/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 23:52:13,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 23:52:13,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 23:52:13,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 23:52:13,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 23:52:13,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 23:52:13,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 23:52:13,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 23:52:13,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 23:52:13,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 23:52:13,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 23:52:13,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 23:52:13,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 23:52:13,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 23:52:13,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 23:52:13,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 23:52:13,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 23:52:13,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 23:52:13,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 23:52:13,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 23:52:13,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 23:52:13,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 23:52:13,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 23:52:13,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 23:52:13,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-11 23:52:13,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-11 23:52:13,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-11 23:52:13,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-11 23:52:13,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-11 23:52:13,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-11 23:52:13,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 23:52:13,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 23:52:13,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 23:52:13,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 23:52:13,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 23:52:13,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 23:52:13,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 23:52:13,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 23:52:13,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 23:52:13,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 23:52:13,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 23:52:13,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-11-11 23:52:13,284 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 23:52:13,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 23:52:13,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 23:52:13,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 23:52:13,286 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 23:52:13,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 23:52:13,286 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 23:52:13,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 23:52:13,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 23:52:13,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 23:52:13,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 23:52:13,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 23:52:13,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 23:52:13,292 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 23:52:13,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 23:52:13,292 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 23:52:13,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 23:52:13,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 23:52:13,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 23:52:13,293 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 23:52:13,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 23:52:13,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 23:52:13,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 23:52:13,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 23:52:13,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 23:52:13,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 23:52:13,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 23:52:13,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 23:52:13,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 23:52:13,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 23:52:13,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 23:52:13,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 23:52:13,832 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 23:52:13,833 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 23:52:13,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2020-11-11 23:52:13,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c7c2869/4f652395c486431ba9a4ca4550efce95/FLAG19ac367b6 [2020-11-11 23:52:14,694 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 23:52:14,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2020-11-11 23:52:14,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c7c2869/4f652395c486431ba9a4ca4550efce95/FLAG19ac367b6 [2020-11-11 23:52:14,976 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c7c2869/4f652395c486431ba9a4ca4550efce95 [2020-11-11 23:52:14,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 23:52:14,991 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 23:52:14,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 23:52:14,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 23:52:14,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 23:52:15,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:52:14" (1/1) ... [2020-11-11 23:52:15,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229b5e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15, skipping insertion in model container [2020-11-11 23:52:15,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:52:14" (1/1) ... [2020-11-11 23:52:15,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 23:52:15,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 23:52:15,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 23:52:15,554 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 23:52:15,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 23:52:15,726 INFO L208 MainTranslator]: Completed translation [2020-11-11 23:52:15,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15 WrapperNode [2020-11-11 23:52:15,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 23:52:15,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 23:52:15,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 23:52:15,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 23:52:15,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15" (1/1) ... [2020-11-11 23:52:15,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15" (1/1) ... [2020-11-11 23:52:15,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 23:52:15,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 23:52:15,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 23:52:15,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 23:52:15,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15" (1/1) ... [2020-11-11 23:52:15,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15" (1/1) ... [2020-11-11 23:52:15,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15" (1/1) ... [2020-11-11 23:52:15,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15" (1/1) ... [2020-11-11 23:52:15,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15" (1/1) ... [2020-11-11 23:52:15,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15" (1/1) ... [2020-11-11 23:52:15,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15" (1/1) ... [2020-11-11 23:52:15,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 23:52:15,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 23:52:15,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 23:52:15,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 23:52:15,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15" (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 [2020-11-11 23:52:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 23:52:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 23:52:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 23:52:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 23:52:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 23:52:15,903 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 23:52:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 23:52:15,904 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 23:52:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 23:52:15,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 23:52:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 23:52:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 23:52:15,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 23:52:15,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 23:52:15,910 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 23:52:16,494 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 23:52:16,495 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 23:52:16,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:52:16 BoogieIcfgContainer [2020-11-11 23:52:16,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 23:52:16,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 23:52:16,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 23:52:16,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 23:52:16,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 11:52:14" (1/3) ... [2020-11-11 23:52:16,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d273147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:52:16, skipping insertion in model container [2020-11-11 23:52:16,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:52:15" (2/3) ... [2020-11-11 23:52:16,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d273147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:52:16, skipping insertion in model container [2020-11-11 23:52:16,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:52:16" (3/3) ... [2020-11-11 23:52:16,510 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc.i [2020-11-11 23:52:16,537 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 23:52:16,537 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 23:52:16,541 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 23:52:16,542 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 23:52:16,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,586 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,586 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,586 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,586 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,587 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,589 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,590 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,590 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,591 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,595 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,597 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,598 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,598 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,600 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,612 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,612 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,612 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,617 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,618 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,621 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,621 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,621 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,622 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:52:16,625 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 23:52:16,639 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-11 23:52:16,664 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 23:52:16,665 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 23:52:16,665 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 23:52:16,665 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 23:52:16,665 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 23:52:16,665 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 23:52:16,665 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 23:52:16,666 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 23:52:16,678 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-11 23:52:16,680 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-11 23:52:16,683 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-11 23:52:16,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-11 23:52:16,729 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-11 23:52:16,730 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-11 23:52:16,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-11 23:52:16,737 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-11 23:52:19,572 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-11 23:52:19,902 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-11 23:52:20,008 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-11 23:52:20,150 INFO L131 LiptonReduction]: Checked pairs total: 2870 [2020-11-11 23:52:20,150 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-11 23:52:20,159 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-11 23:52:20,194 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 362 states, 360 states have (on average 3.1555555555555554) internal successors, (1136), 361 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:20,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 360 states have (on average 3.1555555555555554) internal successors, (1136), 361 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-11 23:52:20,206 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:20,207 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:20,207 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:20,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:20,214 INFO L82 PathProgramCache]: Analyzing trace with hash 2120671033, now seen corresponding path program 1 times [2020-11-11 23:52:20,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:20,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555865463] [2020-11-11 23:52:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:20,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:20,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555865463] [2020-11-11 23:52:20,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:20,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 23:52:20,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175832637] [2020-11-11 23:52:20,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-11 23:52:20,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:20,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-11 23:52:20,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-11 23:52:20,435 INFO L87 Difference]: Start difference. First operand has 362 states, 360 states have (on average 3.1555555555555554) internal successors, (1136), 361 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:20,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:20,469 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-11 23:52:20,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-11 23:52:20,470 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2020-11-11 23:52:20,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:20,496 INFO L225 Difference]: With dead ends: 362 [2020-11-11 23:52:20,497 INFO L226 Difference]: Without dead ends: 298 [2020-11-11 23:52:20,499 INFO L749 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 [2020-11-11 23:52:20,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-11 23:52:20,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-11 23:52:20,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 2.909090909090909) internal successors, (864), 297 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:20,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-11 23:52:20,615 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-11 23:52:20,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:20,616 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-11 23:52:20,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:20,617 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-11 23:52:20,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-11 23:52:20,618 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:20,619 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:20,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 23:52:20,619 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:20,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:20,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1316261025, now seen corresponding path program 1 times [2020-11-11 23:52:20,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:20,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074164041] [2020-11-11 23:52:20,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:20,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:20,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074164041] [2020-11-11 23:52:20,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:20,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 23:52:20,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820156307] [2020-11-11 23:52:20,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 23:52:20,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:20,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 23:52:20,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 23:52:20,780 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:20,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:20,854 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-11-11 23:52:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 23:52:20,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2020-11-11 23:52:20,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:20,860 INFO L225 Difference]: With dead ends: 330 [2020-11-11 23:52:20,860 INFO L226 Difference]: Without dead ends: 266 [2020-11-11 23:52:20,861 INFO L749 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 [2020-11-11 23:52:20,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-11 23:52:20,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-11 23:52:20,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 2.8377358490566036) internal successors, (752), 265 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:20,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-11-11 23:52:20,881 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-11-11 23:52:20,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:20,881 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-11-11 23:52:20,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:20,881 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-11-11 23:52:20,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-11 23:52:20,883 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:20,883 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:20,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 23:52:20,884 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:20,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:20,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1018022108, now seen corresponding path program 1 times [2020-11-11 23:52:20,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:20,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288314160] [2020-11-11 23:52:20,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:20,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288314160] [2020-11-11 23:52:20,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:20,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 23:52:20,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499381914] [2020-11-11 23:52:20,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 23:52:20,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:20,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 23:52:20,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-11 23:52:20,986 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:21,047 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-11-11 23:52:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 23:52:21,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2020-11-11 23:52:21,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:21,051 INFO L225 Difference]: With dead ends: 290 [2020-11-11 23:52:21,051 INFO L226 Difference]: Without dead ends: 242 [2020-11-11 23:52:21,051 INFO L749 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 [2020-11-11 23:52:21,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-11-11 23:52:21,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-11-11 23:52:21,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 2.780082987551867) internal successors, (670), 241 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-11-11 23:52:21,067 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-11-11 23:52:21,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:21,067 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-11-11 23:52:21,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,067 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-11-11 23:52:21,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-11 23:52:21,069 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:21,069 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:21,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 23:52:21,070 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:21,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:21,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1615070613, now seen corresponding path program 1 times [2020-11-11 23:52:21,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:21,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64099896] [2020-11-11 23:52:21,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:21,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:21,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64099896] [2020-11-11 23:52:21,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:21,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 23:52:21,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372199820] [2020-11-11 23:52:21,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 23:52:21,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:21,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 23:52:21,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 23:52:21,194 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:21,224 INFO L93 Difference]: Finished difference Result 260 states and 694 transitions. [2020-11-11 23:52:21,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 23:52:21,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2020-11-11 23:52:21,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:21,227 INFO L225 Difference]: With dead ends: 260 [2020-11-11 23:52:21,227 INFO L226 Difference]: Without dead ends: 224 [2020-11-11 23:52:21,228 INFO L749 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 [2020-11-11 23:52:21,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-11-11 23:52:21,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-11-11 23:52:21,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 2.7354260089686098) internal successors, (610), 223 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 610 transitions. [2020-11-11 23:52:21,242 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 610 transitions. Word has length 11 [2020-11-11 23:52:21,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:21,243 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 610 transitions. [2020-11-11 23:52:21,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,243 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 610 transitions. [2020-11-11 23:52:21,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-11 23:52:21,251 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:21,251 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:21,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 23:52:21,257 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:21,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:21,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1472189025, now seen corresponding path program 1 times [2020-11-11 23:52:21,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:21,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661532304] [2020-11-11 23:52:21,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:21,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:21,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661532304] [2020-11-11 23:52:21,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:21,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 23:52:21,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905239319] [2020-11-11 23:52:21,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 23:52:21,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:21,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 23:52:21,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-11 23:52:21,387 INFO L87 Difference]: Start difference. First operand 224 states and 610 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:21,477 INFO L93 Difference]: Finished difference Result 332 states and 880 transitions. [2020-11-11 23:52:21,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 23:52:21,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2020-11-11 23:52:21,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:21,479 INFO L225 Difference]: With dead ends: 332 [2020-11-11 23:52:21,480 INFO L226 Difference]: Without dead ends: 206 [2020-11-11 23:52:21,480 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-11 23:52:21,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-11-11 23:52:21,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-11-11 23:52:21,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 2.6439024390243904) internal successors, (542), 205 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 542 transitions. [2020-11-11 23:52:21,489 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 542 transitions. Word has length 12 [2020-11-11 23:52:21,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:21,489 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 542 transitions. [2020-11-11 23:52:21,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,489 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 542 transitions. [2020-11-11 23:52:21,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-11 23:52:21,491 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:21,491 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:21,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 23:52:21,491 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:21,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:21,492 INFO L82 PathProgramCache]: Analyzing trace with hash 524818693, now seen corresponding path program 1 times [2020-11-11 23:52:21,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:21,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921336889] [2020-11-11 23:52:21,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:21,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921336889] [2020-11-11 23:52:21,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:21,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 23:52:21,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914454549] [2020-11-11 23:52:21,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 23:52:21,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:21,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 23:52:21,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-11 23:52:21,550 INFO L87 Difference]: Start difference. First operand 206 states and 542 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:21,595 INFO L93 Difference]: Finished difference Result 260 states and 671 transitions. [2020-11-11 23:52:21,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-11 23:52:21,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2020-11-11 23:52:21,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:21,596 INFO L225 Difference]: With dead ends: 260 [2020-11-11 23:52:21,597 INFO L226 Difference]: Without dead ends: 116 [2020-11-11 23:52:21,597 INFO L749 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 [2020-11-11 23:52:21,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-11 23:52:21,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-11-11 23:52:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 2.4) internal successors, (276), 115 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 276 transitions. [2020-11-11 23:52:21,602 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 276 transitions. Word has length 13 [2020-11-11 23:52:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:21,602 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 276 transitions. [2020-11-11 23:52:21,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,603 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 276 transitions. [2020-11-11 23:52:21,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-11 23:52:21,603 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:21,603 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:21,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 23:52:21,604 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:21,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:21,604 INFO L82 PathProgramCache]: Analyzing trace with hash -2065671095, now seen corresponding path program 1 times [2020-11-11 23:52:21,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:21,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908444387] [2020-11-11 23:52:21,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:21,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908444387] [2020-11-11 23:52:21,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:21,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 23:52:21,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623391499] [2020-11-11 23:52:21,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 23:52:21,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:21,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 23:52:21,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 23:52:21,671 INFO L87 Difference]: Start difference. First operand 116 states and 276 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:21,698 INFO L93 Difference]: Finished difference Result 137 states and 299 transitions. [2020-11-11 23:52:21,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 23:52:21,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2020-11-11 23:52:21,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:21,700 INFO L225 Difference]: With dead ends: 137 [2020-11-11 23:52:21,700 INFO L226 Difference]: Without dead ends: 97 [2020-11-11 23:52:21,701 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-11 23:52:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-11-11 23:52:21,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-11-11 23:52:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 2.15625) internal successors, (207), 96 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 207 transitions. [2020-11-11 23:52:21,705 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 207 transitions. Word has length 14 [2020-11-11 23:52:21,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:21,705 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 207 transitions. [2020-11-11 23:52:21,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,706 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 207 transitions. [2020-11-11 23:52:21,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-11 23:52:21,706 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:21,706 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:21,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 23:52:21,706 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:21,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1543325536, now seen corresponding path program 1 times [2020-11-11 23:52:21,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:21,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869909118] [2020-11-11 23:52:21,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:21,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869909118] [2020-11-11 23:52:21,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:21,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 23:52:21,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596369850] [2020-11-11 23:52:21,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 23:52:21,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:21,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 23:52:21,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-11 23:52:21,799 INFO L87 Difference]: Start difference. First operand 97 states and 207 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:21,843 INFO L93 Difference]: Finished difference Result 95 states and 184 transitions. [2020-11-11 23:52:21,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-11 23:52:21,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2020-11-11 23:52:21,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:21,845 INFO L225 Difference]: With dead ends: 95 [2020-11-11 23:52:21,845 INFO L226 Difference]: Without dead ends: 70 [2020-11-11 23:52:21,845 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-11 23:52:21,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-11 23:52:21,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-11-11 23:52:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.855072463768116) internal successors, (128), 69 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 128 transitions. [2020-11-11 23:52:21,849 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 128 transitions. Word has length 15 [2020-11-11 23:52:21,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:21,849 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 128 transitions. [2020-11-11 23:52:21,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,849 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 128 transitions. [2020-11-11 23:52:21,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-11 23:52:21,850 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:21,850 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:21,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 23:52:21,850 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:21,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:21,851 INFO L82 PathProgramCache]: Analyzing trace with hash -598174437, now seen corresponding path program 1 times [2020-11-11 23:52:21,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:21,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139603045] [2020-11-11 23:52:21,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:21,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:21,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139603045] [2020-11-11 23:52:21,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:21,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-11 23:52:21,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040040494] [2020-11-11 23:52:21,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 23:52:21,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:21,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 23:52:21,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-11 23:52:21,928 INFO L87 Difference]: Start difference. First operand 70 states and 128 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:21,976 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-11-11 23:52:21,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 23:52:21,976 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2020-11-11 23:52:21,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:21,977 INFO L225 Difference]: With dead ends: 63 [2020-11-11 23:52:21,977 INFO L226 Difference]: Without dead ends: 55 [2020-11-11 23:52:21,977 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-11 23:52:21,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-11 23:52:21,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-11-11 23:52:21,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.8148148148148149) internal successors, (98), 54 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 98 transitions. [2020-11-11 23:52:21,980 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 98 transitions. Word has length 16 [2020-11-11 23:52:21,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:21,980 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 98 transitions. [2020-11-11 23:52:21,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 98 transitions. [2020-11-11 23:52:21,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-11 23:52:21,981 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:21,981 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:21,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-11 23:52:21,982 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:21,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:21,982 INFO L82 PathProgramCache]: Analyzing trace with hash 630901748, now seen corresponding path program 1 times [2020-11-11 23:52:21,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:21,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958742386] [2020-11-11 23:52:21,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:22,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958742386] [2020-11-11 23:52:22,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:22,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 23:52:22,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052865998] [2020-11-11 23:52:22,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 23:52:22,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:22,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 23:52:22,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-11 23:52:22,037 INFO L87 Difference]: Start difference. First operand 55 states and 98 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:22,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:22,067 INFO L93 Difference]: Finished difference Result 65 states and 112 transitions. [2020-11-11 23:52:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 23:52:22,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2020-11-11 23:52:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:22,068 INFO L225 Difference]: With dead ends: 65 [2020-11-11 23:52:22,068 INFO L226 Difference]: Without dead ends: 36 [2020-11-11 23:52:22,068 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-11 23:52:22,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-11 23:52:22,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-11 23:52:22,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:22,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2020-11-11 23:52:22,070 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 18 [2020-11-11 23:52:22,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:22,071 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2020-11-11 23:52:22,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:22,071 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2020-11-11 23:52:22,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-11 23:52:22,071 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:22,072 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:22,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-11 23:52:22,072 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:22,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:22,072 INFO L82 PathProgramCache]: Analyzing trace with hash 996855826, now seen corresponding path program 2 times [2020-11-11 23:52:22,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:22,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125793632] [2020-11-11 23:52:22,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:22,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125793632] [2020-11-11 23:52:22,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:22,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 23:52:22,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629117114] [2020-11-11 23:52:22,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 23:52:22,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:22,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 23:52:22,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-11 23:52:22,121 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:22,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:22,148 INFO L93 Difference]: Finished difference Result 50 states and 79 transitions. [2020-11-11 23:52:22,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-11 23:52:22,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2020-11-11 23:52:22,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:22,149 INFO L225 Difference]: With dead ends: 50 [2020-11-11 23:52:22,149 INFO L226 Difference]: Without dead ends: 31 [2020-11-11 23:52:22,150 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-11 23:52:22,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-11 23:52:22,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-11 23:52:22,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:22,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-11-11 23:52:22,151 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 18 [2020-11-11 23:52:22,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:22,152 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-11-11 23:52:22,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:22,152 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-11-11 23:52:22,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-11 23:52:22,153 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:22,153 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:22,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-11 23:52:22,153 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:22,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:22,154 INFO L82 PathProgramCache]: Analyzing trace with hash 664387820, now seen corresponding path program 3 times [2020-11-11 23:52:22,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:22,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525909124] [2020-11-11 23:52:22,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:22,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:22,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525909124] [2020-11-11 23:52:22,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:22,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 23:52:22,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290057129] [2020-11-11 23:52:22,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 23:52:22,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:22,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 23:52:22,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-11 23:52:22,215 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:22,241 INFO L93 Difference]: Finished difference Result 30 states and 44 transitions. [2020-11-11 23:52:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 23:52:22,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2020-11-11 23:52:22,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:22,241 INFO L225 Difference]: With dead ends: 30 [2020-11-11 23:52:22,241 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 23:52:22,242 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-11 23:52:22,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 23:52:22,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 23:52:22,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:22,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 23:52:22,243 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-11 23:52:22,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:22,243 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 23:52:22,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:22,243 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 23:52:22,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 23:52:22,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-11 23:52:22,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 11:52:22 BasicIcfg [2020-11-11 23:52:22,247 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 23:52:22,248 INFO L168 Benchmark]: Toolchain (without parser) took 7263.67 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 275.5 MB in the beginning and 133.9 MB in the end (delta: 141.6 MB). Peak memory consumption was 205.1 MB. Max. memory is 16.0 GB. [2020-11-11 23:52:22,249 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 23:52:22,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.09 ms. Allocated memory is still 302.0 MB. Free memory was 274.8 MB in the beginning and 273.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.0 GB. [2020-11-11 23:52:22,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.11 ms. Allocated memory is still 302.0 MB. Free memory was 273.5 MB in the beginning and 271.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 23:52:22,251 INFO L168 Benchmark]: Boogie Preprocessor took 28.45 ms. Allocated memory is still 302.0 MB. Free memory was 271.7 MB in the beginning and 270.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 23:52:22,252 INFO L168 Benchmark]: RCFGBuilder took 679.25 ms. Allocated memory is still 302.0 MB. Free memory was 270.1 MB in the beginning and 248.4 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-11 23:52:22,252 INFO L168 Benchmark]: TraceAbstraction took 5744.69 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 247.9 MB in the beginning and 133.9 MB in the end (delta: 114.0 MB). Peak memory consumption was 174.2 MB. Max. memory is 16.0 GB. [2020-11-11 23:52:22,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 734.09 ms. Allocated memory is still 302.0 MB. Free memory was 274.8 MB in the beginning and 273.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 60.11 ms. Allocated memory is still 302.0 MB. Free memory was 273.5 MB in the beginning and 271.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.45 ms. Allocated memory is still 302.0 MB. Free memory was 271.7 MB in the beginning and 270.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 679.25 ms. Allocated memory is still 302.0 MB. Free memory was 270.1 MB in the beginning and 248.4 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5744.69 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 247.9 MB in the beginning and 133.9 MB in the end (delta: 114.0 MB). Peak memory consumption was 174.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 995 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.4s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2870 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 259 SDtfs, 248 SDslu, 462 SDs, 0 SdLazy, 200 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 5826 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...