-03-26 10:33:07,037 INFO L130 PetriNetUnfolder]: For 79/82 co-relation queries the response was YES. [2021-03-26 10:33:07,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 32 events. 1/32 cut-off events. For 79/82 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 78 event pairs, 0 based on Foata normal form. 3/35 useless extension candidates. Maximal degree in co-relation 104. Up to 9 conditions per place. [2021-03-26 10:33:07,055 INFO L132 encePairwiseOnDemand]: 116/122 looper letters, 3 selfloop transitions, 4 changer transitions 7/23 dead transitions. [2021-03-26 10:33:07,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 23 transitions, 173 flow [2021-03-26 10:33:07,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:33:07,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:33:07,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 518 transitions. [2021-03-26 10:33:07,056 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7076502732240437 [2021-03-26 10:33:07,056 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 518 transitions. [2021-03-26 10:33:07,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 518 transitions. [2021-03-26 10:33:07,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:07,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 518 transitions. [2021-03-26 10:33:07,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.33333333333333) internal successors, (518), 6 states have internal predecessors, (518), 0 states have call successors, (0), 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 10:33:07,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 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 10:33:07,058 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 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 10:33:07,058 INFO L185 Difference]: Start difference. First operand has 37 places, 18 transitions, 105 flow. Second operand 6 states and 518 transitions. [2021-03-26 10:33:07,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 23 transitions, 173 flow [2021-03-26 10:33:07,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 23 transitions, 143 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-03-26 10:33:07,059 INFO L241 Difference]: Finished difference. Result has 38 places, 16 transitions, 81 flow [2021-03-26 10:33:07,059 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=38, PETRI_TRANSITIONS=16} [2021-03-26 10:33:07,059 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-26 10:33:07,059 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:07,059 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 16 transitions, 81 flow [2021-03-26 10:33:07,060 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 16 transitions, 81 flow [2021-03-26 10:33:07,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 16 transitions, 81 flow [2021-03-26 10:33:07,061 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 10:33:07,061 INFO L130 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2021-03-26 10:33:07,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 18 events. 0/18 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 10:33:07,061 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 10:33:07,097 INFO L154 LiptonReduction]: Checked pairs total: 39 [2021-03-26 10:33:07,097 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:33:07,097 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-26 10:33:07,101 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 14 transitions, 75 flow [2021-03-26 10:33:07,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 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 10:33:07,101 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:07,101 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:07,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:33:07,101 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:07,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:07,103 INFO L82 PathProgramCache]: Analyzing trace with hash 593772256, now seen corresponding path program 1 times [2021-03-26 10:33:07,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:07,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587872732] [2021-03-26 10:33:07,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:07,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:07,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:07,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:07,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:07,131 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 10:33:07,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587872732] [2021-03-26 10:33:07,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:07,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:33:07,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048134966] [2021-03-26 10:33:07,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:33:07,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:07,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:33:07,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:33:07,133 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 124 [2021-03-26 10:33:07,133 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 14 transitions, 75 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 10:33:07,133 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:07,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 124 [2021-03-26 10:33:07,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:07,151 INFO L129 PetriNetUnfolder]: 23/60 cut-off events. [2021-03-26 10:33:07,151 INFO L130 PetriNetUnfolder]: For 194/214 co-relation queries the response was YES. [2021-03-26 10:33:07,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 60 events. 23/60 cut-off events. For 194/214 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 182 event pairs, 9 based on Foata normal form. 5/63 useless extension candidates. Maximal degree in co-relation 179. Up to 39 conditions per place. [2021-03-26 10:33:07,151 INFO L132 encePairwiseOnDemand]: 118/124 looper letters, 5 selfloop transitions, 3 changer transitions 8/24 dead transitions. [2021-03-26 10:33:07,152 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 24 transitions, 148 flow [2021-03-26 10:33:07,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:33:07,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:33:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 468 transitions. [2021-03-26 10:33:07,153 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7548387096774194 [2021-03-26 10:33:07,153 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 468 transitions. [2021-03-26 10:33:07,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 468 transitions. [2021-03-26 10:33:07,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:07,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 468 transitions. [2021-03-26 10:33:07,154 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 10:33:07,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 0 states have call successors, (0), 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 10:33:07,155 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 0 states have call successors, (0), 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 10:33:07,155 INFO L185 Difference]: Start difference. First operand has 33 places, 14 transitions, 75 flow. Second operand 5 states and 468 transitions. [2021-03-26 10:33:07,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 24 transitions, 148 flow [2021-03-26 10:33:07,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 102 flow, removed 9 selfloop flow, removed 8 redundant places. [2021-03-26 10:33:07,155 INFO L241 Difference]: Finished difference. Result has 32 places, 16 transitions, 75 flow [2021-03-26 10:33:07,156 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=75, PETRI_PLACES=32, PETRI_TRANSITIONS=16} [2021-03-26 10:33:07,156 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2021-03-26 10:33:07,156 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:07,156 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 16 transitions, 75 flow [2021-03-26 10:33:07,156 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 16 transitions, 75 flow [2021-03-26 10:33:07,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 16 transitions, 75 flow [2021-03-26 10:33:07,158 INFO L129 PetriNetUnfolder]: 14/41 cut-off events. [2021-03-26 10:33:07,158 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2021-03-26 10:33:07,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 41 events. 14/41 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 99 event pairs, 8 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 119. Up to 30 conditions per place. [2021-03-26 10:33:07,159 INFO L142 LiptonReduction]: Number of co-enabled transitions 22 [2021-03-26 10:33:07,184 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 10:33:07,184 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:33:07,184 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-26 10:33:07,188 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 16 transitions, 76 flow [2021-03-26 10:33:07,189 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 10:33:07,189 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:07,189 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:07,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:33:07,189 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:07,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:07,190 INFO L82 PathProgramCache]: Analyzing trace with hash 650975810, now seen corresponding path program 1 times [2021-03-26 10:33:07,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:07,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619497924] [2021-03-26 10:33:07,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:07,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:07,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:07,231 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 10:33:07,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:33:07,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:07,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:07,236 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 10:33:07,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619497924] [2021-03-26 10:33:07,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:07,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:33:07,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971207610] [2021-03-26 10:33:07,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:33:07,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:07,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:33:07,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:33:07,238 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 125 [2021-03-26 10:33:07,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 16 transitions, 76 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 10:33:07,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:07,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 125 [2021-03-26 10:33:07,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:07,263 INFO L129 PetriNetUnfolder]: 9/38 cut-off events. [2021-03-26 10:33:07,263 INFO L130 PetriNetUnfolder]: For 68/74 co-relation queries the response was YES. [2021-03-26 10:33:07,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 38 events. 9/38 cut-off events. For 68/74 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 84 event pairs, 1 based on Foata normal form. 5/42 useless extension candidates. Maximal degree in co-relation 131. Up to 27 conditions per place. [2021-03-26 10:33:07,264 INFO L132 encePairwiseOnDemand]: 118/125 looper letters, 3 selfloop transitions, 5 changer transitions 10/26 dead transitions. [2021-03-26 10:33:07,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 176 flow [2021-03-26 10:33:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:33:07,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:33:07,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 560 transitions. [2021-03-26 10:33:07,268 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2021-03-26 10:33:07,268 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 560 transitions. [2021-03-26 10:33:07,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 560 transitions. [2021-03-26 10:33:07,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:07,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 560 transitions. [2021-03-26 10:33:07,273 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 10:33:07,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 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 10:33:07,275 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 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 10:33:07,275 INFO L185 Difference]: Start difference. First operand has 30 places, 16 transitions, 76 flow. Second operand 6 states and 560 transitions. [2021-03-26 10:33:07,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 176 flow [2021-03-26 10:33:07,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 171 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:33:07,276 INFO L241 Difference]: Finished difference. Result has 36 places, 16 transitions, 95 flow [2021-03-26 10:33:07,276 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=95, PETRI_PLACES=36, PETRI_TRANSITIONS=16} [2021-03-26 10:33:07,277 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2021-03-26 10:33:07,277 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:07,277 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 16 transitions, 95 flow [2021-03-26 10:33:07,277 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 16 transitions, 95 flow [2021-03-26 10:33:07,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 16 transitions, 95 flow [2021-03-26 10:33:07,279 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-26 10:33:07,279 INFO L130 PetriNetUnfolder]: For 32/33 co-relation queries the response was YES. [2021-03-26 10:33:07,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 21 events. 2/21 cut-off events. For 32/33 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 1 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 65. Up to 10 conditions per place. [2021-03-26 10:33:07,279 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-26 10:33:07,366 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 10:33:07,366 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:33:07,366 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-26 10:33:07,367 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 15 transitions, 95 flow [2021-03-26 10:33:07,367 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 10:33:07,367 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:07,367 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:07,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:33:07,367 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:07,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:07,368 INFO L82 PathProgramCache]: Analyzing trace with hash -158372738, now seen corresponding path program 1 times [2021-03-26 10:33:07,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:07,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615687539] [2021-03-26 10:33:07,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:07,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:07,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:07,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:07,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:07,411 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 10:33:07,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:33:07,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:07,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:07,418 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 10:33:07,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615687539] [2021-03-26 10:33:07,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:07,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:33:07,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567147467] [2021-03-26 10:33:07,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:33:07,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:07,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:33:07,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:33:07,421 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 127 [2021-03-26 10:33:07,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 15 transitions, 95 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 10:33:07,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:07,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 127 [2021-03-26 10:33:07,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:07,435 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-03-26 10:33:07,435 INFO L130 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2021-03-26 10:33:07,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 17 events. 1/17 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 2/18 useless extension candidates. Maximal degree in co-relation 55. Up to 6 conditions per place. [2021-03-26 10:33:07,436 INFO L132 encePairwiseOnDemand]: 120/127 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2021-03-26 10:33:07,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 14 transitions, 91 flow [2021-03-26 10:33:07,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:33:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:33:07,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 457 transitions. [2021-03-26 10:33:07,440 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7196850393700788 [2021-03-26 10:33:07,440 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 457 transitions. [2021-03-26 10:33:07,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 457 transitions. [2021-03-26 10:33:07,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:07,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 457 transitions. [2021-03-26 10:33:07,441 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 10:33:07,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 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 10:33:07,443 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 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 10:33:07,443 INFO L185 Difference]: Start difference. First operand has 33 places, 15 transitions, 95 flow. Second operand 5 states and 457 transitions. [2021-03-26 10:33:07,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 14 transitions, 91 flow [2021-03-26 10:33:07,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 14 transitions, 70 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-26 10:33:07,443 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-03-26 10:33:07,443 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-03-26 10:33:07,444 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2021-03-26 10:33:07,444 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:07,444 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:33:07,444 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:33:07,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:33:07,444 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:33:07,444 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:33:07,444 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 10:33:07,444 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:33:07,444 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:33:07,444 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:33:07,444 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 0 [2021-03-26 10:33:07,445 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:33:07,445 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 10:33:07,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:33:07,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:33:07 BasicIcfg [2021-03-26 10:33:07,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:33:07,448 INFO L168 Benchmark]: Toolchain (without parser) took 4567.02 ms. Allocated memory was 255.9 MB in the beginning and 415.2 MB in the end (delta: 159.4 MB). Free memory was 234.9 MB in the beginning and 295.8 MB in the end (delta: -60.9 MB). Peak memory consumption was 97.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:07,448 INFO L168 Benchmark]: CDTParser took 0.11 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 10:33:07,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.94 ms. Allocated memory was 255.9 MB in the beginning and 346.0 MB in the end (delta: 90.2 MB). Free memory was 234.9 MB in the beginning and 309.0 MB in the end (delta: -74.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:07,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.39 ms. Allocated memory is still 346.0 MB. Free memory was 309.0 MB in the beginning and 306.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:07,449 INFO L168 Benchmark]: Boogie Preprocessor took 25.09 ms. Allocated memory is still 346.0 MB. Free memory was 306.9 MB in the beginning and 305.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:07,449 INFO L168 Benchmark]: RCFGBuilder took 384.14 ms. Allocated memory is still 346.0 MB. Free memory was 305.6 MB in the beginning and 283.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:07,450 INFO L168 Benchmark]: TraceAbstraction took 3760.76 ms. Allocated memory was 346.0 MB in the beginning and 415.2 MB in the end (delta: 69.2 MB). Free memory was 283.2 MB in the beginning and 295.8 MB in the end (delta: -12.5 MB). Peak memory consumption was 56.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:07,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 347.94 ms. Allocated memory was 255.9 MB in the beginning and 346.0 MB in the end (delta: 90.2 MB). Free memory was 234.9 MB in the beginning and 309.0 MB in the end (delta: -74.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.39 ms. Allocated memory is still 346.0 MB. Free memory was 309.0 MB in the beginning and 306.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.09 ms. Allocated memory is still 346.0 MB. Free memory was 306.9 MB in the beginning and 305.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 384.14 ms. Allocated memory is still 346.0 MB. Free memory was 305.6 MB in the beginning and 283.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3760.76 ms. Allocated memory was 346.0 MB in the beginning and 415.2 MB in the end (delta: 69.2 MB). Free memory was 283.2 MB in the beginning and 295.8 MB in the end (delta: -12.5 MB). Peak memory consumption was 56.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1487.4ms, 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: 680, positive: 633, positive conditional: 633, 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: 680, positive: 633, positive conditional: 0, positive unconditional: 633, 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: 680, positive: 633, positive conditional: 0, positive unconditional: 633, 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: 572, positive: 547, positive conditional: 0, positive unconditional: 547, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 572, positive: 547, positive conditional: 0, positive unconditional: 547, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 95, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 680, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 572, unknown conditional: 0, unknown unconditional: 572] , Statistics on independence cache: Total cache size (in pairs): 572, Positive cache size: 547, Positive conditional cache size: 0, Positive unconditional cache size: 547, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 689.6ms, 40 PlacesBefore, 34 PlacesAfterwards, 25 TransitionsBefore, 22 TransitionsAfterwards, 154 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 78 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 36, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 36, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 36, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 579, Positive cache size: 553, Positive conditional cache size: 0, Positive unconditional cache size: 553, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.5ms, 44 PlacesBefore, 41 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 184 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 86 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 17, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 582, Positive cache size: 554, Positive conditional cache size: 0, Positive unconditional cache size: 554, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.8ms, 49 PlacesBefore, 46 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 70 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 584, Positive cache size: 556, Positive conditional cache size: 0, Positive unconditional cache size: 556, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9ms, 45 PlacesBefore, 43 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 25 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 584, Positive cache size: 556, Positive conditional cache size: 0, Positive unconditional cache size: 556, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.6ms, 41 PlacesBefore, 37 PlacesAfterwards, 19 TransitionsBefore, 18 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 64 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 15, positive conditional: 15, 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: 22, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 22, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 22, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 596, Positive cache size: 568, Positive conditional cache size: 0, Positive unconditional cache size: 568, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.5ms, 38 PlacesBefore, 33 PlacesAfterwards, 16 TransitionsBefore, 14 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 602, Positive cache size: 573, Positive conditional cache size: 0, Positive unconditional cache size: 573, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.1ms, 32 PlacesBefore, 30 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 22 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 604, Positive cache size: 575, Positive conditional cache size: 2, Positive unconditional cache size: 573, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.2ms, 36 PlacesBefore, 33 PlacesAfterwards, 16 TransitionsBefore, 15 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 605, Positive cache size: 576, Positive conditional cache size: 2, Positive unconditional cache size: 574, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 30 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 605, Positive cache size: 576, Positive conditional cache size: 2, Positive unconditional cache size: 574, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, 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: 2.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3664.7ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 477.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1571.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 74 SDtfs, 90 SDslu, 112 SDs, 0 SdLazy, 190 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 117.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 180.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=2, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.1ms SsaConstructionTime, 144.7ms SatisfiabilityAnalysisTime, 359.3ms InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 518 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...