/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/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 06:34:39,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 06:34:39,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 06:34:39,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 06:34:39,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 06:34:39,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 06:34:39,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 06:34:39,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 06:34:39,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 06:34:39,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 06:34:39,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 06:34:39,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 06:34:39,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 06:34:39,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 06:34:39,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 06:34:39,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 06:34:39,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 06:34:39,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 06:34:39,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 06:34:39,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 06:34:39,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 06:34:39,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 06:34:39,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 06:34:39,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 06:34:39,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 06:34:39,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 06:34:39,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 06:34:39,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 06:34:39,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 06:34:39,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 06:34:39,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 06:34:39,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 06:34:39,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 06:34:39,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 06:34:39,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 06:34:39,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 06:34:39,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 06:34:39,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 06:34:39,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 06:34:39,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 06:34:39,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 06:34:39,430 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 [2021-06-11 06:34:39,468 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 06:34:39,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 06:34:39,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 06:34:39,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 06:34:39,471 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 06:34:39,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 06:34:39,471 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 06:34:39,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 06:34:39,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 06:34:39,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 06:34:39,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 06:34:39,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 06:34:39,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 06:34:39,473 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 06:34:39,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 06:34:39,473 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 06:34:39,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 06:34:39,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 06:34:39,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 06:34:39,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 06:34:39,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 06:34:39,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:34:39,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 06:34:39,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 06:34:39,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 06:34:39,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 06:34:39,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 06:34:39,474 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 06:34:39,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 06:34:39,475 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 06:34:39,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 06:34:39,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 06:34:39,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 06:34:39,803 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 06:34:39,808 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 06:34:39,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2021-06-11 06:34:39,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b70683a9d/f08394fd4cbb42158fab0ce8aa745c33/FLAG944aea477 [2021-06-11 06:34:40,395 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 06:34:40,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2021-06-11 06:34:40,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b70683a9d/f08394fd4cbb42158fab0ce8aa745c33/FLAG944aea477 [2021-06-11 06:34:40,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b70683a9d/f08394fd4cbb42158fab0ce8aa745c33 [2021-06-11 06:34:40,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 06:34:40,881 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 06:34:40,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 06:34:40,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 06:34:40,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 06:34:40,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:34:40" (1/1) ... [2021-06-11 06:34:40,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@737ca86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:40, skipping insertion in model container [2021-06-11 06:34:40,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:34:40" (1/1) ... [2021-06-11 06:34:40,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 06:34:40,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 06:34:41,068 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/safe007_tso.opt.i[949,962] [2021-06-11 06:34:41,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:34:41,193 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 06:34:41,202 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/safe007_tso.opt.i[949,962] [2021-06-11 06:34:41,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:34:41,310 INFO L208 MainTranslator]: Completed translation [2021-06-11 06:34:41,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41 WrapperNode [2021-06-11 06:34:41,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 06:34:41,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 06:34:41,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 06:34:41,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 06:34:41,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41" (1/1) ... [2021-06-11 06:34:41,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41" (1/1) ... [2021-06-11 06:34:41,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 06:34:41,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 06:34:41,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 06:34:41,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 06:34:41,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41" (1/1) ... [2021-06-11 06:34:41,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41" (1/1) ... [2021-06-11 06:34:41,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41" (1/1) ... [2021-06-11 06:34:41,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41" (1/1) ... [2021-06-11 06:34:41,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41" (1/1) ... [2021-06-11 06:34:41,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41" (1/1) ... [2021-06-11 06:34:41,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41" (1/1) ... [2021-06-11 06:34:41,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 06:34:41,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 06:34:41,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 06:34:41,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 06:34:41,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41" (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 [2021-06-11 06:34:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 06:34:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 06:34:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 06:34:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 06:34:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 06:34:41,471 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 06:34:41,471 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 06:34:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 06:34:41,472 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 06:34:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 06:34:41,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 06:34:41,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 06:34:41,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 06:34:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 06:34:41,473 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 06:34:41,866 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 06:34:41,866 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 06:34:41,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:34:41 BoogieIcfgContainer [2021-06-11 06:34:41,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 06:34:41,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 06:34:41,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 06:34:41,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 06:34:41,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 06:34:40" (1/3) ... [2021-06-11 06:34:41,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd9aecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:34:41, skipping insertion in model container [2021-06-11 06:34:41,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:34:41" (2/3) ... [2021-06-11 06:34:41,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd9aecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:34:41, skipping insertion in model container [2021-06-11 06:34:41,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:34:41" (3/3) ... [2021-06-11 06:34:41,875 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2021-06-11 06:34:41,880 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 06:34:41,883 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 06:34:41,884 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 06:34:41,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,920 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,920 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,920 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,920 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,920 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,920 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,921 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,922 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,923 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,923 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,923 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,926 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,926 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,927 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,927 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,927 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,929 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,931 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,931 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,931 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,931 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,940 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,940 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,941 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,941 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,944 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,944 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,944 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,944 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:34:41,945 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 06:34:41,960 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 06:34:41,978 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 06:34:41,978 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 06:34:41,978 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 06:34:41,978 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 06:34:41,978 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 06:34:41,978 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 06:34:41,979 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 06:34:41,979 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 06:34:41,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-06-11 06:34:42,021 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-06-11 06:34:42,021 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:34:42,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-11 06:34:42,024 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 167 flow [2021-06-11 06:34:42,027 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 61 transitions, 131 flow [2021-06-11 06:34:42,031 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:34:42,043 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 131 flow [2021-06-11 06:34:42,048 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 131 flow [2021-06-11 06:34:42,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 131 flow [2021-06-11 06:34:42,078 INFO L129 PetriNetUnfolder]: 1/61 cut-off events. [2021-06-11 06:34:42,079 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:34:42,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-11 06:34:42,082 INFO L151 LiptonReduction]: Number of co-enabled transitions 864 [2021-06-11 06:34:42,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:34:42,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:42,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:34:42,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:42,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:34:42,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:42,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:34:42,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:34:42,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:42,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:34:42,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:34:42,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:42,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:42,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:34:43,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:43,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:43,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:34:43,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 06:34:43,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:34:43,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:43,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,269 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-11 06:34:43,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:43,380 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 06:34:43,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:43,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:34:43,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:43,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:34:43,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:43,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:43,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:43,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:43,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:44,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:44,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:44,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:44,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:34:44,315 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-06-11 06:34:44,524 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-06-11 06:34:44,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:44,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:34:44,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:44,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:44,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 06:34:44,821 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-06-11 06:34:45,047 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-06-11 06:34:45,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:45,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:34:45,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:45,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:45,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:34:45,126 INFO L163 LiptonReduction]: Checked pairs total: 1526 [2021-06-11 06:34:45,126 INFO L165 LiptonReduction]: Total number of compositions: 47 [2021-06-11 06:34:45,128 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3100 [2021-06-11 06:34:45,135 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-06-11 06:34:45,135 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:34:45,135 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:34:45,136 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:34:45,136 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:34:45,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:34:45,140 INFO L82 PathProgramCache]: Analyzing trace with hash 508470380, now seen corresponding path program 1 times [2021-06-11 06:34:45,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:34:45,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745601065] [2021-06-11 06:34:45,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:34:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:34:45,319 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:34:45,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:45,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:34:45,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745601065] [2021-06-11 06:34:45,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:34:45,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:34:45,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340351947] [2021-06-11 06:34:45,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:34:45,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:34:45,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:34:45,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:34:45,356 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 123 [2021-06-11 06:34:45,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2021-06-11 06:34:45,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:34:45,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 123 [2021-06-11 06:34:45,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:34:45,389 INFO L129 PetriNetUnfolder]: 14/55 cut-off events. [2021-06-11 06:34:45,390 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:34:45,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 55 events. 14/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 168 event pairs, 6 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 85. Up to 29 conditions per place. [2021-06-11 06:34:45,392 INFO L132 encePairwiseOnDemand]: 118/123 looper letters, 4 selfloop transitions, 4 changer transitions 0/20 dead transitions. [2021-06-11 06:34:45,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 20 transitions, 65 flow [2021-06-11 06:34:45,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:34:45,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:34:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2021-06-11 06:34:45,408 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7967479674796748 [2021-06-11 06:34:45,408 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2021-06-11 06:34:45,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2021-06-11 06:34:45,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:34:45,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2021-06-11 06:34:45,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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) [2021-06-11 06:34:45,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2021-06-11 06:34:45,425 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2021-06-11 06:34:45,426 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 43 flow. Second operand 3 states and 294 transitions. [2021-06-11 06:34:45,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 20 transitions, 65 flow [2021-06-11 06:34:45,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 62 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 06:34:45,429 INFO L241 Difference]: Finished difference. Result has 27 places, 20 transitions, 66 flow [2021-06-11 06:34:45,431 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2021-06-11 06:34:45,431 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2021-06-11 06:34:45,432 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:34:45,432 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 20 transitions, 66 flow [2021-06-11 06:34:45,433 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 20 transitions, 66 flow [2021-06-11 06:34:45,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 20 transitions, 66 flow [2021-06-11 06:34:45,446 INFO L129 PetriNetUnfolder]: 14/57 cut-off events. [2021-06-11 06:34:45,446 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:34:45,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 57 events. 14/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 176 event pairs, 6 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 90. Up to 29 conditions per place. [2021-06-11 06:34:45,447 INFO L151 LiptonReduction]: Number of co-enabled transitions 128 [2021-06-11 06:34:45,449 INFO L163 LiptonReduction]: Checked pairs total: 72 [2021-06-11 06:34:45,449 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:34:45,449 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-06-11 06:34:45,450 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 66 flow [2021-06-11 06:34:45,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2021-06-11 06:34:45,450 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:34:45,450 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:34:45,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 06:34:45,451 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:34:45,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:34:45,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1417288232, now seen corresponding path program 1 times [2021-06-11 06:34:45,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:34:45,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933756203] [2021-06-11 06:34:45,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:34:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:34:45,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:45,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:34:45,517 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:34:45,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:34:45,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933756203] [2021-06-11 06:34:45,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:34:45,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:34:45,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314500648] [2021-06-11 06:34:45,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:34:45,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:34:45,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:34:45,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:34:45,533 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 123 [2021-06-11 06:34:45,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:34:45,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:34:45,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 123 [2021-06-11 06:34:45,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:34:45,555 INFO L129 PetriNetUnfolder]: 9/41 cut-off events. [2021-06-11 06:34:45,555 INFO L130 PetriNetUnfolder]: For 11/41 co-relation queries the response was YES. [2021-06-11 06:34:45,555 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 41 events. 9/41 cut-off events. For 11/41 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 103 event pairs, 0 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 86. Up to 21 conditions per place. [2021-06-11 06:34:45,556 INFO L132 encePairwiseOnDemand]: 120/123 looper letters, 7 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2021-06-11 06:34:45,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 94 flow [2021-06-11 06:34:45,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:34:45,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:34:45,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 293 transitions. [2021-06-11 06:34:45,558 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7940379403794038 [2021-06-11 06:34:45,558 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 293 transitions. [2021-06-11 06:34:45,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 293 transitions. [2021-06-11 06:34:45,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:34:45,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 293 transitions. [2021-06-11 06:34:45,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-06-11 06:34:45,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2021-06-11 06:34:45,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2021-06-11 06:34:45,562 INFO L185 Difference]: Start difference. First operand has 27 places, 20 transitions, 66 flow. Second operand 3 states and 293 transitions. [2021-06-11 06:34:45,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 94 flow [2021-06-11 06:34:45,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 22 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:34:45,563 INFO L241 Difference]: Finished difference. Result has 29 places, 20 transitions, 73 flow [2021-06-11 06:34:45,564 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2021-06-11 06:34:45,564 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2021-06-11 06:34:45,564 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:34:45,564 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 20 transitions, 73 flow [2021-06-11 06:34:45,565 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 20 transitions, 73 flow [2021-06-11 06:34:45,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 20 transitions, 73 flow [2021-06-11 06:34:45,571 INFO L129 PetriNetUnfolder]: 9/45 cut-off events. [2021-06-11 06:34:45,571 INFO L130 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2021-06-11 06:34:45,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 45 events. 9/45 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 122 event pairs, 3 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 79. Up to 21 conditions per place. [2021-06-11 06:34:45,572 INFO L151 LiptonReduction]: Number of co-enabled transitions 128 [2021-06-11 06:34:45,575 INFO L163 LiptonReduction]: Checked pairs total: 72 [2021-06-11 06:34:45,575 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:34:45,575 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-06-11 06:34:45,576 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 73 flow [2021-06-11 06:34:45,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:34:45,577 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:34:45,577 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:34:45,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 06:34:45,579 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:34:45,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:34:45,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1417288077, now seen corresponding path program 1 times [2021-06-11 06:34:45,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:34:45,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266040391] [2021-06-11 06:34:45,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:34:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:34:45,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:45,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:34:45,668 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:34:45,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:45,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:34:45,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266040391] [2021-06-11 06:34:45,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:34:45,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:34:45,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397992565] [2021-06-11 06:34:45,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:34:45,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:34:45,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:34:45,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:34:45,680 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 123 [2021-06-11 06:34:45,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:34:45,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:34:45,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 123 [2021-06-11 06:34:45,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:34:45,699 INFO L129 PetriNetUnfolder]: 6/36 cut-off events. [2021-06-11 06:34:45,699 INFO L130 PetriNetUnfolder]: For 26/59 co-relation queries the response was YES. [2021-06-11 06:34:45,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 36 events. 6/36 cut-off events. For 26/59 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 87 event pairs, 2 based on Foata normal form. 6/41 useless extension candidates. Maximal degree in co-relation 78. Up to 16 conditions per place. [2021-06-11 06:34:45,700 INFO L132 encePairwiseOnDemand]: 120/123 looper letters, 7 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2021-06-11 06:34:45,700 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 104 flow [2021-06-11 06:34:45,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:34:45,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:34:45,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 293 transitions. [2021-06-11 06:34:45,701 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7940379403794038 [2021-06-11 06:34:45,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 293 transitions. [2021-06-11 06:34:45,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 293 transitions. [2021-06-11 06:34:45,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:34:45,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 293 transitions. [2021-06-11 06:34:45,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-06-11 06:34:45,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2021-06-11 06:34:45,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2021-06-11 06:34:45,704 INFO L185 Difference]: Start difference. First operand has 29 places, 20 transitions, 73 flow. Second operand 3 states and 293 transitions. [2021-06-11 06:34:45,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 104 flow [2021-06-11 06:34:45,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:34:45,705 INFO L241 Difference]: Finished difference. Result has 30 places, 20 transitions, 78 flow [2021-06-11 06:34:45,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2021-06-11 06:34:45,706 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2021-06-11 06:34:45,706 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:34:45,706 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 20 transitions, 78 flow [2021-06-11 06:34:45,707 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 20 transitions, 78 flow [2021-06-11 06:34:45,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 20 transitions, 78 flow [2021-06-11 06:34:45,713 INFO L129 PetriNetUnfolder]: 6/38 cut-off events. [2021-06-11 06:34:45,714 INFO L130 PetriNetUnfolder]: For 10/18 co-relation queries the response was YES. [2021-06-11 06:34:45,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 38 events. 6/38 cut-off events. For 10/18 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 96 event pairs, 2 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 71. Up to 16 conditions per place. [2021-06-11 06:34:45,715 INFO L151 LiptonReduction]: Number of co-enabled transitions 128 [2021-06-11 06:34:45,717 INFO L163 LiptonReduction]: Checked pairs total: 72 [2021-06-11 06:34:45,717 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:34:45,718 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 06:34:45,720 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 78 flow [2021-06-11 06:34:45,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:34:45,720 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:34:45,721 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:34:45,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 06:34:45,721 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:34:45,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:34:45,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1780057341, now seen corresponding path program 1 times [2021-06-11 06:34:45,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:34:45,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796048262] [2021-06-11 06:34:45,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:34:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:34:45,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:45,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:34:45,782 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:34:45,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:34:45,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796048262] [2021-06-11 06:34:45,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:34:45,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:34:45,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49917218] [2021-06-11 06:34:45,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:34:45,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:34:45,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:34:45,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:34:45,793 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 123 [2021-06-11 06:34:45,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2021-06-11 06:34:45,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:34:45,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2021-06-11 06:34:45,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:34:45,835 INFO L129 PetriNetUnfolder]: 11/57 cut-off events. [2021-06-11 06:34:45,835 INFO L130 PetriNetUnfolder]: For 47/92 co-relation queries the response was YES. [2021-06-11 06:34:45,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 57 events. 11/57 cut-off events. For 47/92 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 206 event pairs, 0 based on Foata normal form. 11/66 useless extension candidates. Maximal degree in co-relation 140. Up to 24 conditions per place. [2021-06-11 06:34:45,836 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 7 selfloop transitions, 9 changer transitions 0/27 dead transitions. [2021-06-11 06:34:45,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 150 flow [2021-06-11 06:34:45,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:34:45,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:34:45,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 466 transitions. [2021-06-11 06:34:45,838 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7577235772357723 [2021-06-11 06:34:45,838 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 466 transitions. [2021-06-11 06:34:45,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 466 transitions. [2021-06-11 06:34:45,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:34:45,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 466 transitions. [2021-06-11 06:34:45,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.2) internal successors, (466), 5 states have internal predecessors, (466), 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) [2021-06-11 06:34:45,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 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) [2021-06-11 06:34:45,841 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 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) [2021-06-11 06:34:45,841 INFO L185 Difference]: Start difference. First operand has 30 places, 20 transitions, 78 flow. Second operand 5 states and 466 transitions. [2021-06-11 06:34:45,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 150 flow [2021-06-11 06:34:45,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:34:45,843 INFO L241 Difference]: Finished difference. Result has 35 places, 25 transitions, 138 flow [2021-06-11 06:34:45,843 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=138, PETRI_PLACES=35, PETRI_TRANSITIONS=25} [2021-06-11 06:34:45,843 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2021-06-11 06:34:45,844 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:34:45,844 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 25 transitions, 138 flow [2021-06-11 06:34:45,844 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 25 transitions, 138 flow [2021-06-11 06:34:45,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 138 flow [2021-06-11 06:34:45,851 INFO L129 PetriNetUnfolder]: 9/55 cut-off events. [2021-06-11 06:34:45,852 INFO L130 PetriNetUnfolder]: For 44/70 co-relation queries the response was YES. [2021-06-11 06:34:45,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 55 events. 9/55 cut-off events. For 44/70 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 212 event pairs, 0 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 140. Up to 22 conditions per place. [2021-06-11 06:34:45,854 INFO L151 LiptonReduction]: Number of co-enabled transitions 166 [2021-06-11 06:34:45,856 INFO L163 LiptonReduction]: Checked pairs total: 71 [2021-06-11 06:34:45,856 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:34:45,856 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 06:34:45,857 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 138 flow [2021-06-11 06:34:45,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2021-06-11 06:34:45,858 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:34:45,858 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:34:45,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 06:34:45,858 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:34:45,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:34:45,858 INFO L82 PathProgramCache]: Analyzing trace with hash -986054585, now seen corresponding path program 2 times [2021-06-11 06:34:45,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:34:45,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701760325] [2021-06-11 06:34:45,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:34:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:34:45,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:45,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:34:45,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:45,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:34:45,913 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:34:45,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:34:45,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701760325] [2021-06-11 06:34:45,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:34:45,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:34:45,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248527825] [2021-06-11 06:34:45,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:34:45,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:34:45,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:34:45,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:34:45,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 123 [2021-06-11 06:34:45,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:34:45,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:34:45,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2021-06-11 06:34:45,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:34:45,947 INFO L129 PetriNetUnfolder]: 8/56 cut-off events. [2021-06-11 06:34:45,948 INFO L130 PetriNetUnfolder]: For 117/188 co-relation queries the response was YES. [2021-06-11 06:34:45,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 56 events. 8/56 cut-off events. For 117/188 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 220 event pairs, 0 based on Foata normal form. 7/61 useless extension candidates. Maximal degree in co-relation 171. Up to 22 conditions per place. [2021-06-11 06:34:45,948 INFO L132 encePairwiseOnDemand]: 119/123 looper letters, 7 selfloop transitions, 3 changer transitions 6/27 dead transitions. [2021-06-11 06:34:45,948 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 27 transitions, 188 flow [2021-06-11 06:34:45,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:34:45,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:34:45,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 06:34:45,950 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7540650406504065 [2021-06-11 06:34:45,950 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 06:34:45,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 06:34:45,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:34:45,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 06:34:45,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-06-11 06:34:45,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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) [2021-06-11 06:34:45,953 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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) [2021-06-11 06:34:45,953 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 138 flow. Second operand 4 states and 371 transitions. [2021-06-11 06:34:45,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 27 transitions, 188 flow [2021-06-11 06:34:45,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 27 transitions, 183 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-06-11 06:34:45,955 INFO L241 Difference]: Finished difference. Result has 39 places, 19 transitions, 105 flow [2021-06-11 06:34:45,955 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=34, 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=105, PETRI_PLACES=39, PETRI_TRANSITIONS=19} [2021-06-11 06:34:45,955 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 12 predicate places. [2021-06-11 06:34:45,955 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:34:45,955 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 19 transitions, 105 flow [2021-06-11 06:34:45,955 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 19 transitions, 105 flow [2021-06-11 06:34:45,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 19 transitions, 105 flow [2021-06-11 06:34:45,958 INFO L129 PetriNetUnfolder]: 2/25 cut-off events. [2021-06-11 06:34:45,958 INFO L130 PetriNetUnfolder]: For 24/27 co-relation queries the response was YES. [2021-06-11 06:34:45,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 25 events. 2/25 cut-off events. For 24/27 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 1 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 64. Up to 9 conditions per place. [2021-06-11 06:34:45,959 INFO L151 LiptonReduction]: Number of co-enabled transitions 114 [2021-06-11 06:34:45,960 INFO L163 LiptonReduction]: Checked pairs total: 47 [2021-06-11 06:34:45,960 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:34:45,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-06-11 06:34:45,961 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 19 transitions, 105 flow [2021-06-11 06:34:45,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:34:45,961 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:34:45,962 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:34:45,962 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 06:34:45,962 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:34:45,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:34:45,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1944153907, now seen corresponding path program 1 times [2021-06-11 06:34:45,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:34:45,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928074972] [2021-06-11 06:34:45,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:34:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:34:46,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:46,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:34:46,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:46,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:34:46,024 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:34:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:34:46,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:34:46,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928074972] [2021-06-11 06:34:46,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:34:46,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:34:46,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177294156] [2021-06-11 06:34:46,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:34:46,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:34:46,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:34:46,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:34:46,034 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 123 [2021-06-11 06:34:46,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 19 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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) [2021-06-11 06:34:46,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:34:46,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2021-06-11 06:34:46,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:34:46,055 INFO L129 PetriNetUnfolder]: 3/36 cut-off events. [2021-06-11 06:34:46,055 INFO L130 PetriNetUnfolder]: For 89/92 co-relation queries the response was YES. [2021-06-11 06:34:46,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 36 events. 3/36 cut-off events. For 89/92 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 102 event pairs, 0 based on Foata normal form. 3/39 useless extension candidates. Maximal degree in co-relation 107. Up to 12 conditions per place. [2021-06-11 06:34:46,055 INFO L132 encePairwiseOnDemand]: 119/123 looper letters, 3 selfloop transitions, 3 changer transitions 5/22 dead transitions. [2021-06-11 06:34:46,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 22 transitions, 153 flow [2021-06-11 06:34:46,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:34:46,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:34:46,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 06:34:46,057 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7540650406504065 [2021-06-11 06:34:46,057 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 06:34:46,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 06:34:46,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:34:46,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 06:34:46,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-06-11 06:34:46,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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) [2021-06-11 06:34:46,059 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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) [2021-06-11 06:34:46,059 INFO L185 Difference]: Start difference. First operand has 38 places, 19 transitions, 105 flow. Second operand 4 states and 371 transitions. [2021-06-11 06:34:46,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 22 transitions, 153 flow [2021-06-11 06:34:46,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 22 transitions, 107 flow, removed 11 selfloop flow, removed 9 redundant places. [2021-06-11 06:34:46,063 INFO L241 Difference]: Finished difference. Result has 34 places, 17 transitions, 74 flow [2021-06-11 06:34:46,063 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=34, PETRI_TRANSITIONS=17} [2021-06-11 06:34:46,063 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2021-06-11 06:34:46,063 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:34:46,063 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 17 transitions, 74 flow [2021-06-11 06:34:46,064 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 17 transitions, 74 flow [2021-06-11 06:34:46,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 17 transitions, 74 flow [2021-06-11 06:34:46,066 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-11 06:34:46,066 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-06-11 06:34:46,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 17 events. 0/17 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-06-11 06:34:46,067 INFO L151 LiptonReduction]: Number of co-enabled transitions 80 [2021-06-11 06:34:46,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:46,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:34:46,102 INFO L163 LiptonReduction]: Checked pairs total: 36 [2021-06-11 06:34:46,102 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 06:34:46,102 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-06-11 06:34:46,103 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 72 flow [2021-06-11 06:34:46,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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) [2021-06-11 06:34:46,104 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:34:46,104 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:34:46,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 06:34:46,104 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:34:46,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:34:46,104 INFO L82 PathProgramCache]: Analyzing trace with hash 77753859, now seen corresponding path program 1 times [2021-06-11 06:34:46,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:34:46,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701908596] [2021-06-11 06:34:46,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:34:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:34:46,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:46,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:34:46,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:34:46,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:34:46,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:34:46,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701908596] [2021-06-11 06:34:46,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:34:46,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:34:46,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72956781] [2021-06-11 06:34:46,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:34:46,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:34:46,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:34:46,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:34:46,164 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 124 [2021-06-11 06:34:46,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:34:46,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:34:46,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 124 [2021-06-11 06:34:46,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:34:46,180 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-06-11 06:34:46,180 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2021-06-11 06:34:46,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 15 events. 0/15 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 2/17 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-06-11 06:34:46,181 INFO L132 encePairwiseOnDemand]: 121/124 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2021-06-11 06:34:46,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 15 transitions, 66 flow [2021-06-11 06:34:46,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:34:46,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:34:46,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 393 transitions. [2021-06-11 06:34:46,182 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7923387096774194 [2021-06-11 06:34:46,182 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 393 transitions. [2021-06-11 06:34:46,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 393 transitions. [2021-06-11 06:34:46,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:34:46,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 393 transitions. [2021-06-11 06:34:46,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 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) [2021-06-11 06:34:46,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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) [2021-06-11 06:34:46,185 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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) [2021-06-11 06:34:46,185 INFO L185 Difference]: Start difference. First operand has 33 places, 16 transitions, 72 flow. Second operand 4 states and 393 transitions. [2021-06-11 06:34:46,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 15 transitions, 66 flow [2021-06-11 06:34:46,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 15 transitions, 46 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-06-11 06:34:46,186 INFO L241 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2021-06-11 06:34:46,186 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2021-06-11 06:34:46,186 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2021-06-11 06:34:46,186 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:34:46,186 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 0 transitions, 0 flow [2021-06-11 06:34:46,187 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 0 transitions, 0 flow [2021-06-11 06:34:46,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 06:34:46,187 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 06:34:46,187 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:34:46,187 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. [2021-06-11 06:34:46,187 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 06:34:46,187 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:34:46,187 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:34:46,187 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 06:34:46,188 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 06:34:46,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:34:46,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 06:34:46,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 06:34:46 BasicIcfg [2021-06-11 06:34:46,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 06:34:46,193 INFO L168 Benchmark]: Toolchain (without parser) took 5311.61 ms. Allocated memory was 358.6 MB in the beginning and 438.3 MB in the end (delta: 79.7 MB). Free memory was 321.3 MB in the beginning and 405.7 MB in the end (delta: -84.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:34:46,193 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 358.6 MB. Free memory was 339.6 MB in the beginning and 339.5 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:34:46,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.51 ms. Allocated memory is still 358.6 MB. Free memory was 321.2 MB in the beginning and 320.8 MB in the end (delta: 385.0 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-06-11 06:34:46,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.77 ms. Allocated memory is still 358.6 MB. Free memory was 320.8 MB in the beginning and 318.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:34:46,197 INFO L168 Benchmark]: Boogie Preprocessor took 29.94 ms. Allocated memory is still 358.6 MB. Free memory was 318.7 MB in the beginning and 317.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:34:46,197 INFO L168 Benchmark]: RCFGBuilder took 468.88 ms. Allocated memory is still 358.6 MB. Free memory was 317.7 MB in the beginning and 292.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-11 06:34:46,197 INFO L168 Benchmark]: TraceAbstraction took 4322.45 ms. Allocated memory was 358.6 MB in the beginning and 438.3 MB in the end (delta: 79.7 MB). Free memory was 291.4 MB in the beginning and 405.7 MB in the end (delta: -114.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:34:46,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 358.6 MB. Free memory was 339.6 MB in the beginning and 339.5 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 429.51 ms. Allocated memory is still 358.6 MB. Free memory was 321.2 MB in the beginning and 320.8 MB in the end (delta: 385.0 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.77 ms. Allocated memory is still 358.6 MB. Free memory was 320.8 MB in the beginning and 318.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.94 ms. Allocated memory is still 358.6 MB. Free memory was 318.7 MB in the beginning and 317.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 468.88 ms. Allocated memory is still 358.6 MB. Free memory was 317.7 MB in the beginning and 292.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4322.45 ms. Allocated memory was 358.6 MB in the beginning and 438.3 MB in the end (delta: 79.7 MB). Free memory was 291.4 MB in the beginning and 405.7 MB in the end (delta: -114.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3077.7ms, 70 PlacesBefore, 27 PlacesAfterwards, 61 TransitionsBefore, 17 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 47 TotalNumberOfCompositions, 1526 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 953, positive: 869, positive conditional: 0, positive unconditional: 869, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 559, positive: 531, positive conditional: 0, positive unconditional: 531, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 559, positive: 531, positive conditional: 0, positive unconditional: 531, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 559, positive: 523, positive conditional: 0, positive unconditional: 523, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 115, negative conditional: 0, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 953, positive: 338, positive conditional: 0, positive unconditional: 338, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 559, unknown conditional: 0, unknown unconditional: 559] , Statistics on independence cache: Total cache size (in pairs): 883, Positive cache size: 855, Positive conditional cache size: 0, Positive unconditional cache size: 855, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.4ms, 27 PlacesBefore, 27 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 41, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 887, Positive cache size: 859, Positive conditional cache size: 0, Positive unconditional cache size: 859, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.4ms, 29 PlacesBefore, 29 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 7, negative conditional: 0, negative unconditional: 7, 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: 38, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 888, Positive cache size: 860, Positive conditional cache size: 0, Positive unconditional cache size: 860, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6ms, 30 PlacesBefore, 30 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 7, negative conditional: 0, negative unconditional: 7, 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: 39, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 888, Positive cache size: 860, Positive conditional cache size: 0, Positive unconditional cache size: 860, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1ms, 35 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 71 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 33, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 891, Positive cache size: 863, Positive conditional cache size: 0, Positive unconditional cache size: 863, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.9ms, 39 PlacesBefore, 38 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 47 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 893, Positive cache size: 865, Positive conditional cache size: 0, Positive unconditional cache size: 865, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.3ms, 34 PlacesBefore, 33 PlacesAfterwards, 17 TransitionsBefore, 16 TransitionsAfterwards, 80 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 25, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 923, Positive cache size: 894, Positive conditional cache size: 0, Positive unconditional cache size: 894, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 27 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): 923, Positive cache size: 894, Positive conditional cache size: 0, Positive unconditional cache size: 894, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4214.9ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 276.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3153.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 36 SDtfs, 22 SDslu, 12 SDs, 0 SdLazy, 42 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 61.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 88.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=4, InterpolantAutomatonStates: 26, 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: 47.8ms SsaConstructionTime, 144.3ms SatisfiabilityAnalysisTime, 340.8ms InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 342 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...