/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/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 20:29:23,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 20:29:23,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 20:29:23,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 20:29:23,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 20:29:23,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 20:29:23,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 20:29:23,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 20:29:23,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 20:29:23,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 20:29:23,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 20:29:23,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 20:29:23,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 20:29:23,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 20:29:23,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 20:29:23,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 20:29:23,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 20:29:23,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 20:29:23,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 20:29:23,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 20:29:23,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 20:29:23,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 20:29:23,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 20:29:23,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 20:29:23,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 20:29:23,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 20:29:23,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 20:29:23,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 20:29:23,163 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 20:29:23,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 20:29:23,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 20:29:23,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 20:29:23,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 20:29:23,187 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 20:29:23,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 20:29:23,187 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 20:29:23,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 20:29:23,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 20:29:23,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 20:29:23,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 20:29:23,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 20:29:23,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 20:29:23,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 20:29:23,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 20:29:23,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 20:29:23,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 20:29:23,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 20:29:23,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 20:29:23,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 20:29:23,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 20:29:23,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 20:29:23,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 20:29:23,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 20:29:23,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 20:29:23,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 20:29:23,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 20:29:23,189 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 20:29:23,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 20:29:23,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 20:29:23,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 20:29:23,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 20:29:23,455 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 20:29:23,455 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 20:29:23,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2021-03-11 20:29:23,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe0b9a93/5ef028ce581a458aa0a12c234444895d/FLAG5ae796e8a [2021-03-11 20:29:23,895 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 20:29:23,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2021-03-11 20:29:23,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe0b9a93/5ef028ce581a458aa0a12c234444895d/FLAG5ae796e8a [2021-03-11 20:29:23,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe0b9a93/5ef028ce581a458aa0a12c234444895d [2021-03-11 20:29:23,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 20:29:23,929 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 20:29:23,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 20:29:23,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 20:29:23,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 20:29:23,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:29:23" (1/1) ... [2021-03-11 20:29:23,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aae2ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:23, skipping insertion in model container [2021-03-11 20:29:23,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:29:23" (1/1) ... [2021-03-11 20:29:23,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 20:29:23,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 20:29:24,135 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/safe031_tso.oepc.i[950,963] [2021-03-11 20:29:24,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:29:24,269 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 20:29:24,277 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/safe031_tso.oepc.i[950,963] [2021-03-11 20:29:24,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:29:24,358 INFO L208 MainTranslator]: Completed translation [2021-03-11 20:29:24,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24 WrapperNode [2021-03-11 20:29:24,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 20:29:24,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 20:29:24,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 20:29:24,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 20:29:24,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24" (1/1) ... [2021-03-11 20:29:24,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24" (1/1) ... [2021-03-11 20:29:24,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 20:29:24,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 20:29:24,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 20:29:24,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 20:29:24,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24" (1/1) ... [2021-03-11 20:29:24,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24" (1/1) ... [2021-03-11 20:29:24,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24" (1/1) ... [2021-03-11 20:29:24,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24" (1/1) ... [2021-03-11 20:29:24,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24" (1/1) ... [2021-03-11 20:29:24,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24" (1/1) ... [2021-03-11 20:29:24,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24" (1/1) ... [2021-03-11 20:29:24,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 20:29:24,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 20:29:24,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 20:29:24,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 20:29:24,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24" (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 20:29:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 20:29:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 20:29:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 20:29:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 20:29:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 20:29:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 20:29:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 20:29:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 20:29:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 20:29:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 20:29:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 20:29:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 20:29:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 20:29:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 20:29:24,490 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 20:29:24,739 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 20:29:24,740 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 20:29:24,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:29:24 BoogieIcfgContainer [2021-03-11 20:29:24,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 20:29:24,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 20:29:24,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 20:29:24,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 20:29:24,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 08:29:23" (1/3) ... [2021-03-11 20:29:24,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b6b871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:29:24, skipping insertion in model container [2021-03-11 20:29:24,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:29:24" (2/3) ... [2021-03-11 20:29:24,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b6b871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:29:24, skipping insertion in model container [2021-03-11 20:29:24,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:29:24" (3/3) ... [2021-03-11 20:29:24,746 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2021-03-11 20:29:24,749 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 20:29:24,752 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 20:29:24,753 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 20:29:24,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,773 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,773 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,773 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,773 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,775 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,775 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,776 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,776 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,776 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,776 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,783 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,783 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:29:24,784 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 20:29:24,796 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 20:29:24,809 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 20:29:24,809 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 20:29:24,809 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 20:29:24,809 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 20:29:24,809 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 20:29:24,809 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 20:29:24,809 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 20:29:24,809 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 20:29:24,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-11 20:29:24,838 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-11 20:29:24,838 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:29:24,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-11 20:29:24,841 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-11 20:29:24,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-11 20:29:24,846 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 20:29:24,851 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-11 20:29:24,854 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-11 20:29:24,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-11 20:29:24,865 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-11 20:29:24,865 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:29:24,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-11 20:29:24,867 INFO L116 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-11 20:29:26,447 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-11 20:29:26,631 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-11 20:29:26,695 INFO L131 LiptonReduction]: Checked pairs total: 1666 [2021-03-11 20:29:26,695 INFO L133 LiptonReduction]: Total number of compositions: 46 [2021-03-11 20:29:26,696 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1852 [2021-03-11 20:29:26,714 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-11 20:29:26,715 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:29:26,715 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:29:26,715 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:29:26,715 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:29:26,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:29:26,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1153850174, now seen corresponding path program 1 times [2021-03-11 20:29:26,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:29:26,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608323055] [2021-03-11 20:29:26,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:29:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:29:26,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:26,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:29:26,906 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 20:29:26,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608323055] [2021-03-11 20:29:26,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:29:26,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 20:29:26,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596326236] [2021-03-11 20:29:26,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:29:26,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:29:26,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:29:26,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:29:26,924 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 120 [2021-03-11 20:29:26,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 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 20:29:26,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:29:26,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 120 [2021-03-11 20:29:26,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:29:26,940 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2021-03-11 20:29:26,940 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:29:26,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 25 events. 3/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 1 based on Foata normal form. 5/30 useless extension candidates. Maximal degree in co-relation 36. Up to 10 conditions per place. [2021-03-11 20:29:26,941 INFO L132 encePairwiseOnDemand]: 115/120 looper letters, 3 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2021-03-11 20:29:26,941 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 19 transitions, 59 flow [2021-03-11 20:29:26,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:29:26,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:29:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2021-03-11 20:29:26,949 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8583333333333333 [2021-03-11 20:29:26,950 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2021-03-11 20:29:26,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2021-03-11 20:29:26,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:29:26,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2021-03-11 20:29:26,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 20:29:26,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 20:29:26,958 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 20:29:26,959 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states and 309 transitions. [2021-03-11 20:29:26,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 19 transitions, 59 flow [2021-03-11 20:29:26,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 56 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-11 20:29:26,962 INFO L241 Difference]: Finished difference. Result has 27 places, 19 transitions, 59 flow [2021-03-11 20:29:26,963 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2021-03-11 20:29:26,964 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2021-03-11 20:29:26,964 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 59 flow [2021-03-11 20:29:26,964 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 20:29:26,964 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:29:26,964 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:29:26,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 20:29:26,965 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:29:26,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:29:26,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1409616067, now seen corresponding path program 1 times [2021-03-11 20:29:26,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:29:26,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051129692] [2021-03-11 20:29:26,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:29:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:29:26,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:26,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:29:27,001 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 20:29:27,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051129692] [2021-03-11 20:29:27,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:29:27,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 20:29:27,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23620861] [2021-03-11 20:29:27,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:29:27,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:29:27,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:29:27,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:29:27,007 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 120 [2021-03-11 20:29:27,007 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 20:29:27,007 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:29:27,007 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 120 [2021-03-11 20:29:27,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:29:27,022 INFO L129 PetriNetUnfolder]: 10/42 cut-off events. [2021-03-11 20:29:27,022 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-11 20:29:27,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 42 events. 10/42 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 100 event pairs, 3 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 79. Up to 19 conditions per place. [2021-03-11 20:29:27,023 INFO L132 encePairwiseOnDemand]: 116/120 looper letters, 3 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2021-03-11 20:29:27,023 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 75 flow [2021-03-11 20:29:27,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:29:27,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:29:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-03-11 20:29:27,028 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8444444444444444 [2021-03-11 20:29:27,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-03-11 20:29:27,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-03-11 20:29:27,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:29:27,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-03-11 20:29:27,030 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 20:29:27,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 20:29:27,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 20:29:27,033 INFO L185 Difference]: Start difference. First operand has 27 places, 19 transitions, 59 flow. Second operand 3 states and 304 transitions. [2021-03-11 20:29:27,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 75 flow [2021-03-11 20:29:27,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 20:29:27,034 INFO L241 Difference]: Finished difference. Result has 29 places, 21 transitions, 75 flow [2021-03-11 20:29:27,034 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=29, PETRI_TRANSITIONS=21} [2021-03-11 20:29:27,035 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2021-03-11 20:29:27,035 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 75 flow [2021-03-11 20:29:27,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 20:29:27,035 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:29:27,035 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:29:27,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 20:29:27,035 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:29:27,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:29:27,036 INFO L82 PathProgramCache]: Analyzing trace with hash 748424499, now seen corresponding path program 1 times [2021-03-11 20:29:27,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:29:27,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416603050] [2021-03-11 20:29:27,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:29:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:29:27,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:27,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:29:27,120 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-03-11 20:29:27,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:29:27,126 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 20:29:27,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416603050] [2021-03-11 20:29:27,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:29:27,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:29:27,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40031446] [2021-03-11 20:29:27,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:29:27,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:29:27,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:29:27,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:29:27,130 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 120 [2021-03-11 20:29:27,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:29:27,131 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:29:27,131 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 120 [2021-03-11 20:29:27,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:29:27,178 INFO L129 PetriNetUnfolder]: 59/133 cut-off events. [2021-03-11 20:29:27,178 INFO L130 PetriNetUnfolder]: For 123/166 co-relation queries the response was YES. [2021-03-11 20:29:27,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 133 events. 59/133 cut-off events. For 123/166 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 570 event pairs, 23 based on Foata normal form. 30/150 useless extension candidates. Maximal degree in co-relation 304. Up to 79 conditions per place. [2021-03-11 20:29:27,180 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 8 selfloop transitions, 8 changer transitions 0/31 dead transitions. [2021-03-11 20:29:27,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 31 transitions, 127 flow [2021-03-11 20:29:27,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 20:29:27,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 20:29:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2021-03-11 20:29:27,183 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.755 [2021-03-11 20:29:27,183 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2021-03-11 20:29:27,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2021-03-11 20:29:27,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:29:27,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2021-03-11 20:29:27,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:29:27,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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 20:29:27,185 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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 20:29:27,185 INFO L185 Difference]: Start difference. First operand has 29 places, 21 transitions, 75 flow. Second operand 5 states and 453 transitions. [2021-03-11 20:29:27,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 31 transitions, 127 flow [2021-03-11 20:29:27,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 20:29:27,186 INFO L241 Difference]: Finished difference. Result has 35 places, 28 transitions, 132 flow [2021-03-11 20:29:27,186 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=132, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2021-03-11 20:29:27,187 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2021-03-11 20:29:27,187 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 132 flow [2021-03-11 20:29:27,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:29:27,187 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:29:27,187 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:29:27,187 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 20:29:27,187 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:29:27,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:29:27,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1716716525, now seen corresponding path program 1 times [2021-03-11 20:29:27,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:29:27,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579620355] [2021-03-11 20:29:27,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:29:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:29:27,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:27,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:29:27,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:27,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:29:27,242 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 20:29:27,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579620355] [2021-03-11 20:29:27,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:29:27,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:29:27,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985706518] [2021-03-11 20:29:27,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:29:27,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:29:27,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:29:27,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:29:27,244 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 120 [2021-03-11 20:29:27,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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 20:29:27,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:29:27,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 120 [2021-03-11 20:29:27,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:29:27,272 INFO L129 PetriNetUnfolder]: 69/169 cut-off events. [2021-03-11 20:29:27,272 INFO L130 PetriNetUnfolder]: For 431/503 co-relation queries the response was YES. [2021-03-11 20:29:27,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 169 events. 69/169 cut-off events. For 431/503 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 863 event pairs, 27 based on Foata normal form. 19/173 useless extension candidates. Maximal degree in co-relation 511. Up to 113 conditions per place. [2021-03-11 20:29:27,276 INFO L132 encePairwiseOnDemand]: 117/120 looper letters, 3 selfloop transitions, 3 changer transitions 1/28 dead transitions. [2021-03-11 20:29:27,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 28 transitions, 144 flow [2021-03-11 20:29:27,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:29:27,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:29:27,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2021-03-11 20:29:27,278 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.85 [2021-03-11 20:29:27,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2021-03-11 20:29:27,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2021-03-11 20:29:27,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:29:27,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2021-03-11 20:29:27,279 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 20:29:27,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 20:29:27,279 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 20:29:27,279 INFO L185 Difference]: Start difference. First operand has 35 places, 28 transitions, 132 flow. Second operand 3 states and 306 transitions. [2021-03-11 20:29:27,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 28 transitions, 144 flow [2021-03-11 20:29:27,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 28 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 20:29:27,282 INFO L241 Difference]: Finished difference. Result has 37 places, 27 transitions, 133 flow [2021-03-11 20:29:27,282 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2021-03-11 20:29:27,282 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2021-03-11 20:29:27,282 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 133 flow [2021-03-11 20:29:27,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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 20:29:27,283 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:29:27,283 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:29:27,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 20:29:27,283 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:29:27,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:29:27,283 INFO L82 PathProgramCache]: Analyzing trace with hash -416329804, now seen corresponding path program 1 times [2021-03-11 20:29:27,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:29:27,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700845637] [2021-03-11 20:29:27,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:29:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:29:27,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:27,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:29:27,352 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-11 20:29:27,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 20:29:27,357 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-11 20:29:27,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:29:27,364 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 20:29:27,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700845637] [2021-03-11 20:29:27,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:29:27,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:29:27,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473188397] [2021-03-11 20:29:27,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 20:29:27,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:29:27,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 20:29:27,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 20:29:27,366 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 120 [2021-03-11 20:29:27,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 133 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:29:27,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:29:27,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 120 [2021-03-11 20:29:27,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:29:27,419 INFO L129 PetriNetUnfolder]: 44/137 cut-off events. [2021-03-11 20:29:27,419 INFO L130 PetriNetUnfolder]: For 440/594 co-relation queries the response was YES. [2021-03-11 20:29:27,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 137 events. 44/137 cut-off events. For 440/594 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 683 event pairs, 4 based on Foata normal form. 70/202 useless extension candidates. Maximal degree in co-relation 496. Up to 100 conditions per place. [2021-03-11 20:29:27,420 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 5 selfloop transitions, 13 changer transitions 4/37 dead transitions. [2021-03-11 20:29:27,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 235 flow [2021-03-11 20:29:27,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 20:29:27,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 20:29:27,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 633 transitions. [2021-03-11 20:29:27,421 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7535714285714286 [2021-03-11 20:29:27,421 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 633 transitions. [2021-03-11 20:29:27,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 633 transitions. [2021-03-11 20:29:27,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:29:27,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 633 transitions. [2021-03-11 20:29:27,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 90.42857142857143) internal successors, (633), 7 states have internal predecessors, (633), 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 20:29:27,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 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 20:29:27,424 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 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 20:29:27,425 INFO L185 Difference]: Start difference. First operand has 37 places, 27 transitions, 133 flow. Second operand 7 states and 633 transitions. [2021-03-11 20:29:27,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 235 flow [2021-03-11 20:29:27,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 230 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-11 20:29:27,428 INFO L241 Difference]: Finished difference. Result has 45 places, 33 transitions, 216 flow [2021-03-11 20:29:27,428 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=216, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2021-03-11 20:29:27,428 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 18 predicate places. [2021-03-11 20:29:27,428 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 216 flow [2021-03-11 20:29:27,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:29:27,429 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:29:27,429 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:29:27,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 20:29:27,429 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:29:27,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:29:27,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1007810545, now seen corresponding path program 1 times [2021-03-11 20:29:27,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:29:27,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476991345] [2021-03-11 20:29:27,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:29:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:29:27,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:27,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:29:27,472 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-11 20:29:27,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:29:27,478 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 20:29:27,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476991345] [2021-03-11 20:29:27,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:29:27,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:29:27,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145386748] [2021-03-11 20:29:27,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:29:27,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:29:27,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:29:27,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:29:27,482 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 120 [2021-03-11 20:29:27,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 20:29:27,485 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:29:27,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 120 [2021-03-11 20:29:27,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:29:27,521 INFO L129 PetriNetUnfolder]: 72/256 cut-off events. [2021-03-11 20:29:27,521 INFO L130 PetriNetUnfolder]: For 1246/1381 co-relation queries the response was YES. [2021-03-11 20:29:27,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 256 events. 72/256 cut-off events. For 1246/1381 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1714 event pairs, 8 based on Foata normal form. 30/280 useless extension candidates. Maximal degree in co-relation 1038. Up to 177 conditions per place. [2021-03-11 20:29:27,523 INFO L132 encePairwiseOnDemand]: 113/120 looper letters, 9 selfloop transitions, 10 changer transitions 0/41 dead transitions. [2021-03-11 20:29:27,523 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 288 flow [2021-03-11 20:29:27,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:29:27,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:29:27,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2021-03-11 20:29:27,524 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8027777777777778 [2021-03-11 20:29:27,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2021-03-11 20:29:27,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2021-03-11 20:29:27,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:29:27,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2021-03-11 20:29:27,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 20:29:27,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 20:29:27,526 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 20:29:27,526 INFO L185 Difference]: Start difference. First operand has 45 places, 33 transitions, 216 flow. Second operand 3 states and 289 transitions. [2021-03-11 20:29:27,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 288 flow [2021-03-11 20:29:27,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 258 flow, removed 11 selfloop flow, removed 2 redundant places. [2021-03-11 20:29:27,531 INFO L241 Difference]: Finished difference. Result has 47 places, 41 transitions, 278 flow [2021-03-11 20:29:27,531 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2021-03-11 20:29:27,532 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 20 predicate places. [2021-03-11 20:29:27,532 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 278 flow [2021-03-11 20:29:27,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 20:29:27,532 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:29:27,532 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:29:27,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 20:29:27,532 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:29:27,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:29:27,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1360678607, now seen corresponding path program 2 times [2021-03-11 20:29:27,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:29:27,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877636782] [2021-03-11 20:29:27,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:29:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:29:27,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:27,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:29:27,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:27,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:29:27,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:27,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:29:27,575 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 20:29:27,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877636782] [2021-03-11 20:29:27,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:29:27,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:29:27,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830105801] [2021-03-11 20:29:27,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:29:27,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:29:27,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:29:27,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:29:27,579 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 120 [2021-03-11 20:29:27,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 278 flow. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 20:29:27,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:29:27,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 120 [2021-03-11 20:29:27,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:29:27,615 INFO L129 PetriNetUnfolder]: 98/351 cut-off events. [2021-03-11 20:29:27,615 INFO L130 PetriNetUnfolder]: For 1401/1496 co-relation queries the response was YES. [2021-03-11 20:29:27,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1235 conditions, 351 events. 98/351 cut-off events. For 1401/1496 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 2596 event pairs, 9 based on Foata normal form. 33/369 useless extension candidates. Maximal degree in co-relation 1211. Up to 140 conditions per place. [2021-03-11 20:29:27,618 INFO L132 encePairwiseOnDemand]: 117/120 looper letters, 5 selfloop transitions, 3 changer transitions 1/44 dead transitions. [2021-03-11 20:29:27,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 44 transitions, 322 flow [2021-03-11 20:29:27,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 20:29:27,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 20:29:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 395 transitions. [2021-03-11 20:29:27,619 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8229166666666666 [2021-03-11 20:29:27,619 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 395 transitions. [2021-03-11 20:29:27,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 395 transitions. [2021-03-11 20:29:27,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:29:27,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 395 transitions. [2021-03-11 20:29:27,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:29:27,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 20:29:27,621 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 20:29:27,621 INFO L185 Difference]: Start difference. First operand has 47 places, 41 transitions, 278 flow. Second operand 4 states and 395 transitions. [2021-03-11 20:29:27,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 44 transitions, 322 flow [2021-03-11 20:29:27,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 44 transitions, 300 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 20:29:27,626 INFO L241 Difference]: Finished difference. Result has 50 places, 42 transitions, 277 flow [2021-03-11 20:29:27,626 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=50, PETRI_TRANSITIONS=42} [2021-03-11 20:29:27,626 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 23 predicate places. [2021-03-11 20:29:27,626 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 42 transitions, 277 flow [2021-03-11 20:29:27,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 20:29:27,626 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:29:27,626 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:29:27,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 20:29:27,627 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:29:27,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:29:27,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1681975701, now seen corresponding path program 1 times [2021-03-11 20:29:27,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:29:27,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934892930] [2021-03-11 20:29:27,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:29:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:29:27,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:27,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:29:27,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:29:27,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:29:27,668 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-11 20:29:27,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 20:29:27,673 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-11 20:29:27,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:29:27,680 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 20:29:27,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934892930] [2021-03-11 20:29:27,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:29:27,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 20:29:27,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284374470] [2021-03-11 20:29:27,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 20:29:27,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:29:27,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 20:29:27,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-11 20:29:27,682 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 120 [2021-03-11 20:29:27,683 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 277 flow. Second operand has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:29:27,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:29:27,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 120 [2021-03-11 20:29:27,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:29:27,751 INFO L129 PetriNetUnfolder]: 89/338 cut-off events. [2021-03-11 20:29:27,751 INFO L130 PetriNetUnfolder]: For 1510/2046 co-relation queries the response was YES. [2021-03-11 20:29:27,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1406 conditions, 338 events. 89/338 cut-off events. For 1510/2046 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2555 event pairs, 3 based on Foata normal form. 243/566 useless extension candidates. Maximal degree in co-relation 1381. Up to 139 conditions per place. [2021-03-11 20:29:27,752 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2021-03-11 20:29:27,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 45 transitions, 331 flow [2021-03-11 20:29:27,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 20:29:27,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 20:29:27,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 805 transitions. [2021-03-11 20:29:27,754 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7453703703703703 [2021-03-11 20:29:27,754 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 805 transitions. [2021-03-11 20:29:27,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 805 transitions. [2021-03-11 20:29:27,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:29:27,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 805 transitions. [2021-03-11 20:29:27,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 89.44444444444444) internal successors, (805), 9 states have internal predecessors, (805), 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 20:29:27,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 120.0) internal successors, (1200), 10 states have internal predecessors, (1200), 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 20:29:27,761 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 120.0) internal successors, (1200), 10 states have internal predecessors, (1200), 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 20:29:27,761 INFO L185 Difference]: Start difference. First operand has 50 places, 42 transitions, 277 flow. Second operand 9 states and 805 transitions. [2021-03-11 20:29:27,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 45 transitions, 331 flow [2021-03-11 20:29:27,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 45 transitions, 319 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-11 20:29:27,763 INFO L241 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2021-03-11 20:29:27,764 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2021-03-11 20:29:27,764 INFO L335 CegarLoopForPetriNet]: 27 programPoint places, 25 predicate places. [2021-03-11 20:29:27,764 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2021-03-11 20:29:27,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:29:27,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 20:29:27,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 08:29:27 BasicIcfg [2021-03-11 20:29:27,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 20:29:27,767 INFO L168 Benchmark]: Toolchain (without parser) took 3840.74 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 313.4 MB in the beginning and 187.9 MB in the end (delta: 125.5 MB). Peak memory consumption was 199.7 MB. Max. memory is 16.0 GB. [2021-03-11 20:29:27,768 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 350.2 MB. Free memory was 331.7 MB in the beginning and 331.7 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 20:29:27,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.73 ms. Allocated memory is still 350.2 MB. Free memory was 312.8 MB in the beginning and 312.4 MB in the end (delta: 422.0 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-03-11 20:29:27,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.08 ms. Allocated memory is still 350.2 MB. Free memory was 312.4 MB in the beginning and 310.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:29:27,770 INFO L168 Benchmark]: Boogie Preprocessor took 25.35 ms. Allocated memory is still 350.2 MB. Free memory was 310.3 MB in the beginning and 309.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:29:27,772 INFO L168 Benchmark]: RCFGBuilder took 309.11 ms. Allocated memory is still 350.2 MB. Free memory was 309.2 MB in the beginning and 285.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:29:27,772 INFO L168 Benchmark]: TraceAbstraction took 3024.93 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 284.1 MB in the beginning and 187.9 MB in the end (delta: 96.1 MB). Peak memory consumption was 169.5 MB. Max. memory is 16.0 GB. [2021-03-11 20:29:27,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 350.2 MB. Free memory was 331.7 MB in the beginning and 331.7 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 427.73 ms. Allocated memory is still 350.2 MB. Free memory was 312.8 MB in the beginning and 312.4 MB in the end (delta: 422.0 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.08 ms. Allocated memory is still 350.2 MB. Free memory was 312.4 MB in the beginning and 310.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.35 ms. Allocated memory is still 350.2 MB. Free memory was 310.3 MB in the beginning and 309.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 309.11 ms. Allocated memory is still 350.2 MB. Free memory was 309.2 MB in the beginning and 285.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3024.93 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 284.1 MB in the beginning and 187.9 MB in the end (delta: 96.1 MB). Peak memory consumption was 169.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1840.9ms, 68 PlacesBefore, 27 PlacesAfterwards, 59 TransitionsBefore, 18 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 46 TotalNumberOfCompositions, 1666 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 893, positive: 814, positive conditional: 0, positive unconditional: 814, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 582, positive: 540, positive conditional: 0, positive unconditional: 540, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 582, positive: 534, positive conditional: 0, positive unconditional: 534, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 173, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 140, negative conditional: 0, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 893, positive: 274, positive conditional: 0, positive unconditional: 274, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 582, unknown conditional: 0, unknown unconditional: 582] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - 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, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2958.4ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 415.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1897.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 14 SDslu, 9 SDs, 0 SdLazy, 102 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 73.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=6, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.5ms SsaConstructionTime, 139.5ms SatisfiabilityAnalysisTime, 348.1ms InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 288 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...