/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 15:06:17,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 15:06:17,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 15:06:17,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 15:06:17,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 15:06:17,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 15:06:17,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 15:06:17,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 15:06:17,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 15:06:17,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 15:06:17,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 15:06:17,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 15:06:17,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 15:06:17,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 15:06:17,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 15:06:17,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 15:06:17,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 15:06:17,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 15:06:17,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 15:06:17,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 15:06:17,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 15:06:17,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 15:06:17,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 15:06:17,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 15:06:17,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 15:06:17,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 15:06:17,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 15:06:17,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 15:06:17,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 15:06:17,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 15:06:17,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 15:06:17,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 15:06:17,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 15:06:17,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 15:06:17,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 15:06:17,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 15:06:17,839 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-RepeatedSemanticLbe.epf [2021-03-25 15:06:17,873 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 15:06:17,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 15:06:17,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 15:06:17,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 15:06:17,880 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 15:06:17,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 15:06:17,880 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 15:06:17,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 15:06:17,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 15:06:17,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 15:06:17,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 15:06:17,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 15:06:17,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 15:06:17,882 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 15:06:17,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 15:06:17,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 15:06:17,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 15:06:17,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 15:06:17,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 15:06:17,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 15:06:17,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 15:06:17,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 15:06:17,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 15:06:17,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 15:06:17,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 15:06:17,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 15:06:17,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 15:06:17,884 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 15:06:17,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 15:06:17,884 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 15:06:18,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 15:06:18,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 15:06:18,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 15:06:18,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 15:06:18,230 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 15:06:18,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-03-25 15:06:18,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8085e5f8b/ea7754ab940749a0b2d34801be858fc9/FLAGfa020d7f3 [2021-03-25 15:06:18,838 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 15:06:18,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-03-25 15:06:18,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8085e5f8b/ea7754ab940749a0b2d34801be858fc9/FLAGfa020d7f3 [2021-03-25 15:06:19,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8085e5f8b/ea7754ab940749a0b2d34801be858fc9 [2021-03-25 15:06:19,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 15:06:19,273 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 15:06:19,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 15:06:19,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 15:06:19,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 15:06:19,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:06:19" (1/1) ... [2021-03-25 15:06:19,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44bc64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19, skipping insertion in model container [2021-03-25 15:06:19,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:06:19" (1/1) ... [2021-03-25 15:06:19,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 15:06:19,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 15:06:19,489 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/thin002_tso.opt.i[949,962] [2021-03-25 15:06:19,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 15:06:19,709 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 15:06:19,720 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/thin002_tso.opt.i[949,962] [2021-03-25 15:06:19,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 15:06:19,831 INFO L208 MainTranslator]: Completed translation [2021-03-25 15:06:19,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19 WrapperNode [2021-03-25 15:06:19,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 15:06:19,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 15:06:19,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 15:06:19,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 15:06:19,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19" (1/1) ... [2021-03-25 15:06:19,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19" (1/1) ... [2021-03-25 15:06:19,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 15:06:19,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 15:06:19,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 15:06:19,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 15:06:19,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19" (1/1) ... [2021-03-25 15:06:19,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19" (1/1) ... [2021-03-25 15:06:19,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19" (1/1) ... [2021-03-25 15:06:19,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19" (1/1) ... [2021-03-25 15:06:19,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19" (1/1) ... [2021-03-25 15:06:19,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19" (1/1) ... [2021-03-25 15:06:19,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19" (1/1) ... [2021-03-25 15:06:19,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 15:06:19,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 15:06:19,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 15:06:19,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 15:06:19,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 15:06:19,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 15:06:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 15:06:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 15:06:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 15:06:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 15:06:20,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 15:06:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 15:06:20,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 15:06:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 15:06:20,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 15:06:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 15:06:20,003 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 15:06:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 15:06:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 15:06:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 15:06:20,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 15:06:20,004 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 15:06:20,317 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 15:06:20,317 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 15:06:20,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:06:20 BoogieIcfgContainer [2021-03-25 15:06:20,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 15:06:20,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 15:06:20,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 15:06:20,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 15:06:20,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 03:06:19" (1/3) ... [2021-03-25 15:06:20,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421e1e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:06:20, skipping insertion in model container [2021-03-25 15:06:20,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:06:19" (2/3) ... [2021-03-25 15:06:20,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421e1e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:06:20, skipping insertion in model container [2021-03-25 15:06:20,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:06:20" (3/3) ... [2021-03-25 15:06:20,336 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2021-03-25 15:06:20,341 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 15:06:20,344 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 15:06:20,344 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 15:06:20,395 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,396 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,396 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,396 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,396 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,397 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,397 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,397 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,397 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,398 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,398 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,399 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,399 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,399 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,399 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,399 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,399 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,399 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,400 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,400 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,400 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,400 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,401 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,401 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,401 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,401 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,401 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,401 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,401 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,401 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,402 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,402 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,402 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,402 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,402 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,404 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,404 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,412 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,414 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,414 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,423 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,423 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,423 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,423 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,426 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,427 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,427 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,427 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:06:20,429 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 15:06:20,445 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 15:06:20,470 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 15:06:20,470 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 15:06:20,470 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 15:06:20,470 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 15:06:20,470 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 15:06:20,470 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 15:06:20,470 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 15:06:20,471 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 15:06:20,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2021-03-25 15:06:20,537 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-03-25 15:06:20,537 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:06:20,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-03-25 15:06:20,540 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 91 transitions, 202 flow [2021-03-25 15:06:20,544 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 73 transitions, 158 flow [2021-03-25 15:06:20,546 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:06:20,555 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 73 transitions, 158 flow [2021-03-25 15:06:20,558 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 73 transitions, 158 flow [2021-03-25 15:06:20,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 73 transitions, 158 flow [2021-03-25 15:06:20,584 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-03-25 15:06:20,585 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:06:20,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 73 events. 1/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-25 15:06:20,588 INFO L142 LiptonReduction]: Number of co-enabled transitions 1392 [2021-03-25 15:06:22,094 INFO L154 LiptonReduction]: Checked pairs total: 1938 [2021-03-25 15:06:22,094 INFO L156 LiptonReduction]: Total number of compositions: 46 [2021-03-25 15:06:22,096 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1551 [2021-03-25 15:06:22,105 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-25 15:06:22,106 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:06:22,106 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:06:22,107 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:06:22,107 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:06:22,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:06:22,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1692446056, now seen corresponding path program 1 times [2021-03-25 15:06:22,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:06:22,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220326688] [2021-03-25 15:06:22,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:06:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:06:22,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:22,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:06:22,353 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 15:06:22,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:06:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:06:22,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220326688] [2021-03-25 15:06:22,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:06:22,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:06:22,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076021548] [2021-03-25 15:06:22,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 15:06:22,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:06:22,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 15:06:22,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 15:06:22,395 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 137 [2021-03-25 15:06:22,399 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:22,400 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:06:22,400 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 137 [2021-03-25 15:06:22,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:06:22,454 INFO L129 PetriNetUnfolder]: 45/141 cut-off events. [2021-03-25 15:06:22,455 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:06:22,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 141 events. 45/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 606 event pairs, 23 based on Foata normal form. 1/125 useless extension candidates. Maximal degree in co-relation 216. Up to 76 conditions per place. [2021-03-25 15:06:22,459 INFO L132 encePairwiseOnDemand]: 131/137 looper letters, 6 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2021-03-25 15:06:22,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 31 transitions, 96 flow [2021-03-25 15:06:22,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:06:22,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:06:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2021-03-25 15:06:22,476 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8467153284671532 [2021-03-25 15:06:22,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2021-03-25 15:06:22,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2021-03-25 15:06:22,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:06:22,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2021-03-25 15:06:22,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:22,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:22,494 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:22,495 INFO L185 Difference]: Start difference. First operand has 40 places, 27 transitions, 66 flow. Second operand 3 states and 348 transitions. [2021-03-25 15:06:22,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 31 transitions, 96 flow [2021-03-25 15:06:22,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 31 transitions, 92 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 15:06:22,499 INFO L241 Difference]: Finished difference. Result has 39 places, 31 transitions, 95 flow [2021-03-25 15:06:22,501 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2021-03-25 15:06:22,501 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2021-03-25 15:06:22,502 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:06:22,502 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 31 transitions, 95 flow [2021-03-25 15:06:22,502 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 31 transitions, 95 flow [2021-03-25 15:06:22,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 31 transitions, 95 flow [2021-03-25 15:06:22,529 INFO L129 PetriNetUnfolder]: 45/141 cut-off events. [2021-03-25 15:06:22,530 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 15:06:22,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 141 events. 45/141 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 588 event pairs, 23 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 220. Up to 76 conditions per place. [2021-03-25 15:06:22,533 INFO L142 LiptonReduction]: Number of co-enabled transitions 268 [2021-03-25 15:06:22,994 INFO L154 LiptonReduction]: Checked pairs total: 480 [2021-03-25 15:06:22,994 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 15:06:22,994 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 493 [2021-03-25 15:06:22,995 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 87 flow [2021-03-25 15:06:22,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:22,996 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:06:22,996 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:06:22,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 15:06:22,996 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:06:22,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:06:22,997 INFO L82 PathProgramCache]: Analyzing trace with hash 2088650593, now seen corresponding path program 1 times [2021-03-25 15:06:22,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:06:22,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370932168] [2021-03-25 15:06:22,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:06:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:06:23,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:23,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:06:23,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:23,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:23,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:06:23,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370932168] [2021-03-25 15:06:23,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:06:23,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:06:23,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341707111] [2021-03-25 15:06:23,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 15:06:23,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:06:23,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 15:06:23,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 15:06:23,105 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 141 [2021-03-25 15:06:23,105 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,105 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:06:23,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 141 [2021-03-25 15:06:23,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:06:23,122 INFO L129 PetriNetUnfolder]: 29/98 cut-off events. [2021-03-25 15:06:23,122 INFO L130 PetriNetUnfolder]: For 22/46 co-relation queries the response was YES. [2021-03-25 15:06:23,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 98 events. 29/98 cut-off events. For 22/46 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 370 event pairs, 14 based on Foata normal form. 4/92 useless extension candidates. Maximal degree in co-relation 173. Up to 53 conditions per place. [2021-03-25 15:06:23,123 INFO L132 encePairwiseOnDemand]: 138/141 looper letters, 1 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2021-03-25 15:06:23,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 27 transitions, 95 flow [2021-03-25 15:06:23,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:06:23,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:06:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2021-03-25 15:06:23,126 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9101654846335697 [2021-03-25 15:06:23,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2021-03-25 15:06:23,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2021-03-25 15:06:23,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:06:23,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2021-03-25 15:06:23,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,132 INFO L185 Difference]: Start difference. First operand has 35 places, 27 transitions, 87 flow. Second operand 3 states and 385 transitions. [2021-03-25 15:06:23,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 27 transitions, 95 flow [2021-03-25 15:06:23,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 27 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 15:06:23,133 INFO L241 Difference]: Finished difference. Result has 37 places, 27 transitions, 93 flow [2021-03-25 15:06:23,134 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2021-03-25 15:06:23,134 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2021-03-25 15:06:23,135 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:06:23,135 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 27 transitions, 93 flow [2021-03-25 15:06:23,135 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 27 transitions, 93 flow [2021-03-25 15:06:23,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 27 transitions, 93 flow [2021-03-25 15:06:23,145 INFO L129 PetriNetUnfolder]: 29/106 cut-off events. [2021-03-25 15:06:23,145 INFO L130 PetriNetUnfolder]: For 16/19 co-relation queries the response was YES. [2021-03-25 15:06:23,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 106 events. 29/106 cut-off events. For 16/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 444 event pairs, 18 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 185. Up to 53 conditions per place. [2021-03-25 15:06:23,147 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-25 15:06:23,308 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2021-03-25 15:06:23,535 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2021-03-25 15:06:23,623 INFO L154 LiptonReduction]: Checked pairs total: 316 [2021-03-25 15:06:23,623 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 15:06:23,623 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 488 [2021-03-25 15:06:23,624 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 91 flow [2021-03-25 15:06:23,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,625 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:06:23,625 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:06:23,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 15:06:23,625 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:06:23,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:06:23,626 INFO L82 PathProgramCache]: Analyzing trace with hash -2079597034, now seen corresponding path program 1 times [2021-03-25 15:06:23,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:06:23,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803172408] [2021-03-25 15:06:23,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:06:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:06:23,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:23,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:06:23,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:23,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:23,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:23,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:06:23,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803172408] [2021-03-25 15:06:23,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:06:23,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:06:23,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963834842] [2021-03-25 15:06:23,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:06:23,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:06:23,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:06:23,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:06:23,687 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 142 [2021-03-25 15:06:23,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,688 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:06:23,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 142 [2021-03-25 15:06:23,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:06:23,711 INFO L129 PetriNetUnfolder]: 25/101 cut-off events. [2021-03-25 15:06:23,711 INFO L130 PetriNetUnfolder]: For 75/190 co-relation queries the response was YES. [2021-03-25 15:06:23,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 101 events. 25/101 cut-off events. For 75/190 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 458 event pairs, 14 based on Foata normal form. 10/103 useless extension candidates. Maximal degree in co-relation 201. Up to 49 conditions per place. [2021-03-25 15:06:23,712 INFO L132 encePairwiseOnDemand]: 138/142 looper letters, 1 selfloop transitions, 3 changer transitions 2/27 dead transitions. [2021-03-25 15:06:23,712 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 27 transitions, 110 flow [2021-03-25 15:06:23,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 15:06:23,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 15:06:23,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 487 transitions. [2021-03-25 15:06:23,714 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8573943661971831 [2021-03-25 15:06:23,714 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 487 transitions. [2021-03-25 15:06:23,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 487 transitions. [2021-03-25 15:06:23,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:06:23,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 487 transitions. [2021-03-25 15:06:23,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,718 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,718 INFO L185 Difference]: Start difference. First operand has 36 places, 26 transitions, 91 flow. Second operand 4 states and 487 transitions. [2021-03-25 15:06:23,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 27 transitions, 110 flow [2021-03-25 15:06:23,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 27 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 15:06:23,720 INFO L241 Difference]: Finished difference. Result has 39 places, 25 transitions, 94 flow [2021-03-25 15:06:23,720 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2021-03-25 15:06:23,721 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2021-03-25 15:06:23,721 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:06:23,721 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 25 transitions, 94 flow [2021-03-25 15:06:23,722 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 25 transitions, 94 flow [2021-03-25 15:06:23,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 25 transitions, 94 flow [2021-03-25 15:06:23,726 INFO L129 PetriNetUnfolder]: 13/59 cut-off events. [2021-03-25 15:06:23,727 INFO L130 PetriNetUnfolder]: For 18/23 co-relation queries the response was YES. [2021-03-25 15:06:23,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 59 events. 13/59 cut-off events. For 18/23 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 200 event pairs, 5 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 121. Up to 29 conditions per place. [2021-03-25 15:06:23,728 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-25 15:06:23,729 INFO L154 LiptonReduction]: Checked pairs total: 128 [2021-03-25 15:06:23,729 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:06:23,730 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 15:06:23,734 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 94 flow [2021-03-25 15:06:23,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,735 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:06:23,735 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:06:23,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 15:06:23,735 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:06:23,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:06:23,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1199546539, now seen corresponding path program 1 times [2021-03-25 15:06:23,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:06:23,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218679976] [2021-03-25 15:06:23,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:06:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:06:23,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:23,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:23,784 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 15:06:23,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:06:23,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:06:23,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218679976] [2021-03-25 15:06:23,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:06:23,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:06:23,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205219974] [2021-03-25 15:06:23,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:06:23,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:06:23,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:06:23,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:06:23,793 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 142 [2021-03-25 15:06:23,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:06:23,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 142 [2021-03-25 15:06:23,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:06:23,810 INFO L129 PetriNetUnfolder]: 10/56 cut-off events. [2021-03-25 15:06:23,810 INFO L130 PetriNetUnfolder]: For 50/105 co-relation queries the response was YES. [2021-03-25 15:06:23,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 56 events. 10/56 cut-off events. For 50/105 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 167 event pairs, 2 based on Foata normal form. 4/58 useless extension candidates. Maximal degree in co-relation 126. Up to 24 conditions per place. [2021-03-25 15:06:23,811 INFO L132 encePairwiseOnDemand]: 139/142 looper letters, 9 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2021-03-25 15:06:23,811 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 134 flow [2021-03-25 15:06:23,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:06:23,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:06:23,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2021-03-25 15:06:23,813 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8192488262910798 [2021-03-25 15:06:23,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2021-03-25 15:06:23,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2021-03-25 15:06:23,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:06:23,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2021-03-25 15:06:23,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,819 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,819 INFO L185 Difference]: Start difference. First operand has 39 places, 25 transitions, 94 flow. Second operand 3 states and 349 transitions. [2021-03-25 15:06:23,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 134 flow [2021-03-25 15:06:23,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 120 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 15:06:23,821 INFO L241 Difference]: Finished difference. Result has 38 places, 25 transitions, 93 flow [2021-03-25 15:06:23,821 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2021-03-25 15:06:23,822 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2021-03-25 15:06:23,822 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:06:23,822 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 25 transitions, 93 flow [2021-03-25 15:06:23,822 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 25 transitions, 93 flow [2021-03-25 15:06:23,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 25 transitions, 93 flow [2021-03-25 15:06:23,827 INFO L129 PetriNetUnfolder]: 10/54 cut-off events. [2021-03-25 15:06:23,827 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2021-03-25 15:06:23,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 54 events. 10/54 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 175 event pairs, 4 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 104. Up to 24 conditions per place. [2021-03-25 15:06:23,828 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-25 15:06:23,829 INFO L154 LiptonReduction]: Checked pairs total: 128 [2021-03-25 15:06:23,829 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:06:23,829 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 15:06:23,831 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 93 flow [2021-03-25 15:06:23,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,832 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:06:23,832 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:06:23,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 15:06:23,832 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:06:23,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:06:23,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1714960642, now seen corresponding path program 1 times [2021-03-25 15:06:23,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:06:23,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722420607] [2021-03-25 15:06:23,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:06:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:06:23,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:23,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:23,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:23,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:23,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:06:23,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722420607] [2021-03-25 15:06:23,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:06:23,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:06:23,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956629190] [2021-03-25 15:06:23,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:06:23,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:06:23,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:06:23,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:06:23,891 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 142 [2021-03-25 15:06:23,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:06:23,892 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 142 [2021-03-25 15:06:23,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:06:23,911 INFO L129 PetriNetUnfolder]: 11/63 cut-off events. [2021-03-25 15:06:23,911 INFO L130 PetriNetUnfolder]: For 58/80 co-relation queries the response was YES. [2021-03-25 15:06:23,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 63 events. 11/63 cut-off events. For 58/80 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 222 event pairs, 7 based on Foata normal form. 6/66 useless extension candidates. Maximal degree in co-relation 132. Up to 27 conditions per place. [2021-03-25 15:06:23,912 INFO L132 encePairwiseOnDemand]: 138/142 looper letters, 1 selfloop transitions, 3 changer transitions 2/26 dead transitions. [2021-03-25 15:06:23,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 26 transitions, 112 flow [2021-03-25 15:06:23,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 15:06:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 15:06:23,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 487 transitions. [2021-03-25 15:06:23,914 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8573943661971831 [2021-03-25 15:06:23,914 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 487 transitions. [2021-03-25 15:06:23,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 487 transitions. [2021-03-25 15:06:23,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:06:23,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 487 transitions. [2021-03-25 15:06:23,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,918 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,918 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 93 flow. Second operand 4 states and 487 transitions. [2021-03-25 15:06:23,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 26 transitions, 112 flow [2021-03-25 15:06:23,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 26 transitions, 104 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 15:06:23,921 INFO L241 Difference]: Finished difference. Result has 41 places, 24 transitions, 96 flow [2021-03-25 15:06:23,922 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=41, PETRI_TRANSITIONS=24} [2021-03-25 15:06:23,922 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2021-03-25 15:06:23,922 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:06:23,922 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 24 transitions, 96 flow [2021-03-25 15:06:23,923 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 24 transitions, 96 flow [2021-03-25 15:06:23,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 24 transitions, 96 flow [2021-03-25 15:06:23,928 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2021-03-25 15:06:23,929 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-25 15:06:23,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 36 events. 4/36 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 79 event pairs, 3 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 74. Up to 14 conditions per place. [2021-03-25 15:06:23,929 INFO L142 LiptonReduction]: Number of co-enabled transitions 178 [2021-03-25 15:06:23,973 INFO L154 LiptonReduction]: Checked pairs total: 179 [2021-03-25 15:06:23,974 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 15:06:23,974 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-25 15:06:23,974 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 95 flow [2021-03-25 15:06:23,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:23,975 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:06:23,975 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:06:23,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 15:06:23,975 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:06:23,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:06:23,976 INFO L82 PathProgramCache]: Analyzing trace with hash 859250500, now seen corresponding path program 1 times [2021-03-25 15:06:23,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:06:23,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554615046] [2021-03-25 15:06:23,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:06:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:06:24,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:24,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:24,011 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 15:06:24,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:06:24,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:06:24,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554615046] [2021-03-25 15:06:24,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:06:24,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:06:24,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369679753] [2021-03-25 15:06:24,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:06:24,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:06:24,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:06:24,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:06:24,022 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 144 [2021-03-25 15:06:24,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 23 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 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) [2021-03-25 15:06:24,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:06:24,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 144 [2021-03-25 15:06:24,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:06:24,048 INFO L129 PetriNetUnfolder]: 3/33 cut-off events. [2021-03-25 15:06:24,048 INFO L130 PetriNetUnfolder]: For 26/33 co-relation queries the response was YES. [2021-03-25 15:06:24,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 33 events. 3/33 cut-off events. For 26/33 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 61 event pairs, 0 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 75. Up to 12 conditions per place. [2021-03-25 15:06:24,049 INFO L132 encePairwiseOnDemand]: 141/144 looper letters, 7 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-03-25 15:06:24,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 25 transitions, 129 flow [2021-03-25 15:06:24,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:06:24,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:06:24,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2021-03-25 15:06:24,050 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8078703703703703 [2021-03-25 15:06:24,050 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2021-03-25 15:06:24,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2021-03-25 15:06:24,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:06:24,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2021-03-25 15:06:24,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,054 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,054 INFO L185 Difference]: Start difference. First operand has 40 places, 23 transitions, 95 flow. Second operand 3 states and 349 transitions. [2021-03-25 15:06:24,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 25 transitions, 129 flow [2021-03-25 15:06:24,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 25 transitions, 110 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-25 15:06:24,057 INFO L241 Difference]: Finished difference. Result has 38 places, 23 transitions, 90 flow [2021-03-25 15:06:24,057 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2021-03-25 15:06:24,057 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2021-03-25 15:06:24,057 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:06:24,058 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 23 transitions, 90 flow [2021-03-25 15:06:24,058 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 23 transitions, 90 flow [2021-03-25 15:06:24,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 23 transitions, 90 flow [2021-03-25 15:06:24,063 INFO L129 PetriNetUnfolder]: 3/33 cut-off events. [2021-03-25 15:06:24,063 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-25 15:06:24,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 33 events. 3/33 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 2 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 64. Up to 12 conditions per place. [2021-03-25 15:06:24,064 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 15:06:24,065 INFO L154 LiptonReduction]: Checked pairs total: 108 [2021-03-25 15:06:24,065 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:06:24,065 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 15:06:24,067 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 90 flow [2021-03-25 15:06:24,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 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) [2021-03-25 15:06:24,067 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:06:24,067 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:06:24,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 15:06:24,067 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:06:24,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:06:24,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1562681283, now seen corresponding path program 1 times [2021-03-25 15:06:24,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:06:24,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989430241] [2021-03-25 15:06:24,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:06:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:06:24,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:24,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:24,136 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 15:06:24,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:06:24,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:06:24,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989430241] [2021-03-25 15:06:24,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:06:24,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:06:24,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646293053] [2021-03-25 15:06:24,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:06:24,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:06:24,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:06:24,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:06:24,149 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 144 [2021-03-25 15:06:24,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:06:24,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 144 [2021-03-25 15:06:24,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:06:24,183 INFO L129 PetriNetUnfolder]: 4/46 cut-off events. [2021-03-25 15:06:24,183 INFO L130 PetriNetUnfolder]: For 36/43 co-relation queries the response was YES. [2021-03-25 15:06:24,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 46 events. 4/46 cut-off events. For 36/43 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 131 event pairs, 0 based on Foata normal form. 5/50 useless extension candidates. Maximal degree in co-relation 105. Up to 16 conditions per place. [2021-03-25 15:06:24,183 INFO L132 encePairwiseOnDemand]: 136/144 looper letters, 6 selfloop transitions, 7 changer transitions 1/28 dead transitions. [2021-03-25 15:06:24,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 28 transitions, 146 flow [2021-03-25 15:06:24,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:06:24,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:06:24,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 556 transitions. [2021-03-25 15:06:24,185 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7722222222222223 [2021-03-25 15:06:24,185 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 556 transitions. [2021-03-25 15:06:24,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 556 transitions. [2021-03-25 15:06:24,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:06:24,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 556 transitions. [2021-03-25 15:06:24,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,190 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,190 INFO L185 Difference]: Start difference. First operand has 38 places, 23 transitions, 90 flow. Second operand 5 states and 556 transitions. [2021-03-25 15:06:24,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 28 transitions, 146 flow [2021-03-25 15:06:24,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 28 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 15:06:24,193 INFO L241 Difference]: Finished difference. Result has 43 places, 26 transitions, 136 flow [2021-03-25 15:06:24,193 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=43, PETRI_TRANSITIONS=26} [2021-03-25 15:06:24,194 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2021-03-25 15:06:24,194 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:06:24,194 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 26 transitions, 136 flow [2021-03-25 15:06:24,194 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 26 transitions, 136 flow [2021-03-25 15:06:24,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 26 transitions, 136 flow [2021-03-25 15:06:24,202 INFO L129 PetriNetUnfolder]: 3/41 cut-off events. [2021-03-25 15:06:24,202 INFO L130 PetriNetUnfolder]: For 28/33 co-relation queries the response was YES. [2021-03-25 15:06:24,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 41 events. 3/41 cut-off events. For 28/33 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 114 event pairs, 0 based on Foata normal form. 2/42 useless extension candidates. Maximal degree in co-relation 98. Up to 15 conditions per place. [2021-03-25 15:06:24,203 INFO L142 LiptonReduction]: Number of co-enabled transitions 180 [2021-03-25 15:06:24,263 INFO L154 LiptonReduction]: Checked pairs total: 289 [2021-03-25 15:06:24,263 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 15:06:24,263 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-25 15:06:24,267 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 25 transitions, 136 flow [2021-03-25 15:06:24,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,268 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:06:24,268 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:06:24,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 15:06:24,268 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:06:24,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:06:24,269 INFO L82 PathProgramCache]: Analyzing trace with hash 144937143, now seen corresponding path program 2 times [2021-03-25 15:06:24,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:06:24,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527778575] [2021-03-25 15:06:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:06:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:06:24,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:24,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:24,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:24,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:24,324 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 15:06:24,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:06:24,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:06:24,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527778575] [2021-03-25 15:06:24,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:06:24,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:06:24,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388510080] [2021-03-25 15:06:24,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 15:06:24,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:06:24,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 15:06:24,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 15:06:24,338 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 147 [2021-03-25 15:06:24,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 25 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:06:24,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 147 [2021-03-25 15:06:24,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:06:24,359 INFO L129 PetriNetUnfolder]: 2/41 cut-off events. [2021-03-25 15:06:24,359 INFO L130 PetriNetUnfolder]: For 81/139 co-relation queries the response was YES. [2021-03-25 15:06:24,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 41 events. 2/41 cut-off events. For 81/139 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 118 event pairs, 0 based on Foata normal form. 6/46 useless extension candidates. Maximal degree in co-relation 116. Up to 15 conditions per place. [2021-03-25 15:06:24,360 INFO L132 encePairwiseOnDemand]: 142/147 looper letters, 4 selfloop transitions, 3 changer transitions 5/25 dead transitions. [2021-03-25 15:06:24,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 25 transitions, 160 flow [2021-03-25 15:06:24,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 15:06:24,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 15:06:24,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 445 transitions. [2021-03-25 15:06:24,362 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7568027210884354 [2021-03-25 15:06:24,362 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 445 transitions. [2021-03-25 15:06:24,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 445 transitions. [2021-03-25 15:06:24,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:06:24,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 445 transitions. [2021-03-25 15:06:24,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,365 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,365 INFO L185 Difference]: Start difference. First operand has 41 places, 25 transitions, 136 flow. Second operand 4 states and 445 transitions. [2021-03-25 15:06:24,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 25 transitions, 160 flow [2021-03-25 15:06:24,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 25 transitions, 153 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 15:06:24,368 INFO L241 Difference]: Finished difference. Result has 44 places, 20 transitions, 102 flow [2021-03-25 15:06:24,369 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=44, PETRI_TRANSITIONS=20} [2021-03-25 15:06:24,369 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2021-03-25 15:06:24,369 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:06:24,369 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 20 transitions, 102 flow [2021-03-25 15:06:24,369 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 20 transitions, 102 flow [2021-03-25 15:06:24,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 20 transitions, 102 flow [2021-03-25 15:06:24,375 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-25 15:06:24,375 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-25 15:06:24,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 20 events. 0/20 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-25 15:06:24,376 INFO L142 LiptonReduction]: Number of co-enabled transitions 116 [2021-03-25 15:06:24,419 INFO L154 LiptonReduction]: Checked pairs total: 104 [2021-03-25 15:06:24,419 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 15:06:24,419 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 15:06:24,421 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 18 transitions, 98 flow [2021-03-25 15:06:24,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,422 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:06:24,422 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:06:24,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 15:06:24,422 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:06:24,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:06:24,422 INFO L82 PathProgramCache]: Analyzing trace with hash 948400081, now seen corresponding path program 1 times [2021-03-25 15:06:24,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:06:24,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218237056] [2021-03-25 15:06:24,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:06:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:06:24,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:24,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:24,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:06:24,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:06:24,471 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 15:06:24,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 15:06:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:06:24,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218237056] [2021-03-25 15:06:24,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:06:24,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:06:24,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098142644] [2021-03-25 15:06:24,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 15:06:24,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:06:24,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 15:06:24,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 15:06:24,483 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 149 [2021-03-25 15:06:24,483 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 18 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,483 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:06:24,483 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 149 [2021-03-25 15:06:24,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:06:24,496 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-25 15:06:24,496 INFO L130 PetriNetUnfolder]: For 63/71 co-relation queries the response was YES. [2021-03-25 15:06:24,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 17 events. 0/17 cut-off events. For 63/71 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 2/19 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-25 15:06:24,497 INFO L132 encePairwiseOnDemand]: 146/149 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2021-03-25 15:06:24,497 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 17 transitions, 96 flow [2021-03-25 15:06:24,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 15:06:24,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 15:06:24,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 452 transitions. [2021-03-25 15:06:24,498 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7583892617449665 [2021-03-25 15:06:24,499 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 452 transitions. [2021-03-25 15:06:24,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 452 transitions. [2021-03-25 15:06:24,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:06:24,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 452 transitions. [2021-03-25 15:06:24,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,501 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,502 INFO L185 Difference]: Start difference. First operand has 42 places, 18 transitions, 98 flow. Second operand 4 states and 452 transitions. [2021-03-25 15:06:24,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 17 transitions, 96 flow [2021-03-25 15:06:24,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 17 transitions, 60 flow, removed 6 selfloop flow, removed 12 redundant places. [2021-03-25 15:06:24,502 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-03-25 15:06:24,502 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2021-03-25 15:06:24,503 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -8 predicate places. [2021-03-25 15:06:24,503 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:06:24,503 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-25 15:06:24,503 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-25 15:06:24,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 15:06:24,503 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 15:06:24,504 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:06:24,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 15:06:24,504 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 15:06:24,504 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 15:06:24,504 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:06:24,504 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 15:06:24,505 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 15:06:24,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:06:24,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 15:06:24,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 03:06:24 BasicIcfg [2021-03-25 15:06:24,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 15:06:24,509 INFO L168 Benchmark]: Toolchain (without parser) took 5236.14 ms. Allocated memory was 255.9 MB in the beginning and 457.2 MB in the end (delta: 201.3 MB). Free memory was 233.0 MB in the beginning and 345.0 MB in the end (delta: -112.0 MB). Peak memory consumption was 88.1 MB. Max. memory is 16.0 GB. [2021-03-25 15:06:24,509 INFO L168 Benchmark]: CDTParser took 0.12 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. [2021-03-25 15:06:24,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.88 ms. Allocated memory was 255.9 MB in the beginning and 379.6 MB in the end (delta: 123.7 MB). Free memory was 233.0 MB in the beginning and 342.0 MB in the end (delta: -109.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-25 15:06:24,510 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.30 ms. Allocated memory is still 379.6 MB. Free memory was 342.0 MB in the beginning and 339.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 15:06:24,510 INFO L168 Benchmark]: Boogie Preprocessor took 33.76 ms. Allocated memory is still 379.6 MB. Free memory was 339.9 MB in the beginning and 338.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 15:06:24,510 INFO L168 Benchmark]: RCFGBuilder took 396.24 ms. Allocated memory is still 379.6 MB. Free memory was 338.6 MB in the beginning and 351.8 MB in the end (delta: -13.2 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.0 GB. [2021-03-25 15:06:24,511 INFO L168 Benchmark]: TraceAbstraction took 4188.29 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 351.8 MB in the beginning and 345.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 83.1 MB. Max. memory is 16.0 GB. [2021-03-25 15:06:24,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 557.88 ms. Allocated memory was 255.9 MB in the beginning and 379.6 MB in the end (delta: 123.7 MB). Free memory was 233.0 MB in the beginning and 342.0 MB in the end (delta: -109.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.30 ms. Allocated memory is still 379.6 MB. Free memory was 342.0 MB in the beginning and 339.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.76 ms. Allocated memory is still 379.6 MB. Free memory was 339.9 MB in the beginning and 338.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 396.24 ms. Allocated memory is still 379.6 MB. Free memory was 338.6 MB in the beginning and 351.8 MB in the end (delta: -13.2 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4188.29 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 351.8 MB in the beginning and 345.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 83.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1536.6ms, 85 PlacesBefore, 40 PlacesAfterwards, 73 TransitionsBefore, 27 TransitionsAfterwards, 1392 CoEnabledTransitionPairs, 4 FixpointIterations, 17 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 46 TotalNumberOfCompositions, 1938 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1133, positive: 1081, positive conditional: 0, positive unconditional: 1081, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 882, positive: 846, positive conditional: 0, positive unconditional: 846, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 882, positive: 846, positive conditional: 0, positive unconditional: 846, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 882, positive: 835, positive conditional: 0, positive unconditional: 835, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 176, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 122, negative conditional: 0, negative unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1133, positive: 235, positive conditional: 0, positive unconditional: 235, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 882, unknown conditional: 0, unknown unconditional: 882] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 492.0ms, 39 PlacesBefore, 35 PlacesAfterwards, 31 TransitionsBefore, 27 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 480 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 288, positive: 257, positive conditional: 0, positive unconditional: 257, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 63, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 63, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 63, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 288, positive: 204, positive conditional: 0, positive unconditional: 204, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 63, unknown conditional: 0, unknown unconditional: 63] , Statistics on independence cache: Total cache size (in pairs): 150, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 487.7ms, 37 PlacesBefore, 36 PlacesAfterwards, 27 TransitionsBefore, 26 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 316 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 154, positive: 132, positive conditional: 0, positive unconditional: 132, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 154, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.7ms, 39 PlacesBefore, 39 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 128 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 49, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 49, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 152, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2ms, 38 PlacesBefore, 38 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 128 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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: 50, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 152, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51.1ms, 41 PlacesBefore, 40 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 178 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 179 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 98, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 6, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 98, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 121, Positive conditional cache size: 0, Positive unconditional cache size: 121, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3ms, 38 PlacesBefore, 38 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 108 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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: 47, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 121, Positive conditional cache size: 0, Positive unconditional cache size: 121, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.9ms, 43 PlacesBefore, 41 PlacesAfterwards, 26 TransitionsBefore, 25 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 289 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 126, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 126, positive: 104, positive conditional: 0, positive unconditional: 104, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.8ms, 44 PlacesBefore, 42 PlacesAfterwards, 20 TransitionsBefore, 18 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 104 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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] , ConditionTransformingIndependenceRelation.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: 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: 43, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8ms, 32 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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): 75, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - 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 5 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4039.8ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 375.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1629.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 57 SDtfs, 36 SDslu, 8 SDs, 0 SdLazy, 53 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 59.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 107.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=7, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.2ms SsaConstructionTime, 140.5ms SatisfiabilityAnalysisTime, 485.4ms InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 719 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...