/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 20:22:04,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 20:22:04,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 20:22:04,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 20:22:04,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 20:22:04,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 20:22:04,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 20:22:04,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 20:22:04,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 20:22:04,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 20:22:04,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 20:22:04,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 20:22:04,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 20:22:04,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 20:22:04,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 20:22:04,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 20:22:04,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 20:22:04,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 20:22:04,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 20:22:04,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 20:22:04,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 20:22:04,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 20:22:04,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 20:22:04,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 20:22:04,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 20:22:04,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 20:22:04,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 20:22:04,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 20:22:04,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 20:22:04,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-03-11 20:22:04,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 20:22:04,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 20:22:04,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 20:22:04,427 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-SemanticLbe.epf [2021-03-11 20:22:04,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 20:22:04,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 20:22:04,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 20:22:04,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 20:22:04,461 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 20:22:04,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 20:22:04,461 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 20:22:04,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 20:22:04,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 20:22:04,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 20:22:04,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 20:22:04,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 20:22:04,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 20:22:04,462 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 20:22:04,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 20:22:04,462 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 20:22:04,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 20:22:04,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 20:22:04,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 20:22:04,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 20:22:04,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 20:22:04,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 20:22:04,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 20:22:04,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 20:22:04,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 20:22:04,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 20:22:04,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 20:22:04,464 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 20:22:04,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 20:22:04,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 20:22:04,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 20:22:04,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 20:22:04,732 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 20:22:04,733 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 20:22:04,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2021-03-11 20:22:04,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/983679558/3f73cc549912457a92a94509c231c6ef/FLAG9d4634fe7 [2021-03-11 20:22:05,180 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 20:22:05,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2021-03-11 20:22:05,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/983679558/3f73cc549912457a92a94509c231c6ef/FLAG9d4634fe7 [2021-03-11 20:22:05,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/983679558/3f73cc549912457a92a94509c231c6ef [2021-03-11 20:22:05,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 20:22:05,562 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 20:22:05,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 20:22:05,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 20:22:05,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 20:22:05,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:22:05" (1/1) ... [2021-03-11 20:22:05,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2938672e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05, skipping insertion in model container [2021-03-11 20:22:05,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:22:05" (1/1) ... [2021-03-11 20:22:05,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 20:22:05,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 20:22:05,686 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/safe009_pso.opt.i[949,962] [2021-03-11 20:22:05,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:22:05,807 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 20:22:05,815 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/safe009_pso.opt.i[949,962] [2021-03-11 20:22:05,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:22:05,889 INFO L208 MainTranslator]: Completed translation [2021-03-11 20:22:05,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05 WrapperNode [2021-03-11 20:22:05,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 20:22:05,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 20:22:05,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 20:22:05,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 20:22:05,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05" (1/1) ... [2021-03-11 20:22:05,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05" (1/1) ... [2021-03-11 20:22:05,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 20:22:05,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 20:22:05,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 20:22:05,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 20:22:05,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05" (1/1) ... [2021-03-11 20:22:05,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05" (1/1) ... [2021-03-11 20:22:05,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05" (1/1) ... [2021-03-11 20:22:05,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05" (1/1) ... [2021-03-11 20:22:05,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05" (1/1) ... [2021-03-11 20:22:05,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05" (1/1) ... [2021-03-11 20:22:05,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05" (1/1) ... [2021-03-11 20:22:05,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 20:22:05,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 20:22:05,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 20:22:05,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 20:22:05,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 20:22:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 20:22:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 20:22:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 20:22:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 20:22:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 20:22:05,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 20:22:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 20:22:05,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 20:22:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 20:22:05,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 20:22:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 20:22:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 20:22:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 20:22:05,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 20:22:05,969 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 20:22:06,249 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 20:22:06,249 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 20:22:06,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:22:06 BoogieIcfgContainer [2021-03-11 20:22:06,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 20:22:06,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 20:22:06,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 20:22:06,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 20:22:06,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 08:22:05" (1/3) ... [2021-03-11 20:22:06,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3697148f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:22:06, skipping insertion in model container [2021-03-11 20:22:06,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:22:05" (2/3) ... [2021-03-11 20:22:06,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3697148f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:22:06, skipping insertion in model container [2021-03-11 20:22:06,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:22:06" (3/3) ... [2021-03-11 20:22:06,256 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt.i [2021-03-11 20:22:06,262 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 20:22:06,265 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 20:22:06,266 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 20:22:06,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,293 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,293 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,297 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,297 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,300 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,302 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,302 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,305 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,309 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,309 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:22:06,311 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 20:22:06,324 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 20:22:06,344 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 20:22:06,344 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 20:22:06,344 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 20:22:06,344 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 20:22:06,344 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 20:22:06,344 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 20:22:06,345 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 20:22:06,345 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 20:22:06,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-03-11 20:22:06,375 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-03-11 20:22:06,375 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:22:06,378 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 52 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. [2021-03-11 20:22:06,378 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-03-11 20:22:06,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-03-11 20:22:06,383 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 20:22:06,397 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-11 20:22:06,398 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-11 20:22:06,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-03-11 20:22:06,408 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-03-11 20:22:06,408 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:22:06,408 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 40 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. [2021-03-11 20:22:06,409 INFO L116 LiptonReduction]: Number of co-enabled transitions 812 [2021-03-11 20:22:07,923 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-11 20:22:08,099 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-11 20:22:08,152 INFO L131 LiptonReduction]: Checked pairs total: 1522 [2021-03-11 20:22:08,153 INFO L133 LiptonReduction]: Total number of compositions: 46 [2021-03-11 20:22:08,154 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1773 [2021-03-11 20:22:08,171 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-11 20:22:08,171 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:22:08,172 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:22:08,172 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:22:08,173 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:22:08,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:22:08,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1678235149, now seen corresponding path program 1 times [2021-03-11 20:22:08,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:22:08,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163184319] [2021-03-11 20:22:08,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:22:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:22:08,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:22:08,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163184319] [2021-03-11 20:22:08,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:22:08,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 20:22:08,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102637878] [2021-03-11 20:22:08,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:22:08,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:22:08,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:22:08,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:22:08,318 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 119 [2021-03-11 20:22:08,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:22:08,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 119 [2021-03-11 20:22:08,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:22:08,328 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-11 20:22:08,329 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:22:08,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 3/19 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-11 20:22:08,329 INFO L132 encePairwiseOnDemand]: 115/119 looper letters, 1 selfloop transitions, 2 changer transitions 0/16 dead transitions. [2021-03-11 20:22:08,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 47 flow [2021-03-11 20:22:08,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:22:08,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:22:08,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2021-03-11 20:22:08,337 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-03-11 20:22:08,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2021-03-11 20:22:08,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2021-03-11 20:22:08,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:22:08,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2021-03-11 20:22:08,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,345 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,346 INFO L185 Difference]: Start difference. First operand has 26 places, 17 transitions, 43 flow. Second operand 3 states and 306 transitions. [2021-03-11 20:22:08,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 47 flow [2021-03-11 20:22:08,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 16 transitions, 44 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-11 20:22:08,348 INFO L241 Difference]: Finished difference. Result has 26 places, 16 transitions, 46 flow [2021-03-11 20:22:08,350 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, 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=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2021-03-11 20:22:08,350 INFO L335 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2021-03-11 20:22:08,350 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 46 flow [2021-03-11 20:22:08,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,351 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:22:08,351 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:22:08,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 20:22:08,351 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:22:08,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:22:08,351 INFO L82 PathProgramCache]: Analyzing trace with hash 485681783, now seen corresponding path program 1 times [2021-03-11 20:22:08,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:22:08,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551220853] [2021-03-11 20:22:08,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:22:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:22:08,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:22:08,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551220853] [2021-03-11 20:22:08,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:22:08,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:22:08,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412017622] [2021-03-11 20:22:08,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:22:08,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:22:08,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:22:08,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:22:08,429 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 119 [2021-03-11 20:22:08,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 46 flow. Second operand has 4 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) [2021-03-11 20:22:08,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:22:08,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 119 [2021-03-11 20:22:08,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:22:08,459 INFO L129 PetriNetUnfolder]: 6/41 cut-off events. [2021-03-11 20:22:08,459 INFO L130 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2021-03-11 20:22:08,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 41 events. 6/41 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 125 event pairs, 0 based on Foata normal form. 4/43 useless extension candidates. Maximal degree in co-relation 73. Up to 11 conditions per place. [2021-03-11 20:22:08,460 INFO L132 encePairwiseOnDemand]: 114/119 looper letters, 5 selfloop transitions, 4 changer transitions 1/21 dead transitions. [2021-03-11 20:22:08,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 79 flow [2021-03-11 20:22:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 20:22:08,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 20:22:08,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 380 transitions. [2021-03-11 20:22:08,465 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7983193277310925 [2021-03-11 20:22:08,465 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 380 transitions. [2021-03-11 20:22:08,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 380 transitions. [2021-03-11 20:22:08,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:22:08,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 380 transitions. [2021-03-11 20:22:08,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,469 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,470 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 46 flow. Second operand 4 states and 380 transitions. [2021-03-11 20:22:08,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 79 flow [2021-03-11 20:22:08,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 21 transitions, 73 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 20:22:08,470 INFO L241 Difference]: Finished difference. Result has 29 places, 18 transitions, 68 flow [2021-03-11 20:22:08,470 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=68, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2021-03-11 20:22:08,471 INFO L335 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2021-03-11 20:22:08,471 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 68 flow [2021-03-11 20:22:08,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 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) [2021-03-11 20:22:08,471 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:22:08,471 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:22:08,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 20:22:08,472 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:22:08,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:22:08,472 INFO L82 PathProgramCache]: Analyzing trace with hash -2123741883, now seen corresponding path program 1 times [2021-03-11 20:22:08,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:22:08,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629010493] [2021-03-11 20:22:08,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:22:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:22:08,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:22:08,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629010493] [2021-03-11 20:22:08,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:22:08,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 20:22:08,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721983881] [2021-03-11 20:22:08,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:22:08,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:22:08,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:22:08,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:22:08,518 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 119 [2021-03-11 20:22:08,519 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:22:08,519 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 119 [2021-03-11 20:22:08,519 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:22:08,525 INFO L129 PetriNetUnfolder]: 3/27 cut-off events. [2021-03-11 20:22:08,525 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-03-11 20:22:08,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 27 events. 3/27 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 57 event pairs, 1 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 56. Up to 10 conditions per place. [2021-03-11 20:22:08,525 INFO L132 encePairwiseOnDemand]: 116/119 looper letters, 1 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2021-03-11 20:22:08,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 18 transitions, 74 flow [2021-03-11 20:22:08,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:22:08,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:22:08,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-03-11 20:22:08,529 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8515406162464986 [2021-03-11 20:22:08,529 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-03-11 20:22:08,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-03-11 20:22:08,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:22:08,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-03-11 20:22:08,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,531 INFO L185 Difference]: Start difference. First operand has 29 places, 18 transitions, 68 flow. Second operand 3 states and 304 transitions. [2021-03-11 20:22:08,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 18 transitions, 74 flow [2021-03-11 20:22:08,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 65 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-11 20:22:08,532 INFO L241 Difference]: Finished difference. Result has 29 places, 18 transitions, 67 flow [2021-03-11 20:22:08,532 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2021-03-11 20:22:08,532 INFO L335 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2021-03-11 20:22:08,532 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 67 flow [2021-03-11 20:22:08,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,532 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:22:08,532 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:22:08,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 20:22:08,532 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:22:08,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:22:08,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1362081963, now seen corresponding path program 1 times [2021-03-11 20:22:08,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:22:08,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889738801] [2021-03-11 20:22:08,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:22:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:22:08,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:22:08,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,600 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-11 20:22:08,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:22:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:22:08,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889738801] [2021-03-11 20:22:08,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:22:08,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:22:08,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620882897] [2021-03-11 20:22:08,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:22:08,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:22:08,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:22:08,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:22:08,610 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 119 [2021-03-11 20:22:08,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:22:08,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 119 [2021-03-11 20:22:08,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:22:08,639 INFO L129 PetriNetUnfolder]: 4/40 cut-off events. [2021-03-11 20:22:08,639 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-03-11 20:22:08,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 40 events. 4/40 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 119 event pairs, 0 based on Foata normal form. 2/42 useless extension candidates. Maximal degree in co-relation 88. Up to 13 conditions per place. [2021-03-11 20:22:08,640 INFO L132 encePairwiseOnDemand]: 114/119 looper letters, 5 selfloop transitions, 6 changer transitions 0/21 dead transitions. [2021-03-11 20:22:08,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 21 transitions, 102 flow [2021-03-11 20:22:08,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 20:22:08,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 20:22:08,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 363 transitions. [2021-03-11 20:22:08,643 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7626050420168067 [2021-03-11 20:22:08,643 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 363 transitions. [2021-03-11 20:22:08,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 363 transitions. [2021-03-11 20:22:08,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:22:08,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 363 transitions. [2021-03-11 20:22:08,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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) [2021-03-11 20:22:08,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,648 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,648 INFO L185 Difference]: Start difference. First operand has 29 places, 18 transitions, 67 flow. Second operand 4 states and 363 transitions. [2021-03-11 20:22:08,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 21 transitions, 102 flow [2021-03-11 20:22:08,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 21 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 20:22:08,649 INFO L241 Difference]: Finished difference. Result has 32 places, 20 transitions, 95 flow [2021-03-11 20:22:08,649 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2021-03-11 20:22:08,649 INFO L335 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2021-03-11 20:22:08,649 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 95 flow [2021-03-11 20:22:08,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,650 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:22:08,650 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:22:08,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 20:22:08,650 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:22:08,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:22:08,650 INFO L82 PathProgramCache]: Analyzing trace with hash -128938295, now seen corresponding path program 1 times [2021-03-11 20:22:08,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:22:08,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226965882] [2021-03-11 20:22:08,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:22:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:22:08,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:22:08,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226965882] [2021-03-11 20:22:08,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:22:08,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:22:08,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013849650] [2021-03-11 20:22:08,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:22:08,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:22:08,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:22:08,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:22:08,695 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 119 [2021-03-11 20:22:08,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:22:08,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 119 [2021-03-11 20:22:08,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:22:08,708 INFO L129 PetriNetUnfolder]: 1/34 cut-off events. [2021-03-11 20:22:08,709 INFO L130 PetriNetUnfolder]: For 51/52 co-relation queries the response was YES. [2021-03-11 20:22:08,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 34 events. 1/34 cut-off events. For 51/52 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 80 event pairs, 0 based on Foata normal form. 4/38 useless extension candidates. Maximal degree in co-relation 76. Up to 9 conditions per place. [2021-03-11 20:22:08,709 INFO L132 encePairwiseOnDemand]: 115/119 looper letters, 1 selfloop transitions, 3 changer transitions 5/21 dead transitions. [2021-03-11 20:22:08,709 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 21 transitions, 112 flow [2021-03-11 20:22:08,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 20:22:08,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 20:22:08,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 383 transitions. [2021-03-11 20:22:08,710 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8046218487394958 [2021-03-11 20:22:08,710 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 383 transitions. [2021-03-11 20:22:08,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 383 transitions. [2021-03-11 20:22:08,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:22:08,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 383 transitions. [2021-03-11 20:22:08,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,712 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,712 INFO L185 Difference]: Start difference. First operand has 32 places, 20 transitions, 95 flow. Second operand 4 states and 383 transitions. [2021-03-11 20:22:08,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 21 transitions, 112 flow [2021-03-11 20:22:08,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 21 transitions, 104 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-11 20:22:08,713 INFO L241 Difference]: Finished difference. Result has 36 places, 16 transitions, 78 flow [2021-03-11 20:22:08,714 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=36, PETRI_TRANSITIONS=16} [2021-03-11 20:22:08,714 INFO L335 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2021-03-11 20:22:08,714 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 16 transitions, 78 flow [2021-03-11 20:22:08,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,714 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:22:08,714 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:22:08,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 20:22:08,714 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:22:08,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:22:08,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1544719239, now seen corresponding path program 1 times [2021-03-11 20:22:08,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:22:08,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884781958] [2021-03-11 20:22:08,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:22:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:22:08,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:22:08,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884781958] [2021-03-11 20:22:08,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:22:08,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:22:08,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610119217] [2021-03-11 20:22:08,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:22:08,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:22:08,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:22:08,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:22:08,768 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-11 20:22:08,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 16 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:22:08,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-11 20:22:08,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:22:08,802 INFO L129 PetriNetUnfolder]: 23/65 cut-off events. [2021-03-11 20:22:08,802 INFO L130 PetriNetUnfolder]: For 139/150 co-relation queries the response was YES. [2021-03-11 20:22:08,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 65 events. 23/65 cut-off events. For 139/150 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 190 event pairs, 9 based on Foata normal form. 5/64 useless extension candidates. Maximal degree in co-relation 154. Up to 39 conditions per place. [2021-03-11 20:22:08,803 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 5 selfloop transitions, 3 changer transitions 8/26 dead transitions. [2021-03-11 20:22:08,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 26 transitions, 130 flow [2021-03-11 20:22:08,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 20:22:08,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 20:22:08,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 443 transitions. [2021-03-11 20:22:08,804 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7445378151260504 [2021-03-11 20:22:08,804 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 443 transitions. [2021-03-11 20:22:08,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 443 transitions. [2021-03-11 20:22:08,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:22:08,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 443 transitions. [2021-03-11 20:22:08,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,807 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,807 INFO L185 Difference]: Start difference. First operand has 36 places, 16 transitions, 78 flow. Second operand 5 states and 443 transitions. [2021-03-11 20:22:08,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 26 transitions, 130 flow [2021-03-11 20:22:08,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 104 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-03-11 20:22:08,809 INFO L241 Difference]: Finished difference. Result has 34 places, 18 transitions, 83 flow [2021-03-11 20:22:08,809 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=83, PETRI_PLACES=34, PETRI_TRANSITIONS=18} [2021-03-11 20:22:08,809 INFO L335 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2021-03-11 20:22:08,809 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 18 transitions, 83 flow [2021-03-11 20:22:08,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,810 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:22:08,810 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:22:08,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 20:22:08,811 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:22:08,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:22:08,811 INFO L82 PathProgramCache]: Analyzing trace with hash -641661645, now seen corresponding path program 1 times [2021-03-11 20:22:08,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:22:08,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246090203] [2021-03-11 20:22:08,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:22:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:22:08,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:22:08,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246090203] [2021-03-11 20:22:08,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:22:08,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:22:08,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862190193] [2021-03-11 20:22:08,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 20:22:08,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:22:08,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 20:22:08,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 20:22:08,878 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-11 20:22:08,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 18 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:22:08,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-11 20:22:08,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:22:08,916 INFO L129 PetriNetUnfolder]: 9/39 cut-off events. [2021-03-11 20:22:08,917 INFO L130 PetriNetUnfolder]: For 79/119 co-relation queries the response was YES. [2021-03-11 20:22:08,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 39 events. 9/39 cut-off events. For 79/119 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 80 event pairs, 1 based on Foata normal form. 9/46 useless extension candidates. Maximal degree in co-relation 126. Up to 27 conditions per place. [2021-03-11 20:22:08,917 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 3 selfloop transitions, 5 changer transitions 10/28 dead transitions. [2021-03-11 20:22:08,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 28 transitions, 177 flow [2021-03-11 20:22:08,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 20:22:08,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 20:22:08,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 530 transitions. [2021-03-11 20:22:08,918 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.742296918767507 [2021-03-11 20:22:08,918 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 530 transitions. [2021-03-11 20:22:08,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 530 transitions. [2021-03-11 20:22:08,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:22:08,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 530 transitions. [2021-03-11 20:22:08,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.33333333333333) internal successors, (530), 6 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,921 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,921 INFO L185 Difference]: Start difference. First operand has 34 places, 18 transitions, 83 flow. Second operand 6 states and 530 transitions. [2021-03-11 20:22:08,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 28 transitions, 177 flow [2021-03-11 20:22:08,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 28 transitions, 172 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-11 20:22:08,923 INFO L241 Difference]: Finished difference. Result has 38 places, 18 transitions, 102 flow [2021-03-11 20:22:08,923 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=102, PETRI_PLACES=38, PETRI_TRANSITIONS=18} [2021-03-11 20:22:08,924 INFO L335 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2021-03-11 20:22:08,924 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 18 transitions, 102 flow [2021-03-11 20:22:08,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,924 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:22:08,924 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:22:08,924 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 20:22:08,924 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:22:08,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:22:08,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1583320954, now seen corresponding path program 1 times [2021-03-11 20:22:08,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:22:08,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247237508] [2021-03-11 20:22:08,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:22:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:22:08,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:22:08,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:22:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:22:08,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247237508] [2021-03-11 20:22:08,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:22:08,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 20:22:08,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152623619] [2021-03-11 20:22:08,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 20:22:08,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:22:08,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 20:22:08,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-11 20:22:08,989 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-11 20:22:08,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 18 transitions, 102 flow. Second operand has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:08,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:22:08,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-11 20:22:08,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:22:09,013 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-03-11 20:22:09,013 INFO L130 PetriNetUnfolder]: For 54/72 co-relation queries the response was YES. [2021-03-11 20:22:09,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 19 events. 1/19 cut-off events. For 54/72 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 5/24 useless extension candidates. Maximal degree in co-relation 64. Up to 9 conditions per place. [2021-03-11 20:22:09,014 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2021-03-11 20:22:09,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 19 transitions, 122 flow [2021-03-11 20:22:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 20:22:09,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 20:22:09,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 605 transitions. [2021-03-11 20:22:09,015 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7262905162064826 [2021-03-11 20:22:09,016 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 605 transitions. [2021-03-11 20:22:09,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 605 transitions. [2021-03-11 20:22:09,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:22:09,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 605 transitions. [2021-03-11 20:22:09,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.42857142857143) internal successors, (605), 7 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:09,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:09,020 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:09,020 INFO L185 Difference]: Start difference. First operand has 38 places, 18 transitions, 102 flow. Second operand 7 states and 605 transitions. [2021-03-11 20:22:09,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 19 transitions, 122 flow [2021-03-11 20:22:09,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 19 transitions, 93 flow, removed 9 selfloop flow, removed 7 redundant places. [2021-03-11 20:22:09,021 INFO L241 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2021-03-11 20:22:09,021 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2021-03-11 20:22:09,022 INFO L335 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2021-03-11 20:22:09,022 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2021-03-11 20:22:09,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:22:09,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 20:22:09,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 08:22:09 BasicIcfg [2021-03-11 20:22:09,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 20:22:09,026 INFO L168 Benchmark]: Toolchain (without parser) took 3465.36 ms. Allocated memory was 255.9 MB in the beginning and 327.2 MB in the end (delta: 71.3 MB). Free memory was 235.0 MB in the beginning and 184.7 MB in the end (delta: 50.3 MB). Peak memory consumption was 121.0 MB. Max. memory is 16.0 GB. [2021-03-11 20:22:09,026 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 20:22:09,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.94 ms. Allocated memory was 255.9 MB in the beginning and 327.2 MB in the end (delta: 71.3 MB). Free memory was 234.1 MB in the beginning and 289.7 MB in the end (delta: -55.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 20:22:09,030 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.97 ms. Allocated memory is still 327.2 MB. Free memory was 289.2 MB in the beginning and 287.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 20:22:09,030 INFO L168 Benchmark]: Boogie Preprocessor took 12.55 ms. Allocated memory is still 327.2 MB. Free memory was 287.7 MB in the beginning and 286.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:22:09,031 INFO L168 Benchmark]: RCFGBuilder took 325.32 ms. Allocated memory is still 327.2 MB. Free memory was 286.1 MB in the beginning and 264.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-11 20:22:09,031 INFO L168 Benchmark]: TraceAbstraction took 2771.95 ms. Allocated memory is still 327.2 MB. Free memory was 264.0 MB in the beginning and 184.7 MB in the end (delta: 79.3 MB). Peak memory consumption was 80.9 MB. Max. memory is 16.0 GB. [2021-03-11 20:22:09,037 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 324.94 ms. Allocated memory was 255.9 MB in the beginning and 327.2 MB in the end (delta: 71.3 MB). Free memory was 234.1 MB in the beginning and 289.7 MB in the end (delta: -55.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.97 ms. Allocated memory is still 327.2 MB. Free memory was 289.2 MB in the beginning and 287.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.55 ms. Allocated memory is still 327.2 MB. Free memory was 287.7 MB in the beginning and 286.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 325.32 ms. Allocated memory is still 327.2 MB. Free memory was 286.1 MB in the beginning and 264.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2771.95 ms. Allocated memory is still 327.2 MB. Free memory was 264.0 MB in the beginning and 184.7 MB in the end (delta: 79.3 MB). Peak memory consumption was 80.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1754.6ms, 67 PlacesBefore, 26 PlacesAfterwards, 58 TransitionsBefore, 17 TransitionsAfterwards, 812 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 46 TotalNumberOfCompositions, 1522 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1020, positive: 950, positive conditional: 0, positive unconditional: 950, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 628, positive: 598, positive conditional: 0, positive unconditional: 598, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 628, positive: 590, positive conditional: 0, positive unconditional: 590, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 121, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1020, positive: 352, positive conditional: 0, positive unconditional: 352, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 628, unknown conditional: 0, unknown unconditional: 628] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2681.3ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 274.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1814.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 30 SDtfs, 15 SDslu, 13 SDs, 0 SdLazy, 104 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 61.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 57.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=7, InterpolantAutomatonStates: 36, 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: 13.0ms SsaConstructionTime, 139.8ms SatisfiabilityAnalysisTime, 316.0ms InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...