/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 06:53:27,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 06:53:27,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 06:53:27,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 06:53:27,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 06:53:27,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 06:53:27,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 06:53:27,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 06:53:27,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 06:53:27,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 06:53:27,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 06:53:27,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 06:53:27,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 06:53:27,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 06:53:27,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 06:53:27,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 06:53:27,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 06:53:27,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 06:53:27,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 06:53:27,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 06:53:27,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 06:53:27,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 06:53:27,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 06:53:27,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 06:53:27,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 06:53:27,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 06:53:27,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 06:53:27,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 06:53:27,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 06:53:27,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 06:53:27,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 06:53:27,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 06:53:27,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 06:53:27,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 06:53:27,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 06:53:27,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 06:53:27,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 06:53:27,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 06:53:27,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 06:53:27,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 06:53:27,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 06:53:27,270 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-06-11 06:53:27,302 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 06:53:27,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 06:53:27,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 06:53:27,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 06:53:27,305 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 06:53:27,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 06:53:27,305 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 06:53:27,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 06:53:27,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 06:53:27,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 06:53:27,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 06:53:27,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 06:53:27,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 06:53:27,307 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 06:53:27,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 06:53:27,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 06:53:27,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 06:53:27,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 06:53:27,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 06:53:27,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 06:53:27,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 06:53:27,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:53:27,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 06:53:27,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 06:53:27,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 06:53:27,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 06:53:27,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 06:53:27,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 06:53:27,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 06:53:27,310 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 06:53:27,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 06:53:27,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 06:53:27,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 06:53:27,639 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 06:53:27,639 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 06:53:27,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i [2021-06-11 06:53:27,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5dcfc37/2a81ac92a1424aa389efc5f1dee8d6d5/FLAGfb74bda74 [2021-06-11 06:53:28,183 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 06:53:28,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i [2021-06-11 06:53:28,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5dcfc37/2a81ac92a1424aa389efc5f1dee8d6d5/FLAGfb74bda74 [2021-06-11 06:53:28,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5dcfc37/2a81ac92a1424aa389efc5f1dee8d6d5 [2021-06-11 06:53:28,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 06:53:28,718 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 06:53:28,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 06:53:28,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 06:53:28,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 06:53:28,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:53:28" (1/1) ... [2021-06-11 06:53:28,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bcc488e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:28, skipping insertion in model container [2021-06-11 06:53:28,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:53:28" (1/1) ... [2021-06-11 06:53:28,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 06:53:28,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 06:53:28,931 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/safe020_tso.opt.i[949,962] [2021-06-11 06:53:29,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:53:29,099 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 06:53:29,110 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/safe020_tso.opt.i[949,962] [2021-06-11 06:53:29,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:53:29,193 INFO L208 MainTranslator]: Completed translation [2021-06-11 06:53:29,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29 WrapperNode [2021-06-11 06:53:29,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 06:53:29,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 06:53:29,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 06:53:29,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 06:53:29,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29" (1/1) ... [2021-06-11 06:53:29,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29" (1/1) ... [2021-06-11 06:53:29,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 06:53:29,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 06:53:29,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 06:53:29,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 06:53:29,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29" (1/1) ... [2021-06-11 06:53:29,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29" (1/1) ... [2021-06-11 06:53:29,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29" (1/1) ... [2021-06-11 06:53:29,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29" (1/1) ... [2021-06-11 06:53:29,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29" (1/1) ... [2021-06-11 06:53:29,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29" (1/1) ... [2021-06-11 06:53:29,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29" (1/1) ... [2021-06-11 06:53:29,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 06:53:29,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 06:53:29,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 06:53:29,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 06:53:29,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:53:29,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 06:53:29,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 06:53:29,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 06:53:29,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 06:53:29,317 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 06:53:29,317 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 06:53:29,317 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 06:53:29,317 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 06:53:29,317 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 06:53:29,317 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 06:53:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 06:53:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 06:53:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 06:53:29,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 06:53:29,319 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 06:53:29,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 06:53:29,574 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 06:53:29,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:53:29 BoogieIcfgContainer [2021-06-11 06:53:29,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 06:53:29,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 06:53:29,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 06:53:29,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 06:53:29,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 06:53:28" (1/3) ... [2021-06-11 06:53:29,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124cc272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:53:29, skipping insertion in model container [2021-06-11 06:53:29,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:53:29" (2/3) ... [2021-06-11 06:53:29,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124cc272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:53:29, skipping insertion in model container [2021-06-11 06:53:29,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:53:29" (3/3) ... [2021-06-11 06:53:29,581 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_tso.opt.i [2021-06-11 06:53:29,586 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 06:53:29,589 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 06:53:29,590 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 06:53:29,615 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,615 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,616 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,616 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,616 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,616 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,616 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,616 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,617 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,618 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,618 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,618 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,618 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,619 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,619 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,619 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,620 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,620 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,620 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,620 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,620 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,620 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,621 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,621 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,621 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,623 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,623 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,623 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,632 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,637 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,637 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,637 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,638 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:53:29,639 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 06:53:29,656 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 06:53:29,685 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 06:53:29,685 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 06:53:29,685 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 06:53:29,685 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 06:53:29,685 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 06:53:29,686 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 06:53:29,686 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 06:53:29,686 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 06:53:29,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-06-11 06:53:29,752 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-06-11 06:53:29,753 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:53:29,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-06-11 06:53:29,758 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-06-11 06:53:29,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-06-11 06:53:29,766 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:53:29,783 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-11 06:53:29,786 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-11 06:53:29,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-06-11 06:53:29,809 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-06-11 06:53:29,810 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:53:29,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-06-11 06:53:29,813 INFO L151 LiptonReduction]: Number of co-enabled transitions 804 [2021-06-11 06:53:29,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:29,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:29,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:29,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:53:30,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:53:30,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:53:30,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:53:30,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:53:30,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:53:30,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:53:30,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:53:30,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:53:30,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:53:30,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:53:30,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:53:30,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:53:30,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 06:53:30,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:53:30,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:30,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:30,883 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-11 06:53:30,920 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 06:53:30,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:31,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:31,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:53:31,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:31,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:53:31,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:53:31,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:31,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:31,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:31,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:31,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:31,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:31,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:31,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:31,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:31,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:31,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:31,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:31,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:31,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:31,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:31,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:53:31,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:31,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:31,792 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-06-11 06:53:31,973 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-06-11 06:53:32,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:32,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:53:32,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:32,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:53:32,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 06:53:32,197 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-11 06:53:32,390 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-11 06:53:32,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:32,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:53:32,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:32,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:53:32,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:53:32,467 INFO L163 LiptonReduction]: Checked pairs total: 1446 [2021-06-11 06:53:32,467 INFO L165 LiptonReduction]: Total number of compositions: 45 [2021-06-11 06:53:32,470 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2705 [2021-06-11 06:53:32,477 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-06-11 06:53:32,477 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:53:32,478 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:53:32,478 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:53:32,478 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:53:32,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:53:32,482 INFO L82 PathProgramCache]: Analyzing trace with hash 21371729, now seen corresponding path program 1 times [2021-06-11 06:53:32,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:53:32,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897055481] [2021-06-11 06:53:32,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:53:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:53:32,716 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:53:32,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:53:32,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:53:32,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897055481] [2021-06-11 06:53:32,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:53:32,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:53:32,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642700343] [2021-06-11 06:53:32,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:53:32,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:53:32,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:53:32,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:53:32,750 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 118 [2021-06-11 06:53:32,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:32,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:53:32,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 118 [2021-06-11 06:53:32,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:53:32,786 INFO L129 PetriNetUnfolder]: 11/51 cut-off events. [2021-06-11 06:53:32,786 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:53:32,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 51 events. 11/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 169 event pairs, 7 based on Foata normal form. 4/53 useless extension candidates. Maximal degree in co-relation 84. Up to 26 conditions per place. [2021-06-11 06:53:32,788 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 4 selfloop transitions, 5 changer transitions 0/19 dead transitions. [2021-06-11 06:53:32,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 65 flow [2021-06-11 06:53:32,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:53:32,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:53:32,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2021-06-11 06:53:32,804 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7909604519774012 [2021-06-11 06:53:32,805 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2021-06-11 06:53:32,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2021-06-11 06:53:32,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:53:32,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2021-06-11 06:53:32,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:32,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:32,823 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:32,825 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states and 280 transitions. [2021-06-11 06:53:32,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 65 flow [2021-06-11 06:53:32,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 62 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 06:53:32,832 INFO L241 Difference]: Finished difference. Result has 26 places, 19 transitions, 67 flow [2021-06-11 06:53:32,834 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2021-06-11 06:53:32,835 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2021-06-11 06:53:32,835 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:53:32,835 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 19 transitions, 67 flow [2021-06-11 06:53:32,836 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 19 transitions, 67 flow [2021-06-11 06:53:32,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 19 transitions, 67 flow [2021-06-11 06:53:32,849 INFO L129 PetriNetUnfolder]: 11/50 cut-off events. [2021-06-11 06:53:32,849 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-06-11 06:53:32,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 50 events. 11/50 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 151 event pairs, 5 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 89. Up to 26 conditions per place. [2021-06-11 06:53:32,851 INFO L151 LiptonReduction]: Number of co-enabled transitions 110 [2021-06-11 06:53:32,854 INFO L163 LiptonReduction]: Checked pairs total: 37 [2021-06-11 06:53:32,854 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:53:32,855 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-06-11 06:53:32,858 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 67 flow [2021-06-11 06:53:32,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:32,859 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:53:32,859 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:53:32,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 06:53:32,864 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:53:32,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:53:32,868 INFO L82 PathProgramCache]: Analyzing trace with hash 662522854, now seen corresponding path program 1 times [2021-06-11 06:53:32,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:53:32,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684933016] [2021-06-11 06:53:32,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:53:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:53:32,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:32,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:53:32,950 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:53:32,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:53:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:53:32,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684933016] [2021-06-11 06:53:32,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:53:32,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:53:32,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551590415] [2021-06-11 06:53:32,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:53:32,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:53:32,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:53:32,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:53:32,959 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 118 [2021-06-11 06:53:32,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:32,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:53:32,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 118 [2021-06-11 06:53:32,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:53:32,987 INFO L129 PetriNetUnfolder]: 8/43 cut-off events. [2021-06-11 06:53:32,987 INFO L130 PetriNetUnfolder]: For 10/25 co-relation queries the response was YES. [2021-06-11 06:53:32,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 43 events. 8/43 cut-off events. For 10/25 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 111 event pairs, 2 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 103. Up to 21 conditions per place. [2021-06-11 06:53:32,988 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 5 selfloop transitions, 6 changer transitions 0/21 dead transitions. [2021-06-11 06:53:32,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 98 flow [2021-06-11 06:53:32,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:53:32,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:53:32,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 06:53:32,990 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7860169491525424 [2021-06-11 06:53:32,990 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 06:53:32,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 06:53:32,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:53:32,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 06:53:32,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:32,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:32,995 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:32,995 INFO L185 Difference]: Start difference. First operand has 26 places, 19 transitions, 67 flow. Second operand 4 states and 371 transitions. [2021-06-11 06:53:32,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 98 flow [2021-06-11 06:53:32,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:53:32,996 INFO L241 Difference]: Finished difference. Result has 30 places, 20 transitions, 88 flow [2021-06-11 06:53:32,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2021-06-11 06:53:32,997 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2021-06-11 06:53:32,997 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:53:32,997 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 20 transitions, 88 flow [2021-06-11 06:53:32,998 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 20 transitions, 88 flow [2021-06-11 06:53:32,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 20 transitions, 88 flow [2021-06-11 06:53:33,003 INFO L129 PetriNetUnfolder]: 8/46 cut-off events. [2021-06-11 06:53:33,003 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-06-11 06:53:33,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 46 events. 8/46 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 143 event pairs, 4 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 100. Up to 21 conditions per place. [2021-06-11 06:53:33,004 INFO L151 LiptonReduction]: Number of co-enabled transitions 116 [2021-06-11 06:53:33,007 INFO L163 LiptonReduction]: Checked pairs total: 40 [2021-06-11 06:53:33,007 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:53:33,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 06:53:33,008 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 88 flow [2021-06-11 06:53:33,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,009 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:53:33,009 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:53:33,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 06:53:33,009 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:53:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:53:33,010 INFO L82 PathProgramCache]: Analyzing trace with hash 662523133, now seen corresponding path program 1 times [2021-06-11 06:53:33,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:53:33,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40852427] [2021-06-11 06:53:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:53:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:53:33,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:33,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:53:33,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:33,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:53:33,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:53:33,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40852427] [2021-06-11 06:53:33,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:53:33,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:53:33,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21620178] [2021-06-11 06:53:33,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:53:33,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:53:33,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:53:33,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:53:33,078 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118 [2021-06-11 06:53:33,078 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,078 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:53:33,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118 [2021-06-11 06:53:33,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:53:33,112 INFO L129 PetriNetUnfolder]: 15/73 cut-off events. [2021-06-11 06:53:33,112 INFO L130 PetriNetUnfolder]: For 63/73 co-relation queries the response was YES. [2021-06-11 06:53:33,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 73 events. 15/73 cut-off events. For 63/73 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 289 event pairs, 3 based on Foata normal form. 11/82 useless extension candidates. Maximal degree in co-relation 188. Up to 33 conditions per place. [2021-06-11 06:53:33,113 INFO L132 encePairwiseOnDemand]: 114/118 looper letters, 5 selfloop transitions, 4 changer transitions 4/26 dead transitions. [2021-06-11 06:53:33,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 150 flow [2021-06-11 06:53:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:53:33,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:53:33,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2021-06-11 06:53:33,116 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7923728813559322 [2021-06-11 06:53:33,116 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2021-06-11 06:53:33,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2021-06-11 06:53:33,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:53:33,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2021-06-11 06:53:33,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,118 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,118 INFO L185 Difference]: Start difference. First operand has 30 places, 20 transitions, 88 flow. Second operand 4 states and 374 transitions. [2021-06-11 06:53:33,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 150 flow [2021-06-11 06:53:33,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 135 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:53:33,121 INFO L241 Difference]: Finished difference. Result has 33 places, 20 transitions, 96 flow [2021-06-11 06:53:33,121 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2021-06-11 06:53:33,121 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2021-06-11 06:53:33,121 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:53:33,121 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 20 transitions, 96 flow [2021-06-11 06:53:33,122 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 20 transitions, 96 flow [2021-06-11 06:53:33,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 20 transitions, 96 flow [2021-06-11 06:53:33,130 INFO L129 PetriNetUnfolder]: 8/44 cut-off events. [2021-06-11 06:53:33,130 INFO L130 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2021-06-11 06:53:33,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 44 events. 8/44 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 115 event pairs, 4 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 109. Up to 21 conditions per place. [2021-06-11 06:53:33,133 INFO L151 LiptonReduction]: Number of co-enabled transitions 100 [2021-06-11 06:53:33,135 INFO L163 LiptonReduction]: Checked pairs total: 12 [2021-06-11 06:53:33,135 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:53:33,135 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 06:53:33,139 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 96 flow [2021-06-11 06:53:33,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,140 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:53:33,140 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:53:33,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 06:53:33,140 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:53:33,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:53:33,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1366205547, now seen corresponding path program 1 times [2021-06-11 06:53:33,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:53:33,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373054597] [2021-06-11 06:53:33,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:53:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:53:33,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:33,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:53:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:53:33,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373054597] [2021-06-11 06:53:33,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:53:33,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:53:33,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986680854] [2021-06-11 06:53:33,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:53:33,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:53:33,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:53:33,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:53:33,174 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 118 [2021-06-11 06:53:33,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:53:33,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 118 [2021-06-11 06:53:33,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:53:33,182 INFO L129 PetriNetUnfolder]: 6/40 cut-off events. [2021-06-11 06:53:33,182 INFO L130 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2021-06-11 06:53:33,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 40 events. 6/40 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 96 event pairs, 3 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 108. Up to 18 conditions per place. [2021-06-11 06:53:33,183 INFO L132 encePairwiseOnDemand]: 114/118 looper letters, 3 selfloop transitions, 4 changer transitions 0/21 dead transitions. [2021-06-11 06:53:33,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 21 transitions, 116 flow [2021-06-11 06:53:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:53:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:53:33,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2021-06-11 06:53:33,184 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8418079096045198 [2021-06-11 06:53:33,184 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2021-06-11 06:53:33,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2021-06-11 06:53:33,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:53:33,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2021-06-11 06:53:33,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,186 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,186 INFO L185 Difference]: Start difference. First operand has 33 places, 20 transitions, 96 flow. Second operand 3 states and 298 transitions. [2021-06-11 06:53:33,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 21 transitions, 116 flow [2021-06-11 06:53:33,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 21 transitions, 102 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-06-11 06:53:33,188 INFO L241 Difference]: Finished difference. Result has 32 places, 21 transitions, 104 flow [2021-06-11 06:53:33,188 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=32, PETRI_TRANSITIONS=21} [2021-06-11 06:53:33,188 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2021-06-11 06:53:33,188 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:53:33,188 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 21 transitions, 104 flow [2021-06-11 06:53:33,189 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 21 transitions, 104 flow [2021-06-11 06:53:33,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 21 transitions, 104 flow [2021-06-11 06:53:33,192 INFO L129 PetriNetUnfolder]: 6/39 cut-off events. [2021-06-11 06:53:33,192 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-06-11 06:53:33,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 39 events. 6/39 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 93 event pairs, 3 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 94. Up to 18 conditions per place. [2021-06-11 06:53:33,193 INFO L151 LiptonReduction]: Number of co-enabled transitions 104 [2021-06-11 06:53:33,194 INFO L163 LiptonReduction]: Checked pairs total: 28 [2021-06-11 06:53:33,194 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:53:33,194 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 06:53:33,195 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 21 transitions, 104 flow [2021-06-11 06:53:33,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,195 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:53:33,195 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:53:33,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 06:53:33,196 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:53:33,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:53:33,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1029284130, now seen corresponding path program 1 times [2021-06-11 06:53:33,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:53:33,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868763146] [2021-06-11 06:53:33,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:53:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:53:33,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:33,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:53:33,232 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-06-11 06:53:33,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 06:53:33,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:53:33,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868763146] [2021-06-11 06:53:33,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:53:33,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:53:33,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104621603] [2021-06-11 06:53:33,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:53:33,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:53:33,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:53:33,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:53:33,240 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 118 [2021-06-11 06:53:33,240 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 21 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 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) [2021-06-11 06:53:33,240 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:53:33,240 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 118 [2021-06-11 06:53:33,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:53:33,312 INFO L129 PetriNetUnfolder]: 69/160 cut-off events. [2021-06-11 06:53:33,312 INFO L130 PetriNetUnfolder]: For 211/253 co-relation queries the response was YES. [2021-06-11 06:53:33,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 160 events. 69/160 cut-off events. For 211/253 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 719 event pairs, 27 based on Foata normal form. 23/175 useless extension candidates. Maximal degree in co-relation 384. Up to 102 conditions per place. [2021-06-11 06:53:33,314 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 8 selfloop transitions, 8 changer transitions 0/31 dead transitions. [2021-06-11 06:53:33,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 31 transitions, 156 flow [2021-06-11 06:53:33,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:53:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:53:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2021-06-11 06:53:33,315 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7677966101694915 [2021-06-11 06:53:33,316 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2021-06-11 06:53:33,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2021-06-11 06:53:33,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:53:33,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2021-06-11 06:53:33,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,318 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,319 INFO L185 Difference]: Start difference. First operand has 32 places, 21 transitions, 104 flow. Second operand 5 states and 453 transitions. [2021-06-11 06:53:33,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 31 transitions, 156 flow [2021-06-11 06:53:33,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 31 transitions, 146 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-11 06:53:33,323 INFO L241 Difference]: Finished difference. Result has 37 places, 28 transitions, 154 flow [2021-06-11 06:53:33,323 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=154, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2021-06-11 06:53:33,324 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2021-06-11 06:53:33,324 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:53:33,324 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 28 transitions, 154 flow [2021-06-11 06:53:33,324 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 28 transitions, 154 flow [2021-06-11 06:53:33,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 28 transitions, 154 flow [2021-06-11 06:53:33,339 INFO L129 PetriNetUnfolder]: 69/160 cut-off events. [2021-06-11 06:53:33,339 INFO L130 PetriNetUnfolder]: For 255/288 co-relation queries the response was YES. [2021-06-11 06:53:33,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 160 events. 69/160 cut-off events. For 255/288 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 768 event pairs, 27 based on Foata normal form. 1/151 useless extension candidates. Maximal degree in co-relation 491. Up to 111 conditions per place. [2021-06-11 06:53:33,342 INFO L151 LiptonReduction]: Number of co-enabled transitions 164 [2021-06-11 06:53:33,345 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:53:33,345 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:53:33,345 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-06-11 06:53:33,346 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 154 flow [2021-06-11 06:53:33,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 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) [2021-06-11 06:53:33,346 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:53:33,346 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:53:33,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 06:53:33,347 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:53:33,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:53:33,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1706247387, now seen corresponding path program 1 times [2021-06-11 06:53:33,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:53:33,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607456232] [2021-06-11 06:53:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:53:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:53:33,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:33,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:53:33,410 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 06:53:33,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 06:53:33,418 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 06:53:33,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:53:33,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:53:33,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607456232] [2021-06-11 06:53:33,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:53:33,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:53:33,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495861384] [2021-06-11 06:53:33,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:53:33,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:53:33,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:53:33,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:53:33,428 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 118 [2021-06-11 06:53:33,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 154 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:53:33,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 118 [2021-06-11 06:53:33,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:53:33,499 INFO L129 PetriNetUnfolder]: 49/136 cut-off events. [2021-06-11 06:53:33,499 INFO L130 PetriNetUnfolder]: For 485/673 co-relation queries the response was YES. [2021-06-11 06:53:33,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 136 events. 49/136 cut-off events. For 485/673 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 657 event pairs, 4 based on Foata normal form. 70/198 useless extension candidates. Maximal degree in co-relation 510. Up to 102 conditions per place. [2021-06-11 06:53:33,501 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 5 selfloop transitions, 15 changer transitions 3/38 dead transitions. [2021-06-11 06:53:33,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 258 flow [2021-06-11 06:53:33,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 06:53:33,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 06:53:33,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 634 transitions. [2021-06-11 06:53:33,503 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7675544794188862 [2021-06-11 06:53:33,503 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 634 transitions. [2021-06-11 06:53:33,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 634 transitions. [2021-06-11 06:53:33,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:53:33,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 634 transitions. [2021-06-11 06:53:33,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 90.57142857142857) internal successors, (634), 7 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,507 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,507 INFO L185 Difference]: Start difference. First operand has 37 places, 28 transitions, 154 flow. Second operand 7 states and 634 transitions. [2021-06-11 06:53:33,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 258 flow [2021-06-11 06:53:33,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 38 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:53:33,511 INFO L241 Difference]: Finished difference. Result has 45 places, 35 transitions, 249 flow [2021-06-11 06:53:33,511 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=249, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2021-06-11 06:53:33,512 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 19 predicate places. [2021-06-11 06:53:33,512 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:53:33,512 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 35 transitions, 249 flow [2021-06-11 06:53:33,512 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 35 transitions, 249 flow [2021-06-11 06:53:33,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 35 transitions, 249 flow [2021-06-11 06:53:33,523 INFO L129 PetriNetUnfolder]: 41/124 cut-off events. [2021-06-11 06:53:33,524 INFO L130 PetriNetUnfolder]: For 459/523 co-relation queries the response was YES. [2021-06-11 06:53:33,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 535 conditions, 124 events. 41/124 cut-off events. For 459/523 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 623 event pairs, 4 based on Foata normal form. 5/123 useless extension candidates. Maximal degree in co-relation 516. Up to 90 conditions per place. [2021-06-11 06:53:33,525 INFO L151 LiptonReduction]: Number of co-enabled transitions 194 [2021-06-11 06:53:33,528 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:53:33,528 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:53:33,528 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 06:53:33,529 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 249 flow [2021-06-11 06:53:33,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,529 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:53:33,529 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:53:33,529 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 06:53:33,529 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:53:33,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:53:33,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1231461990, now seen corresponding path program 1 times [2021-06-11 06:53:33,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:53:33,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148602893] [2021-06-11 06:53:33,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:53:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:53:33,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:33,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:53:33,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:33,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:53:33,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:33,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:53:33,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:53:33,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148602893] [2021-06-11 06:53:33,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:53:33,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:53:33,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514307195] [2021-06-11 06:53:33,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:53:33,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:53:33,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:53:33,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:53:33,575 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118 [2021-06-11 06:53:33,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:53:33,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118 [2021-06-11 06:53:33,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:53:33,607 INFO L129 PetriNetUnfolder]: 51/159 cut-off events. [2021-06-11 06:53:33,607 INFO L130 PetriNetUnfolder]: For 660/811 co-relation queries the response was YES. [2021-06-11 06:53:33,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 681 conditions, 159 events. 51/159 cut-off events. For 660/811 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 865 event pairs, 3 based on Foata normal form. 14/159 useless extension candidates. Maximal degree in co-relation 660. Up to 122 conditions per place. [2021-06-11 06:53:33,608 INFO L132 encePairwiseOnDemand]: 115/118 looper letters, 5 selfloop transitions, 2 changer transitions 12/37 dead transitions. [2021-06-11 06:53:33,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 37 transitions, 277 flow [2021-06-11 06:53:33,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:53:33,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:53:33,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2021-06-11 06:53:33,610 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.788135593220339 [2021-06-11 06:53:33,610 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 372 transitions. [2021-06-11 06:53:33,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 372 transitions. [2021-06-11 06:53:33,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:53:33,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 372 transitions. [2021-06-11 06:53:33,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,612 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,612 INFO L185 Difference]: Start difference. First operand has 45 places, 35 transitions, 249 flow. Second operand 4 states and 372 transitions. [2021-06-11 06:53:33,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 37 transitions, 277 flow [2021-06-11 06:53:33,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 242 flow, removed 13 selfloop flow, removed 2 redundant places. [2021-06-11 06:53:33,616 INFO L241 Difference]: Finished difference. Result has 48 places, 25 transitions, 156 flow [2021-06-11 06:53:33,616 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=48, PETRI_TRANSITIONS=25} [2021-06-11 06:53:33,616 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 22 predicate places. [2021-06-11 06:53:33,616 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:53:33,616 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 25 transitions, 156 flow [2021-06-11 06:53:33,616 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 25 transitions, 156 flow [2021-06-11 06:53:33,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 25 transitions, 156 flow [2021-06-11 06:53:33,624 INFO L129 PetriNetUnfolder]: 21/86 cut-off events. [2021-06-11 06:53:33,624 INFO L130 PetriNetUnfolder]: For 143/151 co-relation queries the response was YES. [2021-06-11 06:53:33,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 86 events. 21/86 cut-off events. For 143/151 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 365 event pairs, 4 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 282. Up to 39 conditions per place. [2021-06-11 06:53:33,625 INFO L151 LiptonReduction]: Number of co-enabled transitions 94 [2021-06-11 06:53:33,626 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:53:33,626 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:53:33,626 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 06:53:33,627 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 25 transitions, 156 flow [2021-06-11 06:53:33,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,627 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:53:33,627 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:53:33,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 06:53:33,628 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:53:33,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:53:33,628 INFO L82 PathProgramCache]: Analyzing trace with hash 47863150, now seen corresponding path program 2 times [2021-06-11 06:53:33,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:53:33,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173058166] [2021-06-11 06:53:33,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:53:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:53:33,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:33,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:53:33,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:53:33,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:53:33,659 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 06:53:33,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 06:53:33,664 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 06:53:33,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:53:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:53:33,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173058166] [2021-06-11 06:53:33,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:53:33,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 06:53:33,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936495178] [2021-06-11 06:53:33,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 06:53:33,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:53:33,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 06:53:33,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 06:53:33,674 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 118 [2021-06-11 06:53:33,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 25 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:53:33,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 118 [2021-06-11 06:53:33,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:53:33,715 INFO L129 PetriNetUnfolder]: 18/80 cut-off events. [2021-06-11 06:53:33,715 INFO L130 PetriNetUnfolder]: For 174/225 co-relation queries the response was YES. [2021-06-11 06:53:33,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 80 events. 18/80 cut-off events. For 174/225 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 332 event pairs, 1 based on Foata normal form. 28/104 useless extension candidates. Maximal degree in co-relation 314. Up to 37 conditions per place. [2021-06-11 06:53:33,716 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2021-06-11 06:53:33,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 27 transitions, 186 flow [2021-06-11 06:53:33,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 06:53:33,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 06:53:33,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 623 transitions. [2021-06-11 06:53:33,718 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7542372881355932 [2021-06-11 06:53:33,718 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 623 transitions. [2021-06-11 06:53:33,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 623 transitions. [2021-06-11 06:53:33,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:53:33,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 623 transitions. [2021-06-11 06:53:33,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,721 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,721 INFO L185 Difference]: Start difference. First operand has 44 places, 25 transitions, 156 flow. Second operand 7 states and 623 transitions. [2021-06-11 06:53:33,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 27 transitions, 186 flow [2021-06-11 06:53:33,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 27 transitions, 173 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-06-11 06:53:33,722 INFO L241 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2021-06-11 06:53:33,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2021-06-11 06:53:33,723 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 19 predicate places. [2021-06-11 06:53:33,723 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:53:33,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 0 transitions, 0 flow [2021-06-11 06:53:33,723 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 0 transitions, 0 flow [2021-06-11 06:53:33,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 06:53:33,723 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 06:53:33,724 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:53:33,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 06:53:33,724 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 06:53:33,724 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:53:33,724 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:53:33,724 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 06:53:33,725 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 06:53:33,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:53:33,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 06:53:33,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 06:53:33 BasicIcfg [2021-06-11 06:53:33,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 06:53:33,729 INFO L168 Benchmark]: Toolchain (without parser) took 5010.26 ms. Allocated memory was 373.3 MB in the beginning and 480.2 MB in the end (delta: 107.0 MB). Free memory was 335.4 MB in the beginning and 361.4 MB in the end (delta: -26.1 MB). Peak memory consumption was 81.6 MB. Max. memory is 16.0 GB. [2021-06-11 06:53:33,729 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 373.3 MB. Free memory is still 353.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:53:33,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.90 ms. Allocated memory is still 373.3 MB. Free memory was 335.2 MB in the beginning and 335.2 MB in the end (delta: -20.6 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-06-11 06:53:33,730 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.84 ms. Allocated memory is still 373.3 MB. Free memory was 335.2 MB in the beginning and 334.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:53:33,730 INFO L168 Benchmark]: Boogie Preprocessor took 17.68 ms. Allocated memory is still 373.3 MB. Free memory was 334.1 MB in the beginning and 332.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:53:33,730 INFO L168 Benchmark]: RCFGBuilder took 333.19 ms. Allocated memory is still 373.3 MB. Free memory was 332.0 MB in the beginning and 309.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:53:33,730 INFO L168 Benchmark]: TraceAbstraction took 4151.74 ms. Allocated memory was 373.3 MB in the beginning and 480.2 MB in the end (delta: 107.0 MB). Free memory was 307.9 MB in the beginning and 361.4 MB in the end (delta: -53.5 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.0 GB. [2021-06-11 06:53:33,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 373.3 MB. Free memory is still 353.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 471.90 ms. Allocated memory is still 373.3 MB. Free memory was 335.2 MB in the beginning and 335.2 MB in the end (delta: -20.6 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 28.84 ms. Allocated memory is still 373.3 MB. Free memory was 335.2 MB in the beginning and 334.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.68 ms. Allocated memory is still 373.3 MB. Free memory was 334.1 MB in the beginning and 332.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 333.19 ms. Allocated memory is still 373.3 MB. Free memory was 332.0 MB in the beginning and 309.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4151.74 ms. Allocated memory was 373.3 MB in the beginning and 480.2 MB in the end (delta: 107.0 MB). Free memory was 307.9 MB in the beginning and 361.4 MB in the end (delta: -53.5 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2681.3ms, 67 PlacesBefore, 26 PlacesAfterwards, 58 TransitionsBefore, 16 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 45 TotalNumberOfCompositions, 1446 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 865, positive: 788, positive conditional: 0, positive unconditional: 788, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 558, positive: 527, positive conditional: 0, positive unconditional: 527, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 558, positive: 527, positive conditional: 0, positive unconditional: 527, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 558, positive: 520, positive conditional: 0, positive unconditional: 520, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 149, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 117, negative conditional: 0, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 865, positive: 261, positive conditional: 0, positive unconditional: 261, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 558, unknown conditional: 0, unknown unconditional: 558] , Statistics on independence cache: Total cache size (in pairs): 934, Positive cache size: 903, Positive conditional cache size: 0, Positive unconditional cache size: 903, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.1ms, 26 PlacesBefore, 26 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 110 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 37 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, 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: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 934, Positive cache size: 903, Positive conditional cache size: 0, Positive unconditional cache size: 903, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9ms, 30 PlacesBefore, 30 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 40 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 934, Positive cache size: 903, Positive conditional cache size: 0, Positive unconditional cache size: 903, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.4ms, 33 PlacesBefore, 33 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 100 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 934, Positive cache size: 903, Positive conditional cache size: 0, Positive unconditional cache size: 903, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7ms, 32 PlacesBefore, 32 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 934, Positive cache size: 903, Positive conditional cache size: 0, Positive unconditional cache size: 903, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.7ms, 37 PlacesBefore, 37 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 164 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): 934, Positive cache size: 903, Positive conditional cache size: 0, Positive unconditional cache size: 903, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.0ms, 45 PlacesBefore, 45 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 194 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): 934, Positive cache size: 903, Positive conditional cache size: 0, Positive unconditional cache size: 903, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.8ms, 48 PlacesBefore, 44 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 94 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): 934, Positive cache size: 903, Positive conditional cache size: 0, Positive unconditional cache size: 903, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 45 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): 934, Positive cache size: 903, Positive conditional cache size: 0, Positive unconditional cache size: 903, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - 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, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4044.5ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 453.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2788.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 31 SDtfs, 19 SDslu, 14 SDs, 0 SdLazy, 111 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 92.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 102.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=249occurred in iteration=6, InterpolantAutomatonStates: 37, 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: 19.3ms SsaConstructionTime, 160.0ms SatisfiabilityAnalysisTime, 356.1ms InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 331 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...