/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:08:58,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:08:58,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:08:58,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:08:58,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:08:58,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:08:58,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:08:58,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:08:58,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:08:58,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:08:58,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:08:58,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:08:58,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:08:58,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:08:58,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:08:58,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:08:58,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:08:58,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:08:58,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:08:58,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:08:58,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:08:58,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:08:58,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:08:58,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:08:58,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:08:58,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:08:58,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:08:58,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:08:58,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:08:58,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:08:58,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:08:58,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:08:58,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:08:58,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:08:58,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:08:58,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:08:58,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:08:58,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:08:58,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:08:58,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:08:58,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:08:58,143 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:08:58,182 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:08:58,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:08:58,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:08:58,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:08:58,184 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:08:58,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:08:58,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:08:58,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:08:58,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:08:58,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:08:58,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:08:58,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:08:58,187 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:08:58,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:08:58,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:08:58,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:08:58,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:08:58,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:08:58,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:08:58,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:08:58,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:08:58,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:08:58,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:08:58,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:08:58,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:08:58,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:08:58,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:08:58,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:08:58,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:08:58,586 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:08:58,586 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:08:58,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i [2020-12-22 11:08:58,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47f311cc/c0cc12b27e5645e795422021fd6185f8/FLAG88e477754 [2020-12-22 11:08:59,346 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:08:59,347 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i [2020-12-22 11:08:59,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47f311cc/c0cc12b27e5645e795422021fd6185f8/FLAG88e477754 [2020-12-22 11:08:59,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47f311cc/c0cc12b27e5645e795422021fd6185f8 [2020-12-22 11:08:59,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:08:59,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:08:59,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:08:59,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:08:59,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:08:59,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:08:59" (1/1) ... [2020-12-22 11:08:59,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629d54e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:08:59, skipping insertion in model container [2020-12-22 11:08:59,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:08:59" (1/1) ... [2020-12-22 11:08:59,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:08:59,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:08:59,942 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i[950,963] [2020-12-22 11:09:00,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:09:00,340 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:09:00,359 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i[950,963] [2020-12-22 11:09:00,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:09:00,591 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:09:00,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00 WrapperNode [2020-12-22 11:09:00,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:09:00,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:09:00,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:09:00,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:09:00,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00" (1/1) ... [2020-12-22 11:09:00,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00" (1/1) ... [2020-12-22 11:09:00,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:09:00,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:09:00,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:09:00,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:09:00,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00" (1/1) ... [2020-12-22 11:09:00,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00" (1/1) ... [2020-12-22 11:09:00,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00" (1/1) ... [2020-12-22 11:09:00,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00" (1/1) ... [2020-12-22 11:09:00,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00" (1/1) ... [2020-12-22 11:09:00,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00" (1/1) ... [2020-12-22 11:09:00,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00" (1/1) ... [2020-12-22 11:09:00,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:09:00,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:09:00,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:09:00,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:09:00,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00" (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 [2020-12-22 11:09:00,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:09:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:09:00,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:09:00,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:09:00,892 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:09:00,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:09:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:09:00,894 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:09:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:09:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:09:00,896 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-22 11:09:00,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-22 11:09:00,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:09:00,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:09:00,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:09:00,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:09:00,900 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:09:01,385 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:09:01,386 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:09:01,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:09:01 BoogieIcfgContainer [2020-12-22 11:09:01,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:09:01,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:09:01,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:09:01,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:09:01,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:08:59" (1/3) ... [2020-12-22 11:09:01,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28601e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:09:01, skipping insertion in model container [2020-12-22 11:09:01,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:00" (2/3) ... [2020-12-22 11:09:01,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28601e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:09:01, skipping insertion in model container [2020-12-22 11:09:01,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:09:01" (3/3) ... [2020-12-22 11:09:01,398 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2020-12-22 11:09:01,405 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:09:01,405 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:09:01,414 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:09:01,415 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:09:01,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,461 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,461 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,462 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,462 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,464 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,464 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,464 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,469 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,470 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,470 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,471 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,471 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,471 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,472 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,472 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,472 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,482 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,482 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,482 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,486 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,490 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,490 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:01,492 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:09:01,512 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-22 11:09:01,535 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:09:01,536 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:09:01,536 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:09:01,536 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:09:01,536 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:09:01,536 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:09:01,536 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:09:01,537 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:09:01,550 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:09:01,552 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 85 transitions, 190 flow [2020-12-22 11:09:01,556 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 85 transitions, 190 flow [2020-12-22 11:09:01,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 85 transitions, 190 flow [2020-12-22 11:09:01,630 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2020-12-22 11:09:01,630 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:09:01,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2020-12-22 11:09:01,647 INFO L116 LiptonReduction]: Number of co-enabled transitions 1866 [2020-12-22 11:09:04,279 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-22 11:09:04,439 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-22 11:09:04,886 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-22 11:09:05,208 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-22 11:09:05,371 INFO L131 LiptonReduction]: Checked pairs total: 3411 [2020-12-22 11:09:05,371 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-12-22 11:09:05,378 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-12-22 11:09:05,440 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-12-22 11:09:05,442 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-12-22 11:09:05,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:09:05,452 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:05,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:05,453 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:05,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:05,459 INFO L82 PathProgramCache]: Analyzing trace with hash -975438877, now seen corresponding path program 1 times [2020-12-22 11:09:05,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:05,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273395907] [2020-12-22 11:09:05,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:05,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:05,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273395907] [2020-12-22 11:09:05,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:05,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:09:05,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064770433] [2020-12-22 11:09:05,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:09:05,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:05,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:09:05,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:09:05,688 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-12-22 11:09:05,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:05,744 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-12-22 11:09:05,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:09:05,748 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-22 11:09:05,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:05,792 INFO L225 Difference]: With dead ends: 850 [2020-12-22 11:09:05,792 INFO L226 Difference]: Without dead ends: 706 [2020-12-22 11:09:05,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:09:05,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-12-22 11:09:05,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-12-22 11:09:05,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-12-22 11:09:05,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-12-22 11:09:05,967 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-12-22 11:09:05,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:05,968 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-12-22 11:09:05,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:09:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-12-22 11:09:05,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:09:05,974 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:05,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:05,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:09:05,975 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:05,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:05,976 INFO L82 PathProgramCache]: Analyzing trace with hash -173841252, now seen corresponding path program 1 times [2020-12-22 11:09:05,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:05,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480399334] [2020-12-22 11:09:05,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:06,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480399334] [2020-12-22 11:09:06,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:06,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:09:06,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313241447] [2020-12-22 11:09:06,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:09:06,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:06,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:09:06,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:09:06,211 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-12-22 11:09:06,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:06,344 INFO L93 Difference]: Finished difference Result 1412 states and 4631 transitions. [2020-12-22 11:09:06,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:09:06,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:09:06,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:06,358 INFO L225 Difference]: With dead ends: 1412 [2020-12-22 11:09:06,359 INFO L226 Difference]: Without dead ends: 1104 [2020-12-22 11:09:06,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:09:06,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2020-12-22 11:09:06,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 904. [2020-12-22 11:09:06,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-12-22 11:09:06,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 3004 transitions. [2020-12-22 11:09:06,433 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 3004 transitions. Word has length 11 [2020-12-22 11:09:06,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:06,434 INFO L481 AbstractCegarLoop]: Abstraction has 904 states and 3004 transitions. [2020-12-22 11:09:06,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:09:06,434 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 3004 transitions. [2020-12-22 11:09:06,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:09:06,443 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:06,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:06,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:09:06,444 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:06,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:06,445 INFO L82 PathProgramCache]: Analyzing trace with hash -892982348, now seen corresponding path program 1 times [2020-12-22 11:09:06,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:06,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323477588] [2020-12-22 11:09:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:06,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:06,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323477588] [2020-12-22 11:09:06,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:06,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:09:06,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122708299] [2020-12-22 11:09:06,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:09:06,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:06,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:09:06,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:09:06,579 INFO L87 Difference]: Start difference. First operand 904 states and 3004 transitions. Second operand 5 states. [2020-12-22 11:09:06,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:06,683 INFO L93 Difference]: Finished difference Result 1245 states and 3917 transitions. [2020-12-22 11:09:06,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:09:06,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:09:06,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:06,694 INFO L225 Difference]: With dead ends: 1245 [2020-12-22 11:09:06,694 INFO L226 Difference]: Without dead ends: 1014 [2020-12-22 11:09:06,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:09:06,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2020-12-22 11:09:06,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 830. [2020-12-22 11:09:06,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-12-22 11:09:06,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 2702 transitions. [2020-12-22 11:09:06,740 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 2702 transitions. Word has length 12 [2020-12-22 11:09:06,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:06,741 INFO L481 AbstractCegarLoop]: Abstraction has 830 states and 2702 transitions. [2020-12-22 11:09:06,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:09:06,741 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 2702 transitions. [2020-12-22 11:09:06,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:09:06,743 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:06,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:06,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:09:06,744 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:06,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:06,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1324654725, now seen corresponding path program 1 times [2020-12-22 11:09:06,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:06,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261405764] [2020-12-22 11:09:06,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:06,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:06,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261405764] [2020-12-22 11:09:06,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:06,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:09:06,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936113746] [2020-12-22 11:09:06,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:09:06,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:06,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:09:06,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:09:06,860 INFO L87 Difference]: Start difference. First operand 830 states and 2702 transitions. Second operand 5 states. [2020-12-22 11:09:06,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:06,944 INFO L93 Difference]: Finished difference Result 1078 states and 3372 transitions. [2020-12-22 11:09:06,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:09:06,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:09:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:06,954 INFO L225 Difference]: With dead ends: 1078 [2020-12-22 11:09:06,954 INFO L226 Difference]: Without dead ends: 934 [2020-12-22 11:09:06,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:09:06,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-12-22 11:09:06,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 750. [2020-12-22 11:09:06,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-12-22 11:09:06,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 2414 transitions. [2020-12-22 11:09:06,995 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 2414 transitions. Word has length 12 [2020-12-22 11:09:06,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:06,996 INFO L481 AbstractCegarLoop]: Abstraction has 750 states and 2414 transitions. [2020-12-22 11:09:06,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:09:06,996 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 2414 transitions. [2020-12-22 11:09:06,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:09:06,998 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:06,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:06,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:09:06,998 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:06,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:06,999 INFO L82 PathProgramCache]: Analyzing trace with hash -2143192221, now seen corresponding path program 1 times [2020-12-22 11:09:06,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:07,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329091492] [2020-12-22 11:09:07,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:07,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:07,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329091492] [2020-12-22 11:09:07,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:07,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:09:07,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649084524] [2020-12-22 11:09:07,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:09:07,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:07,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:09:07,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:09:07,057 INFO L87 Difference]: Start difference. First operand 750 states and 2414 transitions. Second operand 4 states. [2020-12-22 11:09:07,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:07,085 INFO L93 Difference]: Finished difference Result 794 states and 2496 transitions. [2020-12-22 11:09:07,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:09:07,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 11:09:07,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:07,092 INFO L225 Difference]: With dead ends: 794 [2020-12-22 11:09:07,092 INFO L226 Difference]: Without dead ends: 706 [2020-12-22 11:09:07,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:09:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-12-22 11:09:07,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 658. [2020-12-22 11:09:07,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-12-22 11:09:07,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2100 transitions. [2020-12-22 11:09:07,122 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2100 transitions. Word has length 13 [2020-12-22 11:09:07,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:07,123 INFO L481 AbstractCegarLoop]: Abstraction has 658 states and 2100 transitions. [2020-12-22 11:09:07,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:09:07,123 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2100 transitions. [2020-12-22 11:09:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:09:07,125 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:07,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:07,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:09:07,125 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:07,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:07,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1163230994, now seen corresponding path program 1 times [2020-12-22 11:09:07,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:07,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771046368] [2020-12-22 11:09:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:07,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:07,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771046368] [2020-12-22 11:09:07,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:07,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:09:07,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270496309] [2020-12-22 11:09:07,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:09:07,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:07,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:09:07,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:09:07,190 INFO L87 Difference]: Start difference. First operand 658 states and 2100 transitions. Second operand 5 states. [2020-12-22 11:09:07,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:07,250 INFO L93 Difference]: Finished difference Result 978 states and 3040 transitions. [2020-12-22 11:09:07,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:09:07,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-22 11:09:07,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:07,255 INFO L225 Difference]: With dead ends: 978 [2020-12-22 11:09:07,255 INFO L226 Difference]: Without dead ends: 498 [2020-12-22 11:09:07,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:09:07,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-12-22 11:09:07,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2020-12-22 11:09:07,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2020-12-22 11:09:07,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 1528 transitions. [2020-12-22 11:09:07,276 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 1528 transitions. Word has length 14 [2020-12-22 11:09:07,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:07,276 INFO L481 AbstractCegarLoop]: Abstraction has 498 states and 1528 transitions. [2020-12-22 11:09:07,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:09:07,276 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 1528 transitions. [2020-12-22 11:09:07,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:09:07,278 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:07,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:07,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:09:07,278 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:07,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:07,279 INFO L82 PathProgramCache]: Analyzing trace with hash -672340700, now seen corresponding path program 1 times [2020-12-22 11:09:07,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:07,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842193671] [2020-12-22 11:09:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:07,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:07,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842193671] [2020-12-22 11:09:07,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:07,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:09:07,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012317329] [2020-12-22 11:09:07,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:09:07,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:07,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:09:07,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:09:07,369 INFO L87 Difference]: Start difference. First operand 498 states and 1528 transitions. Second operand 5 states. [2020-12-22 11:09:07,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:07,447 INFO L93 Difference]: Finished difference Result 774 states and 2260 transitions. [2020-12-22 11:09:07,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:09:07,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 11:09:07,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:07,453 INFO L225 Difference]: With dead ends: 774 [2020-12-22 11:09:07,453 INFO L226 Difference]: Without dead ends: 602 [2020-12-22 11:09:07,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:09:07,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-12-22 11:09:07,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 442. [2020-12-22 11:09:07,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-12-22 11:09:07,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1320 transitions. [2020-12-22 11:09:07,476 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1320 transitions. Word has length 15 [2020-12-22 11:09:07,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:07,477 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 1320 transitions. [2020-12-22 11:09:07,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:09:07,477 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1320 transitions. [2020-12-22 11:09:07,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:09:07,480 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:07,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:07,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:09:07,482 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:07,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:07,485 INFO L82 PathProgramCache]: Analyzing trace with hash -671268224, now seen corresponding path program 1 times [2020-12-22 11:09:07,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:07,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556722613] [2020-12-22 11:09:07,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:07,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556722613] [2020-12-22 11:09:07,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:07,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:09:07,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767285770] [2020-12-22 11:09:07,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:09:07,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:07,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:09:07,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:09:07,570 INFO L87 Difference]: Start difference. First operand 442 states and 1320 transitions. Second operand 3 states. [2020-12-22 11:09:07,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:07,584 INFO L93 Difference]: Finished difference Result 400 states and 1123 transitions. [2020-12-22 11:09:07,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:09:07,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-22 11:09:07,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:07,588 INFO L225 Difference]: With dead ends: 400 [2020-12-22 11:09:07,589 INFO L226 Difference]: Without dead ends: 400 [2020-12-22 11:09:07,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:09:07,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-12-22 11:09:07,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2020-12-22 11:09:07,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-12-22 11:09:07,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 1123 transitions. [2020-12-22 11:09:07,604 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 1123 transitions. Word has length 15 [2020-12-22 11:09:07,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:07,604 INFO L481 AbstractCegarLoop]: Abstraction has 400 states and 1123 transitions. [2020-12-22 11:09:07,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:09:07,605 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 1123 transitions. [2020-12-22 11:09:07,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:09:07,606 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:07,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:07,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:09:07,607 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:07,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:07,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1195890947, now seen corresponding path program 1 times [2020-12-22 11:09:07,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:07,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036711183] [2020-12-22 11:09:07,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:07,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:07,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036711183] [2020-12-22 11:09:07,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:07,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:09:07,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671862774] [2020-12-22 11:09:07,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:09:07,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:07,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:09:07,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:09:07,656 INFO L87 Difference]: Start difference. First operand 400 states and 1123 transitions. Second operand 4 states. [2020-12-22 11:09:07,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:07,686 INFO L93 Difference]: Finished difference Result 309 states and 779 transitions. [2020-12-22 11:09:07,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:09:07,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-22 11:09:07,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:07,693 INFO L225 Difference]: With dead ends: 309 [2020-12-22 11:09:07,694 INFO L226 Difference]: Without dead ends: 309 [2020-12-22 11:09:07,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:09:07,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-12-22 11:09:07,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2020-12-22 11:09:07,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-12-22 11:09:07,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 779 transitions. [2020-12-22 11:09:07,706 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 779 transitions. Word has length 16 [2020-12-22 11:09:07,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:07,707 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 779 transitions. [2020-12-22 11:09:07,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:09:07,707 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 779 transitions. [2020-12-22 11:09:07,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:09:07,708 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:07,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:07,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:09:07,709 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:07,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:07,709 INFO L82 PathProgramCache]: Analyzing trace with hash 852842, now seen corresponding path program 1 times [2020-12-22 11:09:07,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:07,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945627875] [2020-12-22 11:09:07,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:07,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:07,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945627875] [2020-12-22 11:09:07,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:07,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:09:07,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108628781] [2020-12-22 11:09:07,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:09:07,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:07,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:09:07,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:09:07,779 INFO L87 Difference]: Start difference. First operand 309 states and 779 transitions. Second operand 5 states. [2020-12-22 11:09:07,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:07,813 INFO L93 Difference]: Finished difference Result 236 states and 571 transitions. [2020-12-22 11:09:07,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:09:07,814 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-22 11:09:07,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:07,816 INFO L225 Difference]: With dead ends: 236 [2020-12-22 11:09:07,816 INFO L226 Difference]: Without dead ends: 228 [2020-12-22 11:09:07,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:09:07,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-12-22 11:09:07,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 224. [2020-12-22 11:09:07,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-12-22 11:09:07,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 537 transitions. [2020-12-22 11:09:07,825 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 537 transitions. Word has length 17 [2020-12-22 11:09:07,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:07,828 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 537 transitions. [2020-12-22 11:09:07,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:09:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 537 transitions. [2020-12-22 11:09:07,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:09:07,829 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:07,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:07,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:09:07,830 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:07,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:07,830 INFO L82 PathProgramCache]: Analyzing trace with hash 2041241983, now seen corresponding path program 1 times [2020-12-22 11:09:07,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:07,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073780538] [2020-12-22 11:09:07,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:07,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:07,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073780538] [2020-12-22 11:09:07,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:07,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:09:07,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147762509] [2020-12-22 11:09:07,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:09:07,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:07,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:09:07,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:09:07,905 INFO L87 Difference]: Start difference. First operand 224 states and 537 transitions. Second operand 5 states. [2020-12-22 11:09:07,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:07,952 INFO L93 Difference]: Finished difference Result 276 states and 638 transitions. [2020-12-22 11:09:07,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:09:07,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-12-22 11:09:07,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:07,954 INFO L225 Difference]: With dead ends: 276 [2020-12-22 11:09:07,954 INFO L226 Difference]: Without dead ends: 162 [2020-12-22 11:09:07,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:09:07,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-22 11:09:07,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 158. [2020-12-22 11:09:07,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-12-22 11:09:07,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 338 transitions. [2020-12-22 11:09:07,961 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 338 transitions. Word has length 19 [2020-12-22 11:09:07,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:07,961 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 338 transitions. [2020-12-22 11:09:07,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:09:07,961 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 338 transitions. [2020-12-22 11:09:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:09:07,962 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:07,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:07,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 11:09:07,963 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:07,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:07,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1152877885, now seen corresponding path program 2 times [2020-12-22 11:09:07,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:07,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605751165] [2020-12-22 11:09:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:08,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605751165] [2020-12-22 11:09:08,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:08,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:09:08,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146905790] [2020-12-22 11:09:08,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:09:08,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:08,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:09:08,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:09:08,033 INFO L87 Difference]: Start difference. First operand 158 states and 338 transitions. Second operand 6 states. [2020-12-22 11:09:08,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:08,072 INFO L93 Difference]: Finished difference Result 137 states and 298 transitions. [2020-12-22 11:09:08,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:09:08,073 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-12-22 11:09:08,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:08,074 INFO L225 Difference]: With dead ends: 137 [2020-12-22 11:09:08,074 INFO L226 Difference]: Without dead ends: 53 [2020-12-22 11:09:08,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:09:08,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-22 11:09:08,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-12-22 11:09:08,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-22 11:09:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 96 transitions. [2020-12-22 11:09:08,077 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 96 transitions. Word has length 19 [2020-12-22 11:09:08,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:08,077 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 96 transitions. [2020-12-22 11:09:08,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:09:08,078 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 96 transitions. [2020-12-22 11:09:08,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:09:08,078 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:08,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:08,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 11:09:08,079 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:08,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:08,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1281872009, now seen corresponding path program 1 times [2020-12-22 11:09:08,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:08,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384299204] [2020-12-22 11:09:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:08,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:09:08,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384299204] [2020-12-22 11:09:08,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:08,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:09:08,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020495362] [2020-12-22 11:09:08,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:09:08,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:08,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:09:08,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:09:08,174 INFO L87 Difference]: Start difference. First operand 53 states and 96 transitions. Second operand 6 states. [2020-12-22 11:09:08,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:08,203 INFO L93 Difference]: Finished difference Result 52 states and 95 transitions. [2020-12-22 11:09:08,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:09:08,203 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-12-22 11:09:08,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:08,204 INFO L225 Difference]: With dead ends: 52 [2020-12-22 11:09:08,204 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:09:08,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:09:08,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:09:08,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:09:08,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:09:08,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:09:08,205 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-12-22 11:09:08,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:08,205 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:09:08,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:09:08,206 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:09:08,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:09:08,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 11:09:08,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:09:08 BasicIcfg [2020-12-22 11:09:08,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:09:08,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:09:08,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:09:08,212 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:09:08,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:09:01" (3/4) ... [2020-12-22 11:09:08,218 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:09:08,227 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:09:08,227 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:09:08,227 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:09:08,227 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-12-22 11:09:08,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-22 11:09:08,236 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:09:08,236 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:09:08,236 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:09:08,309 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe016_pso.oepc.i-witness.graphml [2020-12-22 11:09:08,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:09:08,310 INFO L168 Benchmark]: Toolchain (without parser) took 8655.86 ms. Allocated memory was 165.7 MB in the beginning and 254.8 MB in the end (delta: 89.1 MB). Free memory was 139.9 MB in the beginning and 113.8 MB in the end (delta: 26.1 MB). Peak memory consumption was 116.2 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:08,311 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 165.7 MB. Free memory is still 137.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:09:08,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 935.31 ms. Allocated memory is still 165.7 MB. Free memory was 139.7 MB in the beginning and 143.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:08,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.73 ms. Allocated memory is still 165.7 MB. Free memory was 143.3 MB in the beginning and 141.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:08,312 INFO L168 Benchmark]: Boogie Preprocessor took 70.71 ms. Allocated memory is still 165.7 MB. Free memory was 141.7 MB in the beginning and 140.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:08,313 INFO L168 Benchmark]: RCFGBuilder took 616.77 ms. Allocated memory is still 165.7 MB. Free memory was 140.2 MB in the beginning and 116.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:08,314 INFO L168 Benchmark]: TraceAbstraction took 6820.74 ms. Allocated memory was 165.7 MB in the beginning and 254.8 MB in the end (delta: 89.1 MB). Free memory was 116.0 MB in the beginning and 117.0 MB in the end (delta: -907.3 kB). Peak memory consumption was 88.2 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:08,314 INFO L168 Benchmark]: Witness Printer took 97.50 ms. Allocated memory is still 254.8 MB. Free memory was 116.4 MB in the beginning and 113.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:08,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 165.7 MB. Free memory is still 137.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 935.31 ms. Allocated memory is still 165.7 MB. Free memory was 139.7 MB in the beginning and 143.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 106.73 ms. Allocated memory is still 165.7 MB. Free memory was 143.3 MB in the beginning and 141.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.71 ms. Allocated memory is still 165.7 MB. Free memory was 141.7 MB in the beginning and 140.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 616.77 ms. Allocated memory is still 165.7 MB. Free memory was 140.2 MB in the beginning and 116.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6820.74 ms. Allocated memory was 165.7 MB in the beginning and 254.8 MB in the end (delta: 89.1 MB). Free memory was 116.0 MB in the beginning and 117.0 MB in the end (delta: -907.3 kB). Peak memory consumption was 88.2 MB. Max. memory is 8.0 GB. * Witness Printer took 97.50 ms. Allocated memory is still 254.8 MB. Free memory was 116.4 MB in the beginning and 113.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1211 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 39 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 114 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 96 PlacesBefore, 39 PlacesAfterwards, 85 TransitionsBefore, 27 TransitionsAfterwards, 1866 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 70 TotalNumberOfCompositions, 3411 MoverChecksTotal - 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, 84 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.6s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 336 SDtfs, 334 SDslu, 541 SDs, 0 SdLazy, 200 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=904occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 784 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 12345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...