/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:50:53,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:50:53,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:50:53,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:50:53,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:50:53,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:50:53,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:50:53,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:50:53,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:50:53,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:50:53,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:50:53,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:50:53,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:50:53,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:50:53,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:50:53,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:50:53,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:50:53,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:50:53,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:50:53,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:50:53,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:50:53,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:50:53,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:50:53,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:50:53,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:50:53,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:50:53,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:50:53,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:50:53,395 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:50:53,448 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:50:53,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:50:53,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:50:53,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:50:53,454 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:50:53,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:50:53,455 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:50:53,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:50:53,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:50:53,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:50:53,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:50:53,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:50:53,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:50:53,457 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:50:53,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:50:53,458 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:50:53,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:50:53,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:50:53,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:50:53,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:50:53,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:50:53,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:50:53,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:50:53,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:50:53,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:50:53,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:50:53,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:50:53,461 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:50:53,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:50:53,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:50:53,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:50:53,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:50:53,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:50:53,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:50:53,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:50:53,894 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:50:53,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2021-04-28 23:50:53,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8095fde/904c558f1a514429924461cba989017c/FLAGf35ef184e [2021-04-28 23:50:54,674 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:50:54,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2021-04-28 23:50:54,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8095fde/904c558f1a514429924461cba989017c/FLAGf35ef184e [2021-04-28 23:50:54,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8095fde/904c558f1a514429924461cba989017c [2021-04-28 23:50:54,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:50:55,003 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:50:55,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:50:55,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:50:55,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:50:55,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:50:54" (1/1) ... [2021-04-28 23:50:55,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6506969c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55, skipping insertion in model container [2021-04-28 23:50:55,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:50:54" (1/1) ... [2021-04-28 23:50:55,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:50:55,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:50:55,276 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/safe013_tso.opt.i[949,962] [2021-04-28 23:50:55,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:50:55,579 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:50:55,596 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/safe013_tso.opt.i[949,962] [2021-04-28 23:50:55,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:50:55,752 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:50:55,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55 WrapperNode [2021-04-28 23:50:55,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:50:55,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:50:55,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:50:55,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:50:55,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55" (1/1) ... [2021-04-28 23:50:55,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55" (1/1) ... [2021-04-28 23:50:55,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:50:55,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:50:55,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:50:55,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:50:55,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55" (1/1) ... [2021-04-28 23:50:55,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55" (1/1) ... [2021-04-28 23:50:55,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55" (1/1) ... [2021-04-28 23:50:55,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55" (1/1) ... [2021-04-28 23:50:55,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55" (1/1) ... [2021-04-28 23:50:55,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55" (1/1) ... [2021-04-28 23:50:55,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55" (1/1) ... [2021-04-28 23:50:55,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:50:55,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:50:55,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:50:55,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:50:55,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55" (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 [2021-04-28 23:50:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:50:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:50:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:50:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:50:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:50:55,949 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:50:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:50:55,949 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:50:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:50:55,949 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:50:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:50:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:50:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:50:55,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:50:55,952 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:50:56,435 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:50:56,435 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:50:56,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:50:56 BoogieIcfgContainer [2021-04-28 23:50:56,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:50:56,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:50:56,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:50:56,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:50:56,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:50:54" (1/3) ... [2021-04-28 23:50:56,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ed711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:50:56, skipping insertion in model container [2021-04-28 23:50:56,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:55" (2/3) ... [2021-04-28 23:50:56,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ed711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:50:56, skipping insertion in model container [2021-04-28 23:50:56,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:50:56" (3/3) ... [2021-04-28 23:50:56,447 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt.i [2021-04-28 23:50:56,454 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:50:56,460 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:50:56,461 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:50:56,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,500 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,500 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,500 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,501 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,502 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,502 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,503 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,503 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,503 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,503 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,505 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,506 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,506 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,506 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,506 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,506 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,508 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,510 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,511 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,511 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,511 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,516 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,517 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,520 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,520 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:56,523 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:50:56,550 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:50:56,578 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:50:56,578 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:50:56,578 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:50:56,579 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:50:56,579 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:50:56,579 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:50:56,579 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:50:56,579 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:50:56,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:50:56,649 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-04-28 23:50:56,649 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:50:56,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:50:56,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:50:56,660 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-04-28 23:50:56,662 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:50:56,679 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:50:56,683 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:50:56,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-04-28 23:50:56,705 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-04-28 23:50:56,705 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:50:56,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:50:56,710 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:51:01,367 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:51:01,520 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:51:01,668 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:51:01,821 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:51:01,990 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:51:02,167 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:51:02,718 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:51:03,837 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:51:04,058 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:51:04,293 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:04,550 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:04,769 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:04,953 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:05,150 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:51:05,357 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:51:05,587 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:05,812 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:06,050 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:06,296 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:06,501 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:51:06,688 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:51:06,978 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-28 23:51:07,279 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-28 23:51:07,383 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-28 23:51:07,555 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:07,788 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:07,979 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:08,189 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:08,474 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-28 23:51:08,787 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-28 23:51:09,052 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:09,289 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:09,395 INFO L158 LiptonReduction]: Checked pairs total: 6566 [2021-04-28 23:51:09,395 INFO L160 LiptonReduction]: Total number of compositions: 99 [2021-04-28 23:51:09,399 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12739 [2021-04-28 23:51:09,421 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-04-28 23:51:09,421 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:09,422 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:09,422 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:09,423 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:09,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:09,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1999117470, now seen corresponding path program 1 times [2021-04-28 23:51:09,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:09,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125401182] [2021-04-28 23:51:09,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:09,722 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:51:09,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:09,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125401182] [2021-04-28 23:51:09,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:09,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:51:09,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737554103] [2021-04-28 23:51:09,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:51:09,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:09,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:51:09,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:51:09,773 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 174 [2021-04-28 23:51:09,777 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 72 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2021-04-28 23:51:09,777 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:09,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 174 [2021-04-28 23:51:09,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:09,910 INFO L129 PetriNetUnfolder]: 84/347 cut-off events. [2021-04-28 23:51:09,910 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:09,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 347 events. 84/347 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2633 event pairs, 33 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 493. Up to 127 conditions per place. [2021-04-28 23:51:09,915 INFO L132 encePairwiseOnDemand]: 155/174 looper letters, 4 selfloop transitions, 5 changer transitions 40/80 dead transitions. [2021-04-28 23:51:09,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 80 transitions, 235 flow [2021-04-28 23:51:09,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:51:09,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:51:09,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2021-04-28 23:51:09,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7049808429118773 [2021-04-28 23:51:09,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2021-04-28 23:51:09,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2021-04-28 23:51:09,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:09,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2021-04-28 23:51:09,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2021-04-28 23:51:09,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,954 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,956 INFO L185 Difference]: Start difference. First operand has 82 places, 72 transitions, 153 flow. Second operand 3 states and 368 transitions. [2021-04-28 23:51:09,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 80 transitions, 235 flow [2021-04-28 23:51:09,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 80 transitions, 232 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:51:09,964 INFO L241 Difference]: Finished difference. Result has 82 places, 40 transitions, 109 flow [2021-04-28 23:51:09,966 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=82, PETRI_TRANSITIONS=40} [2021-04-28 23:51:09,967 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2021-04-28 23:51:09,968 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:09,968 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 40 transitions, 109 flow [2021-04-28 23:51:09,968 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 40 transitions, 109 flow [2021-04-28 23:51:09,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 40 transitions, 109 flow [2021-04-28 23:51:09,981 INFO L129 PetriNetUnfolder]: 11/87 cut-off events. [2021-04-28 23:51:09,982 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 23:51:09,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 87 events. 11/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 420 event pairs, 7 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 126. Up to 26 conditions per place. [2021-04-28 23:51:09,985 INFO L146 LiptonReduction]: Number of co-enabled transitions 854 [2021-04-28 23:51:10,000 INFO L158 LiptonReduction]: Checked pairs total: 261 [2021-04-28 23:51:10,000 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:10,000 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-04-28 23:51:10,002 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 109 flow [2021-04-28 23:51:10,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2021-04-28 23:51:10,003 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:10,004 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:10,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:51:10,004 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:10,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:10,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1277135982, now seen corresponding path program 1 times [2021-04-28 23:51:10,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:10,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378059054] [2021-04-28 23:51:10,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:10,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:10,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:10,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378059054] [2021-04-28 23:51:10,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:10,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:51:10,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419385720] [2021-04-28 23:51:10,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:51:10,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:10,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:51:10,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:51:10,153 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 174 [2021-04-28 23:51:10,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2021-04-28 23:51:10,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:10,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 174 [2021-04-28 23:51:10,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:10,185 INFO L129 PetriNetUnfolder]: 8/79 cut-off events. [2021-04-28 23:51:10,185 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-04-28 23:51:10,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 79 events. 8/79 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 350 event pairs, 4 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 121. Up to 21 conditions per place. [2021-04-28 23:51:10,191 INFO L132 encePairwiseOnDemand]: 171/174 looper letters, 1 selfloop transitions, 3 changer transitions 1/40 dead transitions. [2021-04-28 23:51:10,192 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 40 transitions, 117 flow [2021-04-28 23:51:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:51:10,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:51:10,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2021-04-28 23:51:10,205 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7318007662835249 [2021-04-28 23:51:10,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2021-04-28 23:51:10,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2021-04-28 23:51:10,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:10,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2021-04-28 23:51:10,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2021-04-28 23:51:10,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,216 INFO L185 Difference]: Start difference. First operand has 47 places, 40 transitions, 109 flow. Second operand 3 states and 382 transitions. [2021-04-28 23:51:10,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 40 transitions, 117 flow [2021-04-28 23:51:10,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 40 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:10,219 INFO L241 Difference]: Finished difference. Result has 49 places, 39 transitions, 113 flow [2021-04-28 23:51:10,219 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2021-04-28 23:51:10,219 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -33 predicate places. [2021-04-28 23:51:10,220 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:10,220 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 39 transitions, 113 flow [2021-04-28 23:51:10,220 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 39 transitions, 113 flow [2021-04-28 23:51:10,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 39 transitions, 113 flow [2021-04-28 23:51:10,231 INFO L129 PetriNetUnfolder]: 8/78 cut-off events. [2021-04-28 23:51:10,231 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 23:51:10,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 78 events. 8/78 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 343 event pairs, 4 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 117. Up to 21 conditions per place. [2021-04-28 23:51:10,233 INFO L146 LiptonReduction]: Number of co-enabled transitions 804 [2021-04-28 23:51:10,257 INFO L158 LiptonReduction]: Checked pairs total: 252 [2021-04-28 23:51:10,257 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:10,257 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-04-28 23:51:10,259 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 113 flow [2021-04-28 23:51:10,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2021-04-28 23:51:10,260 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:10,260 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:10,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:51:10,261 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:10,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:10,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1843119602, now seen corresponding path program 1 times [2021-04-28 23:51:10,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:10,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883631001] [2021-04-28 23:51:10,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:10,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:10,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:10,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:10,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883631001] [2021-04-28 23:51:10,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:10,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:51:10,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732158318] [2021-04-28 23:51:10,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:51:10,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:10,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:51:10,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:51:10,384 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 174 [2021-04-28 23:51:10,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,386 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:10,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 174 [2021-04-28 23:51:10,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:10,402 INFO L129 PetriNetUnfolder]: 6/74 cut-off events. [2021-04-28 23:51:10,402 INFO L130 PetriNetUnfolder]: For 17/20 co-relation queries the response was YES. [2021-04-28 23:51:10,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 74 events. 6/74 cut-off events. For 17/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 312 event pairs, 3 based on Foata normal form. 2/43 useless extension candidates. Maximal degree in co-relation 120. Up to 18 conditions per place. [2021-04-28 23:51:10,403 INFO L132 encePairwiseOnDemand]: 170/174 looper letters, 3 selfloop transitions, 4 changer transitions 1/41 dead transitions. [2021-04-28 23:51:10,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 41 transitions, 135 flow [2021-04-28 23:51:10,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:51:10,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:51:10,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2021-04-28 23:51:10,410 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7662835249042146 [2021-04-28 23:51:10,411 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2021-04-28 23:51:10,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2021-04-28 23:51:10,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:10,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2021-04-28 23:51:10,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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) [2021-04-28 23:51:10,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,418 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,418 INFO L185 Difference]: Start difference. First operand has 48 places, 39 transitions, 113 flow. Second operand 3 states and 400 transitions. [2021-04-28 23:51:10,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 41 transitions, 135 flow [2021-04-28 23:51:10,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 41 transitions, 129 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:51:10,421 INFO L241 Difference]: Finished difference. Result has 49 places, 40 transitions, 131 flow [2021-04-28 23:51:10,421 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2021-04-28 23:51:10,424 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -33 predicate places. [2021-04-28 23:51:10,425 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:10,425 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 40 transitions, 131 flow [2021-04-28 23:51:10,426 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 40 transitions, 131 flow [2021-04-28 23:51:10,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 40 transitions, 131 flow [2021-04-28 23:51:10,441 INFO L129 PetriNetUnfolder]: 6/70 cut-off events. [2021-04-28 23:51:10,441 INFO L130 PetriNetUnfolder]: For 12/15 co-relation queries the response was YES. [2021-04-28 23:51:10,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 70 events. 6/70 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 300 event pairs, 2 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 116. Up to 18 conditions per place. [2021-04-28 23:51:10,448 INFO L146 LiptonReduction]: Number of co-enabled transitions 820 [2021-04-28 23:51:10,464 INFO L158 LiptonReduction]: Checked pairs total: 261 [2021-04-28 23:51:10,465 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:10,465 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-04-28 23:51:10,470 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 131 flow [2021-04-28 23:51:10,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,471 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:10,471 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:10,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:51:10,472 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:10,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:10,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1301553946, now seen corresponding path program 1 times [2021-04-28 23:51:10,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:10,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93357357] [2021-04-28 23:51:10,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:10,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:10,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:10,599 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:51:10,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:10,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93357357] [2021-04-28 23:51:10,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:10,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:10,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341939777] [2021-04-28 23:51:10,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:10,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:10,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:10,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:10,633 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 174 [2021-04-28 23:51:10,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2021-04-28 23:51:10,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:10,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 174 [2021-04-28 23:51:10,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:10,698 INFO L129 PetriNetUnfolder]: 33/160 cut-off events. [2021-04-28 23:51:10,698 INFO L130 PetriNetUnfolder]: For 67/75 co-relation queries the response was YES. [2021-04-28 23:51:10,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 160 events. 33/160 cut-off events. For 67/75 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 877 event pairs, 0 based on Foata normal form. 7/107 useless extension candidates. Maximal degree in co-relation 337. Up to 38 conditions per place. [2021-04-28 23:51:10,700 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 11 selfloop transitions, 18 changer transitions 0/57 dead transitions. [2021-04-28 23:51:10,701 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 57 transitions, 284 flow [2021-04-28 23:51:10,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:10,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:10,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 562 transitions. [2021-04-28 23:51:10,704 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6459770114942529 [2021-04-28 23:51:10,704 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 562 transitions. [2021-04-28 23:51:10,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 562 transitions. [2021-04-28 23:51:10,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:10,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 562 transitions. [2021-04-28 23:51:10,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 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) [2021-04-28 23:51:10,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2021-04-28 23:51:10,711 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2021-04-28 23:51:10,711 INFO L185 Difference]: Start difference. First operand has 48 places, 40 transitions, 131 flow. Second operand 5 states and 562 transitions. [2021-04-28 23:51:10,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 57 transitions, 284 flow [2021-04-28 23:51:10,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 57 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:10,715 INFO L241 Difference]: Finished difference. Result has 55 places, 53 transitions, 285 flow [2021-04-28 23:51:10,715 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=285, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2021-04-28 23:51:10,716 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -27 predicate places. [2021-04-28 23:51:10,716 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:10,716 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 53 transitions, 285 flow [2021-04-28 23:51:10,716 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 53 transitions, 285 flow [2021-04-28 23:51:10,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 53 transitions, 285 flow [2021-04-28 23:51:10,735 INFO L129 PetriNetUnfolder]: 20/145 cut-off events. [2021-04-28 23:51:10,735 INFO L130 PetriNetUnfolder]: For 115/132 co-relation queries the response was YES. [2021-04-28 23:51:10,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 145 events. 20/145 cut-off events. For 115/132 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 854 event pairs, 1 based on Foata normal form. 4/89 useless extension candidates. Maximal degree in co-relation 338. Up to 33 conditions per place. [2021-04-28 23:51:10,740 INFO L146 LiptonReduction]: Number of co-enabled transitions 1202 [2021-04-28 23:51:10,754 INFO L158 LiptonReduction]: Checked pairs total: 98 [2021-04-28 23:51:10,754 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:10,754 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-04-28 23:51:10,756 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 285 flow [2021-04-28 23:51:10,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2021-04-28 23:51:10,757 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:10,757 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:10,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:51:10,757 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:10,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:10,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1302149146, now seen corresponding path program 2 times [2021-04-28 23:51:10,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:10,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287968069] [2021-04-28 23:51:10,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:10,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:10,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:10,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:10,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:10,812 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:51:10,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:10,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:10,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287968069] [2021-04-28 23:51:10,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:10,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:10,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192518014] [2021-04-28 23:51:10,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:51:10,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:10,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:51:10,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:51:10,825 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 174 [2021-04-28 23:51:10,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 285 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 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) [2021-04-28 23:51:10,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:10,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 174 [2021-04-28 23:51:10,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:10,888 INFO L129 PetriNetUnfolder]: 23/154 cut-off events. [2021-04-28 23:51:10,888 INFO L130 PetriNetUnfolder]: For 209/243 co-relation queries the response was YES. [2021-04-28 23:51:10,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 154 events. 23/154 cut-off events. For 209/243 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 891 event pairs, 1 based on Foata normal form. 13/105 useless extension candidates. Maximal degree in co-relation 422. Up to 35 conditions per place. [2021-04-28 23:51:10,890 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 7 selfloop transitions, 9 changer transitions 17/60 dead transitions. [2021-04-28 23:51:10,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 60 transitions, 411 flow [2021-04-28 23:51:10,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 558 transitions. [2021-04-28 23:51:10,893 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6413793103448275 [2021-04-28 23:51:10,893 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 558 transitions. [2021-04-28 23:51:10,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 558 transitions. [2021-04-28 23:51:10,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:10,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 558 transitions. [2021-04-28 23:51:10,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 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) [2021-04-28 23:51:10,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2021-04-28 23:51:10,900 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2021-04-28 23:51:10,900 INFO L185 Difference]: Start difference. First operand has 55 places, 53 transitions, 285 flow. Second operand 5 states and 558 transitions. [2021-04-28 23:51:10,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 60 transitions, 411 flow [2021-04-28 23:51:10,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 60 transitions, 409 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-28 23:51:10,906 INFO L241 Difference]: Finished difference. Result has 61 places, 41 transitions, 214 flow [2021-04-28 23:51:10,906 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=61, PETRI_TRANSITIONS=41} [2021-04-28 23:51:10,907 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -21 predicate places. [2021-04-28 23:51:10,907 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:10,907 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 41 transitions, 214 flow [2021-04-28 23:51:10,907 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 41 transitions, 214 flow [2021-04-28 23:51:10,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 41 transitions, 214 flow [2021-04-28 23:51:10,918 INFO L129 PetriNetUnfolder]: 7/74 cut-off events. [2021-04-28 23:51:10,918 INFO L130 PetriNetUnfolder]: For 97/100 co-relation queries the response was YES. [2021-04-28 23:51:10,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 74 events. 7/74 cut-off events. For 97/100 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 320 event pairs, 3 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 192. Up to 19 conditions per place. [2021-04-28 23:51:10,921 INFO L146 LiptonReduction]: Number of co-enabled transitions 770 [2021-04-28 23:51:10,926 INFO L158 LiptonReduction]: Checked pairs total: 60 [2021-04-28 23:51:10,927 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:10,927 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-04-28 23:51:10,928 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 41 transitions, 214 flow [2021-04-28 23:51:10,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 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) [2021-04-28 23:51:10,929 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:10,929 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:10,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:51:10,930 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:10,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:10,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1955224630, now seen corresponding path program 1 times [2021-04-28 23:51:10,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:10,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441468286] [2021-04-28 23:51:10,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:11,034 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:51:11,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:51:11,040 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:51:11,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:11,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:11,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441468286] [2021-04-28 23:51:11,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:11,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:11,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923481862] [2021-04-28 23:51:11,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:11,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:11,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:11,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:11,053 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 174 [2021-04-28 23:51:11,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 41 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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) [2021-04-28 23:51:11,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:11,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 174 [2021-04-28 23:51:11,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:12,180 INFO L129 PetriNetUnfolder]: 5278/8475 cut-off events. [2021-04-28 23:51:12,180 INFO L130 PetriNetUnfolder]: For 5812/6526 co-relation queries the response was YES. [2021-04-28 23:51:12,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17807 conditions, 8475 events. 5278/8475 cut-off events. For 5812/6526 co-relation queries the response was YES. Maximal size of possible extension queue 1770. Compared 68800 event pairs, 2356 based on Foata normal form. 103/2288 useless extension candidates. Maximal degree in co-relation 17785. Up to 5308 conditions per place. [2021-04-28 23:51:12,237 INFO L132 encePairwiseOnDemand]: 156/174 looper letters, 30 selfloop transitions, 28 changer transitions 0/77 dead transitions. [2021-04-28 23:51:12,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 77 transitions, 402 flow [2021-04-28 23:51:12,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:12,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:12,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 591 transitions. [2021-04-28 23:51:12,240 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6793103448275862 [2021-04-28 23:51:12,240 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 591 transitions. [2021-04-28 23:51:12,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 591 transitions. [2021-04-28 23:51:12,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:12,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 591 transitions. [2021-04-28 23:51:12,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 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) [2021-04-28 23:51:12,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2021-04-28 23:51:12,247 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2021-04-28 23:51:12,247 INFO L185 Difference]: Start difference. First operand has 60 places, 41 transitions, 214 flow. Second operand 5 states and 591 transitions. [2021-04-28 23:51:12,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 77 transitions, 402 flow [2021-04-28 23:51:12,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 77 transitions, 341 flow, removed 8 selfloop flow, removed 9 redundant places. [2021-04-28 23:51:12,255 INFO L241 Difference]: Finished difference. Result has 58 places, 67 transitions, 364 flow [2021-04-28 23:51:12,255 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=364, PETRI_PLACES=58, PETRI_TRANSITIONS=67} [2021-04-28 23:51:12,256 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -24 predicate places. [2021-04-28 23:51:12,256 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:12,256 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 67 transitions, 364 flow [2021-04-28 23:51:12,256 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 67 transitions, 364 flow [2021-04-28 23:51:12,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 67 transitions, 364 flow [2021-04-28 23:51:13,113 INFO L129 PetriNetUnfolder]: 4660/7480 cut-off events. [2021-04-28 23:51:13,113 INFO L130 PetriNetUnfolder]: For 2613/7375 co-relation queries the response was YES. [2021-04-28 23:51:13,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21351 conditions, 7480 events. 4660/7480 cut-off events. For 2613/7375 co-relation queries the response was YES. Maximal size of possible extension queue 1938. Compared 61598 event pairs, 2168 based on Foata normal form. 2/2130 useless extension candidates. Maximal degree in co-relation 21335. Up to 6726 conditions per place. [2021-04-28 23:51:13,232 INFO L146 LiptonReduction]: Number of co-enabled transitions 902 [2021-04-28 23:51:13,251 INFO L158 LiptonReduction]: Checked pairs total: 60 [2021-04-28 23:51:13,251 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:13,252 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 996 [2021-04-28 23:51:13,253 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 67 transitions, 364 flow [2021-04-28 23:51:13,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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) [2021-04-28 23:51:13,254 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:13,254 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:13,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:51:13,255 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:13,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:13,255 INFO L82 PathProgramCache]: Analyzing trace with hash 679146721, now seen corresponding path program 1 times [2021-04-28 23:51:13,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:13,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250815328] [2021-04-28 23:51:13,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:13,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:13,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:13,363 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:51:13,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:51:13,370 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:51:13,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:13,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:13,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250815328] [2021-04-28 23:51:13,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:13,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:13,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719157445] [2021-04-28 23:51:13,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:51:13,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:13,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:51:13,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:51:13,384 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 174 [2021-04-28 23:51:13,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 67 transitions, 364 flow. Second operand has 5 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 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) [2021-04-28 23:51:13,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:13,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 174 [2021-04-28 23:51:13,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:14,855 INFO L129 PetriNetUnfolder]: 5068/9039 cut-off events. [2021-04-28 23:51:14,856 INFO L130 PetriNetUnfolder]: For 4243/20526 co-relation queries the response was YES. [2021-04-28 23:51:14,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34584 conditions, 9039 events. 5068/9039 cut-off events. For 4243/20526 co-relation queries the response was YES. Maximal size of possible extension queue 2367. Compared 83332 event pairs, 514 based on Foata normal form. 141/2848 useless extension candidates. Maximal degree in co-relation 34566. Up to 8127 conditions per place. [2021-04-28 23:51:14,920 INFO L132 encePairwiseOnDemand]: 156/174 looper letters, 22 selfloop transitions, 63 changer transitions 9/113 dead transitions. [2021-04-28 23:51:14,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 113 transitions, 805 flow [2021-04-28 23:51:14,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:51:14,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:51:14,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 829 transitions. [2021-04-28 23:51:14,925 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.680623973727422 [2021-04-28 23:51:14,925 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 829 transitions. [2021-04-28 23:51:14,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 829 transitions. [2021-04-28 23:51:14,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:14,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 829 transitions. [2021-04-28 23:51:14,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 118.42857142857143) internal successors, (829), 7 states have internal predecessors, (829), 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) [2021-04-28 23:51:14,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 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) [2021-04-28 23:51:14,933 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 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) [2021-04-28 23:51:14,934 INFO L185 Difference]: Start difference. First operand has 58 places, 67 transitions, 364 flow. Second operand 7 states and 829 transitions. [2021-04-28 23:51:14,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 113 transitions, 805 flow [2021-04-28 23:51:15,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 113 transitions, 805 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:51:15,018 INFO L241 Difference]: Finished difference. Result has 67 places, 102 transitions, 805 flow [2021-04-28 23:51:15,018 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=805, PETRI_PLACES=67, PETRI_TRANSITIONS=102} [2021-04-28 23:51:15,019 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -15 predicate places. [2021-04-28 23:51:15,019 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:15,019 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 102 transitions, 805 flow [2021-04-28 23:51:15,019 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 102 transitions, 805 flow [2021-04-28 23:51:15,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 102 transitions, 805 flow [2021-04-28 23:51:15,808 INFO L129 PetriNetUnfolder]: 3064/6130 cut-off events. [2021-04-28 23:51:15,808 INFO L130 PetriNetUnfolder]: For 7467/21210 co-relation queries the response was YES. [2021-04-28 23:51:15,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26122 conditions, 6130 events. 3064/6130 cut-off events. For 7467/21210 co-relation queries the response was YES. Maximal size of possible extension queue 1772. Compared 63926 event pairs, 522 based on Foata normal form. 7/1676 useless extension candidates. Maximal degree in co-relation 26101. Up to 5367 conditions per place. [2021-04-28 23:51:15,912 INFO L146 LiptonReduction]: Number of co-enabled transitions 1114 [2021-04-28 23:51:15,945 INFO L158 LiptonReduction]: Checked pairs total: 56 [2021-04-28 23:51:15,945 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:15,945 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 926 [2021-04-28 23:51:15,949 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 102 transitions, 805 flow [2021-04-28 23:51:15,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 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) [2021-04-28 23:51:15,949 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:15,950 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:15,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:51:15,950 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:15,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:15,950 INFO L82 PathProgramCache]: Analyzing trace with hash -362254371, now seen corresponding path program 1 times [2021-04-28 23:51:15,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:15,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945889517] [2021-04-28 23:51:15,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:16,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:16,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:51:16,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:16,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:16,032 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:51:16,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:16,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945889517] [2021-04-28 23:51:16,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:16,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:16,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731143257] [2021-04-28 23:51:16,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:16,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:16,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:16,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:16,056 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 174 [2021-04-28 23:51:16,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 102 transitions, 805 flow. Second operand has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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) [2021-04-28 23:51:16,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:16,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 174 [2021-04-28 23:51:16,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:17,052 INFO L129 PetriNetUnfolder]: 3138/6526 cut-off events. [2021-04-28 23:51:17,052 INFO L130 PetriNetUnfolder]: For 9225/33810 co-relation queries the response was YES. [2021-04-28 23:51:17,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27757 conditions, 6526 events. 3138/6526 cut-off events. For 9225/33810 co-relation queries the response was YES. Maximal size of possible extension queue 1698. Compared 68331 event pairs, 486 based on Foata normal form. 94/1743 useless extension candidates. Maximal degree in co-relation 27734. Up to 5730 conditions per place. [2021-04-28 23:51:17,094 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 5 selfloop transitions, 12 changer transitions 13/107 dead transitions. [2021-04-28 23:51:17,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 107 transitions, 868 flow [2021-04-28 23:51:17,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:17,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:17,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 545 transitions. [2021-04-28 23:51:17,098 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6264367816091954 [2021-04-28 23:51:17,098 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 545 transitions. [2021-04-28 23:51:17,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 545 transitions. [2021-04-28 23:51:17,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:17,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 545 transitions. [2021-04-28 23:51:17,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:17,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2021-04-28 23:51:17,105 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2021-04-28 23:51:17,105 INFO L185 Difference]: Start difference. First operand has 67 places, 102 transitions, 805 flow. Second operand 5 states and 545 transitions. [2021-04-28 23:51:17,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 107 transitions, 868 flow [2021-04-28 23:51:17,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 107 transitions, 770 flow, removed 34 selfloop flow, removed 2 redundant places. [2021-04-28 23:51:17,584 INFO L241 Difference]: Finished difference. Result has 71 places, 94 transitions, 673 flow [2021-04-28 23:51:17,585 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=673, PETRI_PLACES=71, PETRI_TRANSITIONS=94} [2021-04-28 23:51:17,585 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -11 predicate places. [2021-04-28 23:51:17,585 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:17,585 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 94 transitions, 673 flow [2021-04-28 23:51:17,586 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 94 transitions, 673 flow [2021-04-28 23:51:17,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 94 transitions, 673 flow [2021-04-28 23:51:18,158 INFO L129 PetriNetUnfolder]: 1778/4780 cut-off events. [2021-04-28 23:51:18,158 INFO L130 PetriNetUnfolder]: For 4060/8272 co-relation queries the response was YES. [2021-04-28 23:51:18,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17708 conditions, 4780 events. 1778/4780 cut-off events. For 4060/8272 co-relation queries the response was YES. Maximal size of possible extension queue 1393. Compared 58275 event pairs, 486 based on Foata normal form. 6/1274 useless extension candidates. Maximal degree in co-relation 17685. Up to 2941 conditions per place. [2021-04-28 23:51:18,228 INFO L146 LiptonReduction]: Number of co-enabled transitions 1250 [2021-04-28 23:51:18,256 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:51:18,257 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:18,257 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 672 [2021-04-28 23:51:18,259 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 94 transitions, 673 flow [2021-04-28 23:51:18,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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) [2021-04-28 23:51:18,259 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:18,260 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:18,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:51:18,260 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:18,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:18,260 INFO L82 PathProgramCache]: Analyzing trace with hash -998550228, now seen corresponding path program 1 times [2021-04-28 23:51:18,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:18,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350518902] [2021-04-28 23:51:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:18,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:18,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:18,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:18,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:18,340 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:51:18,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:51:18,348 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:51:18,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:18,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350518902] [2021-04-28 23:51:18,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:18,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:51:18,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358907537] [2021-04-28 23:51:18,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:51:18,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:18,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:51:18,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:51:18,361 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 174 [2021-04-28 23:51:18,362 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 94 transitions, 673 flow. Second operand has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 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) [2021-04-28 23:51:18,362 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:18,362 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 174 [2021-04-28 23:51:18,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:19,305 INFO L129 PetriNetUnfolder]: 1484/4776 cut-off events. [2021-04-28 23:51:19,306 INFO L130 PetriNetUnfolder]: For 4214/18694 co-relation queries the response was YES. [2021-04-28 23:51:19,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21807 conditions, 4776 events. 1484/4776 cut-off events. For 4214/18694 co-relation queries the response was YES. Maximal size of possible extension queue 1482. Compared 63357 event pairs, 0 based on Foata normal form. 88/1474 useless extension candidates. Maximal degree in co-relation 21782. Up to 2761 conditions per place. [2021-04-28 23:51:19,332 INFO L132 encePairwiseOnDemand]: 156/174 looper letters, 0 selfloop transitions, 0 changer transitions 116/116 dead transitions. [2021-04-28 23:51:19,332 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 116 transitions, 1004 flow [2021-04-28 23:51:19,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 23:51:19,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 23:51:19,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1038 transitions. [2021-04-28 23:51:19,338 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6628352490421456 [2021-04-28 23:51:19,338 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1038 transitions. [2021-04-28 23:51:19,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1038 transitions. [2021-04-28 23:51:19,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:19,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1038 transitions. [2021-04-28 23:51:19,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 115.33333333333333) internal successors, (1038), 9 states have internal predecessors, (1038), 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) [2021-04-28 23:51:19,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 174.0) internal successors, (1740), 10 states have internal predecessors, (1740), 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) [2021-04-28 23:51:19,347 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 174.0) internal successors, (1740), 10 states have internal predecessors, (1740), 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) [2021-04-28 23:51:19,347 INFO L185 Difference]: Start difference. First operand has 71 places, 94 transitions, 673 flow. Second operand 9 states and 1038 transitions. [2021-04-28 23:51:19,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 116 transitions, 1004 flow [2021-04-28 23:51:19,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 116 transitions, 906 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-04-28 23:51:19,729 INFO L241 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2021-04-28 23:51:19,729 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2021-04-28 23:51:19,730 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2021-04-28 23:51:19,730 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:19,730 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 0 transitions, 0 flow [2021-04-28 23:51:19,730 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 0 transitions, 0 flow [2021-04-28 23:51:19,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:51:19,731 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:51:19,731 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:19,731 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. [2021-04-28 23:51:19,731 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:51:19,732 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:51:19,732 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:19,732 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:51:19,733 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:51:19,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 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) [2021-04-28 23:51:19,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:51:19,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:51:19 BasicIcfg [2021-04-28 23:51:19,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:51:19,740 INFO L168 Benchmark]: Toolchain (without parser) took 24783.12 ms. Allocated memory was 302.0 MB in the beginning and 889.2 MB in the end (delta: 587.2 MB). Free memory was 277.0 MB in the beginning and 482.3 MB in the end (delta: -205.3 MB). Peak memory consumption was 383.4 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:19,740 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:51:19,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.06 ms. Allocated memory is still 302.0 MB. Free memory was 273.9 MB in the beginning and 282.5 MB in the end (delta: -8.6 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:19,741 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.35 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 280.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:19,741 INFO L168 Benchmark]: Boogie Preprocessor took 29.11 ms. Allocated memory is still 302.0 MB. Free memory was 280.4 MB in the beginning and 279.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:19,742 INFO L168 Benchmark]: RCFGBuilder took 585.33 ms. Allocated memory is still 302.0 MB. Free memory was 279.3 MB in the beginning and 255.2 MB in the end (delta: 24.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:19,742 INFO L168 Benchmark]: TraceAbstraction took 23299.19 ms. Allocated memory was 302.0 MB in the beginning and 889.2 MB in the end (delta: 587.2 MB). Free memory was 255.2 MB in the beginning and 482.3 MB in the end (delta: -227.2 MB). Peak memory consumption was 359.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:19,744 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 746.06 ms. Allocated memory is still 302.0 MB. Free memory was 273.9 MB in the beginning and 282.5 MB in the end (delta: -8.6 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 66.35 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 280.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.11 ms. Allocated memory is still 302.0 MB. Free memory was 280.4 MB in the beginning and 279.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 585.33 ms. Allocated memory is still 302.0 MB. Free memory was 279.3 MB in the beginning and 255.2 MB in the end (delta: 24.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 23299.19 ms. Allocated memory was 302.0 MB in the beginning and 889.2 MB in the end (delta: 587.2 MB). Free memory was 255.2 MB in the beginning and 482.3 MB in the end (delta: -227.2 MB). Peak memory consumption was 359.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12712.0ms, 69 PlacesBefore, 82 PlacesAfterwards, 60 TransitionsBefore, 72 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 99 TotalNumberOfCompositions, 6566 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2050, positive: 1850, positive conditional: 1850, positive unconditional: 0, negative: 200, negative conditional: 200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 861, positive: 819, positive conditional: 0, positive unconditional: 819, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 861, positive: 819, positive conditional: 0, positive unconditional: 819, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 861, positive: 805, positive conditional: 0, positive unconditional: 805, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 310, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 211, negative conditional: 0, negative unconditional: 211, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2050, positive: 1031, positive conditional: 1031, positive unconditional: 0, negative: 158, negative conditional: 158, negative unconditional: 0, unknown: 861, unknown conditional: 861, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 858, Positive cache size: 816, Positive conditional cache size: 816, Positive unconditional cache size: 0, Negative cache size: 42, Negative conditional cache size: 42, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.8ms, 82 PlacesBefore, 47 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 854 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 863, Positive cache size: 818, Positive conditional cache size: 818, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.1ms, 49 PlacesBefore, 48 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 252 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 76, positive: 67, positive conditional: 67, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, positive: 56, positive conditional: 56, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 876, Positive cache size: 829, Positive conditional cache size: 829, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.1ms, 49 PlacesBefore, 48 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 820 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 880, Positive cache size: 831, Positive conditional cache size: 831, Positive unconditional cache size: 0, Negative cache size: 49, Negative conditional cache size: 49, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.9ms, 55 PlacesBefore, 55 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 1202 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 98 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 885, Positive cache size: 834, Positive conditional cache size: 834, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.2ms, 61 PlacesBefore, 60 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 770 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 60 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 1, 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: 4, positive: 4, positive conditional: 1, 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: 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: 21, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 838, Positive conditional cache size: 838, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 995.2ms, 58 PlacesBefore, 58 PlacesAfterwards, 67 TransitionsBefore, 67 TransitionsAfterwards, 902 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 60 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 890, Positive cache size: 839, Positive conditional cache size: 839, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 926.1ms, 67 PlacesBefore, 67 PlacesAfterwards, 102 TransitionsBefore, 102 TransitionsAfterwards, 1114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 56 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 891, Positive cache size: 840, Positive conditional cache size: 840, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 671.0ms, 71 PlacesBefore, 71 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 1250 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): 891, Positive cache size: 840, Positive conditional cache size: 840, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4ms, 74 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): 891, Positive cache size: 840, Positive conditional cache size: 840, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 23162.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 6241.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12829.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 71 SDtfs, 80 SDslu, 29 SDs, 0 SdLazy, 337 SolverSat, 126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 370.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=805occurred in iteration=7, InterpolantAutomatonStates: 45, 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: 30.0ms SsaConstructionTime, 289.2ms SatisfiabilityAnalysisTime, 715.4ms InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 411 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...