/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 07:31:53,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 07:31:53,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 07:31:54,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-13 07:31:54,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-13 07:31:54,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-13 07:31:54,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-13 07:31:54,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-13 07:31:54,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-13 07:31:54,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-13 07:31:54,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-13 07:31:54,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-13 07:31:54,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 07:31:54,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 07:31:54,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 07:31:54,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 07:31:54,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 07:31:54,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 07:31:54,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 07:31:54,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 07:31:54,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 07:31:54,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 07:31:54,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 07:31:54,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 07:31:54,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-13 07:31:54,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 07:31:54,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 07:31:54,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 07:31:54,090 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-NoLbe.epf [2021-06-13 07:31:54,125 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 07:31:54,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 07:31:54,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 07:31:54,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 07:31:54,128 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 07:31:54,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 07:31:54,129 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 07:31:54,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 07:31:54,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 07:31:54,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 07:31:54,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 07:31:54,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 07:31:54,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 07:31:54,131 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 07:31:54,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 07:31:54,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 07:31:54,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 07:31:54,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 07:31:54,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 07:31:54,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 07:31:54,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 07:31:54,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 07:31:54,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 07:31:54,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 07:31:54,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 07:31:54,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 07:31:54,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 07:31:54,133 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 07:31:54,133 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 07:31:54,134 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 07:31:54,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 07:31:54,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 07:31:54,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 07:31:54,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 07:31:54,466 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 07:31:54,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-06-13 07:31:54,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388f12c9b/c22cb47349724c69a4a762f3ab2e2136/FLAGb967b224e [2021-06-13 07:31:54,986 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 07:31:54,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-06-13 07:31:55,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388f12c9b/c22cb47349724c69a4a762f3ab2e2136/FLAGb967b224e [2021-06-13 07:31:55,329 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388f12c9b/c22cb47349724c69a4a762f3ab2e2136 [2021-06-13 07:31:55,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 07:31:55,334 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 07:31:55,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 07:31:55,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 07:31:55,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 07:31:55,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:31:55" (1/1) ... [2021-06-13 07:31:55,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612274c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55, skipping insertion in model container [2021-06-13 07:31:55,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:31:55" (1/1) ... [2021-06-13 07:31:55,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 07:31:55,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 07:31:55,534 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i[949,962] [2021-06-13 07:31:55,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:31:55,725 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 07:31:55,734 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i[949,962] [2021-06-13 07:31:55,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:31:55,849 INFO L208 MainTranslator]: Completed translation [2021-06-13 07:31:55,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55 WrapperNode [2021-06-13 07:31:55,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 07:31:55,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 07:31:55,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 07:31:55,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 07:31:55,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55" (1/1) ... [2021-06-13 07:31:55,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55" (1/1) ... [2021-06-13 07:31:55,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 07:31:55,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 07:31:55,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 07:31:55,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 07:31:55,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55" (1/1) ... [2021-06-13 07:31:55,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55" (1/1) ... [2021-06-13 07:31:55,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55" (1/1) ... [2021-06-13 07:31:55,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55" (1/1) ... [2021-06-13 07:31:55,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55" (1/1) ... [2021-06-13 07:31:55,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55" (1/1) ... [2021-06-13 07:31:55,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55" (1/1) ... [2021-06-13 07:31:55,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 07:31:55,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 07:31:55,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 07:31:55,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 07:31:55,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 07:31:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-13 07:31:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-13 07:31:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 07:31:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-13 07:31:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-13 07:31:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-13 07:31:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-13 07:31:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-13 07:31:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-13 07:31:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-13 07:31:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-13 07:31:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-13 07:31:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-13 07:31:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-13 07:31:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 07:31:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 07:31:55,984 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 07:31:56,355 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 07:31:56,355 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-13 07:31:56,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:31:56 BoogieIcfgContainer [2021-06-13 07:31:56,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 07:31:56,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 07:31:56,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 07:31:56,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 07:31:56,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 07:31:55" (1/3) ... [2021-06-13 07:31:56,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602c7c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:31:56, skipping insertion in model container [2021-06-13 07:31:56,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:55" (2/3) ... [2021-06-13 07:31:56,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602c7c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:31:56, skipping insertion in model container [2021-06-13 07:31:56,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:31:56" (3/3) ... [2021-06-13 07:31:56,364 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2021-06-13 07:31:56,368 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 07:31:56,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 07:31:56,369 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 07:31:56,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,400 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,400 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,401 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,401 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,403 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,403 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,403 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,403 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,403 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,404 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,404 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,404 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,404 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,405 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,406 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,406 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,406 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,406 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,406 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,406 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,406 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,406 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,407 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,407 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,407 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,409 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,409 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,413 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,414 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,416 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,416 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,416 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,416 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,418 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,418 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:56,420 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-13 07:31:56,439 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-13 07:31:56,454 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 07:31:56,454 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 07:31:56,455 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 07:31:56,455 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 07:31:56,455 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 07:31:56,455 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 07:31:56,455 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 07:31:56,455 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 07:31:56,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 98 transitions, 216 flow [2021-06-13 07:31:56,518 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-06-13 07:31:56,518 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:31:56,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2021-06-13 07:31:56,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 98 transitions, 216 flow [2021-06-13 07:31:56,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 80 transitions, 172 flow [2021-06-13 07:31:56,547 INFO L129 PetriNetUnfolder]: 1/79 cut-off events. [2021-06-13 07:31:56,547 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:31:56,548 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:56,548 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:56,549 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:56,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:56,553 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-06-13 07:31:56,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:56,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943987031] [2021-06-13 07:31:56,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:56,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:56,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:56,939 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:31:56,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:31:56,967 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:56,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:57,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:57,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:57,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:57,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:57,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:57,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:57,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:57,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:57,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943987031] [2021-06-13 07:31:57,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943987031] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:57,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:57,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:31:57,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864163025] [2021-06-13 07:31:57,102 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:31:57,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:57,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:31:57,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:31:57,121 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-06-13 07:31:57,127 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 172 flow. Second operand has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:57,127 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:57,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-06-13 07:31:57,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:57,626 INFO L129 PetriNetUnfolder]: 321/833 cut-off events. [2021-06-13 07:31:57,626 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:31:57,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1397 conditions, 833 events. 321/833 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5133 event pairs, 112 based on Foata normal form. 27/830 useless extension candidates. Maximal degree in co-relation 1362. Up to 259 conditions per place. [2021-06-13 07:31:57,638 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 15 selfloop transitions, 8 changer transitions 34/121 dead transitions. [2021-06-13 07:31:57,638 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 121 transitions, 368 flow [2021-06-13 07:31:57,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 07:31:57,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 07:31:57,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 772 transitions. [2021-06-13 07:31:57,653 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8752834467120182 [2021-06-13 07:31:57,654 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 772 transitions. [2021-06-13 07:31:57,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 772 transitions. [2021-06-13 07:31:57,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:57,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 772 transitions. [2021-06-13 07:31:57,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.77777777777777) internal successors, (772), 9 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:57,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:57,673 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:57,675 INFO L185 Difference]: Start difference. First operand has 92 places, 80 transitions, 172 flow. Second operand 9 states and 772 transitions. [2021-06-13 07:31:57,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 121 transitions, 368 flow [2021-06-13 07:31:57,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 121 transitions, 364 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-13 07:31:57,682 INFO L241 Difference]: Finished difference. Result has 103 places, 83 transitions, 244 flow [2021-06-13 07:31:57,683 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=244, PETRI_PLACES=103, PETRI_TRANSITIONS=83} [2021-06-13 07:31:57,684 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 11 predicate places. [2021-06-13 07:31:57,684 INFO L482 AbstractCegarLoop]: Abstraction has has 103 places, 83 transitions, 244 flow [2021-06-13 07:31:57,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:57,685 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:57,685 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:57,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 07:31:57,685 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:57,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:57,686 INFO L82 PathProgramCache]: Analyzing trace with hash -591376929, now seen corresponding path program 1 times [2021-06-13 07:31:57,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:57,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808936017] [2021-06-13 07:31:57,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:57,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:57,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:57,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:57,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:57,753 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:31:57,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:31:57,774 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:57,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:57,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:57,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:57,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:57,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:57,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:57,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:57,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:57,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808936017] [2021-06-13 07:31:57,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808936017] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:57,844 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:57,844 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:31:57,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251216305] [2021-06-13 07:31:57,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:31:57,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:57,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:31:57,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:31:57,849 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-06-13 07:31:57,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 83 transitions, 244 flow. Second operand has 7 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:57,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:57,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-06-13 07:31:57,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:58,372 INFO L129 PetriNetUnfolder]: 214/649 cut-off events. [2021-06-13 07:31:58,373 INFO L130 PetriNetUnfolder]: For 1366/1890 co-relation queries the response was YES. [2021-06-13 07:31:58,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2039 conditions, 649 events. 214/649 cut-off events. For 1366/1890 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3763 event pairs, 1 based on Foata normal form. 24/651 useless extension candidates. Maximal degree in co-relation 1996. Up to 228 conditions per place. [2021-06-13 07:31:58,384 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 19 selfloop transitions, 11 changer transitions 49/143 dead transitions. [2021-06-13 07:31:58,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 143 transitions, 838 flow [2021-06-13 07:31:58,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:31:58,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:31:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1106 transitions. [2021-06-13 07:31:58,391 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8681318681318682 [2021-06-13 07:31:58,391 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1106 transitions. [2021-06-13 07:31:58,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1106 transitions. [2021-06-13 07:31:58,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:58,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1106 transitions. [2021-06-13 07:31:58,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 85.07692307692308) internal successors, (1106), 13 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:58,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:58,399 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:58,399 INFO L185 Difference]: Start difference. First operand has 103 places, 83 transitions, 244 flow. Second operand 13 states and 1106 transitions. [2021-06-13 07:31:58,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 143 transitions, 838 flow [2021-06-13 07:31:58,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 143 transitions, 788 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-06-13 07:31:58,411 INFO L241 Difference]: Finished difference. Result has 116 places, 87 transitions, 323 flow [2021-06-13 07:31:58,412 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=323, PETRI_PLACES=116, PETRI_TRANSITIONS=87} [2021-06-13 07:31:58,412 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 24 predicate places. [2021-06-13 07:31:58,412 INFO L482 AbstractCegarLoop]: Abstraction has has 116 places, 87 transitions, 323 flow [2021-06-13 07:31:58,413 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:58,413 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:58,413 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:58,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 07:31:58,413 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:58,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:58,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1174288383, now seen corresponding path program 1 times [2021-06-13 07:31:58,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:58,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544375879] [2021-06-13 07:31:58,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:58,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:58,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:58,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:58,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:58,506 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:31:58,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:31:58,522 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:58,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:58,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:58,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:58,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:58,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:58,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:58,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:58,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:58,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544375879] [2021-06-13 07:31:58,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544375879] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:58,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:58,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:31:58,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643259057] [2021-06-13 07:31:58,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:31:58,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:58,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:31:58,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:31:58,581 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-06-13 07:31:58,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 87 transitions, 323 flow. Second operand has 7 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:58,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:58,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-06-13 07:31:58,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:58,925 INFO L129 PetriNetUnfolder]: 116/438 cut-off events. [2021-06-13 07:31:58,925 INFO L130 PetriNetUnfolder]: For 1518/2146 co-relation queries the response was YES. [2021-06-13 07:31:58,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1530 conditions, 438 events. 116/438 cut-off events. For 1518/2146 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2258 event pairs, 31 based on Foata normal form. 21/444 useless extension candidates. Maximal degree in co-relation 1474. Up to 134 conditions per place. [2021-06-13 07:31:58,929 INFO L132 encePairwiseOnDemand]: 89/98 looper letters, 24 selfloop transitions, 8 changer transitions 34/130 dead transitions. [2021-06-13 07:31:58,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 130 transitions, 808 flow [2021-06-13 07:31:58,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:31:58,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:31:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1085 transitions. [2021-06-13 07:31:58,932 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8516483516483516 [2021-06-13 07:31:58,932 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1085 transitions. [2021-06-13 07:31:58,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1085 transitions. [2021-06-13 07:31:58,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:58,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1085 transitions. [2021-06-13 07:31:58,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 83.46153846153847) internal successors, (1085), 13 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:58,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:58,938 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:58,938 INFO L185 Difference]: Start difference. First operand has 116 places, 87 transitions, 323 flow. Second operand 13 states and 1085 transitions. [2021-06-13 07:31:58,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 130 transitions, 808 flow [2021-06-13 07:31:58,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 130 transitions, 728 flow, removed 40 selfloop flow, removed 7 redundant places. [2021-06-13 07:31:58,945 INFO L241 Difference]: Finished difference. Result has 124 places, 90 transitions, 383 flow [2021-06-13 07:31:58,946 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=383, PETRI_PLACES=124, PETRI_TRANSITIONS=90} [2021-06-13 07:31:58,946 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 32 predicate places. [2021-06-13 07:31:58,946 INFO L482 AbstractCegarLoop]: Abstraction has has 124 places, 90 transitions, 383 flow [2021-06-13 07:31:58,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:58,946 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:58,946 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:58,947 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 07:31:58,947 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:58,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:58,947 INFO L82 PathProgramCache]: Analyzing trace with hash 591383262, now seen corresponding path program 1 times [2021-06-13 07:31:58,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:58,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573295695] [2021-06-13 07:31:58,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:58,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:58,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:58,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:58,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:58,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:58,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:59,003 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:31:59,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:31:59,021 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:59,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:59,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:59,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:59,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:59,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:59,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:59,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573295695] [2021-06-13 07:31:59,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573295695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:59,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:59,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 07:31:59,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226106212] [2021-06-13 07:31:59,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 07:31:59,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:59,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 07:31:59,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-13 07:31:59,083 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-06-13 07:31:59,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 90 transitions, 383 flow. Second operand has 8 states, 8 states have (on average 80.5) internal successors, (644), 8 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:59,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-06-13 07:31:59,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:59,278 INFO L129 PetriNetUnfolder]: 103/413 cut-off events. [2021-06-13 07:31:59,279 INFO L130 PetriNetUnfolder]: For 1629/2677 co-relation queries the response was YES. [2021-06-13 07:31:59,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 413 events. 103/413 cut-off events. For 1629/2677 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2092 event pairs, 32 based on Foata normal form. 20/414 useless extension candidates. Maximal degree in co-relation 1459. Up to 129 conditions per place. [2021-06-13 07:31:59,283 INFO L132 encePairwiseOnDemand]: 88/98 looper letters, 19 selfloop transitions, 9 changer transitions 29/121 dead transitions. [2021-06-13 07:31:59,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 121 transitions, 809 flow [2021-06-13 07:31:59,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 07:31:59,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 07:31:59,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 678 transitions. [2021-06-13 07:31:59,286 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8647959183673469 [2021-06-13 07:31:59,286 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 678 transitions. [2021-06-13 07:31:59,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 678 transitions. [2021-06-13 07:31:59,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:59,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 678 transitions. [2021-06-13 07:31:59,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 84.75) internal successors, (678), 8 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,289 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,289 INFO L185 Difference]: Start difference. First operand has 124 places, 90 transitions, 383 flow. Second operand 8 states and 678 transitions. [2021-06-13 07:31:59,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 121 transitions, 809 flow [2021-06-13 07:31:59,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 121 transitions, 752 flow, removed 26 selfloop flow, removed 9 redundant places. [2021-06-13 07:31:59,297 INFO L241 Difference]: Finished difference. Result has 117 places, 87 transitions, 358 flow [2021-06-13 07:31:59,297 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=358, PETRI_PLACES=117, PETRI_TRANSITIONS=87} [2021-06-13 07:31:59,297 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 25 predicate places. [2021-06-13 07:31:59,297 INFO L482 AbstractCegarLoop]: Abstraction has has 117 places, 87 transitions, 358 flow [2021-06-13 07:31:59,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 80.5) internal successors, (644), 8 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,298 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:59,298 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:59,298 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 07:31:59,298 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:59,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:59,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1511287108, now seen corresponding path program 2 times [2021-06-13 07:31:59,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:59,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738511279] [2021-06-13 07:31:59,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:59,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:59,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:59,344 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:59,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:59,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:59,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:59,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:59,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:59,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:59,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738511279] [2021-06-13 07:31:59,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738511279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:59,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:59,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:31:59,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168750398] [2021-06-13 07:31:59,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:31:59,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:59,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:31:59,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:31:59,411 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 98 [2021-06-13 07:31:59,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 87 transitions, 358 flow. Second operand has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:59,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 98 [2021-06-13 07:31:59,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:59,594 INFO L129 PetriNetUnfolder]: 40/238 cut-off events. [2021-06-13 07:31:59,594 INFO L130 PetriNetUnfolder]: For 578/665 co-relation queries the response was YES. [2021-06-13 07:31:59,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 716 conditions, 238 events. 40/238 cut-off events. For 578/665 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1018 event pairs, 27 based on Foata normal form. 4/235 useless extension candidates. Maximal degree in co-relation 678. Up to 65 conditions per place. [2021-06-13 07:31:59,596 INFO L132 encePairwiseOnDemand]: 92/98 looper letters, 6 selfloop transitions, 3 changer transitions 10/97 dead transitions. [2021-06-13 07:31:59,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 97 transitions, 464 flow [2021-06-13 07:31:59,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 07:31:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 07:31:59,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 794 transitions. [2021-06-13 07:31:59,599 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9002267573696145 [2021-06-13 07:31:59,599 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 794 transitions. [2021-06-13 07:31:59,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 794 transitions. [2021-06-13 07:31:59,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:59,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 794 transitions. [2021-06-13 07:31:59,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.22222222222223) internal successors, (794), 9 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,603 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,603 INFO L185 Difference]: Start difference. First operand has 117 places, 87 transitions, 358 flow. Second operand 9 states and 794 transitions. [2021-06-13 07:31:59,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 97 transitions, 464 flow [2021-06-13 07:31:59,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 97 transitions, 400 flow, removed 17 selfloop flow, removed 12 redundant places. [2021-06-13 07:31:59,607 INFO L241 Difference]: Finished difference. Result has 117 places, 87 transitions, 327 flow [2021-06-13 07:31:59,608 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=327, PETRI_PLACES=117, PETRI_TRANSITIONS=87} [2021-06-13 07:31:59,608 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 25 predicate places. [2021-06-13 07:31:59,608 INFO L482 AbstractCegarLoop]: Abstraction has has 117 places, 87 transitions, 327 flow [2021-06-13 07:31:59,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,609 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:59,609 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:59,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-13 07:31:59,610 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:59,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:59,610 INFO L82 PathProgramCache]: Analyzing trace with hash -430122511, now seen corresponding path program 1 times [2021-06-13 07:31:59,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:59,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488555509] [2021-06-13 07:31:59,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:59,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:59,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:59,708 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:31:59,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:31:59,728 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:59,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:59,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:59,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:59,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:59,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:59,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:59,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:59,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488555509] [2021-06-13 07:31:59,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488555509] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:59,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:59,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:31:59,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800607783] [2021-06-13 07:31:59,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:31:59,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:59,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:31:59,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:31:59,768 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-06-13 07:31:59,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 87 transitions, 327 flow. Second operand has 7 states, 7 states have (on average 80.85714285714286) internal successors, (566), 7 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,768 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:59,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-06-13 07:31:59,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:59,911 INFO L129 PetriNetUnfolder]: 46/279 cut-off events. [2021-06-13 07:31:59,911 INFO L130 PetriNetUnfolder]: For 636/831 co-relation queries the response was YES. [2021-06-13 07:31:59,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 279 events. 46/279 cut-off events. For 636/831 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1250 event pairs, 5 based on Foata normal form. 15/288 useless extension candidates. Maximal degree in co-relation 805. Up to 65 conditions per place. [2021-06-13 07:31:59,913 INFO L132 encePairwiseOnDemand]: 88/98 looper letters, 18 selfloop transitions, 9 changer transitions 17/108 dead transitions. [2021-06-13 07:31:59,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 108 transitions, 593 flow [2021-06-13 07:31:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 07:31:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 07:31:59,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 832 transitions. [2021-06-13 07:31:59,916 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8489795918367347 [2021-06-13 07:31:59,916 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 832 transitions. [2021-06-13 07:31:59,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 832 transitions. [2021-06-13 07:31:59,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:59,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 832 transitions. [2021-06-13 07:31:59,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.2) internal successors, (832), 10 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,921 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,921 INFO L185 Difference]: Start difference. First operand has 117 places, 87 transitions, 327 flow. Second operand 10 states and 832 transitions. [2021-06-13 07:31:59,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 108 transitions, 593 flow [2021-06-13 07:31:59,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 108 transitions, 547 flow, removed 20 selfloop flow, removed 8 redundant places. [2021-06-13 07:31:59,925 INFO L241 Difference]: Finished difference. Result has 119 places, 86 transitions, 337 flow [2021-06-13 07:31:59,926 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=337, PETRI_PLACES=119, PETRI_TRANSITIONS=86} [2021-06-13 07:31:59,926 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 27 predicate places. [2021-06-13 07:31:59,926 INFO L482 AbstractCegarLoop]: Abstraction has has 119 places, 86 transitions, 337 flow [2021-06-13 07:31:59,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.85714285714286) internal successors, (566), 7 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:59,926 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:59,926 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:59,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-13 07:31:59,927 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:59,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:59,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1616434261, now seen corresponding path program 1 times [2021-06-13 07:31:59,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:59,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442024172] [2021-06-13 07:31:59,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:00,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:00,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:00,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:00,013 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:32:00,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:32:00,028 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:32:00,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:32:00,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:00,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:00,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:00,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:00,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:00,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442024172] [2021-06-13 07:32:00,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442024172] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:00,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:00,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 07:32:00,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429915388] [2021-06-13 07:32:00,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 07:32:00,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:00,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 07:32:00,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-13 07:32:00,069 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 98 [2021-06-13 07:32:00,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 86 transitions, 337 flow. Second operand has 8 states, 8 states have (on average 78.75) internal successors, (630), 8 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:00,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:00,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 98 [2021-06-13 07:32:00,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:00,263 INFO L129 PetriNetUnfolder]: 111/476 cut-off events. [2021-06-13 07:32:00,263 INFO L130 PetriNetUnfolder]: For 1417/1967 co-relation queries the response was YES. [2021-06-13 07:32:00,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 476 events. 111/476 cut-off events. For 1417/1967 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2730 event pairs, 16 based on Foata normal form. 22/492 useless extension candidates. Maximal degree in co-relation 1458. Up to 100 conditions per place. [2021-06-13 07:32:00,267 INFO L132 encePairwiseOnDemand]: 84/98 looper letters, 21 selfloop transitions, 12 changer transitions 45/140 dead transitions. [2021-06-13 07:32:00,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 140 transitions, 995 flow [2021-06-13 07:32:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 07:32:00,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 07:32:00,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 905 transitions. [2021-06-13 07:32:00,269 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.839517625231911 [2021-06-13 07:32:00,269 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 905 transitions. [2021-06-13 07:32:00,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 905 transitions. [2021-06-13 07:32:00,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:00,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 905 transitions. [2021-06-13 07:32:00,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.27272727272727) internal successors, (905), 11 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:00,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:00,274 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:00,274 INFO L185 Difference]: Start difference. First operand has 119 places, 86 transitions, 337 flow. Second operand 11 states and 905 transitions. [2021-06-13 07:32:00,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 140 transitions, 995 flow [2021-06-13 07:32:00,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 140 transitions, 833 flow, removed 23 selfloop flow, removed 10 redundant places. [2021-06-13 07:32:00,279 INFO L241 Difference]: Finished difference. Result has 121 places, 86 transitions, 337 flow [2021-06-13 07:32:00,280 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=337, PETRI_PLACES=121, PETRI_TRANSITIONS=86} [2021-06-13 07:32:00,280 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 29 predicate places. [2021-06-13 07:32:00,280 INFO L482 AbstractCegarLoop]: Abstraction has has 121 places, 86 transitions, 337 flow [2021-06-13 07:32:00,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 78.75) internal successors, (630), 8 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:00,280 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:00,280 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:00,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-13 07:32:00,281 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:00,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:00,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1458958268, now seen corresponding path program 1 times [2021-06-13 07:32:00,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:00,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115842976] [2021-06-13 07:32:00,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:00,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:00,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:00,339 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:32:00,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:32:00,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:32:00,366 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:32:00,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:00,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:00,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:00,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:00,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115842976] [2021-06-13 07:32:00,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115842976] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:00,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:00,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:32:00,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721101277] [2021-06-13 07:32:00,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:32:00,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:00,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:32:00,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:32:00,377 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-06-13 07:32:00,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 86 transitions, 337 flow. Second operand has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:00,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:00,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-06-13 07:32:00,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:00,749 INFO L129 PetriNetUnfolder]: 1301/2505 cut-off events. [2021-06-13 07:32:00,749 INFO L130 PetriNetUnfolder]: For 1210/1269 co-relation queries the response was YES. [2021-06-13 07:32:00,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5305 conditions, 2505 events. 1301/2505 cut-off events. For 1210/1269 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 18588 event pairs, 86 based on Foata normal form. 0/2215 useless extension candidates. Maximal degree in co-relation 5247. Up to 845 conditions per place. [2021-06-13 07:32:00,771 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 29 selfloop transitions, 20 changer transitions 0/123 dead transitions. [2021-06-13 07:32:00,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 123 transitions, 509 flow [2021-06-13 07:32:00,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 07:32:00,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 07:32:00,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 881 transitions. [2021-06-13 07:32:00,773 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8989795918367347 [2021-06-13 07:32:00,774 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 881 transitions. [2021-06-13 07:32:00,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 881 transitions. [2021-06-13 07:32:00,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:00,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 881 transitions. [2021-06-13 07:32:00,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 88.1) internal successors, (881), 10 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:00,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:00,778 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:00,778 INFO L185 Difference]: Start difference. First operand has 121 places, 86 transitions, 337 flow. Second operand 10 states and 881 transitions. [2021-06-13 07:32:00,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 123 transitions, 509 flow [2021-06-13 07:32:00,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 123 transitions, 459 flow, removed 9 selfloop flow, removed 12 redundant places. [2021-06-13 07:32:00,785 INFO L241 Difference]: Finished difference. Result has 118 places, 104 transitions, 430 flow [2021-06-13 07:32:00,786 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=430, PETRI_PLACES=118, PETRI_TRANSITIONS=104} [2021-06-13 07:32:00,786 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 26 predicate places. [2021-06-13 07:32:00,786 INFO L482 AbstractCegarLoop]: Abstraction has has 118 places, 104 transitions, 430 flow [2021-06-13 07:32:00,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:00,787 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:00,787 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:00,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-13 07:32:00,787 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:00,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:00,787 INFO L82 PathProgramCache]: Analyzing trace with hash -622148404, now seen corresponding path program 1 times [2021-06-13 07:32:00,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:00,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838754830] [2021-06-13 07:32:00,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:00,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:00,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:00,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:00,827 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:32:00,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:32:00,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:32:00,851 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:32:00,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:00,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:00,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:00,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:00,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838754830] [2021-06-13 07:32:00,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838754830] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:00,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:00,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:32:00,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398269603] [2021-06-13 07:32:00,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:32:00,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:00,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:32:00,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:32:00,862 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-06-13 07:32:00,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 104 transitions, 430 flow. Second operand has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:00,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:00,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-06-13 07:32:00,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:01,301 INFO L129 PetriNetUnfolder]: 1457/2836 cut-off events. [2021-06-13 07:32:01,301 INFO L130 PetriNetUnfolder]: For 8573/9806 co-relation queries the response was YES. [2021-06-13 07:32:01,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10995 conditions, 2836 events. 1457/2836 cut-off events. For 8573/9806 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 22056 event pairs, 31 based on Foata normal form. 212/2816 useless extension candidates. Maximal degree in co-relation 10943. Up to 1582 conditions per place. [2021-06-13 07:32:01,325 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 34 selfloop transitions, 38 changer transitions 0/146 dead transitions. [2021-06-13 07:32:01,326 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 146 transitions, 854 flow [2021-06-13 07:32:01,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:32:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:32:01,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1147 transitions. [2021-06-13 07:32:01,329 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9003139717425431 [2021-06-13 07:32:01,329 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1147 transitions. [2021-06-13 07:32:01,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1147 transitions. [2021-06-13 07:32:01,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:01,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1147 transitions. [2021-06-13 07:32:01,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 88.23076923076923) internal successors, (1147), 13 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:01,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:01,335 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:01,335 INFO L185 Difference]: Start difference. First operand has 118 places, 104 transitions, 430 flow. Second operand 13 states and 1147 transitions. [2021-06-13 07:32:01,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 146 transitions, 854 flow [2021-06-13 07:32:01,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 146 transitions, 852 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-13 07:32:01,348 INFO L241 Difference]: Finished difference. Result has 135 places, 124 transitions, 721 flow [2021-06-13 07:32:01,348 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=721, PETRI_PLACES=135, PETRI_TRANSITIONS=124} [2021-06-13 07:32:01,348 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 43 predicate places. [2021-06-13 07:32:01,348 INFO L482 AbstractCegarLoop]: Abstraction has has 135 places, 124 transitions, 721 flow [2021-06-13 07:32:01,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:01,349 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:01,349 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:01,349 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-13 07:32:01,349 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:01,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:01,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1356368691, now seen corresponding path program 1 times [2021-06-13 07:32:01,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:01,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593178453] [2021-06-13 07:32:01,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:01,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:01,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:01,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:01,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:01,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:01,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:01,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:01,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:01,395 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:32:01,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:32:01,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:01,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:32:01,419 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:32:01,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:01,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:01,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:01,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:01,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:01,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593178453] [2021-06-13 07:32:01,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593178453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:01,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:01,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 07:32:01,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223228941] [2021-06-13 07:32:01,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 07:32:01,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:01,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 07:32:01,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 07:32:01,430 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-06-13 07:32:01,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 124 transitions, 721 flow. Second operand has 8 states, 8 states have (on average 84.125) internal successors, (673), 8 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:01,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:01,431 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-06-13 07:32:01,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:01,965 INFO L129 PetriNetUnfolder]: 1430/2810 cut-off events. [2021-06-13 07:32:01,965 INFO L130 PetriNetUnfolder]: For 26206/29875 co-relation queries the response was YES. [2021-06-13 07:32:01,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15762 conditions, 2810 events. 1430/2810 cut-off events. For 26206/29875 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 22332 event pairs, 5 based on Foata normal form. 326/2912 useless extension candidates. Maximal degree in co-relation 15702. Up to 1559 conditions per place. [2021-06-13 07:32:01,997 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 28 selfloop transitions, 58 changer transitions 12/172 dead transitions. [2021-06-13 07:32:01,997 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 172 transitions, 1423 flow [2021-06-13 07:32:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 07:32:01,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-13 07:32:02,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1413 transitions. [2021-06-13 07:32:02,036 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9011479591836735 [2021-06-13 07:32:02,037 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1413 transitions. [2021-06-13 07:32:02,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1413 transitions. [2021-06-13 07:32:02,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:02,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1413 transitions. [2021-06-13 07:32:02,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 88.3125) internal successors, (1413), 16 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:02,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 98.0) internal successors, (1666), 17 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:02,043 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 98.0) internal successors, (1666), 17 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:02,043 INFO L185 Difference]: Start difference. First operand has 135 places, 124 transitions, 721 flow. Second operand 16 states and 1413 transitions. [2021-06-13 07:32:02,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 172 transitions, 1423 flow [2021-06-13 07:32:02,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 172 transitions, 1320 flow, removed 42 selfloop flow, removed 4 redundant places. [2021-06-13 07:32:02,153 INFO L241 Difference]: Finished difference. Result has 150 places, 150 transitions, 1087 flow [2021-06-13 07:32:02,153 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1087, PETRI_PLACES=150, PETRI_TRANSITIONS=150} [2021-06-13 07:32:02,154 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 58 predicate places. [2021-06-13 07:32:02,154 INFO L482 AbstractCegarLoop]: Abstraction has has 150 places, 150 transitions, 1087 flow [2021-06-13 07:32:02,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 84.125) internal successors, (673), 8 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:02,154 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:02,154 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:02,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-13 07:32:02,154 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:02,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:02,155 INFO L82 PathProgramCache]: Analyzing trace with hash 2091155102, now seen corresponding path program 1 times [2021-06-13 07:32:02,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:02,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628929429] [2021-06-13 07:32:02,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:02,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:02,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:02,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:02,190 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:32:02,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:32:02,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:02,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:02,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:02,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:02,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:02,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628929429] [2021-06-13 07:32:02,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628929429] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:02,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:02,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:32:02,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066783843] [2021-06-13 07:32:02,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:32:02,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:02,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:32:02,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:32:02,226 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-06-13 07:32:02,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 150 transitions, 1087 flow. Second operand has 7 states, 7 states have (on average 84.57142857142857) internal successors, (592), 7 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:02,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:02,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-06-13 07:32:02,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:02,587 INFO L129 PetriNetUnfolder]: 922/2545 cut-off events. [2021-06-13 07:32:02,587 INFO L130 PetriNetUnfolder]: For 18821/19223 co-relation queries the response was YES. [2021-06-13 07:32:02,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11538 conditions, 2545 events. 922/2545 cut-off events. For 18821/19223 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 24067 event pairs, 8 based on Foata normal form. 15/2405 useless extension candidates. Maximal degree in co-relation 11472. Up to 866 conditions per place. [2021-06-13 07:32:02,617 INFO L132 encePairwiseOnDemand]: 91/98 looper letters, 15 selfloop transitions, 5 changer transitions 4/158 dead transitions. [2021-06-13 07:32:02,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 158 transitions, 1169 flow [2021-06-13 07:32:02,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 07:32:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 07:32:02,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 687 transitions. [2021-06-13 07:32:02,619 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8762755102040817 [2021-06-13 07:32:02,619 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 687 transitions. [2021-06-13 07:32:02,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 687 transitions. [2021-06-13 07:32:02,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:02,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 687 transitions. [2021-06-13 07:32:02,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 85.875) internal successors, (687), 8 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:02,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:02,624 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:02,624 INFO L185 Difference]: Start difference. First operand has 150 places, 150 transitions, 1087 flow. Second operand 8 states and 687 transitions. [2021-06-13 07:32:02,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 158 transitions, 1169 flow [2021-06-13 07:32:02,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 158 transitions, 856 flow, removed 114 selfloop flow, removed 11 redundant places. [2021-06-13 07:32:02,871 INFO L241 Difference]: Finished difference. Result has 150 places, 150 transitions, 793 flow [2021-06-13 07:32:02,872 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=793, PETRI_PLACES=150, PETRI_TRANSITIONS=150} [2021-06-13 07:32:02,872 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 58 predicate places. [2021-06-13 07:32:02,872 INFO L482 AbstractCegarLoop]: Abstraction has has 150 places, 150 transitions, 793 flow [2021-06-13 07:32:02,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 84.57142857142857) internal successors, (592), 7 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:02,872 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:02,873 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:02,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-13 07:32:02,873 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:02,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:02,873 INFO L82 PathProgramCache]: Analyzing trace with hash -767132964, now seen corresponding path program 2 times [2021-06-13 07:32:02,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:02,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765044515] [2021-06-13 07:32:02,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:02,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:02,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:02,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:02,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:02,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:02,944 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:32:02,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:32:02,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:32:02,970 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:32:02,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:02,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:02,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:02,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:02,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:02,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765044515] [2021-06-13 07:32:02,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765044515] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:02,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:02,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-13 07:32:02,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500492835] [2021-06-13 07:32:02,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 07:32:02,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:02,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 07:32:02,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-13 07:32:02,982 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-06-13 07:32:02,983 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 150 transitions, 793 flow. Second operand has 9 states, 9 states have (on average 84.11111111111111) internal successors, (757), 9 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:02,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:02,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-06-13 07:32:02,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:03,696 INFO L129 PetriNetUnfolder]: 1473/3050 cut-off events. [2021-06-13 07:32:03,696 INFO L130 PetriNetUnfolder]: For 6069/7730 co-relation queries the response was YES. [2021-06-13 07:32:03,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10957 conditions, 3050 events. 1473/3050 cut-off events. For 6069/7730 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 26449 event pairs, 1 based on Foata normal form. 338/3125 useless extension candidates. Maximal degree in co-relation 10926. Up to 468 conditions per place. [2021-06-13 07:32:03,721 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 22 selfloop transitions, 63 changer transitions 26/185 dead transitions. [2021-06-13 07:32:03,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 185 transitions, 1254 flow [2021-06-13 07:32:03,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 07:32:03,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-13 07:32:03,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1659 transitions. [2021-06-13 07:32:03,724 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8909774436090225 [2021-06-13 07:32:03,724 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1659 transitions. [2021-06-13 07:32:03,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1659 transitions. [2021-06-13 07:32:03,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:03,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1659 transitions. [2021-06-13 07:32:03,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 87.3157894736842) internal successors, (1659), 19 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:03,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 98.0) internal successors, (1960), 20 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:03,733 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 98.0) internal successors, (1960), 20 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:03,733 INFO L185 Difference]: Start difference. First operand has 150 places, 150 transitions, 793 flow. Second operand 19 states and 1659 transitions. [2021-06-13 07:32:03,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 185 transitions, 1254 flow [2021-06-13 07:32:03,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 185 transitions, 1225 flow, removed 8 selfloop flow, removed 7 redundant places. [2021-06-13 07:32:03,797 INFO L241 Difference]: Finished difference. Result has 165 places, 149 transitions, 935 flow [2021-06-13 07:32:03,797 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=935, PETRI_PLACES=165, PETRI_TRANSITIONS=149} [2021-06-13 07:32:03,798 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 73 predicate places. [2021-06-13 07:32:03,798 INFO L482 AbstractCegarLoop]: Abstraction has has 165 places, 149 transitions, 935 flow [2021-06-13 07:32:03,798 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 84.11111111111111) internal successors, (757), 9 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:03,798 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:03,800 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:03,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-13 07:32:03,800 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:03,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:03,800 INFO L82 PathProgramCache]: Analyzing trace with hash -2105243001, now seen corresponding path program 1 times [2021-06-13 07:32:03,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:03,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964178083] [2021-06-13 07:32:03,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:03,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:03,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:03,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:03,848 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:32:03,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:32:03,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:03,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:03,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:03,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:03,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:03,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964178083] [2021-06-13 07:32:03,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964178083] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:03,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:03,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:32:03,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585876209] [2021-06-13 07:32:03,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:32:03,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:03,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:32:03,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:32:03,882 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-06-13 07:32:03,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 149 transitions, 935 flow. Second operand has 7 states, 7 states have (on average 84.57142857142857) internal successors, (592), 7 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:03,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:03,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-06-13 07:32:03,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:04,237 INFO L129 PetriNetUnfolder]: 1033/2818 cut-off events. [2021-06-13 07:32:04,238 INFO L130 PetriNetUnfolder]: For 7796/8088 co-relation queries the response was YES. [2021-06-13 07:32:04,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9611 conditions, 2818 events. 1033/2818 cut-off events. For 7796/8088 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 28278 event pairs, 1 based on Foata normal form. 4/2643 useless extension candidates. Maximal degree in co-relation 9542. Up to 351 conditions per place. [2021-06-13 07:32:04,260 INFO L132 encePairwiseOnDemand]: 92/98 looper letters, 0 selfloop transitions, 0 changer transitions 149/149 dead transitions. [2021-06-13 07:32:04,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 149 transitions, 980 flow [2021-06-13 07:32:04,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 07:32:04,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 07:32:04,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 594 transitions. [2021-06-13 07:32:04,261 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8658892128279884 [2021-06-13 07:32:04,261 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 594 transitions. [2021-06-13 07:32:04,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 594 transitions. [2021-06-13 07:32:04,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:04,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 594 transitions. [2021-06-13 07:32:04,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 84.85714285714286) internal successors, (594), 7 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:04,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:04,271 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:04,271 INFO L185 Difference]: Start difference. First operand has 165 places, 149 transitions, 935 flow. Second operand 7 states and 594 transitions. [2021-06-13 07:32:04,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 149 transitions, 980 flow [2021-06-13 07:32:04,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 149 transitions, 840 flow, removed 22 selfloop flow, removed 17 redundant places. [2021-06-13 07:32:04,392 INFO L241 Difference]: Finished difference. Result has 149 places, 0 transitions, 0 flow [2021-06-13 07:32:04,392 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=149, PETRI_TRANSITIONS=0} [2021-06-13 07:32:04,393 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 57 predicate places. [2021-06-13 07:32:04,393 INFO L482 AbstractCegarLoop]: Abstraction has has 149 places, 0 transitions, 0 flow [2021-06-13 07:32:04,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 84.57142857142857) internal successors, (592), 7 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:04,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-13 07:32:04,395 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 07:32:04,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 07:32:04 BasicIcfg [2021-06-13 07:32:04,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 07:32:04,397 INFO L168 Benchmark]: Toolchain (without parser) took 9063.30 ms. Allocated memory was 176.2 MB in the beginning and 597.7 MB in the end (delta: 421.5 MB). Free memory was 138.9 MB in the beginning and 369.9 MB in the end (delta: -231.1 MB). Peak memory consumption was 191.0 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:04,399 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 176.2 MB. Free memory is still 156.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 07:32:04,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.00 ms. Allocated memory is still 176.2 MB. Free memory was 138.7 MB in the beginning and 137.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:04,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.12 ms. Allocated memory is still 176.2 MB. Free memory was 137.2 MB in the beginning and 135.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:04,399 INFO L168 Benchmark]: Boogie Preprocessor took 18.59 ms. Allocated memory is still 176.2 MB. Free memory was 135.1 MB in the beginning and 133.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:04,399 INFO L168 Benchmark]: RCFGBuilder took 435.27 ms. Allocated memory is still 176.2 MB. Free memory was 133.6 MB in the beginning and 107.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:04,400 INFO L168 Benchmark]: TraceAbstraction took 8038.39 ms. Allocated memory was 176.2 MB in the beginning and 597.7 MB in the end (delta: 421.5 MB). Free memory was 107.4 MB in the beginning and 369.9 MB in the end (delta: -262.6 MB). Peak memory consumption was 160.0 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:04,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 176.2 MB. Free memory is still 156.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 514.00 ms. Allocated memory is still 176.2 MB. Free memory was 138.7 MB in the beginning and 137.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.12 ms. Allocated memory is still 176.2 MB. Free memory was 137.2 MB in the beginning and 135.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.59 ms. Allocated memory is still 176.2 MB. Free memory was 135.1 MB in the beginning and 133.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 435.27 ms. Allocated memory is still 176.2 MB. Free memory was 133.6 MB in the beginning and 107.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8038.39 ms. Allocated memory was 176.2 MB in the beginning and 597.7 MB in the end (delta: 421.5 MB). Free memory was 107.4 MB in the beginning and 369.9 MB in the end (delta: -262.6 MB). Peak memory consumption was 160.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 127 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 22.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 7942.9ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5883.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 70.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 202 SDtfs, 489 SDslu, 682 SDs, 0 SdLazy, 745 SolverSat, 183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 724.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 2097.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1087occurred in iteration=10, InterpolantAutomatonStates: 146, 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: 44.4ms SsaConstructionTime, 281.3ms SatisfiabilityAnalysisTime, 1411.6ms InterpolantComputationTime, 816 NumberOfCodeBlocks, 816 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 3183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...