/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 11:23:35,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 11:23:35,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 11:23:36,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 11:23:36,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 11:23:36,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 11:23:36,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 11:23:36,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 11:23:36,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 11:23:36,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 11:23:36,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 11:23:36,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 11:23:36,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 11:23:36,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 11:23:36,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 11:23:36,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 11:23:36,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 11:23:36,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 11:23:36,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 11:23:36,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 11:23:36,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 11:23:36,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 11:23:36,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 11:23:36,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 11:23:36,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 11:23:36,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 11:23:36,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 11:23:36,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 11:23:36,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 11:23:36,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 11:23:36,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 11:23:36,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 11:23:36,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 11:23:36,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 11:23:36,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 11:23:36,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 11:23:36,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 11:23:36,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 11:23:36,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 11:23:36,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 11:23:36,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 11:23:36,072 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-FA-SemanticLbe.epf [2021-03-11 11:23:36,099 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 11:23:36,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 11:23:36,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 11:23:36,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 11:23:36,102 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 11:23:36,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 11:23:36,102 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 11:23:36,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 11:23:36,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 11:23:36,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 11:23:36,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 11:23:36,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 11:23:36,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 11:23:36,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 11:23:36,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 11:23:36,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 11:23:36,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 11:23:36,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 11:23:36,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 11:23:36,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 11:23:36,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 11:23:36,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 11:23:36,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 11:23:36,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 11:23:36,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 11:23:36,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 11:23:36,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 11:23:36,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 11:23:36,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 11:23:36,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 11:23:36,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 11:23:36,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 11:23:36,363 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 11:23:36,363 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 11:23:36,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-03-11 11:23:36,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded465065/4e83a71d53fa4c16ab4d76c01e8b965e/FLAGece21fc7b [2021-03-11 11:23:37,147 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 11:23:37,147 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-03-11 11:23:37,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded465065/4e83a71d53fa4c16ab4d76c01e8b965e/FLAGece21fc7b [2021-03-11 11:23:37,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded465065/4e83a71d53fa4c16ab4d76c01e8b965e [2021-03-11 11:23:37,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 11:23:37,447 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 11:23:37,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 11:23:37,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 11:23:37,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 11:23:37,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 11:23:37" (1/1) ... [2021-03-11 11:23:37,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b37280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37, skipping insertion in model container [2021-03-11 11:23:37,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 11:23:37" (1/1) ... [2021-03-11 11:23:37,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 11:23:37,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 11:23:37,578 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i[950,963] [2021-03-11 11:23:37,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 11:23:37,695 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 11:23:37,702 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i[950,963] [2021-03-11 11:23:37,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 11:23:37,765 INFO L208 MainTranslator]: Completed translation [2021-03-11 11:23:37,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37 WrapperNode [2021-03-11 11:23:37,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 11:23:37,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 11:23:37,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 11:23:37,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 11:23:37,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37" (1/1) ... [2021-03-11 11:23:37,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37" (1/1) ... [2021-03-11 11:23:37,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 11:23:37,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 11:23:37,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 11:23:37,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 11:23:37,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37" (1/1) ... [2021-03-11 11:23:37,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37" (1/1) ... [2021-03-11 11:23:37,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37" (1/1) ... [2021-03-11 11:23:37,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37" (1/1) ... [2021-03-11 11:23:37,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37" (1/1) ... [2021-03-11 11:23:37,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37" (1/1) ... [2021-03-11 11:23:37,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37" (1/1) ... [2021-03-11 11:23:37,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 11:23:37,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 11:23:37,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 11:23:37,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 11:23:37,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 11:23:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 11:23:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 11:23:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 11:23:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 11:23:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 11:23:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 11:23:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 11:23:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 11:23:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 11:23:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 11:23:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-11 11:23:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-11 11:23:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 11:23:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 11:23:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 11:23:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 11:23:37,891 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 11:23:38,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 11:23:38,228 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 11:23:38,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 11:23:38 BoogieIcfgContainer [2021-03-11 11:23:38,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 11:23:38,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 11:23:38,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 11:23:38,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 11:23:38,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 11:23:37" (1/3) ... [2021-03-11 11:23:38,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc110a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 11:23:38, skipping insertion in model container [2021-03-11 11:23:38,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:23:37" (2/3) ... [2021-03-11 11:23:38,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc110a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 11:23:38, skipping insertion in model container [2021-03-11 11:23:38,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 11:23:38" (3/3) ... [2021-03-11 11:23:38,235 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2021-03-11 11:23:38,239 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 11:23:38,239 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 11:23:38,244 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 11:23:38,245 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 11:23:38,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,273 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,273 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,275 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,275 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,275 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,275 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,279 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,279 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,279 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,279 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,280 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,280 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,280 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,280 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,280 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,280 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,281 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,281 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,281 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,281 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,281 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,281 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,281 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,281 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,281 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,282 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,282 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,282 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,282 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,282 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,283 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,284 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,284 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,284 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,288 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,288 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,288 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,288 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,293 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,294 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:23:38,296 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 11:23:38,307 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 11:23:38,319 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 11:23:38,319 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 11:23:38,319 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 11:23:38,319 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 11:23:38,319 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 11:23:38,319 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 11:23:38,320 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 11:23:38,320 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 11:23:38,329 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 11:23:38,343 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2021-03-11 11:23:38,345 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 86 transitions, 192 flow [2021-03-11 11:23:38,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-03-11 11:23:38,375 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-11 11:23:38,375 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 11:23:38,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-11 11:23:38,379 INFO L116 LiptonReduction]: Number of co-enabled transitions 1866 [2021-03-11 11:23:40,209 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-11 11:23:40,409 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-11 11:23:40,544 INFO L131 LiptonReduction]: Checked pairs total: 3367 [2021-03-11 11:23:40,544 INFO L133 LiptonReduction]: Total number of compositions: 69 [2021-03-11 11:23:40,550 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2021-03-11 11:23:40,581 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 850 states, 848 states have (on average 3.7004716981132075) internal successors, (3138), 849 states have internal predecessors, (3138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:40,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 850 states, 848 states have (on average 3.7004716981132075) internal successors, (3138), 849 states have internal predecessors, (3138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:40,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 11:23:40,588 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:40,589 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:40,589 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:40,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:40,592 INFO L82 PathProgramCache]: Analyzing trace with hash -213736163, now seen corresponding path program 1 times [2021-03-11 11:23:40,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:40,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658776349] [2021-03-11 11:23:40,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:40,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:40,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:23:40,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:40,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:23:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:40,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658776349] [2021-03-11 11:23:40,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:40,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 11:23:40,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019528724] [2021-03-11 11:23:40,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 11:23:40,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:40,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 11:23:40,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 11:23:40,732 INFO L87 Difference]: Start difference. First operand has 850 states, 848 states have (on average 3.7004716981132075) internal successors, (3138), 849 states have internal predecessors, (3138), 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:40,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:40,764 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2021-03-11 11:23:40,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 11:23:40,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) Word has length 10 [2021-03-11 11:23:40,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:40,784 INFO L225 Difference]: With dead ends: 850 [2021-03-11 11:23:40,784 INFO L226 Difference]: Without dead ends: 706 [2021-03-11 11:23:40,785 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 11:23:40,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-03-11 11:23:40,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2021-03-11 11:23:40,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 705 states have (on average 3.4638297872340424) internal successors, (2442), 705 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:40,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2021-03-11 11:23:40,852 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2021-03-11 11:23:40,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:40,853 INFO L480 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2021-03-11 11:23:40,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:40,853 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2021-03-11 11:23:40,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-03-11 11:23:40,854 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:40,854 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:40,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 11:23:40,855 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:40,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:40,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1964100159, now seen corresponding path program 1 times [2021-03-11 11:23:40,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:40,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587788450] [2021-03-11 11:23:40,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:40,946 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:23:40,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:23:40,957 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-11 11:23:40,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 11:23:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:40,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587788450] [2021-03-11 11:23:40,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:40,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 11:23:40,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828684869] [2021-03-11 11:23:40,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 11:23:40,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:40,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 11:23:40,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 11:23:40,966 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:41,013 INFO L93 Difference]: Finished difference Result 1210 states and 3960 transitions. [2021-03-11 11:23:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 11:23:41,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) Word has length 11 [2021-03-11 11:23:41,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:41,017 INFO L225 Difference]: With dead ends: 1210 [2021-03-11 11:23:41,017 INFO L226 Difference]: Without dead ends: 952 [2021-03-11 11:23:41,018 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:23:41,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2021-03-11 11:23:41,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 820. [2021-03-11 11:23:41,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 819 states have (on average 3.3675213675213675) internal successors, (2758), 819 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 2758 transitions. [2021-03-11 11:23:41,044 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 2758 transitions. Word has length 11 [2021-03-11 11:23:41,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:41,044 INFO L480 AbstractCegarLoop]: Abstraction has 820 states and 2758 transitions. [2021-03-11 11:23:41,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,044 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 2758 transitions. [2021-03-11 11:23:41,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-03-11 11:23:41,049 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:41,050 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:41,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 11:23:41,050 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:41,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:41,051 INFO L82 PathProgramCache]: Analyzing trace with hash -187295100, now seen corresponding path program 1 times [2021-03-11 11:23:41,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:41,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552201704] [2021-03-11 11:23:41,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:41,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,117 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:23:41,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:23:41,124 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 11:23:41,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 11:23:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:41,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552201704] [2021-03-11 11:23:41,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:41,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 11:23:41,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042001824] [2021-03-11 11:23:41,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:23:41,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:41,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:23:41,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:23:41,137 INFO L87 Difference]: Start difference. First operand 820 states and 2758 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:41,187 INFO L93 Difference]: Finished difference Result 1063 states and 3376 transitions. [2021-03-11 11:23:41,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 11:23:41,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) Word has length 12 [2021-03-11 11:23:41,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:41,191 INFO L225 Difference]: With dead ends: 1063 [2021-03-11 11:23:41,191 INFO L226 Difference]: Without dead ends: 862 [2021-03-11 11:23:41,191 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 37.5ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-11 11:23:41,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2021-03-11 11:23:41,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 766. [2021-03-11 11:23:41,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 765 states have (on average 3.30718954248366) internal successors, (2530), 765 states have internal predecessors, (2530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 2530 transitions. [2021-03-11 11:23:41,213 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 2530 transitions. Word has length 12 [2021-03-11 11:23:41,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:41,213 INFO L480 AbstractCegarLoop]: Abstraction has 766 states and 2530 transitions. [2021-03-11 11:23:41,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,213 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 2530 transitions. [2021-03-11 11:23:41,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-03-11 11:23:41,214 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:41,214 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:41,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 11:23:41,215 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:41,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:41,216 INFO L82 PathProgramCache]: Analyzing trace with hash 756312598, now seen corresponding path program 1 times [2021-03-11 11:23:41,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:41,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643956146] [2021-03-11 11:23:41,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:41,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,259 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:23:41,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:23:41,266 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 11:23:41,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 11:23:41,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:41,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643956146] [2021-03-11 11:23:41,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:41,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 11:23:41,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040848566] [2021-03-11 11:23:41,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:23:41,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:41,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:23:41,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:23:41,280 INFO L87 Difference]: Start difference. First operand 766 states and 2530 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:41,315 INFO L93 Difference]: Finished difference Result 922 states and 2910 transitions. [2021-03-11 11:23:41,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 11:23:41,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) Word has length 12 [2021-03-11 11:23:41,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:41,318 INFO L225 Difference]: With dead ends: 922 [2021-03-11 11:23:41,318 INFO L226 Difference]: Without dead ends: 790 [2021-03-11 11:23:41,319 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 31.5ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-11 11:23:41,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2021-03-11 11:23:41,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 694. [2021-03-11 11:23:41,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 3.2698412698412698) internal successors, (2266), 693 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 2266 transitions. [2021-03-11 11:23:41,351 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 2266 transitions. Word has length 12 [2021-03-11 11:23:41,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:41,351 INFO L480 AbstractCegarLoop]: Abstraction has 694 states and 2266 transitions. [2021-03-11 11:23:41,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,351 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 2266 transitions. [2021-03-11 11:23:41,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-03-11 11:23:41,352 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:41,352 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:41,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 11:23:41,352 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:41,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:41,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1512430991, now seen corresponding path program 1 times [2021-03-11 11:23:41,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:41,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206941783] [2021-03-11 11:23:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:41,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,423 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:23:41,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:23:41,431 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 11:23:41,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 11:23:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:41,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206941783] [2021-03-11 11:23:41,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:41,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 11:23:41,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262231686] [2021-03-11 11:23:41,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 11:23:41,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:41,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 11:23:41,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-11 11:23:41,446 INFO L87 Difference]: Start difference. First operand 694 states and 2266 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:41,492 INFO L93 Difference]: Finished difference Result 1066 states and 3408 transitions. [2021-03-11 11:23:41,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 11:23:41,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) Word has length 13 [2021-03-11 11:23:41,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:41,495 INFO L225 Difference]: With dead ends: 1066 [2021-03-11 11:23:41,495 INFO L226 Difference]: Without dead ends: 598 [2021-03-11 11:23:41,497 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 29.9ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-03-11 11:23:41,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2021-03-11 11:23:41,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 526. [2021-03-11 11:23:41,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 3.241904761904762) internal successors, (1702), 525 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1702 transitions. [2021-03-11 11:23:41,508 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1702 transitions. Word has length 13 [2021-03-11 11:23:41,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:41,508 INFO L480 AbstractCegarLoop]: Abstraction has 526 states and 1702 transitions. [2021-03-11 11:23:41,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,509 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1702 transitions. [2021-03-11 11:23:41,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-03-11 11:23:41,509 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:41,510 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:41,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 11:23:41,510 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:41,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:41,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1969663453, now seen corresponding path program 2 times [2021-03-11 11:23:41,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:41,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537302024] [2021-03-11 11:23:41,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:41,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,555 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-11 11:23:41,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 11:23:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:41,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537302024] [2021-03-11 11:23:41,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:41,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 11:23:41,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122278401] [2021-03-11 11:23:41,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 11:23:41,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:41,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 11:23:41,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 11:23:41,563 INFO L87 Difference]: Start difference. First operand 526 states and 1702 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:41,578 INFO L93 Difference]: Finished difference Result 562 states and 1768 transitions. [2021-03-11 11:23:41,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 11:23:41,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) Word has length 13 [2021-03-11 11:23:41,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:41,581 INFO L225 Difference]: With dead ends: 562 [2021-03-11 11:23:41,581 INFO L226 Difference]: Without dead ends: 490 [2021-03-11 11:23:41,581 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:23:41,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-03-11 11:23:41,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2021-03-11 11:23:41,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 3.198364008179959) internal successors, (1564), 489 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 1564 transitions. [2021-03-11 11:23:41,590 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 1564 transitions. Word has length 13 [2021-03-11 11:23:41,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:41,590 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 1564 transitions. [2021-03-11 11:23:41,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,591 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 1564 transitions. [2021-03-11 11:23:41,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-03-11 11:23:41,591 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:41,591 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:41,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 11:23:41,591 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:41,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:41,592 INFO L82 PathProgramCache]: Analyzing trace with hash 284822295, now seen corresponding path program 1 times [2021-03-11 11:23:41,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:41,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210986231] [2021-03-11 11:23:41,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:41,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,638 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 11:23:41,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 11:23:41,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:41,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210986231] [2021-03-11 11:23:41,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:41,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 11:23:41,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906353249] [2021-03-11 11:23:41,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:23:41,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:41,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:23:41,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:23:41,656 INFO L87 Difference]: Start difference. First operand 490 states and 1564 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:41,692 INFO L93 Difference]: Finished difference Result 698 states and 2160 transitions. [2021-03-11 11:23:41,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 11:23:41,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) Word has length 14 [2021-03-11 11:23:41,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:41,694 INFO L225 Difference]: With dead ends: 698 [2021-03-11 11:23:41,694 INFO L226 Difference]: Without dead ends: 350 [2021-03-11 11:23:41,695 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 31.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-11 11:23:41,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-03-11 11:23:41,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2021-03-11 11:23:41,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 349 states have (on average 3.0) internal successors, (1047), 349 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 1047 transitions. [2021-03-11 11:23:41,701 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 1047 transitions. Word has length 14 [2021-03-11 11:23:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:41,702 INFO L480 AbstractCegarLoop]: Abstraction has 350 states and 1047 transitions. [2021-03-11 11:23:41,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 1047 transitions. [2021-03-11 11:23:41,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-03-11 11:23:41,702 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:41,702 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:41,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 11:23:41,703 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:41,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:41,703 INFO L82 PathProgramCache]: Analyzing trace with hash -951102096, now seen corresponding path program 1 times [2021-03-11 11:23:41,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:41,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426449502] [2021-03-11 11:23:41,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:41,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 11:23:41,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:23:41,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:41,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426449502] [2021-03-11 11:23:41,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:41,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 11:23:41,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483634134] [2021-03-11 11:23:41,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 11:23:41,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:41,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 11:23:41,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 11:23:41,757 INFO L87 Difference]: Start difference. First operand 350 states and 1047 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:41,779 INFO L93 Difference]: Finished difference Result 420 states and 1165 transitions. [2021-03-11 11:23:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 11:23:41,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) Word has length 15 [2021-03-11 11:23:41,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:41,781 INFO L225 Difference]: With dead ends: 420 [2021-03-11 11:23:41,781 INFO L226 Difference]: Without dead ends: 319 [2021-03-11 11:23:41,782 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:23:41,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-03-11 11:23:41,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2021-03-11 11:23:41,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 318 states have (on average 2.830188679245283) internal successors, (900), 318 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 900 transitions. [2021-03-11 11:23:41,792 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 900 transitions. Word has length 15 [2021-03-11 11:23:41,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:41,793 INFO L480 AbstractCegarLoop]: Abstraction has 319 states and 900 transitions. [2021-03-11 11:23:41,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,793 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 900 transitions. [2021-03-11 11:23:41,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-03-11 11:23:41,793 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:41,793 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:41,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 11:23:41,794 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:41,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:41,794 INFO L82 PathProgramCache]: Analyzing trace with hash -938587262, now seen corresponding path program 1 times [2021-03-11 11:23:41,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:41,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612061340] [2021-03-11 11:23:41,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:41,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 11:23:41,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:23:41,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:41,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612061340] [2021-03-11 11:23:41,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:41,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 11:23:41,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560431283] [2021-03-11 11:23:41,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:23:41,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:41,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:23:41,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:23:41,832 INFO L87 Difference]: Start difference. First operand 319 states and 900 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:41,860 INFO L93 Difference]: Finished difference Result 327 states and 831 transitions. [2021-03-11 11:23:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 11:23:41,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) Word has length 16 [2021-03-11 11:23:41,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:41,862 INFO L225 Difference]: With dead ends: 327 [2021-03-11 11:23:41,862 INFO L226 Difference]: Without dead ends: 245 [2021-03-11 11:23:41,862 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-11 11:23:41,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-03-11 11:23:41,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2021-03-11 11:23:41,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 244 states have (on average 2.512295081967213) internal successors, (613), 244 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 613 transitions. [2021-03-11 11:23:41,867 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 613 transitions. Word has length 16 [2021-03-11 11:23:41,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:41,867 INFO L480 AbstractCegarLoop]: Abstraction has 245 states and 613 transitions. [2021-03-11 11:23:41,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,869 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 613 transitions. [2021-03-11 11:23:41,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-03-11 11:23:41,869 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:41,870 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:41,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 11:23:41,870 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:41,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:41,871 INFO L82 PathProgramCache]: Analyzing trace with hash 968328657, now seen corresponding path program 1 times [2021-03-11 11:23:41,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:41,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247587122] [2021-03-11 11:23:41,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:41,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:41,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 11:23:41,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:41,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:23:41,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:41,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247587122] [2021-03-11 11:23:41,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:41,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 11:23:41,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083354360] [2021-03-11 11:23:41,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 11:23:41,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:41,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 11:23:41,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-11 11:23:41,927 INFO L87 Difference]: Start difference. First operand 245 states and 613 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:41,968 INFO L93 Difference]: Finished difference Result 222 states and 520 transitions. [2021-03-11 11:23:41,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 11:23:41,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) Word has length 17 [2021-03-11 11:23:41,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:41,969 INFO L225 Difference]: With dead ends: 222 [2021-03-11 11:23:41,969 INFO L226 Difference]: Without dead ends: 180 [2021-03-11 11:23:41,970 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.6ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-03-11 11:23:41,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-03-11 11:23:41,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-03-11 11:23:41,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.357541899441341) internal successors, (422), 179 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 422 transitions. [2021-03-11 11:23:41,973 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 422 transitions. Word has length 17 [2021-03-11 11:23:41,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:41,974 INFO L480 AbstractCegarLoop]: Abstraction has 180 states and 422 transitions. [2021-03-11 11:23:41,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:41,974 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 422 transitions. [2021-03-11 11:23:41,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 11:23:41,974 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:41,974 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:41,974 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 11:23:41,975 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:41,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:41,975 INFO L82 PathProgramCache]: Analyzing trace with hash 877133856, now seen corresponding path program 1 times [2021-03-11 11:23:41,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:41,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966867234] [2021-03-11 11:23:41,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:42,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:23:42,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:42,010 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:23:42,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:23:42,022 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 11:23:42,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 11:23:42,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:42,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966867234] [2021-03-11 11:23:42,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:42,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 11:23:42,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649280714] [2021-03-11 11:23:42,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:23:42,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:42,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:23:42,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:23:42,039 INFO L87 Difference]: Start difference. First operand 180 states and 422 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:42,085 INFO L93 Difference]: Finished difference Result 241 states and 537 transitions. [2021-03-11 11:23:42,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 11:23:42,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) Word has length 19 [2021-03-11 11:23:42,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:42,086 INFO L225 Difference]: With dead ends: 241 [2021-03-11 11:23:42,086 INFO L226 Difference]: Without dead ends: 189 [2021-03-11 11:23:42,086 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 44.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-11 11:23:42,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-03-11 11:23:42,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 165. [2021-03-11 11:23:42,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 2.2378048780487805) internal successors, (367), 164 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 367 transitions. [2021-03-11 11:23:42,091 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 367 transitions. Word has length 19 [2021-03-11 11:23:42,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:42,091 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 367 transitions. [2021-03-11 11:23:42,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,091 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 367 transitions. [2021-03-11 11:23:42,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 11:23:42,092 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:42,092 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:42,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 11:23:42,092 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:42,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:42,092 INFO L82 PathProgramCache]: Analyzing trace with hash -511207899, now seen corresponding path program 1 times [2021-03-11 11:23:42,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:42,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945020606] [2021-03-11 11:23:42,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:42,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:23:42,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:42,117 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:23:42,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:23:42,127 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 11:23:42,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 11:23:42,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:42,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945020606] [2021-03-11 11:23:42,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:42,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 11:23:42,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608268464] [2021-03-11 11:23:42,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:23:42,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:42,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:23:42,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:23:42,142 INFO L87 Difference]: Start difference. First operand 165 states and 367 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:42,161 INFO L93 Difference]: Finished difference Result 190 states and 409 transitions. [2021-03-11 11:23:42,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 11:23:42,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) Word has length 19 [2021-03-11 11:23:42,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:42,162 INFO L225 Difference]: With dead ends: 190 [2021-03-11 11:23:42,163 INFO L226 Difference]: Without dead ends: 165 [2021-03-11 11:23:42,163 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 24.1ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-11 11:23:42,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-03-11 11:23:42,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 161. [2021-03-11 11:23:42,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 2.20625) internal successors, (353), 160 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 353 transitions. [2021-03-11 11:23:42,166 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 353 transitions. Word has length 19 [2021-03-11 11:23:42,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:42,166 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 353 transitions. [2021-03-11 11:23:42,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,166 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 353 transitions. [2021-03-11 11:23:42,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 11:23:42,167 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:42,167 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:42,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 11:23:42,167 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:42,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:42,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1274573537, now seen corresponding path program 2 times [2021-03-11 11:23:42,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:42,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005666474] [2021-03-11 11:23:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:42,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:42,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:42,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:42,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:42,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 11:23:42,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:23:42,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:42,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005666474] [2021-03-11 11:23:42,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:42,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 11:23:42,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493748739] [2021-03-11 11:23:42,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 11:23:42,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:42,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 11:23:42,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 11:23:42,232 INFO L87 Difference]: Start difference. First operand 161 states and 353 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:42,270 INFO L93 Difference]: Finished difference Result 150 states and 329 transitions. [2021-03-11 11:23:42,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 11:23:42,271 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) Word has length 19 [2021-03-11 11:23:42,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:42,271 INFO L225 Difference]: With dead ends: 150 [2021-03-11 11:23:42,271 INFO L226 Difference]: Without dead ends: 92 [2021-03-11 11:23:42,272 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.0ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-03-11 11:23:42,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-03-11 11:23:42,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-03-11 11:23:42,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 2.241758241758242) internal successors, (204), 91 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 204 transitions. [2021-03-11 11:23:42,274 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 204 transitions. Word has length 19 [2021-03-11 11:23:42,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:42,274 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 204 transitions. [2021-03-11 11:23:42,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,274 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 204 transitions. [2021-03-11 11:23:42,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-03-11 11:23:42,274 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:23:42,274 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:23:42,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 11:23:42,274 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:23:42,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:23:42,275 INFO L82 PathProgramCache]: Analyzing trace with hash 552596660, now seen corresponding path program 1 times [2021-03-11 11:23:42,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:23:42,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826127813] [2021-03-11 11:23:42,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:23:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:23:42,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:23:42,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:42,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:23:42,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:23:42,306 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:23:42,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:23:42,314 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-11 11:23:42,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 11:23:42,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:23:42,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826127813] [2021-03-11 11:23:42,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:23:42,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 11:23:42,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180234553] [2021-03-11 11:23:42,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 11:23:42,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:23:42,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 11:23:42,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-11 11:23:42,329 INFO L87 Difference]: Start difference. First operand 92 states and 204 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:23:42,370 INFO L93 Difference]: Finished difference Result 91 states and 203 transitions. [2021-03-11 11:23:42,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 11:23:42,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) Word has length 21 [2021-03-11 11:23:42,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:23:42,370 INFO L225 Difference]: With dead ends: 91 [2021-03-11 11:23:42,370 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 11:23:42,371 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 42.8ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-03-11 11:23:42,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 11:23:42,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 11:23:42,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 11:23:42,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-03-11 11:23:42,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:23:42,371 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 11:23:42,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 11:23:42,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 11:23:42,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 11:23:42,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 11:23:42,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 11:23:42 BasicIcfg [2021-03-11 11:23:42,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 11:23:42,376 INFO L168 Benchmark]: Toolchain (without parser) took 4930.07 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 311.7 MB in the beginning and 163.1 MB in the end (delta: 148.7 MB). Peak memory consumption was 221.4 MB. Max. memory is 16.0 GB. [2021-03-11 11:23:42,377 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 348.1 MB. Free memory is still 329.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 11:23:42,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.79 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 311.1 MB in the end (delta: -28.1 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2021-03-11 11:23:42,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.60 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 309.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 11:23:42,379 INFO L168 Benchmark]: Boogie Preprocessor took 32.52 ms. Allocated memory is still 348.1 MB. Free memory was 309.0 MB in the beginning and 306.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 11:23:42,380 INFO L168 Benchmark]: RCFGBuilder took 383.85 ms. Allocated memory is still 348.1 MB. Free memory was 306.3 MB in the beginning and 280.7 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-11 11:23:42,381 INFO L168 Benchmark]: TraceAbstraction took 4143.05 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 280.7 MB in the beginning and 163.1 MB in the end (delta: 117.6 MB). Peak memory consumption was 191.0 MB. Max. memory is 16.0 GB. [2021-03-11 11:23:42,386 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 348.1 MB. Free memory is still 329.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 313.79 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 311.1 MB in the end (delta: -28.1 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.60 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 309.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.52 ms. Allocated memory is still 348.1 MB. Free memory was 309.0 MB in the beginning and 306.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 383.85 ms. Allocated memory is still 348.1 MB. Free memory was 306.3 MB in the beginning and 280.7 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4143.05 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 280.7 MB in the beginning and 163.1 MB in the end (delta: 117.6 MB). Peak memory consumption was 191.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2199.9ms, 97 PlacesBefore, 39 PlacesAfterwards, 86 TransitionsBefore, 27 TransitionsAfterwards, 1866 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 69 TotalNumberOfCompositions, 3367 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2341, positive: 2249, positive conditional: 0, positive unconditional: 2249, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1278, positive: 1248, positive conditional: 0, positive unconditional: 1248, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1278, positive: 1233, positive conditional: 0, positive unconditional: 1233, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 175, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 123, negative conditional: 0, negative unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2341, positive: 1001, positive conditional: 0, positive unconditional: 1001, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 1278, unknown conditional: 0, unknown unconditional: 1278] , Statistics on independence cache: Total cache size (in pairs): 126, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4054.3ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 20.0ms, AutomataDifference: 570.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2261.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 374 SDtfs, 444 SDslu, 667 SDs, 0 SdLazy, 310 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 188.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 338.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred in iteration=0, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 192.0ms AutomataMinimizationTime, 14 MinimizatonAttempts, 424 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.6ms SsaConstructionTime, 215.4ms SatisfiabilityAnalysisTime, 603.5ms InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 1070 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...