/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-lit/qw2004-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:54:42,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:54:42,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:54:42,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:54:42,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:54:42,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:54:42,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:54:42,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:54:42,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:54:42,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:54:42,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:54:42,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:54:42,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:54:42,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:54:42,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:54:42,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:54:42,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:54:42,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:54:42,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:54:42,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:54:42,788 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 [2021-03-26 00:54:42,807 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:54:42,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:54:42,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:54:42,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:54:42,809 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:54:42,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:54:42,810 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:54:42,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:54:42,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:54:42,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:54:42,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:54:42,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:54:42,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:54:42,811 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:54:42,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:54:42,811 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:54:42,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:54:42,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:54:42,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:54:42,811 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:54:42,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:54:42,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:54:42,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:54:42,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:54:42,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:54:42,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:54:42,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:54:42,812 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:54:42,812 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:54:42,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:54:42,813 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:54:43,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:54:43,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:54:43,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:54:43,206 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:54:43,206 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:54:43,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i [2021-03-26 00:54:43,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f2b372ce/62ef8cf7802149dea5efb1b6c8488497/FLAG175550d6f [2021-03-26 00:54:43,906 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:54:43,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i [2021-03-26 00:54:43,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f2b372ce/62ef8cf7802149dea5efb1b6c8488497/FLAG175550d6f [2021-03-26 00:54:44,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f2b372ce/62ef8cf7802149dea5efb1b6c8488497 [2021-03-26 00:54:44,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:54:44,305 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:54:44,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:54:44,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:54:44,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:54:44,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:54:44" (1/1) ... [2021-03-26 00:54:44,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20af927c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44, skipping insertion in model container [2021-03-26 00:54:44,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:54:44" (1/1) ... [2021-03-26 00:54:44,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:54:44,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:54:44,752 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-lit/qw2004-2.i[30003,30016] [2021-03-26 00:54:44,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:54:44,779 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:54:44,826 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-lit/qw2004-2.i[30003,30016] [2021-03-26 00:54:44,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:54:44,895 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:54:44,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44 WrapperNode [2021-03-26 00:54:44,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:54:44,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:54:44,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:54:44,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:54:44,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44" (1/1) ... [2021-03-26 00:54:44,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44" (1/1) ... [2021-03-26 00:54:44,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:54:44,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:54:44,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:54:44,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:54:44,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44" (1/1) ... [2021-03-26 00:54:44,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44" (1/1) ... [2021-03-26 00:54:44,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44" (1/1) ... [2021-03-26 00:54:44,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44" (1/1) ... [2021-03-26 00:54:44,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44" (1/1) ... [2021-03-26 00:54:44,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44" (1/1) ... [2021-03-26 00:54:44,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44" (1/1) ... [2021-03-26 00:54:44,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:54:44,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:54:44,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:54:44,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:54:44,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:54:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2021-03-26 00:54:45,038 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2021-03-26 00:54:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:54:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:54:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:54:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:54:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:54:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:54:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:54:45,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:54:45,041 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:54:45,521 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:54:45,521 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-03-26 00:54:45,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:54:45 BoogieIcfgContainer [2021-03-26 00:54:45,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:54:45,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:54:45,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:54:45,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:54:45,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:54:44" (1/3) ... [2021-03-26 00:54:45,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6c5356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:54:45, skipping insertion in model container [2021-03-26 00:54:45,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:54:44" (2/3) ... [2021-03-26 00:54:45,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6c5356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:54:45, skipping insertion in model container [2021-03-26 00:54:45,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:54:45" (3/3) ... [2021-03-26 00:54:45,532 INFO L111 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2021-03-26 00:54:45,538 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:54:45,542 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:54:45,543 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:54:45,582 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,582 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,582 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,583 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,583 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,583 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,583 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,583 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,583 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,584 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,584 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,584 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,584 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,584 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,584 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,584 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,584 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,585 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,585 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,585 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,585 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,585 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,586 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,586 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,586 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,586 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,586 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,587 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,587 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,587 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,588 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,588 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,588 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,588 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,588 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,589 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,590 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,590 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,591 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,591 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,591 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,592 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,592 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,592 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,592 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,593 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,593 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,593 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,593 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,593 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,593 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,593 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,594 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,594 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,594 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,594 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,594 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,594 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,594 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,594 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,595 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,596 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,596 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,596 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,598 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,598 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,598 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,598 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,598 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,599 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,599 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,599 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,599 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,600 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,600 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,600 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:54:45,603 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:54:45,621 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 00:54:45,649 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:54:45,650 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:54:45,651 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:54:45,651 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:54:45,651 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:54:45,651 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:54:45,651 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:54:45,651 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:54:45,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 96 transitions, 197 flow [2021-03-26 00:54:45,718 INFO L129 PetriNetUnfolder]: 6/95 cut-off events. [2021-03-26 00:54:45,718 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:54:45,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 95 events. 6/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 75. Up to 3 conditions per place. [2021-03-26 00:54:45,723 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 96 transitions, 197 flow [2021-03-26 00:54:45,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 95 transitions, 193 flow [2021-03-26 00:54:45,730 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:54:45,745 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 95 transitions, 193 flow [2021-03-26 00:54:45,749 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 95 transitions, 193 flow [2021-03-26 00:54:45,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 95 transitions, 193 flow [2021-03-26 00:54:45,769 INFO L129 PetriNetUnfolder]: 6/95 cut-off events. [2021-03-26 00:54:45,770 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:54:45,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 95 events. 6/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 75. Up to 3 conditions per place. [2021-03-26 00:54:45,774 INFO L142 LiptonReduction]: Number of co-enabled transitions 2500 [2021-03-26 00:54:47,662 INFO L154 LiptonReduction]: Checked pairs total: 1915 [2021-03-26 00:54:47,663 INFO L156 LiptonReduction]: Total number of compositions: 76 [2021-03-26 00:54:47,665 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1936 [2021-03-26 00:54:47,676 INFO L129 PetriNetUnfolder]: 2/19 cut-off events. [2021-03-26 00:54:47,676 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:54:47,676 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:54:47,677 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:54:47,677 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:54:47,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:54:47,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1324884714, now seen corresponding path program 1 times [2021-03-26 00:54:47,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:54:47,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345757020] [2021-03-26 00:54:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:54:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:54:47,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:54:47,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:54:47,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:54:47,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:54:47,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:54:47,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:54:47,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:54:47,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:54:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:54:47,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345757020] [2021-03-26 00:54:47,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:54:47,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:54:47,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981045858] [2021-03-26 00:54:47,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:54:47,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:54:47,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:54:47,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:54:47,886 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 172 [2021-03-26 00:54:47,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 36 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:47,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:54:47,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 172 [2021-03-26 00:54:47,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:54:47,955 INFO L129 PetriNetUnfolder]: 8/70 cut-off events. [2021-03-26 00:54:47,955 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:54:47,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 70 events. 8/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 250 event pairs, 0 based on Foata normal form. 6/64 useless extension candidates. Maximal degree in co-relation 73. Up to 6 conditions per place. [2021-03-26 00:54:47,959 INFO L132 encePairwiseOnDemand]: 165/172 looper letters, 5 selfloop transitions, 5 changer transitions 0/36 dead transitions. [2021-03-26 00:54:47,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 95 flow [2021-03-26 00:54:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:54:47,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:54:47,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 747 transitions. [2021-03-26 00:54:47,987 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8686046511627907 [2021-03-26 00:54:47,988 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 747 transitions. [2021-03-26 00:54:47,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 747 transitions. [2021-03-26 00:54:47,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:54:47,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 747 transitions. [2021-03-26 00:54:48,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 149.4) internal successors, (747), 5 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:48,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:48,013 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:48,015 INFO L185 Difference]: Start difference. First operand has 35 places, 36 transitions, 75 flow. Second operand 5 states and 747 transitions. [2021-03-26 00:54:48,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 95 flow [2021-03-26 00:54:48,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:54:48,019 INFO L241 Difference]: Finished difference. Result has 40 places, 35 transitions, 100 flow [2021-03-26 00:54:48,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2021-03-26 00:54:48,021 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2021-03-26 00:54:48,022 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:54:48,022 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 35 transitions, 100 flow [2021-03-26 00:54:48,022 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 35 transitions, 100 flow [2021-03-26 00:54:48,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 35 transitions, 100 flow [2021-03-26 00:54:48,030 INFO L129 PetriNetUnfolder]: 6/68 cut-off events. [2021-03-26 00:54:48,030 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-26 00:54:48,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 68 events. 6/68 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 242 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 74. Up to 6 conditions per place. [2021-03-26 00:54:48,032 INFO L142 LiptonReduction]: Number of co-enabled transitions 318 [2021-03-26 00:54:48,574 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-03-26 00:54:49,154 INFO L154 LiptonReduction]: Checked pairs total: 445 [2021-03-26 00:54:49,154 INFO L156 LiptonReduction]: Total number of compositions: 18 [2021-03-26 00:54:49,154 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1132 [2021-03-26 00:54:49,155 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 70 flow [2021-03-26 00:54:49,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:49,156 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:54:49,156 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:54:49,156 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:54:49,156 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:54:49,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:54:49,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1858701532, now seen corresponding path program 1 times [2021-03-26 00:54:49,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:54:49,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711568853] [2021-03-26 00:54:49,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:54:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:54:49,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:54:49,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:54:49,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:54:49,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:54:49,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:54:49,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:54:49,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:54:49,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711568853] [2021-03-26 00:54:49,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:54:49,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:54:49,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913458370] [2021-03-26 00:54:49,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:54:49,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:54:49,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:54:49,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:54:49,201 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 190 [2021-03-26 00:54:49,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:49,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:54:49,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 190 [2021-03-26 00:54:49,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:54:49,226 INFO L129 PetriNetUnfolder]: 3/34 cut-off events. [2021-03-26 00:54:49,226 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-26 00:54:49,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 34 events. 3/34 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 99 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 53. Up to 9 conditions per place. [2021-03-26 00:54:49,227 INFO L132 encePairwiseOnDemand]: 188/190 looper letters, 4 selfloop transitions, 0 changer transitions 6/21 dead transitions. [2021-03-26 00:54:49,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 21 transitions, 86 flow [2021-03-26 00:54:49,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:54:49,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:54:49,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 494 transitions. [2021-03-26 00:54:49,230 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2021-03-26 00:54:49,230 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 494 transitions. [2021-03-26 00:54:49,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 494 transitions. [2021-03-26 00:54:49,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:54:49,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 494 transitions. [2021-03-26 00:54:49,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:49,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:49,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:49,233 INFO L185 Difference]: Start difference. First operand has 26 places, 20 transitions, 70 flow. Second operand 3 states and 494 transitions. [2021-03-26 00:54:49,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 21 transitions, 86 flow [2021-03-26 00:54:49,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 86 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 00:54:49,234 INFO L241 Difference]: Finished difference. Result has 29 places, 15 transitions, 58 flow [2021-03-26 00:54:49,234 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=29, PETRI_TRANSITIONS=15} [2021-03-26 00:54:49,235 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, -6 predicate places. [2021-03-26 00:54:49,235 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:54:49,235 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 15 transitions, 58 flow [2021-03-26 00:54:49,235 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 15 transitions, 58 flow [2021-03-26 00:54:49,236 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 15 transitions, 58 flow [2021-03-26 00:54:49,238 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 00:54:49,238 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 00:54:49,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 21 events. 0/21 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 47 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 00:54:49,238 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-26 00:54:49,621 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:54:49,795 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:54:50,062 INFO L154 LiptonReduction]: Checked pairs total: 90 [2021-03-26 00:54:50,062 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 00:54:50,063 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 828 [2021-03-26 00:54:50,064 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 12 transitions, 52 flow [2021-03-26 00:54:50,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:50,064 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:54:50,064 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:54:50,065 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:54:50,065 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:54:50,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:54:50,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1401041197, now seen corresponding path program 1 times [2021-03-26 00:54:50,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:54:50,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108371306] [2021-03-26 00:54:50,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:54:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:54:50,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:54:50,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:54:50,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:54:50,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:54:50,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:54:50,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108371306] [2021-03-26 00:54:50,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:54:50,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:54:50,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028732863] [2021-03-26 00:54:50,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:54:50,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:54:50,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:54:50,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:54:50,109 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 194 [2021-03-26 00:54:50,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 12 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:50,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:54:50,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 194 [2021-03-26 00:54:50,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:54:50,118 INFO L129 PetriNetUnfolder]: 1/16 cut-off events. [2021-03-26 00:54:50,118 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-26 00:54:50,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 16 events. 1/16 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 28 event pairs, 0 based on Foata normal form. 2/18 useless extension candidates. Maximal degree in co-relation 30. Up to 5 conditions per place. [2021-03-26 00:54:50,118 INFO L132 encePairwiseOnDemand]: 191/194 looper letters, 1 selfloop transitions, 2 changer transitions 1/12 dead transitions. [2021-03-26 00:54:50,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 12 transitions, 58 flow [2021-03-26 00:54:50,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:54:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:54:50,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2021-03-26 00:54:50,120 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8573883161512027 [2021-03-26 00:54:50,120 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2021-03-26 00:54:50,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2021-03-26 00:54:50,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:54:50,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2021-03-26 00:54:50,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:50,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:50,123 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:50,124 INFO L185 Difference]: Start difference. First operand has 21 places, 12 transitions, 52 flow. Second operand 3 states and 499 transitions. [2021-03-26 00:54:50,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 12 transitions, 58 flow [2021-03-26 00:54:50,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 12 transitions, 52 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 00:54:50,125 INFO L241 Difference]: Finished difference. Result has 21 places, 11 transitions, 52 flow [2021-03-26 00:54:50,125 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=21, PETRI_TRANSITIONS=11} [2021-03-26 00:54:50,125 INFO L343 CegarLoopForPetriNet]: 35 programPoint places, -14 predicate places. [2021-03-26 00:54:50,125 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:54:50,125 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 11 transitions, 52 flow [2021-03-26 00:54:50,125 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 11 transitions, 52 flow [2021-03-26 00:54:50,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 11 transitions, 52 flow [2021-03-26 00:54:50,128 INFO L129 PetriNetUnfolder]: 1/14 cut-off events. [2021-03-26 00:54:50,128 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 00:54:50,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 14 events. 1/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 27. Up to 5 conditions per place. [2021-03-26 00:54:50,128 INFO L142 LiptonReduction]: Number of co-enabled transitions 12 [2021-03-26 00:54:50,168 INFO L154 LiptonReduction]: Checked pairs total: 16 [2021-03-26 00:54:50,168 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:54:50,168 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-26 00:54:50,169 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 52 flow [2021-03-26 00:54:50,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:54:50,170 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:54:50,170 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:54:50,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:54:50,170 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:54:50,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:54:50,171 INFO L82 PathProgramCache]: Analyzing trace with hash -309774633, now seen corresponding path program 1 times [2021-03-26 00:54:50,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:54:50,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889781001] [2021-03-26 00:54:50,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:54:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:54:50,188 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:54:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:54:50,206 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:54:50,231 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 00:54:50,231 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 00:54:50,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:54:50,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:54:50 BasicIcfg [2021-03-26 00:54:50,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:54:50,254 INFO L168 Benchmark]: Toolchain (without parser) took 5949.28 ms. Allocated memory was 362.8 MB in the beginning and 448.8 MB in the end (delta: 86.0 MB). Free memory was 326.0 MB in the beginning and 297.9 MB in the end (delta: 28.2 MB). Peak memory consumption was 116.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:54:50,254 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 362.8 MB. Free memory was 344.4 MB in the beginning and 344.3 MB in the end (delta: 76.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:54:50,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.72 ms. Allocated memory is still 362.8 MB. Free memory was 325.9 MB in the beginning and 324.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:54:50,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.38 ms. Allocated memory is still 362.8 MB. Free memory was 324.8 MB in the beginning and 322.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:54:50,256 INFO L168 Benchmark]: Boogie Preprocessor took 23.63 ms. Allocated memory is still 362.8 MB. Free memory was 322.7 MB in the beginning and 321.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:54:50,256 INFO L168 Benchmark]: RCFGBuilder took 564.06 ms. Allocated memory is still 362.8 MB. Free memory was 321.6 MB in the beginning and 292.2 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-03-26 00:54:50,257 INFO L168 Benchmark]: TraceAbstraction took 4726.91 ms. Allocated memory was 362.8 MB in the beginning and 448.8 MB in the end (delta: 86.0 MB). Free memory was 292.2 MB in the beginning and 297.9 MB in the end (delta: -5.6 MB). Peak memory consumption was 81.4 MB. Max. memory is 16.0 GB. [2021-03-26 00:54:50,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 362.8 MB. Free memory was 344.4 MB in the beginning and 344.3 MB in the end (delta: 76.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 587.72 ms. Allocated memory is still 362.8 MB. Free memory was 325.9 MB in the beginning and 324.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 37.38 ms. Allocated memory is still 362.8 MB. Free memory was 324.8 MB in the beginning and 322.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 23.63 ms. Allocated memory is still 362.8 MB. Free memory was 322.7 MB in the beginning and 321.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 564.06 ms. Allocated memory is still 362.8 MB. Free memory was 321.6 MB in the beginning and 292.2 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4726.91 ms. Allocated memory was 362.8 MB in the beginning and 448.8 MB in the end (delta: 86.0 MB). Free memory was 292.2 MB in the beginning and 297.9 MB in the end (delta: -5.6 MB). Peak memory consumption was 81.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1914.1ms, 93 PlacesBefore, 35 PlacesAfterwards, 95 TransitionsBefore, 36 TransitionsAfterwards, 2500 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 1915 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1713, positive: 1690, positive conditional: 1690, positive unconditional: 0, negative: 23, negative conditional: 23, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1529, positive: 1514, positive conditional: 0, positive unconditional: 1514, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1529, positive: 1514, positive conditional: 0, positive unconditional: 1514, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1529, positive: 1513, positive conditional: 0, positive unconditional: 1513, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 74, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1713, positive: 176, positive conditional: 176, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 1529, unknown conditional: 1529, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 35, Positive conditional cache size: 35, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1131.6ms, 40 PlacesBefore, 26 PlacesAfterwards, 35 TransitionsBefore, 20 TransitionsAfterwards, 318 CoEnabledTransitionPairs, 4 FixpointIterations, 4 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 18 TotalNumberOfCompositions, 445 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 249, positive: 218, positive conditional: 218, positive unconditional: 0, negative: 31, negative conditional: 31, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 159, positive: 148, positive conditional: 16, positive unconditional: 132, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 159, positive: 148, positive conditional: 16, positive unconditional: 132, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 159, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 62, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 249, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 159, unknown conditional: 159, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 11, Positive conditional cache size: 11, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 827.2ms, 29 PlacesBefore, 21 PlacesAfterwards, 15 TransitionsBefore, 12 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, positive: 20, positive conditional: 2, positive unconditional: 18, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, positive: 20, positive conditional: 2, positive unconditional: 18, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 30, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 55, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 30, unknown conditional: 30, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 8, Positive conditional cache size: 8, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.8ms, 21 PlacesBefore, 20 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 12 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 39, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 8, Positive conditional cache size: 8, Positive unconditional cache size: 0, Negative cache size: 7, Negative conditional cache size: 7, Negative unconditional cache size: 0 - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 volatile int stoppingFlag; [L698] 0 volatile int pendingIo; [L699] 0 volatile int stoppingEvent; [L700] 0 volatile int stopped; [L755] 0 pthread_t t; [L756] 0 pendingIo = 1 [L757] 0 stoppingFlag = 0 [L758] 0 stoppingEvent = 0 [L759] 0 stopped = 0 [L760] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L734] 0 int status; [L703] 0 int lsf = stoppingFlag; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L744] 1 stoppingFlag = 1 [L725] 1 int pending; [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; [L722] 1 return tmp; [L726] 1 pending = dec() [L727] COND TRUE 1 pending == 0 [L729] 1 stoppingEvent = 1 [L748] 1 int lse = stoppingEvent; [L686] COND FALSE 1 !(!cond) [L751] 1 stopped = 1 [L752] 1 return 0; [L705] COND FALSE 0 !(\read(lsf)) [L709] 0 int lp = pendingIo; VAL [pendingIo=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L712] 0 pendingIo = lp + 1 [L715] 0 return 0; [L735] 0 status = BCSP_IoIncrement() [L736] COND TRUE 0 status == 0 [L689] COND TRUE 0 !(cond) [L690] 0 reach_error() VAL [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 4586.9ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 193.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2020.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 13 SDtfs, 5 SDslu, 5 SDs, 0 SdLazy, 16 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=1, InterpolantAutomatonStates: 11, 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: 9.0ms SsaConstructionTime, 54.8ms SatisfiabilityAnalysisTime, 128.1ms InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...