/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/safe004_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:33:07,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:33:07,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:33:07,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:33:07,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:33:07,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:33:07,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:33:07,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:33:07,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:33:07,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:33:07,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:33:07,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:33:07,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:33:07,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:33:07,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:33:07,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:33:07,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:33:07,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:33:07,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:33:07,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:33:07,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:33:07,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:33:07,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:33:07,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:33:07,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 23:33:07,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 23:33:07,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 23:33:07,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 23:33:07,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 23:33:07,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 23:33:07,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:33:07,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:33:07,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:33:07,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:33:07,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:33:07,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:33:07,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:33:07,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:33:07,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:33:07,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:33:07,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:33:07,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:33:07,890 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:33:07,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:33:07,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:33:07,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:33:07,894 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:33:07,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:33:07,895 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:33:07,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:33:07,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:33:07,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:33:07,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:33:07,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:33:07,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:33:07,897 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:33:07,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:33:07,898 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:33:07,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:33:07,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:33:07,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:33:07,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:33:07,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:33:07,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:33:07,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:33:07,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:33:07,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:33:07,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:33:07,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:33:07,900 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:33:07,900 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:33:07,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:33:07,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:33:08,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:33:08,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:33:08,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:33:08,375 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:33:08,375 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:33:08,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2021-04-28 23:33:08,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd83efea/c6dbd52d158240b8858cf2f3b37204e5/FLAG559066a35 [2021-04-28 23:33:09,228 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:33:09,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2021-04-28 23:33:09,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd83efea/c6dbd52d158240b8858cf2f3b37204e5/FLAG559066a35 [2021-04-28 23:33:09,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd83efea/c6dbd52d158240b8858cf2f3b37204e5 [2021-04-28 23:33:09,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:33:09,577 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:33:09,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:33:09,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:33:09,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:33:09,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:33:09" (1/1) ... [2021-04-28 23:33:09,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f338ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:09, skipping insertion in model container [2021-04-28 23:33:09,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:33:09" (1/1) ... [2021-04-28 23:33:09,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:33:09,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:33:09,814 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/safe004_tso.opt.i[949,962] [2021-04-28 23:33:10,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:33:10,044 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:33:10,062 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/safe004_tso.opt.i[949,962] [2021-04-28 23:33:10,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:33:10,242 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:33:10,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10 WrapperNode [2021-04-28 23:33:10,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:33:10,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:33:10,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:33:10,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:33:10,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10" (1/1) ... [2021-04-28 23:33:10,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10" (1/1) ... [2021-04-28 23:33:10,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:33:10,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:33:10,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:33:10,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:33:10,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10" (1/1) ... [2021-04-28 23:33:10,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10" (1/1) ... [2021-04-28 23:33:10,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10" (1/1) ... [2021-04-28 23:33:10,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10" (1/1) ... [2021-04-28 23:33:10,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10" (1/1) ... [2021-04-28 23:33:10,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10" (1/1) ... [2021-04-28 23:33:10,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10" (1/1) ... [2021-04-28 23:33:10,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:33:10,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:33:10,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:33:10,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:33:10,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10" (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 23:33:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:33:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:33:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:33:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:33:10,488 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:33:10,488 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:33:10,488 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:33:10,488 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:33:10,488 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:33:10,488 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:33:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:33:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:33:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:33:10,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:33:10,491 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 23:33:10,943 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:33:10,943 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:33:10,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:33:10 BoogieIcfgContainer [2021-04-28 23:33:10,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:33:10,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:33:10,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:33:10,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:33:10,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:33:09" (1/3) ... [2021-04-28 23:33:10,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2f72ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:33:10, skipping insertion in model container [2021-04-28 23:33:10,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:33:10" (2/3) ... [2021-04-28 23:33:10,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2f72ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:33:10, skipping insertion in model container [2021-04-28 23:33:10,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:33:10" (3/3) ... [2021-04-28 23:33:10,954 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2021-04-28 23:33:10,963 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:33:10,972 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:33:10,973 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:33:11,051 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,051 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,052 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,052 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,052 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,052 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,053 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,053 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,053 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,053 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,054 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,054 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,055 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,055 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,055 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,056 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,056 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,056 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,056 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,056 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,062 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,062 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,064 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,064 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,069 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,081 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,081 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,089 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,090 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,090 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,090 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:33:11,098 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:33:11,123 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:33:11,166 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:33:11,166 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:33:11,166 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:33:11,166 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:33:11,167 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:33:11,167 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:33:11,167 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:33:11,167 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:33:11,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:33:11,264 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-28 23:33:11,265 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:33:11,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:33:11,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:33:11,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-28 23:33:11,294 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:33:11,311 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:33:11,314 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:33:11,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-28 23:33:11,334 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-28 23:33:11,334 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:33:11,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:33:11,338 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:33:15,758 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:33:15,921 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:33:16,083 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:33:16,256 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:33:16,407 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:33:16,564 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:33:16,851 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:33:17,020 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:33:17,190 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:33:17,554 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:33:17,798 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:33:17,981 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:33:18,167 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:33:18,372 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:33:18,593 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:33:18,814 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:33:19,041 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:33:19,259 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:33:19,514 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:33:19,738 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:33:19,942 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:33:20,157 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:33:20,372 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:33:20,581 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:33:20,803 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:33:21,372 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:33:21,706 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:33:21,993 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:33:22,269 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:33:22,386 INFO L158 LiptonReduction]: Checked pairs total: 6642 [2021-04-28 23:33:22,386 INFO L160 LiptonReduction]: Total number of compositions: 94 [2021-04-28 23:33:22,390 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11099 [2021-04-28 23:33:22,411 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-04-28 23:33:22,411 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:33:22,411 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:33:22,412 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:33:22,413 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:33:22,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:33:22,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1747938615, now seen corresponding path program 1 times [2021-04-28 23:33:22,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:33:22,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747882082] [2021-04-28 23:33:22,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:33:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:33:22,704 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:33:22,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:33:22,727 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 23:33:22,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747882082] [2021-04-28 23:33:22,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:33:22,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:33:22,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256751356] [2021-04-28 23:33:22,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:33:22,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:33:22,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:33:22,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:33:22,763 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:33:22,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 23:33:22,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:33:22,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:33:22,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:33:23,020 INFO L129 PetriNetUnfolder]: 536/1339 cut-off events. [2021-04-28 23:33:23,020 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:33:23,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 1339 events. 536/1339 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 11478 event pairs, 153 based on Foata normal form. 0/803 useless extension candidates. Maximal degree in co-relation 2159. Up to 585 conditions per place. [2021-04-28 23:33:23,031 INFO L132 encePairwiseOnDemand]: 147/168 looper letters, 7 selfloop transitions, 7 changer transitions 36/81 dead transitions. [2021-04-28 23:33:23,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 81 transitions, 245 flow [2021-04-28 23:33:23,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:33:23,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:33:23,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2021-04-28 23:33:23,049 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-04-28 23:33:23,050 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2021-04-28 23:33:23,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2021-04-28 23:33:23,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:33:23,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2021-04-28 23:33:23,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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 23:33:23,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 23:33:23,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 23:33:23,084 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 149 flow. Second operand 3 states and 351 transitions. [2021-04-28 23:33:23,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 81 transitions, 245 flow [2021-04-28 23:33:23,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 81 transitions, 242 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:33:23,091 INFO L241 Difference]: Finished difference. Result has 81 places, 45 transitions, 138 flow [2021-04-28 23:33:23,094 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=81, PETRI_TRANSITIONS=45} [2021-04-28 23:33:23,095 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 1 predicate places. [2021-04-28 23:33:23,095 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:33:23,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 45 transitions, 138 flow [2021-04-28 23:33:23,096 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 45 transitions, 138 flow [2021-04-28 23:33:23,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 138 flow [2021-04-28 23:33:23,131 INFO L129 PetriNetUnfolder]: 91/299 cut-off events. [2021-04-28 23:33:23,131 INFO L130 PetriNetUnfolder]: For 34/38 co-relation queries the response was YES. [2021-04-28 23:33:23,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 299 events. 91/299 cut-off events. For 34/38 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1915 event pairs, 33 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 548. Up to 113 conditions per place. [2021-04-28 23:33:23,141 INFO L146 LiptonReduction]: Number of co-enabled transitions 1024 [2021-04-28 23:33:23,149 INFO L158 LiptonReduction]: Checked pairs total: 24 [2021-04-28 23:33:23,149 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:33:23,150 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-04-28 23:33:23,152 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 138 flow [2021-04-28 23:33:23,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 23:33:23,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:33:23,153 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:33:23,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:33:23,153 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:33:23,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:33:23,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1648479576, now seen corresponding path program 1 times [2021-04-28 23:33:23,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:33:23,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150441727] [2021-04-28 23:33:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:33:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:33:23,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:23,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:23,239 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 23:33:23,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150441727] [2021-04-28 23:33:23,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:33:23,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:33:23,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797288618] [2021-04-28 23:33:23,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:33:23,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:33:23,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:33:23,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:33:23,245 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 168 [2021-04-28 23:33:23,246 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:33:23,246 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:33:23,246 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 168 [2021-04-28 23:33:23,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:33:23,282 INFO L129 PetriNetUnfolder]: 78/257 cut-off events. [2021-04-28 23:33:23,282 INFO L130 PetriNetUnfolder]: For 72/105 co-relation queries the response was YES. [2021-04-28 23:33:23,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 257 events. 78/257 cut-off events. For 72/105 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1480 event pairs, 21 based on Foata normal form. 4/181 useless extension candidates. Maximal degree in co-relation 525. Up to 103 conditions per place. [2021-04-28 23:33:23,285 INFO L132 encePairwiseOnDemand]: 164/168 looper letters, 4 selfloop transitions, 5 changer transitions 0/48 dead transitions. [2021-04-28 23:33:23,285 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 48 transitions, 172 flow [2021-04-28 23:33:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:33:23,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:33:23,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2021-04-28 23:33:23,289 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7698412698412699 [2021-04-28 23:33:23,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2021-04-28 23:33:23,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2021-04-28 23:33:23,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:33:23,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2021-04-28 23:33:23,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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 23:33:23,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 23:33:23,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 23:33:23,295 INFO L185 Difference]: Start difference. First operand has 50 places, 45 transitions, 138 flow. Second operand 3 states and 388 transitions. [2021-04-28 23:33:23,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 48 transitions, 172 flow [2021-04-28 23:33:23,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 48 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:33:23,299 INFO L241 Difference]: Finished difference. Result has 51 places, 48 transitions, 159 flow [2021-04-28 23:33:23,300 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2021-04-28 23:33:23,300 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -29 predicate places. [2021-04-28 23:33:23,301 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:33:23,301 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 48 transitions, 159 flow [2021-04-28 23:33:23,301 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 48 transitions, 159 flow [2021-04-28 23:33:23,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 159 flow [2021-04-28 23:33:23,328 INFO L129 PetriNetUnfolder]: 78/266 cut-off events. [2021-04-28 23:33:23,328 INFO L130 PetriNetUnfolder]: For 28/43 co-relation queries the response was YES. [2021-04-28 23:33:23,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 266 events. 78/266 cut-off events. For 28/43 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1681 event pairs, 19 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 475. Up to 103 conditions per place. [2021-04-28 23:33:23,334 INFO L146 LiptonReduction]: Number of co-enabled transitions 1132 [2021-04-28 23:33:23,346 INFO L158 LiptonReduction]: Checked pairs total: 27 [2021-04-28 23:33:23,347 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:33:23,347 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-28 23:33:23,349 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 159 flow [2021-04-28 23:33:23,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:33:23,349 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:33:23,350 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:33:23,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:33:23,350 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:33:23,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:33:23,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1662338250, now seen corresponding path program 1 times [2021-04-28 23:33:23,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:33:23,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120585471] [2021-04-28 23:33:23,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:33:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:33:23,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:23,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:23,451 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:33:23,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:33:23,461 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 23:33:23,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120585471] [2021-04-28 23:33:23,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:33:23,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:33:23,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732870429] [2021-04-28 23:33:23,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:33:23,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:33:23,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:33:23,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:33:23,466 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:33:23,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:33:23,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:33:23,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:33:23,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:33:23,510 INFO L129 PetriNetUnfolder]: 46/181 cut-off events. [2021-04-28 23:33:23,510 INFO L130 PetriNetUnfolder]: For 52/162 co-relation queries the response was YES. [2021-04-28 23:33:23,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 181 events. 46/181 cut-off events. For 52/162 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 951 event pairs, 5 based on Foata normal form. 5/126 useless extension candidates. Maximal degree in co-relation 414. Up to 65 conditions per place. [2021-04-28 23:33:23,513 INFO L132 encePairwiseOnDemand]: 161/168 looper letters, 14 selfloop transitions, 9 changer transitions 8/59 dead transitions. [2021-04-28 23:33:23,513 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 277 flow [2021-04-28 23:33:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:33:23,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:33:23,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2021-04-28 23:33:23,515 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6443452380952381 [2021-04-28 23:33:23,515 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 433 transitions. [2021-04-28 23:33:23,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 433 transitions. [2021-04-28 23:33:23,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:33:23,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 433 transitions. [2021-04-28 23:33:23,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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 23:33:23,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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 23:33:23,521 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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 23:33:23,521 INFO L185 Difference]: Start difference. First operand has 51 places, 48 transitions, 159 flow. Second operand 4 states and 433 transitions. [2021-04-28 23:33:23,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 277 flow [2021-04-28 23:33:23,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:33:23,525 INFO L241 Difference]: Finished difference. Result has 56 places, 49 transitions, 214 flow [2021-04-28 23:33:23,525 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2021-04-28 23:33:23,525 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -24 predicate places. [2021-04-28 23:33:23,526 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:33:23,526 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 49 transitions, 214 flow [2021-04-28 23:33:23,526 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 49 transitions, 214 flow [2021-04-28 23:33:23,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 49 transitions, 214 flow [2021-04-28 23:33:23,545 INFO L129 PetriNetUnfolder]: 37/166 cut-off events. [2021-04-28 23:33:23,545 INFO L130 PetriNetUnfolder]: For 87/90 co-relation queries the response was YES. [2021-04-28 23:33:23,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 166 events. 37/166 cut-off events. For 87/90 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 905 event pairs, 10 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 356. Up to 55 conditions per place. [2021-04-28 23:33:23,550 INFO L146 LiptonReduction]: Number of co-enabled transitions 1084 [2021-04-28 23:33:23,558 INFO L158 LiptonReduction]: Checked pairs total: 30 [2021-04-28 23:33:23,558 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:33:23,558 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-04-28 23:33:23,560 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 214 flow [2021-04-28 23:33:23,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:33:23,560 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:33:23,561 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:33:23,561 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:33:23,561 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:33:23,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:33:23,562 INFO L82 PathProgramCache]: Analyzing trace with hash 631278413, now seen corresponding path program 1 times [2021-04-28 23:33:23,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:33:23,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670474183] [2021-04-28 23:33:23,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:33:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:33:23,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:23,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:23,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:23,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:23,621 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:33:23,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:33:23,631 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 23:33:23,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670474183] [2021-04-28 23:33:23,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:33:23,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:33:23,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937626543] [2021-04-28 23:33:23,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:33:23,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:33:23,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:33:23,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:33:23,635 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:33:23,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 214 flow. Second operand has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 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 23:33:23,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:33:23,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:33:23,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:33:23,723 INFO L129 PetriNetUnfolder]: 35/176 cut-off events. [2021-04-28 23:33:23,724 INFO L130 PetriNetUnfolder]: For 105/144 co-relation queries the response was YES. [2021-04-28 23:33:23,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 176 events. 35/176 cut-off events. For 105/144 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 969 event pairs, 0 based on Foata normal form. 6/121 useless extension candidates. Maximal degree in co-relation 464. Up to 60 conditions per place. [2021-04-28 23:33:23,726 INFO L132 encePairwiseOnDemand]: 161/168 looper letters, 11 selfloop transitions, 11 changer transitions 17/67 dead transitions. [2021-04-28 23:33:23,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 67 transitions, 418 flow [2021-04-28 23:33:23,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:33:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:33:23,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 541 transitions. [2021-04-28 23:33:23,729 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6440476190476191 [2021-04-28 23:33:23,730 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 541 transitions. [2021-04-28 23:33:23,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 541 transitions. [2021-04-28 23:33:23,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:33:23,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 541 transitions. [2021-04-28 23:33:23,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 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 23:33:23,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 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 23:33:23,737 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 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 23:33:23,737 INFO L185 Difference]: Start difference. First operand has 53 places, 49 transitions, 214 flow. Second operand 5 states and 541 transitions. [2021-04-28 23:33:23,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 67 transitions, 418 flow [2021-04-28 23:33:23,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 67 transitions, 413 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:33:23,746 INFO L241 Difference]: Finished difference. Result has 58 places, 47 transitions, 232 flow [2021-04-28 23:33:23,747 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=232, PETRI_PLACES=58, PETRI_TRANSITIONS=47} [2021-04-28 23:33:23,747 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -22 predicate places. [2021-04-28 23:33:23,747 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:33:23,748 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 47 transitions, 232 flow [2021-04-28 23:33:23,748 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 47 transitions, 232 flow [2021-04-28 23:33:23,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 47 transitions, 232 flow [2021-04-28 23:33:23,765 INFO L129 PetriNetUnfolder]: 15/105 cut-off events. [2021-04-28 23:33:23,765 INFO L130 PetriNetUnfolder]: For 105/108 co-relation queries the response was YES. [2021-04-28 23:33:23,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 105 events. 15/105 cut-off events. For 105/108 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 488 event pairs, 4 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 256. Up to 32 conditions per place. [2021-04-28 23:33:23,769 INFO L146 LiptonReduction]: Number of co-enabled transitions 976 [2021-04-28 23:33:23,775 INFO L158 LiptonReduction]: Checked pairs total: 28 [2021-04-28 23:33:23,776 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:33:23,776 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-04-28 23:33:23,783 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 232 flow [2021-04-28 23:33:23,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 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 23:33:23,785 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:33:23,785 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:33:23,785 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:33:23,785 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:33:23,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:33:23,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1888425620, now seen corresponding path program 1 times [2021-04-28 23:33:23,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:33:23,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104212529] [2021-04-28 23:33:23,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:33:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:33:23,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:23,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:23,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:23,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:23,900 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:33:23,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:33:23,914 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 23:33:23,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104212529] [2021-04-28 23:33:23,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:33:23,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:33:23,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508401084] [2021-04-28 23:33:23,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:33:23,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:33:23,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:33:23,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:33:23,922 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:33:23,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 232 flow. Second operand has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 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 23:33:23,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:33:23,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:33:23,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:33:23,984 INFO L129 PetriNetUnfolder]: 17/141 cut-off events. [2021-04-28 23:33:23,984 INFO L130 PetriNetUnfolder]: For 156/183 co-relation queries the response was YES. [2021-04-28 23:33:23,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 141 events. 17/141 cut-off events. For 156/183 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 766 event pairs, 0 based on Foata normal form. 4/91 useless extension candidates. Maximal degree in co-relation 407. Up to 44 conditions per place. [2021-04-28 23:33:23,986 INFO L132 encePairwiseOnDemand]: 160/168 looper letters, 7 selfloop transitions, 10 changer transitions 16/60 dead transitions. [2021-04-28 23:33:23,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 60 transitions, 406 flow [2021-04-28 23:33:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:33:23,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:33:23,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 541 transitions. [2021-04-28 23:33:23,989 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6440476190476191 [2021-04-28 23:33:23,989 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 541 transitions. [2021-04-28 23:33:23,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 541 transitions. [2021-04-28 23:33:23,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:33:23,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 541 transitions. [2021-04-28 23:33:23,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 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 23:33:23,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 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 23:33:23,996 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 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 23:33:23,997 INFO L185 Difference]: Start difference. First operand has 58 places, 47 transitions, 232 flow. Second operand 5 states and 541 transitions. [2021-04-28 23:33:23,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 60 transitions, 406 flow [2021-04-28 23:33:23,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 60 transitions, 357 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-04-28 23:33:24,001 INFO L241 Difference]: Finished difference. Result has 60 places, 44 transitions, 220 flow [2021-04-28 23:33:24,001 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=220, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2021-04-28 23:33:24,002 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2021-04-28 23:33:24,002 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:33:24,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 44 transitions, 220 flow [2021-04-28 23:33:24,002 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 44 transitions, 220 flow [2021-04-28 23:33:24,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 44 transitions, 220 flow [2021-04-28 23:33:24,014 INFO L129 PetriNetUnfolder]: 8/85 cut-off events. [2021-04-28 23:33:24,014 INFO L130 PetriNetUnfolder]: For 107/114 co-relation queries the response was YES. [2021-04-28 23:33:24,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 85 events. 8/85 cut-off events. For 107/114 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 364 event pairs, 1 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 192. Up to 23 conditions per place. [2021-04-28 23:33:24,017 INFO L146 LiptonReduction]: Number of co-enabled transitions 868 [2021-04-28 23:33:24,024 INFO L158 LiptonReduction]: Checked pairs total: 25 [2021-04-28 23:33:24,025 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:33:24,025 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-28 23:33:24,026 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 220 flow [2021-04-28 23:33:24,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 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 23:33:24,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:33:24,027 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:33:24,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:33:24,028 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:33:24,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:33:24,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1200665510, now seen corresponding path program 2 times [2021-04-28 23:33:24,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:33:24,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912550729] [2021-04-28 23:33:24,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:33:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:33:24,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:24,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:33:24,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:24,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:24,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:24,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:24,085 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:33:24,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:33:24,095 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 23:33:24,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912550729] [2021-04-28 23:33:24,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:33:24,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:33:24,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972038330] [2021-04-28 23:33:24,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:33:24,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:33:24,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:33:24,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:33:24,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:33:24,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 220 flow. Second operand has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 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 23:33:24,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:33:24,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:33:24,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:33:24,158 INFO L129 PetriNetUnfolder]: 4/72 cut-off events. [2021-04-28 23:33:24,159 INFO L130 PetriNetUnfolder]: For 91/108 co-relation queries the response was YES. [2021-04-28 23:33:24,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 72 events. 4/72 cut-off events. For 91/108 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 284 event pairs, 0 based on Foata normal form. 9/50 useless extension candidates. Maximal degree in co-relation 178. Up to 18 conditions per place. [2021-04-28 23:33:24,160 INFO L132 encePairwiseOnDemand]: 161/168 looper letters, 3 selfloop transitions, 5 changer transitions 24/47 dead transitions. [2021-04-28 23:33:24,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 47 transitions, 288 flow [2021-04-28 23:33:24,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:33:24,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:33:24,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 744 transitions. [2021-04-28 23:33:24,163 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2021-04-28 23:33:24,163 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 744 transitions. [2021-04-28 23:33:24,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 744 transitions. [2021-04-28 23:33:24,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:33:24,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 744 transitions. [2021-04-28 23:33:24,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:33:24,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 168.0) internal successors, (1344), 8 states have internal predecessors, (1344), 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 23:33:24,170 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 168.0) internal successors, (1344), 8 states have internal predecessors, (1344), 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 23:33:24,170 INFO L185 Difference]: Start difference. First operand has 59 places, 44 transitions, 220 flow. Second operand 7 states and 744 transitions. [2021-04-28 23:33:24,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 47 transitions, 288 flow [2021-04-28 23:33:24,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 47 transitions, 258 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-04-28 23:33:24,174 INFO L241 Difference]: Finished difference. Result has 62 places, 23 transitions, 119 flow [2021-04-28 23:33:24,174 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=119, PETRI_PLACES=62, PETRI_TRANSITIONS=23} [2021-04-28 23:33:24,174 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2021-04-28 23:33:24,174 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:33:24,175 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 23 transitions, 119 flow [2021-04-28 23:33:24,175 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 23 transitions, 119 flow [2021-04-28 23:33:24,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 23 transitions, 119 flow [2021-04-28 23:33:24,180 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-04-28 23:33:24,180 INFO L130 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2021-04-28 23:33:24,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 27 events. 0/27 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 32 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-04-28 23:33:24,181 INFO L146 LiptonReduction]: Number of co-enabled transitions 152 [2021-04-28 23:33:24,184 INFO L158 LiptonReduction]: Checked pairs total: 15 [2021-04-28 23:33:24,184 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:33:24,185 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-04-28 23:33:24,186 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 23 transitions, 119 flow [2021-04-28 23:33:24,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 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 23:33:24,187 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:33:24,187 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:33:24,187 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:33:24,187 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:33:24,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:33:24,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1400129050, now seen corresponding path program 1 times [2021-04-28 23:33:24,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:33:24,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888994396] [2021-04-28 23:33:24,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:33:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:33:24,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:24,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:24,231 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-04-28 23:33:24,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 23:33:24,237 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 23:33:24,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888994396] [2021-04-28 23:33:24,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:33:24,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:33:24,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117676972] [2021-04-28 23:33:24,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:33:24,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:33:24,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:33:24,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:33:24,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 168 [2021-04-28 23:33:24,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 23 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 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 23:33:24,242 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:33:24,242 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 168 [2021-04-28 23:33:24,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:33:24,368 INFO L129 PetriNetUnfolder]: 369/646 cut-off events. [2021-04-28 23:33:24,368 INFO L130 PetriNetUnfolder]: For 808/865 co-relation queries the response was YES. [2021-04-28 23:33:24,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1446 conditions, 646 events. 369/646 cut-off events. For 808/865 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 3725 event pairs, 171 based on Foata normal form. 15/267 useless extension candidates. Maximal degree in co-relation 1425. Up to 475 conditions per place. [2021-04-28 23:33:24,372 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 11 selfloop transitions, 7 changer transitions 22/51 dead transitions. [2021-04-28 23:33:24,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 51 transitions, 255 flow [2021-04-28 23:33:24,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:33:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:33:24,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 567 transitions. [2021-04-28 23:33:24,375 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.675 [2021-04-28 23:33:24,376 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 567 transitions. [2021-04-28 23:33:24,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 567 transitions. [2021-04-28 23:33:24,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:33:24,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 567 transitions. [2021-04-28 23:33:24,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.4) internal successors, (567), 5 states have internal predecessors, (567), 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 23:33:24,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 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 23:33:24,382 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 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 23:33:24,382 INFO L185 Difference]: Start difference. First operand has 48 places, 23 transitions, 119 flow. Second operand 5 states and 567 transitions. [2021-04-28 23:33:24,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 51 transitions, 255 flow [2021-04-28 23:33:24,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 51 transitions, 209 flow, removed 9 selfloop flow, removed 12 redundant places. [2021-04-28 23:33:24,386 INFO L241 Difference]: Finished difference. Result has 43 places, 29 transitions, 148 flow [2021-04-28 23:33:24,386 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=148, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2021-04-28 23:33:24,386 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -37 predicate places. [2021-04-28 23:33:24,387 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:33:24,387 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 29 transitions, 148 flow [2021-04-28 23:33:24,387 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 29 transitions, 148 flow [2021-04-28 23:33:24,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 148 flow [2021-04-28 23:33:24,430 INFO L129 PetriNetUnfolder]: 252/459 cut-off events. [2021-04-28 23:33:24,430 INFO L130 PetriNetUnfolder]: For 165/309 co-relation queries the response was YES. [2021-04-28 23:33:24,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1346 conditions, 459 events. 252/459 cut-off events. For 165/309 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 2510 event pairs, 144 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 1333. Up to 418 conditions per place. [2021-04-28 23:33:24,436 INFO L146 LiptonReduction]: Number of co-enabled transitions 88 [2021-04-28 23:33:24,463 INFO L158 LiptonReduction]: Checked pairs total: 4 [2021-04-28 23:33:24,463 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 23:33:24,463 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-04-28 23:33:24,464 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 149 flow [2021-04-28 23:33:24,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 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 23:33:24,465 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:33:24,465 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:33:24,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:33:24,465 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:33:24,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:33:24,466 INFO L82 PathProgramCache]: Analyzing trace with hash -454378487, now seen corresponding path program 1 times [2021-04-28 23:33:24,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:33:24,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681344545] [2021-04-28 23:33:24,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:33:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:33:24,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:24,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:24,526 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:33:24,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:33:24,535 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:33:24,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:33:24,545 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 23:33:24,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681344545] [2021-04-28 23:33:24,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:33:24,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:33:24,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442343737] [2021-04-28 23:33:24,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:33:24,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:33:24,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:33:24,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:33:24,549 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 169 [2021-04-28 23:33:24,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 149 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 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 23:33:24,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:33:24,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 169 [2021-04-28 23:33:24,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:33:24,684 INFO L129 PetriNetUnfolder]: 207/438 cut-off events. [2021-04-28 23:33:24,684 INFO L130 PetriNetUnfolder]: For 338/1016 co-relation queries the response was YES. [2021-04-28 23:33:24,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1690 conditions, 438 events. 207/438 cut-off events. For 338/1016 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 2581 event pairs, 27 based on Foata normal form. 18/203 useless extension candidates. Maximal degree in co-relation 1675. Up to 409 conditions per place. [2021-04-28 23:33:24,686 INFO L132 encePairwiseOnDemand]: 157/169 looper letters, 5 selfloop transitions, 13 changer transitions 29/57 dead transitions. [2021-04-28 23:33:24,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 57 transitions, 407 flow [2021-04-28 23:33:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:33:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:33:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 684 transitions. [2021-04-28 23:33:24,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6745562130177515 [2021-04-28 23:33:24,690 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 684 transitions. [2021-04-28 23:33:24,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 684 transitions. [2021-04-28 23:33:24,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:33:24,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 684 transitions. [2021-04-28 23:33:24,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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 23:33:24,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 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 23:33:24,697 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 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 23:33:24,697 INFO L185 Difference]: Start difference. First operand has 41 places, 29 transitions, 149 flow. Second operand 6 states and 684 transitions. [2021-04-28 23:33:24,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 57 transitions, 407 flow [2021-04-28 23:33:24,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 57 transitions, 398 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 23:33:24,702 INFO L241 Difference]: Finished difference. Result has 47 places, 28 transitions, 193 flow [2021-04-28 23:33:24,702 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=193, PETRI_PLACES=47, PETRI_TRANSITIONS=28} [2021-04-28 23:33:24,703 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -33 predicate places. [2021-04-28 23:33:24,703 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:33:24,703 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 28 transitions, 193 flow [2021-04-28 23:33:24,704 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 28 transitions, 193 flow [2021-04-28 23:33:24,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 28 transitions, 193 flow [2021-04-28 23:33:24,724 INFO L129 PetriNetUnfolder]: 36/170 cut-off events. [2021-04-28 23:33:24,724 INFO L130 PetriNetUnfolder]: For 402/561 co-relation queries the response was YES. [2021-04-28 23:33:24,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 170 events. 36/170 cut-off events. For 402/561 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1167 event pairs, 27 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 723. Up to 142 conditions per place. [2021-04-28 23:33:24,726 INFO L146 LiptonReduction]: Number of co-enabled transitions 78 [2021-04-28 23:33:24,730 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:33:24,730 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:33:24,730 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-04-28 23:33:24,732 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 28 transitions, 193 flow [2021-04-28 23:33:24,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 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 23:33:24,732 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:33:24,732 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:33:24,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:33:24,733 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:33:24,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:33:24,733 INFO L82 PathProgramCache]: Analyzing trace with hash -851148630, now seen corresponding path program 1 times [2021-04-28 23:33:24,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:33:24,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775810613] [2021-04-28 23:33:24,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:33:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:33:24,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:24,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:24,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:33:24,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:33:24,780 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:33:24,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:33:24,786 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:33:24,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:33:24,794 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 23:33:24,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775810613] [2021-04-28 23:33:24,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:33:24,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:33:24,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594720692] [2021-04-28 23:33:24,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:33:24,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:33:24,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:33:24,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:33:24,798 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 169 [2021-04-28 23:33:24,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 28 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 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 23:33:24,799 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:33:24,799 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 169 [2021-04-28 23:33:24,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:33:24,882 INFO L129 PetriNetUnfolder]: 9/125 cut-off events. [2021-04-28 23:33:24,882 INFO L130 PetriNetUnfolder]: For 266/719 co-relation queries the response was YES. [2021-04-28 23:33:24,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 125 events. 9/125 cut-off events. For 266/719 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 907 event pairs, 0 based on Foata normal form. 13/76 useless extension candidates. Maximal degree in co-relation 629. Up to 115 conditions per place. [2021-04-28 23:33:24,883 INFO L132 encePairwiseOnDemand]: 157/169 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2021-04-28 23:33:24,883 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 31 transitions, 259 flow [2021-04-28 23:33:24,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:33:24,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:33:24,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 764 transitions. [2021-04-28 23:33:24,886 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6458157227387996 [2021-04-28 23:33:24,887 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 764 transitions. [2021-04-28 23:33:24,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 764 transitions. [2021-04-28 23:33:24,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:33:24,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 764 transitions. [2021-04-28 23:33:24,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 109.14285714285714) internal successors, (764), 7 states have internal predecessors, (764), 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 23:33:24,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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 23:33:24,893 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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 23:33:24,893 INFO L185 Difference]: Start difference. First operand has 44 places, 28 transitions, 193 flow. Second operand 7 states and 764 transitions. [2021-04-28 23:33:24,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 31 transitions, 259 flow [2021-04-28 23:33:24,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 31 transitions, 190 flow, removed 24 selfloop flow, removed 6 redundant places. [2021-04-28 23:33:24,896 INFO L241 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2021-04-28 23:33:24,896 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2021-04-28 23:33:24,897 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -37 predicate places. [2021-04-28 23:33:24,897 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:33:24,897 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 0 transitions, 0 flow [2021-04-28 23:33:24,897 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 0 transitions, 0 flow [2021-04-28 23:33:24,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:33:24,898 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:33:24,898 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:33:24,898 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 23:33:24,898 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:33:24,898 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:33:24,898 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:33:24,899 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:33:24,900 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:33:24,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 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 23:33:24,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:33:24,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:33:24 BasicIcfg [2021-04-28 23:33:24,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:33:24,913 INFO L168 Benchmark]: Toolchain (without parser) took 15383.52 ms. Allocated memory was 316.7 MB in the beginning and 459.3 MB in the end (delta: 142.6 MB). Free memory was 291.9 MB in the beginning and 224.7 MB in the end (delta: 67.2 MB). Peak memory consumption was 211.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:33:24,914 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 316.7 MB. Free memory is still 287.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:33:24,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.48 ms. Allocated memory is still 316.7 MB. Free memory was 288.9 MB in the beginning and 297.2 MB in the end (delta: -8.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. [2021-04-28 23:33:24,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.79 ms. Allocated memory is still 316.7 MB. Free memory was 297.2 MB in the beginning and 295.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:33:24,924 INFO L168 Benchmark]: Boogie Preprocessor took 54.71 ms. Allocated memory is still 316.7 MB. Free memory was 295.1 MB in the beginning and 294.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:33:24,924 INFO L168 Benchmark]: RCFGBuilder took 550.74 ms. Allocated memory is still 316.7 MB. Free memory was 294.0 MB in the beginning and 271.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:33:24,925 INFO L168 Benchmark]: TraceAbstraction took 13962.16 ms. Allocated memory was 316.7 MB in the beginning and 459.3 MB in the end (delta: 142.6 MB). Free memory was 271.0 MB in the beginning and 224.7 MB in the end (delta: 46.2 MB). Peak memory consumption was 191.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:33:24,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 316.7 MB. Free memory is still 287.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 664.48 ms. Allocated memory is still 316.7 MB. Free memory was 288.9 MB in the beginning and 297.2 MB in the end (delta: -8.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 91.79 ms. Allocated memory is still 316.7 MB. Free memory was 297.2 MB in the beginning and 295.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 54.71 ms. Allocated memory is still 316.7 MB. Free memory was 295.1 MB in the beginning and 294.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 550.74 ms. Allocated memory is still 316.7 MB. Free memory was 294.0 MB in the beginning and 271.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 13962.16 ms. Allocated memory was 316.7 MB in the beginning and 459.3 MB in the end (delta: 142.6 MB). Free memory was 271.0 MB in the beginning and 224.7 MB in the end (delta: 46.2 MB). Peak memory consumption was 191.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11072.1ms, 68 PlacesBefore, 80 PlacesAfterwards, 59 TransitionsBefore, 70 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 94 TotalNumberOfCompositions, 6642 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1536, positive: 1336, positive conditional: 1336, 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: 855, positive: 806, positive conditional: 0, positive unconditional: 806, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 855, positive: 806, positive conditional: 0, positive unconditional: 806, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 855, positive: 784, positive conditional: 0, positive unconditional: 784, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 71, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 378, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 258, negative conditional: 0, negative unconditional: 258, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1536, positive: 530, positive conditional: 530, positive unconditional: 0, negative: 151, negative conditional: 151, negative unconditional: 0, unknown: 855, unknown conditional: 855, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 845, Positive cache size: 796, Positive conditional cache size: 796, 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: 53.2ms, 81 PlacesBefore, 50 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 1024 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 1, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 1, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 0, positive conditional: 0, 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): 850, Positive cache size: 801, Positive conditional cache size: 801, 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: 45.5ms, 51 PlacesBefore, 51 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1132 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 854, Positive cache size: 804, Positive conditional cache size: 804, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.7ms, 56 PlacesBefore, 53 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1084 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 30 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 856, Positive cache size: 806, Positive conditional cache size: 806, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.0ms, 58 PlacesBefore, 58 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 976 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, 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: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 856, Positive cache size: 806, Positive conditional cache size: 806, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.3ms, 60 PlacesBefore, 59 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 868 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 25 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, 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: 3, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 857, Positive cache size: 807, Positive conditional cache size: 807, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.6ms, 62 PlacesBefore, 48 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, 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: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 858, Positive cache size: 808, Positive conditional cache size: 808, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 75.7ms, 43 PlacesBefore, 41 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 88 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 862, Positive cache size: 812, Positive conditional cache size: 812, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.7ms, 47 PlacesBefore, 44 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 78 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): 862, Positive cache size: 812, Positive conditional cache size: 812, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3ms, 43 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): 862, Positive cache size: 812, Positive conditional cache size: 812, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, 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, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 13.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 13744.4ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1138.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11230.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 83 SDtfs, 58 SDslu, 39 SDs, 0 SdLazy, 262 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 252.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 160.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred in iteration=4, 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: 27.5ms SsaConstructionTime, 187.8ms SatisfiabilityAnalysisTime, 590.1ms InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 497 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...