/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 14:45:39,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 14:45:39,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 14:45:39,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 14:45:39,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 14:45:39,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 14:45:39,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 14:45:39,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 14:45:39,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 14:45:39,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 14:45:39,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 14:45:39,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 14:45:39,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 14:45:39,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 14:45:39,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 14:45:39,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 14:45:39,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 14:45:39,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 14:45:39,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 14:45:39,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 14:45:39,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 14:45:39,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 14:45:39,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 14:45:39,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 14:45:39,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 14:45:39,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 14:45:39,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 14:45:39,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 14:45:39,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 14:45:39,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 14:45:39,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 14:45:39,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 14:45:39,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 14:45:39,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 14:45:39,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 14:45:39,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 14:45:39,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 14:45:39,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 14:45:39,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 14:45:39,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 14:45:39,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 14:45:39,350 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-NoLbe.epf [2019-12-27 14:45:39,378 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 14:45:39,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 14:45:39,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 14:45:39,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 14:45:39,380 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 14:45:39,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 14:45:39,381 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 14:45:39,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 14:45:39,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 14:45:39,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 14:45:39,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 14:45:39,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 14:45:39,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 14:45:39,383 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 14:45:39,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 14:45:39,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 14:45:39,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 14:45:39,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 14:45:39,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 14:45:39,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 14:45:39,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 14:45:39,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:45:39,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 14:45:39,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 14:45:39,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 14:45:39,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 14:45:39,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 14:45:39,386 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 14:45:39,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 14:45:39,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 14:45:39,657 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 14:45:39,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 14:45:39,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 14:45:39,681 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 14:45:39,681 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 14:45:39,682 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2019-12-27 14:45:39,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2a0a0511/4a182e44855e4955b68ed8d8f8842738/FLAGad8579429 [2019-12-27 14:45:40,404 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 14:45:40,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2019-12-27 14:45:40,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2a0a0511/4a182e44855e4955b68ed8d8f8842738/FLAGad8579429 [2019-12-27 14:45:40,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2a0a0511/4a182e44855e4955b68ed8d8f8842738 [2019-12-27 14:45:40,624 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 14:45:40,625 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 14:45:40,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 14:45:40,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 14:45:40,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 14:45:40,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:45:40" (1/1) ... [2019-12-27 14:45:40,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@796cd45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:40, skipping insertion in model container [2019-12-27 14:45:40,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:45:40" (1/1) ... [2019-12-27 14:45:40,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 14:45:40,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 14:45:41,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:45:41,562 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 14:45:41,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:45:42,088 INFO L208 MainTranslator]: Completed translation [2019-12-27 14:45:42,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42 WrapperNode [2019-12-27 14:45:42,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 14:45:42,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 14:45:42,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 14:45:42,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 14:45:42,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42" (1/1) ... [2019-12-27 14:45:42,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42" (1/1) ... [2019-12-27 14:45:42,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 14:45:42,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 14:45:42,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 14:45:42,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 14:45:42,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42" (1/1) ... [2019-12-27 14:45:42,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42" (1/1) ... [2019-12-27 14:45:42,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42" (1/1) ... [2019-12-27 14:45:42,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42" (1/1) ... [2019-12-27 14:45:42,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42" (1/1) ... [2019-12-27 14:45:42,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42" (1/1) ... [2019-12-27 14:45:42,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42" (1/1) ... [2019-12-27 14:45:42,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 14:45:42,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 14:45:42,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 14:45:42,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 14:45:42,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42" (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 [2019-12-27 14:45:42,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 14:45:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 14:45:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-27 14:45:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 14:45:42,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 14:45:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2019-12-27 14:45:42,354 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2019-12-27 14:45:42,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 14:45:42,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 14:45:42,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 14:45:42,357 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 14:45:43,097 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 14:45:43,097 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-27 14:45:43,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:45:43 BoogieIcfgContainer [2019-12-27 14:45:43,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 14:45:43,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 14:45:43,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 14:45:43,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 14:45:43,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 02:45:40" (1/3) ... [2019-12-27 14:45:43,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190b479a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:45:43, skipping insertion in model container [2019-12-27 14:45:43,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:45:42" (2/3) ... [2019-12-27 14:45:43,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190b479a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:45:43, skipping insertion in model container [2019-12-27 14:45:43,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:45:43" (3/3) ... [2019-12-27 14:45:43,108 INFO L109 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2019-12-27 14:45:43,117 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 14:45:43,118 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 14:45:43,125 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-27 14:45:43,127 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 14:45:43,155 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,156 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,156 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,156 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,157 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,157 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,157 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,157 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,157 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,158 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,158 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,158 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,158 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,158 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,159 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,159 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,159 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,159 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,160 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,160 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,160 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,161 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,161 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,161 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,161 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,161 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,162 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,162 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,162 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,163 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,163 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,163 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,163 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,164 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,164 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,164 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,164 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,165 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,165 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,165 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,165 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,165 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,166 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,166 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,166 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,166 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,167 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,167 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,167 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,167 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,168 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,168 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,168 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,168 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,169 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,169 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,169 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,169 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,174 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,174 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,174 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,174 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,175 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,175 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,175 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,175 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,176 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,176 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,176 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,184 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,184 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,184 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,185 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,185 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,185 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,185 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,186 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,186 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,186 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,186 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:45:43,226 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 14:45:43,247 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:45:43,247 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:45:43,247 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:45:43,248 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:45:43,248 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:45:43,248 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:45:43,248 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:45:43,248 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:45:43,263 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 129 places, 131 transitions [2019-12-27 14:45:43,519 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5573 states. [2019-12-27 14:45:43,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5573 states. [2019-12-27 14:45:43,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-12-27 14:45:43,537 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:45:43,538 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:45:43,539 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:45:43,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:45:43,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1827347688, now seen corresponding path program 1 times [2019-12-27 14:45:43,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:45:43,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973148620] [2019-12-27 14:45:43,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:45:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:45:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:45:44,122 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973148620] [2019-12-27 14:45:44,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:45:44,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:45:44,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387474910] [2019-12-27 14:45:44,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:45:44,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:45:44,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:45:44,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:45:44,148 INFO L87 Difference]: Start difference. First operand 5573 states. Second operand 6 states. [2019-12-27 14:45:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:45:45,159 INFO L93 Difference]: Finished difference Result 8100 states and 22333 transitions. [2019-12-27 14:45:45,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-27 14:45:45,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2019-12-27 14:45:45,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:45:45,256 INFO L225 Difference]: With dead ends: 8100 [2019-12-27 14:45:45,256 INFO L226 Difference]: Without dead ends: 6751 [2019-12-27 14:45:45,260 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2019-12-27 14:45:45,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2019-12-27 14:45:45,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 5126. [2019-12-27 14:45:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5126 states. [2019-12-27 14:45:45,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5126 states to 5126 states and 14055 transitions. [2019-12-27 14:45:45,598 INFO L78 Accepts]: Start accepts. Automaton has 5126 states and 14055 transitions. Word has length 44 [2019-12-27 14:45:45,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:45:45,600 INFO L462 AbstractCegarLoop]: Abstraction has 5126 states and 14055 transitions. [2019-12-27 14:45:45,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:45:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 5126 states and 14055 transitions. [2019-12-27 14:45:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-12-27 14:45:45,614 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:45:45,615 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:45:45,615 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:45:45,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:45:45,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1787160073, now seen corresponding path program 1 times [2019-12-27 14:45:45,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:45:45,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232223717] [2019-12-27 14:45:45,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:45:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:45:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:45:45,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232223717] [2019-12-27 14:45:45,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:45:45,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:45:45,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163768110] [2019-12-27 14:45:45,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:45:45,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:45:45,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:45:45,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:45:45,794 INFO L87 Difference]: Start difference. First operand 5126 states and 14055 transitions. Second operand 6 states. [2019-12-27 14:45:46,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:45:46,477 INFO L93 Difference]: Finished difference Result 7325 states and 19926 transitions. [2019-12-27 14:45:46,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-27 14:45:46,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2019-12-27 14:45:46,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:45:46,514 INFO L225 Difference]: With dead ends: 7325 [2019-12-27 14:45:46,515 INFO L226 Difference]: Without dead ends: 6148 [2019-12-27 14:45:46,515 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-12-27 14:45:46,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6148 states. [2019-12-27 14:45:46,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6148 to 5932. [2019-12-27 14:45:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5932 states. [2019-12-27 14:45:46,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5932 states to 5932 states and 16300 transitions. [2019-12-27 14:45:46,685 INFO L78 Accepts]: Start accepts. Automaton has 5932 states and 16300 transitions. Word has length 50 [2019-12-27 14:45:46,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:45:46,685 INFO L462 AbstractCegarLoop]: Abstraction has 5932 states and 16300 transitions. [2019-12-27 14:45:46,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:45:46,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5932 states and 16300 transitions. [2019-12-27 14:45:46,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-12-27 14:45:46,693 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:45:46,693 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:45:46,693 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:45:46,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:45:46,694 INFO L82 PathProgramCache]: Analyzing trace with hash 588218236, now seen corresponding path program 1 times [2019-12-27 14:45:46,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:45:46,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782690643] [2019-12-27 14:45:46,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:45:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:45:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:45:46,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782690643] [2019-12-27 14:45:46,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:45:46,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 14:45:46,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905474398] [2019-12-27 14:45:46,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 14:45:46,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:45:46,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 14:45:46,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:45:46,887 INFO L87 Difference]: Start difference. First operand 5932 states and 16300 transitions. Second operand 5 states. [2019-12-27 14:45:46,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:45:46,977 INFO L93 Difference]: Finished difference Result 2080 states and 5512 transitions. [2019-12-27 14:45:46,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 14:45:46,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2019-12-27 14:45:46,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:45:46,990 INFO L225 Difference]: With dead ends: 2080 [2019-12-27 14:45:46,990 INFO L226 Difference]: Without dead ends: 2080 [2019-12-27 14:45:46,990 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-27 14:45:47,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2019-12-27 14:45:47,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 2080. [2019-12-27 14:45:47,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-12-27 14:45:47,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 5512 transitions. [2019-12-27 14:45:47,053 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 5512 transitions. Word has length 56 [2019-12-27 14:45:47,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:45:47,057 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 5512 transitions. [2019-12-27 14:45:47,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 14:45:47,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 5512 transitions. [2019-12-27 14:45:47,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:45:47,067 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:45:47,068 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:45:47,068 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:45:47,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:45:47,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1531262921, now seen corresponding path program 1 times [2019-12-27 14:45:47,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:45:47,070 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112039368] [2019-12-27 14:45:47,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:45:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:45:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:45:48,903 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112039368] [2019-12-27 14:45:48,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:45:48,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-12-27 14:45:48,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879978261] [2019-12-27 14:45:48,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-12-27 14:45:48,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:45:48,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-12-27 14:45:48,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2019-12-27 14:45:48,906 INFO L87 Difference]: Start difference. First operand 2080 states and 5512 transitions. Second operand 19 states. [2019-12-27 14:45:50,233 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-12-27 14:45:50,433 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-12-27 14:45:51,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:45:51,550 INFO L93 Difference]: Finished difference Result 2950 states and 7349 transitions. [2019-12-27 14:45:51,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-12-27 14:45:51,554 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 86 [2019-12-27 14:45:51,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:45:51,572 INFO L225 Difference]: With dead ends: 2950 [2019-12-27 14:45:51,572 INFO L226 Difference]: Without dead ends: 2950 [2019-12-27 14:45:51,573 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2019-12-27 14:45:51,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2019-12-27 14:45:51,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 2333. [2019-12-27 14:45:51,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2019-12-27 14:45:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 6054 transitions. [2019-12-27 14:45:51,633 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 6054 transitions. Word has length 86 [2019-12-27 14:45:51,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:45:51,634 INFO L462 AbstractCegarLoop]: Abstraction has 2333 states and 6054 transitions. [2019-12-27 14:45:51,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-12-27 14:45:51,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 6054 transitions. [2019-12-27 14:45:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:45:51,642 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:45:51,642 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:45:51,642 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:45:51,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:45:51,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1907224459, now seen corresponding path program 2 times [2019-12-27 14:45:51,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:45:51,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848546844] [2019-12-27 14:45:51,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:45:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:45:52,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:45:52,904 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848546844] [2019-12-27 14:45:52,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:45:52,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-12-27 14:45:52,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66194029] [2019-12-27 14:45:52,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-12-27 14:45:52,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:45:52,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-12-27 14:45:52,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-12-27 14:45:52,907 INFO L87 Difference]: Start difference. First operand 2333 states and 6054 transitions. Second operand 19 states. [2019-12-27 14:45:54,125 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-12-27 14:45:54,322 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-12-27 14:45:55,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:45:55,442 INFO L93 Difference]: Finished difference Result 3116 states and 7687 transitions. [2019-12-27 14:45:55,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-12-27 14:45:55,442 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 86 [2019-12-27 14:45:55,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:45:55,456 INFO L225 Difference]: With dead ends: 3116 [2019-12-27 14:45:55,456 INFO L226 Difference]: Without dead ends: 3116 [2019-12-27 14:45:55,457 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2019-12-27 14:45:55,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2019-12-27 14:45:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 2333. [2019-12-27 14:45:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2019-12-27 14:45:55,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 6054 transitions. [2019-12-27 14:45:55,548 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 6054 transitions. Word has length 86 [2019-12-27 14:45:55,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:45:55,548 INFO L462 AbstractCegarLoop]: Abstraction has 2333 states and 6054 transitions. [2019-12-27 14:45:55,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-12-27 14:45:55,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 6054 transitions. [2019-12-27 14:45:55,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:45:55,555 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:45:55,555 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:45:55,555 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:45:55,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:45:55,556 INFO L82 PathProgramCache]: Analyzing trace with hash 33878059, now seen corresponding path program 1 times [2019-12-27 14:45:55,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:45:55,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218649214] [2019-12-27 14:45:55,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:45:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:45:56,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:45:56,501 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218649214] [2019-12-27 14:45:56,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:45:56,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-12-27 14:45:56,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280135156] [2019-12-27 14:45:56,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-12-27 14:45:56,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:45:56,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-12-27 14:45:56,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-12-27 14:45:56,503 INFO L87 Difference]: Start difference. First operand 2333 states and 6054 transitions. Second operand 22 states. [2019-12-27 14:45:57,501 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-12-27 14:45:59,197 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2019-12-27 14:45:59,647 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-12-27 14:45:59,839 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2019-12-27 14:46:00,001 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-12-27 14:46:00,169 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-12-27 14:46:00,332 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-12-27 14:46:00,552 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-12-27 14:46:00,723 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-12-27 14:46:00,944 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-12-27 14:46:01,217 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2019-12-27 14:46:01,397 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-12-27 14:46:01,667 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2019-12-27 14:46:03,114 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-12-27 14:46:03,309 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-12-27 14:46:03,692 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-12-27 14:46:04,075 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2019-12-27 14:46:04,228 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-12-27 14:46:04,450 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-12-27 14:46:04,625 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-12-27 14:46:04,839 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-12-27 14:46:05,049 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-12-27 14:46:05,243 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-12-27 14:46:05,436 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-12-27 14:46:05,672 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2019-12-27 14:46:05,902 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-12-27 14:46:06,179 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-12-27 14:46:06,462 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2019-12-27 14:46:06,695 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-12-27 14:46:06,971 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2019-12-27 14:46:07,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:46:07,364 INFO L93 Difference]: Finished difference Result 2253 states and 5902 transitions. [2019-12-27 14:46:07,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-12-27 14:46:07,365 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 86 [2019-12-27 14:46:07,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:46:07,374 INFO L225 Difference]: With dead ends: 2253 [2019-12-27 14:46:07,374 INFO L226 Difference]: Without dead ends: 2253 [2019-12-27 14:46:07,377 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1079 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=2212, Invalid=4760, Unknown=0, NotChecked=0, Total=6972 [2019-12-27 14:46:07,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2019-12-27 14:46:07,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2253. [2019-12-27 14:46:07,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2253 states. [2019-12-27 14:46:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 5902 transitions. [2019-12-27 14:46:07,428 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 5902 transitions. Word has length 86 [2019-12-27 14:46:07,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:46:07,429 INFO L462 AbstractCegarLoop]: Abstraction has 2253 states and 5902 transitions. [2019-12-27 14:46:07,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-12-27 14:46:07,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 5902 transitions. [2019-12-27 14:46:07,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:46:07,434 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:46:07,435 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:46:07,435 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:46:07,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:46:07,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1258105037, now seen corresponding path program 3 times [2019-12-27 14:46:07,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:46:07,436 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038591903] [2019-12-27 14:46:07,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:46:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:46:08,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:46:08,478 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038591903] [2019-12-27 14:46:08,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:46:08,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-12-27 14:46:08,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143820593] [2019-12-27 14:46:08,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-12-27 14:46:08,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:46:08,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-12-27 14:46:08,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2019-12-27 14:46:08,480 INFO L87 Difference]: Start difference. First operand 2253 states and 5902 transitions. Second operand 19 states. [2019-12-27 14:46:09,789 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-12-27 14:46:10,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:46:10,562 INFO L93 Difference]: Finished difference Result 2813 states and 7178 transitions. [2019-12-27 14:46:10,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-12-27 14:46:10,563 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 86 [2019-12-27 14:46:10,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:46:10,569 INFO L225 Difference]: With dead ends: 2813 [2019-12-27 14:46:10,570 INFO L226 Difference]: Without dead ends: 2813 [2019-12-27 14:46:10,570 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=311, Invalid=745, Unknown=0, NotChecked=0, Total=1056 [2019-12-27 14:46:10,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2019-12-27 14:46:10,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2517. [2019-12-27 14:46:10,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2517 states. [2019-12-27 14:46:10,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 6584 transitions. [2019-12-27 14:46:10,635 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 6584 transitions. Word has length 86 [2019-12-27 14:46:10,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:46:10,635 INFO L462 AbstractCegarLoop]: Abstraction has 2517 states and 6584 transitions. [2019-12-27 14:46:10,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-12-27 14:46:10,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 6584 transitions. [2019-12-27 14:46:10,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:46:10,641 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:46:10,641 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:46:10,642 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:46:10,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:46:10,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1836366221, now seen corresponding path program 4 times [2019-12-27 14:46:10,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:46:10,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196336428] [2019-12-27 14:46:10,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:46:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:46:11,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:46:11,765 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196336428] [2019-12-27 14:46:11,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:46:11,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-12-27 14:46:11,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26075357] [2019-12-27 14:46:11,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-12-27 14:46:11,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:46:11,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-12-27 14:46:11,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2019-12-27 14:46:11,767 INFO L87 Difference]: Start difference. First operand 2517 states and 6584 transitions. Second operand 19 states. [2019-12-27 14:46:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:46:14,258 INFO L93 Difference]: Finished difference Result 3028 states and 7587 transitions. [2019-12-27 14:46:14,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-12-27 14:46:14,259 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 86 [2019-12-27 14:46:14,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:46:14,265 INFO L225 Difference]: With dead ends: 3028 [2019-12-27 14:46:14,265 INFO L226 Difference]: Without dead ends: 3028 [2019-12-27 14:46:14,266 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2019-12-27 14:46:14,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2019-12-27 14:46:14,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 2517. [2019-12-27 14:46:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2517 states. [2019-12-27 14:46:14,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 6584 transitions. [2019-12-27 14:46:14,331 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 6584 transitions. Word has length 86 [2019-12-27 14:46:14,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:46:14,331 INFO L462 AbstractCegarLoop]: Abstraction has 2517 states and 6584 transitions. [2019-12-27 14:46:14,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-12-27 14:46:14,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 6584 transitions. [2019-12-27 14:46:14,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:46:14,337 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:46:14,337 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:46:14,338 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:46:14,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:46:14,338 INFO L82 PathProgramCache]: Analyzing trace with hash 765944389, now seen corresponding path program 5 times [2019-12-27 14:46:14,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:46:14,339 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185557841] [2019-12-27 14:46:14,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:46:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:46:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:46:15,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185557841] [2019-12-27 14:46:15,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:46:15,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-12-27 14:46:15,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493763097] [2019-12-27 14:46:15,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-12-27 14:46:15,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:46:15,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-12-27 14:46:15,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2019-12-27 14:46:15,364 INFO L87 Difference]: Start difference. First operand 2517 states and 6584 transitions. Second operand 19 states. [2019-12-27 14:46:16,576 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-12-27 14:46:16,782 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-12-27 14:46:17,884 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-12-27 14:46:18,109 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-12-27 14:46:18,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:46:18,147 INFO L93 Difference]: Finished difference Result 3161 states and 7911 transitions. [2019-12-27 14:46:18,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-12-27 14:46:18,148 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 86 [2019-12-27 14:46:18,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:46:18,159 INFO L225 Difference]: With dead ends: 3161 [2019-12-27 14:46:18,159 INFO L226 Difference]: Without dead ends: 3161 [2019-12-27 14:46:18,160 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2019-12-27 14:46:18,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2019-12-27 14:46:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 2517. [2019-12-27 14:46:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2517 states. [2019-12-27 14:46:18,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 6584 transitions. [2019-12-27 14:46:18,266 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 6584 transitions. Word has length 86 [2019-12-27 14:46:18,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:46:18,267 INFO L462 AbstractCegarLoop]: Abstraction has 2517 states and 6584 transitions. [2019-12-27 14:46:18,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-12-27 14:46:18,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 6584 transitions. [2019-12-27 14:46:18,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:46:18,278 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:46:18,278 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:46:18,278 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:46:18,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:46:18,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1317732063, now seen corresponding path program 6 times [2019-12-27 14:46:18,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:46:18,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349826617] [2019-12-27 14:46:18,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:46:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:46:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:46:19,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349826617] [2019-12-27 14:46:19,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:46:19,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-12-27 14:46:19,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706692872] [2019-12-27 14:46:19,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-12-27 14:46:19,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:46:19,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-12-27 14:46:19,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-12-27 14:46:19,408 INFO L87 Difference]: Start difference. First operand 2517 states and 6584 transitions. Second operand 19 states. [2019-12-27 14:46:20,459 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-12-27 14:46:20,668 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-12-27 14:46:21,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:46:21,647 INFO L93 Difference]: Finished difference Result 2792 states and 7142 transitions. [2019-12-27 14:46:21,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 14:46:21,647 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 86 [2019-12-27 14:46:21,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:46:21,654 INFO L225 Difference]: With dead ends: 2792 [2019-12-27 14:46:21,655 INFO L226 Difference]: Without dead ends: 2792 [2019-12-27 14:46:21,655 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2019-12-27 14:46:21,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2019-12-27 14:46:21,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2372. [2019-12-27 14:46:21,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2372 states. [2019-12-27 14:46:21,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2372 states to 2372 states and 6244 transitions. [2019-12-27 14:46:21,706 INFO L78 Accepts]: Start accepts. Automaton has 2372 states and 6244 transitions. Word has length 86 [2019-12-27 14:46:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:46:21,707 INFO L462 AbstractCegarLoop]: Abstraction has 2372 states and 6244 transitions. [2019-12-27 14:46:21,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-12-27 14:46:21,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2372 states and 6244 transitions. [2019-12-27 14:46:21,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:46:21,713 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:46:21,713 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:46:21,713 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:46:21,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:46:21,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1017121035, now seen corresponding path program 7 times [2019-12-27 14:46:21,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:46:21,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809329472] [2019-12-27 14:46:21,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:46:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:46:23,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:46:23,568 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809329472] [2019-12-27 14:46:23,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:46:23,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:46:23,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306564232] [2019-12-27 14:46:23,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:46:23,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:46:23,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:46:23,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:46:23,570 INFO L87 Difference]: Start difference. First operand 2372 states and 6244 transitions. Second operand 25 states. [2019-12-27 14:46:24,648 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:46:24,877 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-12-27 14:46:25,198 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:46:25,498 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:46:26,391 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-12-27 14:46:26,679 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:46:27,033 WARN L192 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:46:27,374 WARN L192 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:46:27,740 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:46:28,340 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-12-27 14:46:28,588 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-12-27 14:46:28,864 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-12-27 14:46:29,220 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-12-27 14:46:29,470 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-12-27 14:46:29,749 WARN L192 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-12-27 14:46:30,024 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-12-27 14:46:30,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:46:30,036 INFO L93 Difference]: Finished difference Result 4487 states and 11386 transitions. [2019-12-27 14:46:30,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:46:30,036 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:46:30,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:46:30,048 INFO L225 Difference]: With dead ends: 4487 [2019-12-27 14:46:30,048 INFO L226 Difference]: Without dead ends: 4487 [2019-12-27 14:46:30,049 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=529, Invalid=1541, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:46:30,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4487 states. [2019-12-27 14:46:30,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4487 to 2504. [2019-12-27 14:46:30,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2504 states. [2019-12-27 14:46:30,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2504 states to 2504 states and 6601 transitions. [2019-12-27 14:46:30,109 INFO L78 Accepts]: Start accepts. Automaton has 2504 states and 6601 transitions. Word has length 86 [2019-12-27 14:46:30,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:46:30,110 INFO L462 AbstractCegarLoop]: Abstraction has 2504 states and 6601 transitions. [2019-12-27 14:46:30,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:46:30,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2504 states and 6601 transitions. [2019-12-27 14:46:30,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:46:30,120 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:46:30,120 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:46:30,120 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:46:30,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:46:30,121 INFO L82 PathProgramCache]: Analyzing trace with hash 662498285, now seen corresponding path program 8 times [2019-12-27 14:46:30,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:46:30,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917987337] [2019-12-27 14:46:30,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:46:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:46:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:46:31,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917987337] [2019-12-27 14:46:31,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:46:31,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:46:31,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943123395] [2019-12-27 14:46:31,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:46:31,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:46:31,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:46:31,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:46:31,962 INFO L87 Difference]: Start difference. First operand 2504 states and 6601 transitions. Second operand 25 states. [2019-12-27 14:46:32,736 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:46:32,991 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:46:33,215 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-12-27 14:46:33,559 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:46:33,853 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:46:34,208 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:46:35,131 WARN L192 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:46:35,546 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:46:35,878 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:46:36,244 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:46:36,873 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-12-27 14:46:37,171 WARN L192 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2019-12-27 14:46:37,486 WARN L192 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-12-27 14:46:37,794 WARN L192 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-12-27 14:46:38,065 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:46:38,356 WARN L192 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-12-27 14:46:38,661 WARN L192 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-12-27 14:46:38,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:46:38,684 INFO L93 Difference]: Finished difference Result 4496 states and 11416 transitions. [2019-12-27 14:46:38,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:46:38,684 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:46:38,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:46:38,692 INFO L225 Difference]: With dead ends: 4496 [2019-12-27 14:46:38,692 INFO L226 Difference]: Without dead ends: 4496 [2019-12-27 14:46:38,693 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=544, Invalid=1526, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:46:38,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4496 states. [2019-12-27 14:46:38,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4496 to 2570. [2019-12-27 14:46:38,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2570 states. [2019-12-27 14:46:38,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 6799 transitions. [2019-12-27 14:46:38,762 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 6799 transitions. Word has length 86 [2019-12-27 14:46:38,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:46:38,763 INFO L462 AbstractCegarLoop]: Abstraction has 2570 states and 6799 transitions. [2019-12-27 14:46:38,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:46:38,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 6799 transitions. [2019-12-27 14:46:38,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:46:38,769 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:46:38,770 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:46:38,770 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:46:38,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:46:38,770 INFO L82 PathProgramCache]: Analyzing trace with hash 2010011179, now seen corresponding path program 9 times [2019-12-27 14:46:38,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:46:38,771 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775416100] [2019-12-27 14:46:38,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:46:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:46:40,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:46:40,446 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775416100] [2019-12-27 14:46:40,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:46:40,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:46:40,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230380678] [2019-12-27 14:46:40,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:46:40,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:46:40,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:46:40,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:46:40,449 INFO L87 Difference]: Start difference. First operand 2570 states and 6799 transitions. Second operand 25 states. [2019-12-27 14:46:41,291 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:46:41,566 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:46:41,797 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-12-27 14:46:42,134 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:46:42,441 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:46:42,800 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:46:43,280 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-12-27 14:46:43,678 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-12-27 14:46:44,113 WARN L192 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-12-27 14:46:45,127 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2019-12-27 14:46:45,782 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-12-27 14:46:46,112 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-12-27 14:46:46,471 WARN L192 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-12-27 14:46:46,815 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-12-27 14:46:47,193 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:46:47,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:46:47,211 INFO L93 Difference]: Finished difference Result 4185 states and 10773 transitions. [2019-12-27 14:46:47,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-12-27 14:46:47,211 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:46:47,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:46:47,218 INFO L225 Difference]: With dead ends: 4185 [2019-12-27 14:46:47,219 INFO L226 Difference]: Without dead ends: 4185 [2019-12-27 14:46:47,220 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=523, Invalid=1369, Unknown=0, NotChecked=0, Total=1892 [2019-12-27 14:46:47,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4185 states. [2019-12-27 14:46:47,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4185 to 2834. [2019-12-27 14:46:47,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2834 states. [2019-12-27 14:46:47,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 7558 transitions. [2019-12-27 14:46:47,284 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 7558 transitions. Word has length 86 [2019-12-27 14:46:47,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:46:47,284 INFO L462 AbstractCegarLoop]: Abstraction has 2834 states and 7558 transitions. [2019-12-27 14:46:47,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:46:47,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 7558 transitions. [2019-12-27 14:46:47,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:46:47,290 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:46:47,290 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:46:47,291 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:46:47,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:46:47,291 INFO L82 PathProgramCache]: Analyzing trace with hash -366399279, now seen corresponding path program 10 times [2019-12-27 14:46:47,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:46:47,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527309585] [2019-12-27 14:46:47,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:46:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:46:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:46:49,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527309585] [2019-12-27 14:46:49,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:46:49,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:46:49,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378082314] [2019-12-27 14:46:49,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:46:49,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:46:49,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:46:49,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:46:49,254 INFO L87 Difference]: Start difference. First operand 2834 states and 7558 transitions. Second operand 25 states. [2019-12-27 14:46:50,302 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:46:50,532 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-12-27 14:46:50,860 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:46:51,172 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:46:51,496 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:46:51,978 WARN L192 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-12-27 14:46:52,372 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-12-27 14:46:52,781 WARN L192 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-12-27 14:46:53,763 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:46:54,111 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:46:54,811 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-12-27 14:46:55,129 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-12-27 14:46:55,473 WARN L192 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2019-12-27 14:46:55,826 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-12-27 14:46:56,155 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-12-27 14:46:56,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:46:56,172 INFO L93 Difference]: Finished difference Result 3976 states and 10218 transitions. [2019-12-27 14:46:56,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-27 14:46:56,172 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:46:56,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:46:56,176 INFO L225 Difference]: With dead ends: 3976 [2019-12-27 14:46:56,176 INFO L226 Difference]: Without dead ends: 3976 [2019-12-27 14:46:56,177 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=541, Invalid=1439, Unknown=0, NotChecked=0, Total=1980 [2019-12-27 14:46:56,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3976 states. [2019-12-27 14:46:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3976 to 2834. [2019-12-27 14:46:56,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2834 states. [2019-12-27 14:46:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 7558 transitions. [2019-12-27 14:46:56,229 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 7558 transitions. Word has length 86 [2019-12-27 14:46:56,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:46:56,230 INFO L462 AbstractCegarLoop]: Abstraction has 2834 states and 7558 transitions. [2019-12-27 14:46:56,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:46:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 7558 transitions. [2019-12-27 14:46:56,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:46:56,235 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:46:56,236 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:46:56,236 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:46:56,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:46:56,237 INFO L82 PathProgramCache]: Analyzing trace with hash 525276067, now seen corresponding path program 11 times [2019-12-27 14:46:56,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:46:56,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857303407] [2019-12-27 14:46:56,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:46:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:46:58,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:46:58,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857303407] [2019-12-27 14:46:58,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:46:58,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:46:58,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356471455] [2019-12-27 14:46:58,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:46:58,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:46:58,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:46:58,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:46:58,038 INFO L87 Difference]: Start difference. First operand 2834 states and 7558 transitions. Second operand 25 states. [2019-12-27 14:46:58,903 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:46:59,178 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:46:59,425 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-12-27 14:46:59,769 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:47:00,087 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:47:00,441 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:47:00,956 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-12-27 14:47:01,956 WARN L192 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:47:02,278 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:47:02,677 WARN L192 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:47:03,408 WARN L192 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-12-27 14:47:03,772 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-12-27 14:47:04,097 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-12-27 14:47:04,444 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-12-27 14:47:04,735 WARN L192 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:47:05,081 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-12-27 14:47:05,440 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-12-27 14:47:05,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:47:05,469 INFO L93 Difference]: Finished difference Result 4085 states and 10437 transitions. [2019-12-27 14:47:05,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:47:05,470 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:47:05,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:47:05,474 INFO L225 Difference]: With dead ends: 4085 [2019-12-27 14:47:05,474 INFO L226 Difference]: Without dead ends: 4085 [2019-12-27 14:47:05,475 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=559, Invalid=1511, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:47:05,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2019-12-27 14:47:05,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 2834. [2019-12-27 14:47:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2834 states. [2019-12-27 14:47:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 7558 transitions. [2019-12-27 14:47:05,535 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 7558 transitions. Word has length 86 [2019-12-27 14:47:05,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:47:05,536 INFO L462 AbstractCegarLoop]: Abstraction has 2834 states and 7558 transitions. [2019-12-27 14:47:05,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:47:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 7558 transitions. [2019-12-27 14:47:05,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:47:05,542 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:47:05,543 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:47:05,543 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:47:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:47:05,544 INFO L82 PathProgramCache]: Analyzing trace with hash -403905867, now seen corresponding path program 12 times [2019-12-27 14:47:05,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:47:05,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380766711] [2019-12-27 14:47:05,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:47:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:47:07,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:47:07,355 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380766711] [2019-12-27 14:47:07,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:47:07,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:47:07,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419687025] [2019-12-27 14:47:07,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:47:07,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:47:07,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:47:07,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:47:07,360 INFO L87 Difference]: Start difference. First operand 2834 states and 7558 transitions. Second operand 25 states. [2019-12-27 14:47:08,216 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:47:08,497 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:47:08,730 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-12-27 14:47:09,073 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:47:10,047 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-12-27 14:47:10,336 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-12-27 14:47:10,667 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:47:11,092 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:47:11,449 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:47:11,828 WARN L192 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:47:12,467 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-12-27 14:47:12,730 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-12-27 14:47:13,004 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-12-27 14:47:13,266 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-12-27 14:47:13,486 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-12-27 14:47:13,752 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2019-12-27 14:47:14,027 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-12-27 14:47:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:47:14,047 INFO L93 Difference]: Finished difference Result 3857 states and 9960 transitions. [2019-12-27 14:47:14,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:47:14,047 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:47:14,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:47:14,051 INFO L225 Difference]: With dead ends: 3857 [2019-12-27 14:47:14,051 INFO L226 Difference]: Without dead ends: 3857 [2019-12-27 14:47:14,053 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=514, Invalid=1556, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:47:14,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3857 states. [2019-12-27 14:47:14,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3857 to 2840. [2019-12-27 14:47:14,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2840 states. [2019-12-27 14:47:14,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 7573 transitions. [2019-12-27 14:47:14,101 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 7573 transitions. Word has length 86 [2019-12-27 14:47:14,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:47:14,102 INFO L462 AbstractCegarLoop]: Abstraction has 2840 states and 7573 transitions. [2019-12-27 14:47:14,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:47:14,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 7573 transitions. [2019-12-27 14:47:14,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:47:14,108 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:47:14,108 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:47:14,108 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:47:14,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:47:14,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1365191907, now seen corresponding path program 13 times [2019-12-27 14:47:14,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:47:14,111 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514848313] [2019-12-27 14:47:14,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:47:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:47:15,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:47:15,850 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514848313] [2019-12-27 14:47:15,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:47:15,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:47:15,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825319091] [2019-12-27 14:47:15,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:47:15,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:47:15,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:47:15,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:47:15,852 INFO L87 Difference]: Start difference. First operand 2840 states and 7573 transitions. Second operand 25 states. [2019-12-27 14:47:16,702 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:47:16,980 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:47:17,283 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:47:17,544 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:47:17,886 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:47:18,979 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-12-27 14:47:19,283 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:47:19,678 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:47:20,046 WARN L192 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:47:20,420 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:47:21,167 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-12-27 14:47:21,444 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-12-27 14:47:21,724 WARN L192 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-12-27 14:47:22,006 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-12-27 14:47:22,255 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-12-27 14:47:22,508 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-12-27 14:47:22,803 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-12-27 14:47:22,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:47:22,822 INFO L93 Difference]: Finished difference Result 7205 states and 18538 transitions. [2019-12-27 14:47:22,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:47:22,823 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:47:22,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:47:22,831 INFO L225 Difference]: With dead ends: 7205 [2019-12-27 14:47:22,831 INFO L226 Difference]: Without dead ends: 7205 [2019-12-27 14:47:22,832 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:47:22,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7205 states. [2019-12-27 14:47:22,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7205 to 2917. [2019-12-27 14:47:22,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2917 states. [2019-12-27 14:47:22,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 7804 transitions. [2019-12-27 14:47:22,905 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 7804 transitions. Word has length 86 [2019-12-27 14:47:22,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:47:22,905 INFO L462 AbstractCegarLoop]: Abstraction has 2917 states and 7804 transitions. [2019-12-27 14:47:22,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:47:22,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 7804 transitions. [2019-12-27 14:47:22,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:47:22,912 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:47:22,912 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:47:22,912 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:47:22,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:47:22,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1010569157, now seen corresponding path program 14 times [2019-12-27 14:47:22,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:47:22,913 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373611446] [2019-12-27 14:47:22,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:47:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:47:24,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:47:24,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373611446] [2019-12-27 14:47:24,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:47:24,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:47:24,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846076873] [2019-12-27 14:47:24,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:47:24,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:47:24,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:47:24,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:47:24,593 INFO L87 Difference]: Start difference. First operand 2917 states and 7804 transitions. Second operand 25 states. [2019-12-27 14:47:25,398 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:47:25,659 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:47:25,951 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:47:26,190 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:47:26,520 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:47:26,866 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:47:27,896 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:47:28,243 WARN L192 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:47:28,586 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:47:28,946 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:47:29,696 WARN L192 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-12-27 14:47:29,992 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2019-12-27 14:47:30,288 WARN L192 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-12-27 14:47:30,589 WARN L192 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-12-27 14:47:30,851 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:47:31,141 WARN L192 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-12-27 14:47:31,439 WARN L192 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-12-27 14:47:31,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:47:31,458 INFO L93 Difference]: Finished difference Result 7214 states and 18568 transitions. [2019-12-27 14:47:31,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:47:31,459 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:47:31,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:47:31,466 INFO L225 Difference]: With dead ends: 7214 [2019-12-27 14:47:31,466 INFO L226 Difference]: Without dead ends: 7214 [2019-12-27 14:47:31,467 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=543, Invalid=1527, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:47:31,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7214 states. [2019-12-27 14:47:31,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7214 to 2983. [2019-12-27 14:47:31,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2983 states. [2019-12-27 14:47:31,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 8002 transitions. [2019-12-27 14:47:31,542 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 8002 transitions. Word has length 86 [2019-12-27 14:47:31,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:47:31,542 INFO L462 AbstractCegarLoop]: Abstraction has 2983 states and 8002 transitions. [2019-12-27 14:47:31,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:47:31,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 8002 transitions. [2019-12-27 14:47:31,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:47:31,549 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:47:31,549 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:47:31,549 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:47:31,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:47:31,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1936885245, now seen corresponding path program 15 times [2019-12-27 14:47:31,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:47:31,550 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964434358] [2019-12-27 14:47:31,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:47:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:47:32,126 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2019-12-27 14:47:32,270 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2019-12-27 14:47:32,422 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2019-12-27 14:47:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:47:33,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964434358] [2019-12-27 14:47:33,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:47:33,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:47:33,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681074826] [2019-12-27 14:47:33,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:47:33,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:47:33,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:47:33,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:47:33,679 INFO L87 Difference]: Start difference. First operand 2983 states and 8002 transitions. Second operand 25 states. [2019-12-27 14:47:34,436 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:47:34,696 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:47:34,983 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:47:35,217 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:47:35,533 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:47:35,875 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:47:36,367 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-12-27 14:47:36,755 WARN L192 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-12-27 14:47:37,159 WARN L192 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-12-27 14:47:38,073 WARN L192 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2019-12-27 14:47:38,733 WARN L192 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-12-27 14:47:39,086 WARN L192 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-12-27 14:47:39,436 WARN L192 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-12-27 14:47:39,786 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-12-27 14:47:40,129 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:47:40,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:47:40,144 INFO L93 Difference]: Finished difference Result 6903 states and 17925 transitions. [2019-12-27 14:47:40,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-12-27 14:47:40,145 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:47:40,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:47:40,150 INFO L225 Difference]: With dead ends: 6903 [2019-12-27 14:47:40,150 INFO L226 Difference]: Without dead ends: 6903 [2019-12-27 14:47:40,151 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=522, Invalid=1370, Unknown=0, NotChecked=0, Total=1892 [2019-12-27 14:47:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6903 states. [2019-12-27 14:47:40,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6903 to 3049. [2019-12-27 14:47:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3049 states. [2019-12-27 14:47:40,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 8200 transitions. [2019-12-27 14:47:40,205 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 8200 transitions. Word has length 86 [2019-12-27 14:47:40,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:47:40,206 INFO L462 AbstractCegarLoop]: Abstraction has 3049 states and 8200 transitions. [2019-12-27 14:47:40,206 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:47:40,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 8200 transitions. [2019-12-27 14:47:40,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:47:40,212 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:47:40,212 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:47:40,212 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:47:40,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:47:40,213 INFO L82 PathProgramCache]: Analyzing trace with hash -18328407, now seen corresponding path program 16 times [2019-12-27 14:47:40,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:47:40,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865048549] [2019-12-27 14:47:40,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:47:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:47:40,786 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2019-12-27 14:47:42,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:47:42,209 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865048549] [2019-12-27 14:47:42,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:47:42,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:47:42,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376262234] [2019-12-27 14:47:42,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:47:42,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:47:42,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:47:42,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:47:42,211 INFO L87 Difference]: Start difference. First operand 3049 states and 8200 transitions. Second operand 25 states. [2019-12-27 14:47:43,003 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:47:43,270 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:47:43,590 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:47:43,829 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:47:44,167 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:47:44,523 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:47:45,047 WARN L192 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-12-27 14:47:45,443 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-12-27 14:47:45,874 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-12-27 14:47:46,849 WARN L192 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:47:47,182 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:47:47,960 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-12-27 14:47:48,307 WARN L192 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-12-27 14:47:48,695 WARN L192 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2019-12-27 14:47:49,048 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-12-27 14:47:49,412 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-12-27 14:47:49,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:47:49,428 INFO L93 Difference]: Finished difference Result 6694 states and 17370 transitions. [2019-12-27 14:47:49,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-27 14:47:49,428 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:47:49,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:47:49,434 INFO L225 Difference]: With dead ends: 6694 [2019-12-27 14:47:49,434 INFO L226 Difference]: Without dead ends: 6694 [2019-12-27 14:47:49,435 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=540, Invalid=1440, Unknown=0, NotChecked=0, Total=1980 [2019-12-27 14:47:49,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6694 states. [2019-12-27 14:47:49,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6694 to 3016. [2019-12-27 14:47:49,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3016 states. [2019-12-27 14:47:49,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3016 states to 3016 states and 8101 transitions. [2019-12-27 14:47:49,482 INFO L78 Accepts]: Start accepts. Automaton has 3016 states and 8101 transitions. Word has length 86 [2019-12-27 14:47:49,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:47:49,482 INFO L462 AbstractCegarLoop]: Abstraction has 3016 states and 8101 transitions. [2019-12-27 14:47:49,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:47:49,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3016 states and 8101 transitions. [2019-12-27 14:47:49,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:47:49,487 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:47:49,488 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:47:49,488 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:47:49,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:47:49,488 INFO L82 PathProgramCache]: Analyzing trace with hash 873346939, now seen corresponding path program 17 times [2019-12-27 14:47:49,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:47:49,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145778281] [2019-12-27 14:47:49,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:47:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:47:51,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:47:51,312 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145778281] [2019-12-27 14:47:51,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:47:51,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:47:51,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376776951] [2019-12-27 14:47:51,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:47:51,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:47:51,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:47:51,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:47:51,314 INFO L87 Difference]: Start difference. First operand 3016 states and 8101 transitions. Second operand 25 states. [2019-12-27 14:47:52,077 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:47:52,324 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:47:52,595 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:47:52,836 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:47:53,224 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:47:53,560 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:47:54,048 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-12-27 14:47:54,899 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:47:55,218 WARN L192 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:47:55,588 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:47:56,253 WARN L192 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-12-27 14:47:56,578 WARN L192 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-12-27 14:47:56,892 WARN L192 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-12-27 14:47:57,231 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-12-27 14:47:57,499 WARN L192 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:47:57,837 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-12-27 14:47:58,169 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-12-27 14:47:58,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:47:58,198 INFO L93 Difference]: Finished difference Result 6803 states and 17589 transitions. [2019-12-27 14:47:58,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:47:58,198 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:47:58,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:47:58,204 INFO L225 Difference]: With dead ends: 6803 [2019-12-27 14:47:58,204 INFO L226 Difference]: Without dead ends: 6803 [2019-12-27 14:47:58,205 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=558, Invalid=1512, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:47:58,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6803 states. [2019-12-27 14:47:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6803 to 2884. [2019-12-27 14:47:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2884 states. [2019-12-27 14:47:58,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2884 states to 2884 states and 7705 transitions. [2019-12-27 14:47:58,270 INFO L78 Accepts]: Start accepts. Automaton has 2884 states and 7705 transitions. Word has length 86 [2019-12-27 14:47:58,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:47:58,270 INFO L462 AbstractCegarLoop]: Abstraction has 2884 states and 7705 transitions. [2019-12-27 14:47:58,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:47:58,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2884 states and 7705 transitions. [2019-12-27 14:47:58,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:47:58,274 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:47:58,274 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:47:58,275 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:47:58,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:47:58,275 INFO L82 PathProgramCache]: Analyzing trace with hash -55834995, now seen corresponding path program 18 times [2019-12-27 14:47:58,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:47:58,276 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853564352] [2019-12-27 14:47:58,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:47:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:48:00,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:48:00,125 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853564352] [2019-12-27 14:48:00,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:48:00,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:48:00,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998383124] [2019-12-27 14:48:00,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:48:00,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:48:00,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:48:00,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:48:00,127 INFO L87 Difference]: Start difference. First operand 2884 states and 7705 transitions. Second operand 25 states. [2019-12-27 14:48:00,927 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:48:01,185 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:48:01,474 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:48:01,714 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 14:48:02,593 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-12-27 14:48:02,867 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-12-27 14:48:03,175 WARN L192 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:48:03,559 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:48:03,899 WARN L192 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:48:04,257 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:48:04,907 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-12-27 14:48:05,180 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-12-27 14:48:05,426 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-12-27 14:48:05,686 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-12-27 14:48:05,896 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-12-27 14:48:06,154 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2019-12-27 14:48:06,432 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-12-27 14:48:06,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:48:06,458 INFO L93 Difference]: Finished difference Result 6266 states and 16195 transitions. [2019-12-27 14:48:06,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:48:06,459 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:48:06,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:48:06,465 INFO L225 Difference]: With dead ends: 6266 [2019-12-27 14:48:06,465 INFO L226 Difference]: Without dead ends: 6266 [2019-12-27 14:48:06,466 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=513, Invalid=1557, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:48:06,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6266 states. [2019-12-27 14:48:06,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6266 to 2851. [2019-12-27 14:48:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2851 states. [2019-12-27 14:48:06,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 7606 transitions. [2019-12-27 14:48:06,540 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 7606 transitions. Word has length 86 [2019-12-27 14:48:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:48:06,540 INFO L462 AbstractCegarLoop]: Abstraction has 2851 states and 7606 transitions. [2019-12-27 14:48:06,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:48:06,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 7606 transitions. [2019-12-27 14:48:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:48:06,544 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:48:06,544 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:48:06,544 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:48:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:48:06,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1694489007, now seen corresponding path program 19 times [2019-12-27 14:48:06,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:48:06,545 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048094469] [2019-12-27 14:48:06,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:48:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:48:08,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:48:08,318 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048094469] [2019-12-27 14:48:08,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:48:08,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:48:08,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826994907] [2019-12-27 14:48:08,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:48:08,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:48:08,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:48:08,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:48:08,319 INFO L87 Difference]: Start difference. First operand 2851 states and 7606 transitions. Second operand 25 states. [2019-12-27 14:48:09,313 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:48:09,603 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:48:09,861 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-12-27 14:48:10,135 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:48:11,070 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-12-27 14:48:11,351 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:48:11,707 WARN L192 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:48:12,047 WARN L192 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:48:12,413 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:48:13,057 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-12-27 14:48:13,340 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-12-27 14:48:13,624 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-12-27 14:48:13,909 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-12-27 14:48:14,148 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-12-27 14:48:14,415 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-12-27 14:48:14,703 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-12-27 14:48:14,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:48:14,723 INFO L93 Difference]: Finished difference Result 5857 states and 14965 transitions. [2019-12-27 14:48:14,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:48:14,723 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:48:14,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:48:14,747 INFO L225 Difference]: With dead ends: 5857 [2019-12-27 14:48:14,747 INFO L226 Difference]: Without dead ends: 5857 [2019-12-27 14:48:14,748 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:48:14,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5857 states. [2019-12-27 14:48:14,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5857 to 2895. [2019-12-27 14:48:14,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2895 states. [2019-12-27 14:48:14,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 7738 transitions. [2019-12-27 14:48:14,794 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 7738 transitions. Word has length 86 [2019-12-27 14:48:14,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:48:14,794 INFO L462 AbstractCegarLoop]: Abstraction has 2895 states and 7738 transitions. [2019-12-27 14:48:14,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:48:14,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 7738 transitions. [2019-12-27 14:48:14,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:48:14,798 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:48:14,798 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:48:14,798 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:48:14,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:48:14,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1339866257, now seen corresponding path program 20 times [2019-12-27 14:48:14,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:48:14,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20072409] [2019-12-27 14:48:14,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:48:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:48:16,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:48:16,465 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20072409] [2019-12-27 14:48:16,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:48:16,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:48:16,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673273925] [2019-12-27 14:48:16,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:48:16,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:48:16,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:48:16,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:48:16,466 INFO L87 Difference]: Start difference. First operand 2895 states and 7738 transitions. Second operand 25 states. [2019-12-27 14:48:17,544 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:48:17,849 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:48:18,119 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-12-27 14:48:18,394 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:48:18,761 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:48:19,754 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:48:20,079 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:48:20,392 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:48:20,744 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:48:21,425 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-12-27 14:48:21,701 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2019-12-27 14:48:21,980 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-12-27 14:48:22,302 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-12-27 14:48:22,566 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:48:22,852 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-12-27 14:48:23,163 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-12-27 14:48:23,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:48:23,181 INFO L93 Difference]: Finished difference Result 7176 states and 18376 transitions. [2019-12-27 14:48:23,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:48:23,182 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:48:23,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:48:23,187 INFO L225 Difference]: With dead ends: 7176 [2019-12-27 14:48:23,187 INFO L226 Difference]: Without dead ends: 7176 [2019-12-27 14:48:23,188 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=543, Invalid=1527, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:48:23,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2019-12-27 14:48:23,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 2961. [2019-12-27 14:48:23,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2961 states. [2019-12-27 14:48:23,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 7936 transitions. [2019-12-27 14:48:23,238 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 7936 transitions. Word has length 86 [2019-12-27 14:48:23,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:48:23,238 INFO L462 AbstractCegarLoop]: Abstraction has 2961 states and 7936 transitions. [2019-12-27 14:48:23,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:48:23,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 7936 transitions. [2019-12-27 14:48:23,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:48:23,243 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:48:23,243 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:48:23,244 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:48:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:48:23,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1607588145, now seen corresponding path program 21 times [2019-12-27 14:48:23,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:48:23,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399230923] [2019-12-27 14:48:23,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:48:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:48:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:48:24,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399230923] [2019-12-27 14:48:24,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:48:24,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:48:24,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380883332] [2019-12-27 14:48:24,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:48:24,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:48:24,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:48:24,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:48:24,869 INFO L87 Difference]: Start difference. First operand 2961 states and 7936 transitions. Second operand 25 states. [2019-12-27 14:48:25,782 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:48:26,047 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:48:26,343 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:48:26,611 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-12-27 14:48:26,899 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:48:27,271 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:48:27,784 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-12-27 14:48:28,182 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-12-27 14:48:28,588 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-12-27 14:48:29,594 WARN L192 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2019-12-27 14:48:30,337 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-12-27 14:48:30,675 WARN L192 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-12-27 14:48:31,023 WARN L192 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-12-27 14:48:31,379 WARN L192 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-12-27 14:48:31,755 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:48:31,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:48:31,772 INFO L93 Difference]: Finished difference Result 6865 states and 17733 transitions. [2019-12-27 14:48:31,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-12-27 14:48:31,773 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:48:31,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:48:31,779 INFO L225 Difference]: With dead ends: 6865 [2019-12-27 14:48:31,779 INFO L226 Difference]: Without dead ends: 6865 [2019-12-27 14:48:31,780 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=522, Invalid=1370, Unknown=0, NotChecked=0, Total=1892 [2019-12-27 14:48:31,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6865 states. [2019-12-27 14:48:31,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6865 to 3027. [2019-12-27 14:48:31,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3027 states. [2019-12-27 14:48:31,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3027 states to 3027 states and 8134 transitions. [2019-12-27 14:48:31,830 INFO L78 Accepts]: Start accepts. Automaton has 3027 states and 8134 transitions. Word has length 86 [2019-12-27 14:48:31,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:48:31,830 INFO L462 AbstractCegarLoop]: Abstraction has 3027 states and 8134 transitions. [2019-12-27 14:48:31,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:48:31,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3027 states and 8134 transitions. [2019-12-27 14:48:31,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:48:31,835 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:48:31,836 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:48:31,836 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:48:31,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:48:31,836 INFO L82 PathProgramCache]: Analyzing trace with hash 310968693, now seen corresponding path program 22 times [2019-12-27 14:48:31,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:48:31,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502806312] [2019-12-27 14:48:31,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:48:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:48:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:48:33,546 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502806312] [2019-12-27 14:48:33,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:48:33,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:48:33,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856159317] [2019-12-27 14:48:33,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:48:33,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:48:33,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:48:33,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:48:33,548 INFO L87 Difference]: Start difference. First operand 3027 states and 8134 transitions. Second operand 25 states. [2019-12-27 14:48:34,639 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:48:34,959 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:48:35,221 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-12-27 14:48:35,525 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:48:35,899 WARN L192 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:48:36,455 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-12-27 14:48:36,866 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-12-27 14:48:37,285 WARN L192 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-12-27 14:48:38,331 WARN L192 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:48:38,647 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:48:39,463 WARN L192 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-12-27 14:48:39,808 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-12-27 14:48:40,166 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2019-12-27 14:48:40,523 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-12-27 14:48:40,906 WARN L192 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-12-27 14:48:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:48:40,926 INFO L93 Difference]: Finished difference Result 6656 states and 17178 transitions. [2019-12-27 14:48:40,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-27 14:48:40,927 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:48:40,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:48:40,934 INFO L225 Difference]: With dead ends: 6656 [2019-12-27 14:48:40,934 INFO L226 Difference]: Without dead ends: 6656 [2019-12-27 14:48:40,935 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=540, Invalid=1440, Unknown=0, NotChecked=0, Total=1980 [2019-12-27 14:48:40,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6656 states. [2019-12-27 14:48:40,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6656 to 2994. [2019-12-27 14:48:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2994 states. [2019-12-27 14:48:40,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2994 states to 2994 states and 8035 transitions. [2019-12-27 14:48:40,987 INFO L78 Accepts]: Start accepts. Automaton has 2994 states and 8035 transitions. Word has length 86 [2019-12-27 14:48:40,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:48:40,987 INFO L462 AbstractCegarLoop]: Abstraction has 2994 states and 8035 transitions. [2019-12-27 14:48:40,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:48:40,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2994 states and 8035 transitions. [2019-12-27 14:48:40,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:48:40,992 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:48:40,992 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:48:40,992 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:48:40,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:48:40,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1202644039, now seen corresponding path program 23 times [2019-12-27 14:48:40,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:48:40,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935853254] [2019-12-27 14:48:40,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:48:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:48:42,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:48:42,531 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935853254] [2019-12-27 14:48:42,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:48:42,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:48:42,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453561897] [2019-12-27 14:48:42,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:48:42,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:48:42,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:48:42,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:48:42,532 INFO L87 Difference]: Start difference. First operand 2994 states and 8035 transitions. Second operand 25 states. [2019-12-27 14:48:43,379 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:48:43,625 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:48:43,897 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:48:44,153 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-12-27 14:48:44,433 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-12-27 14:48:44,788 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:48:45,240 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-12-27 14:48:46,070 WARN L192 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:48:46,392 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:48:46,739 WARN L192 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:48:47,395 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-12-27 14:48:47,729 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-12-27 14:48:48,047 WARN L192 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-12-27 14:48:48,383 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-12-27 14:48:48,666 WARN L192 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:48:49,010 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-12-27 14:48:49,386 WARN L192 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-12-27 14:48:49,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:48:49,413 INFO L93 Difference]: Finished difference Result 6765 states and 17397 transitions. [2019-12-27 14:48:49,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:48:49,413 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:48:49,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:48:49,419 INFO L225 Difference]: With dead ends: 6765 [2019-12-27 14:48:49,419 INFO L226 Difference]: Without dead ends: 6765 [2019-12-27 14:48:49,420 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=558, Invalid=1512, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:48:49,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6765 states. [2019-12-27 14:48:49,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6765 to 2862. [2019-12-27 14:48:49,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2862 states. [2019-12-27 14:48:49,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 2862 states and 7639 transitions. [2019-12-27 14:48:49,467 INFO L78 Accepts]: Start accepts. Automaton has 2862 states and 7639 transitions. Word has length 86 [2019-12-27 14:48:49,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:48:49,467 INFO L462 AbstractCegarLoop]: Abstraction has 2862 states and 7639 transitions. [2019-12-27 14:48:49,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:48:49,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2862 states and 7639 transitions. [2019-12-27 14:48:49,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:48:49,470 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:48:49,470 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:48:49,470 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:48:49,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:48:49,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1959325003, now seen corresponding path program 24 times [2019-12-27 14:48:49,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:48:49,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947085511] [2019-12-27 14:48:49,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:48:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:48:50,039 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2019-12-27 14:48:50,192 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2019-12-27 14:48:50,339 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2019-12-27 14:48:50,499 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2019-12-27 14:48:50,656 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2019-12-27 14:48:51,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:48:51,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947085511] [2019-12-27 14:48:51,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:48:51,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:48:51,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720578895] [2019-12-27 14:48:51,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:48:51,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:48:51,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:48:51,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:48:51,844 INFO L87 Difference]: Start difference. First operand 2862 states and 7639 transitions. Second operand 25 states. [2019-12-27 14:48:52,670 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:48:52,935 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:48:53,237 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:48:53,499 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-12-27 14:48:54,327 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-12-27 14:48:54,562 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-12-27 14:48:54,893 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-12-27 14:48:55,307 WARN L192 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-12-27 14:48:55,683 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2019-12-27 14:48:56,074 WARN L192 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-12-27 14:48:56,750 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-12-27 14:48:57,003 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-12-27 14:48:57,251 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2019-12-27 14:48:57,511 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-12-27 14:48:57,722 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-12-27 14:48:57,976 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-12-27 14:48:58,257 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-12-27 14:48:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:48:58,275 INFO L93 Difference]: Finished difference Result 5424 states and 13778 transitions. [2019-12-27 14:48:58,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:48:58,276 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:48:58,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:48:58,281 INFO L225 Difference]: With dead ends: 5424 [2019-12-27 14:48:58,281 INFO L226 Difference]: Without dead ends: 5424 [2019-12-27 14:48:58,281 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=513, Invalid=1557, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:48:58,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5424 states. [2019-12-27 14:48:58,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5424 to 2864. [2019-12-27 14:48:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2864 states. [2019-12-27 14:48:58,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2864 states to 2864 states and 7644 transitions. [2019-12-27 14:48:58,327 INFO L78 Accepts]: Start accepts. Automaton has 2864 states and 7644 transitions. Word has length 86 [2019-12-27 14:48:58,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:48:58,327 INFO L462 AbstractCegarLoop]: Abstraction has 2864 states and 7644 transitions. [2019-12-27 14:48:58,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:48:58,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2864 states and 7644 transitions. [2019-12-27 14:48:58,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:48:58,330 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:48:58,330 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:48:58,330 INFO L410 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:48:58,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:48:58,330 INFO L82 PathProgramCache]: Analyzing trace with hash 2019758763, now seen corresponding path program 25 times [2019-12-27 14:48:58,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:48:58,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074957542] [2019-12-27 14:48:58,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:48:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:48:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:48:59,993 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074957542] [2019-12-27 14:48:59,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:48:59,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:48:59,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205649546] [2019-12-27 14:48:59,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:48:59,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:48:59,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:48:59,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:48:59,994 INFO L87 Difference]: Start difference. First operand 2864 states and 7644 transitions. Second operand 25 states. [2019-12-27 14:49:00,825 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:49:01,090 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:49:01,384 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:49:01,648 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-12-27 14:49:02,500 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-12-27 14:49:02,783 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-12-27 14:49:03,063 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-12-27 14:49:03,496 WARN L192 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-12-27 14:49:03,850 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2019-12-27 14:49:04,240 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-12-27 14:49:04,957 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-12-27 14:49:05,215 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-12-27 14:49:05,467 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2019-12-27 14:49:05,742 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-12-27 14:49:05,946 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-12-27 14:49:06,215 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-12-27 14:49:06,482 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-12-27 14:49:06,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:49:06,498 INFO L93 Difference]: Finished difference Result 5582 states and 14114 transitions. [2019-12-27 14:49:06,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:49:06,498 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:49:06,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:49:06,502 INFO L225 Difference]: With dead ends: 5582 [2019-12-27 14:49:06,503 INFO L226 Difference]: Without dead ends: 5582 [2019-12-27 14:49:06,503 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=513, Invalid=1557, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:49:06,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5582 states. [2019-12-27 14:49:06,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5582 to 2868. [2019-12-27 14:49:06,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2868 states. [2019-12-27 14:49:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2868 states to 2868 states and 7654 transitions. [2019-12-27 14:49:06,549 INFO L78 Accepts]: Start accepts. Automaton has 2868 states and 7654 transitions. Word has length 86 [2019-12-27 14:49:06,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:49:06,549 INFO L462 AbstractCegarLoop]: Abstraction has 2868 states and 7654 transitions. [2019-12-27 14:49:06,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:49:06,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2868 states and 7654 transitions. [2019-12-27 14:49:06,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:49:06,551 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:49:06,552 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:49:06,552 INFO L410 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:49:06,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:49:06,552 INFO L82 PathProgramCache]: Analyzing trace with hash -278730879, now seen corresponding path program 26 times [2019-12-27 14:49:06,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:49:06,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124149379] [2019-12-27 14:49:06,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:49:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:49:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:49:07,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124149379] [2019-12-27 14:49:07,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:49:07,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-12-27 14:49:07,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184922312] [2019-12-27 14:49:07,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-12-27 14:49:07,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:49:07,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-12-27 14:49:07,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2019-12-27 14:49:07,905 INFO L87 Difference]: Start difference. First operand 2868 states and 7654 transitions. Second operand 19 states. [2019-12-27 14:49:09,146 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-12-27 14:49:09,344 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-12-27 14:49:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:49:10,356 INFO L93 Difference]: Finished difference Result 3774 states and 9517 transitions. [2019-12-27 14:49:10,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-12-27 14:49:10,357 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 86 [2019-12-27 14:49:10,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:49:10,361 INFO L225 Difference]: With dead ends: 3774 [2019-12-27 14:49:10,361 INFO L226 Difference]: Without dead ends: 3774 [2019-12-27 14:49:10,361 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2019-12-27 14:49:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3774 states. [2019-12-27 14:49:10,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3774 to 2908. [2019-12-27 14:49:10,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2908 states. [2019-12-27 14:49:10,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 7752 transitions. [2019-12-27 14:49:10,433 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 7752 transitions. Word has length 86 [2019-12-27 14:49:10,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:49:10,433 INFO L462 AbstractCegarLoop]: Abstraction has 2908 states and 7752 transitions. [2019-12-27 14:49:10,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-12-27 14:49:10,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 7752 transitions. [2019-12-27 14:49:10,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:49:10,436 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:49:10,436 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:49:10,437 INFO L410 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:49:10,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:49:10,437 INFO L82 PathProgramCache]: Analyzing trace with hash 62879683, now seen corresponding path program 27 times [2019-12-27 14:49:10,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:49:10,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187323033] [2019-12-27 14:49:10,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:49:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:49:12,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:49:12,045 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187323033] [2019-12-27 14:49:12,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:49:12,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:49:12,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869141115] [2019-12-27 14:49:12,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:49:12,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:49:12,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:49:12,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:49:12,047 INFO L87 Difference]: Start difference. First operand 2908 states and 7752 transitions. Second operand 25 states. [2019-12-27 14:49:12,940 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2019-12-27 14:49:13,185 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-12-27 14:49:13,477 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2019-12-27 14:49:13,741 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2019-12-27 14:49:14,459 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-12-27 14:49:14,731 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-12-27 14:49:15,048 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-12-27 14:49:15,362 WARN L192 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-12-27 14:49:15,777 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-12-27 14:49:16,148 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-12-27 14:49:16,697 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-12-27 14:49:16,979 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-12-27 14:49:17,236 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-12-27 14:49:17,505 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-12-27 14:49:17,722 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-12-27 14:49:17,977 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-12-27 14:49:18,292 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-12-27 14:49:18,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:49:18,313 INFO L93 Difference]: Finished difference Result 5492 states and 13950 transitions. [2019-12-27 14:49:18,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:49:18,313 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:49:18,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:49:18,318 INFO L225 Difference]: With dead ends: 5492 [2019-12-27 14:49:18,318 INFO L226 Difference]: Without dead ends: 5492 [2019-12-27 14:49:18,318 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=511, Invalid=1559, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:49:18,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5492 states. [2019-12-27 14:49:18,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5492 to 2916. [2019-12-27 14:49:18,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2916 states. [2019-12-27 14:49:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 7772 transitions. [2019-12-27 14:49:18,363 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 7772 transitions. Word has length 86 [2019-12-27 14:49:18,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:49:18,364 INFO L462 AbstractCegarLoop]: Abstraction has 2916 states and 7772 transitions. [2019-12-27 14:49:18,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:49:18,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 7772 transitions. [2019-12-27 14:49:18,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:49:18,366 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:49:18,366 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:49:18,367 INFO L410 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:49:18,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:49:18,367 INFO L82 PathProgramCache]: Analyzing trace with hash 778022059, now seen corresponding path program 28 times [2019-12-27 14:49:18,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:49:18,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626149956] [2019-12-27 14:49:18,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:49:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:49:19,355 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2019-12-27 14:49:19,503 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2019-12-27 14:49:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:49:20,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626149956] [2019-12-27 14:49:20,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:49:20,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:49:20,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797313177] [2019-12-27 14:49:20,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:49:20,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:49:20,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:49:20,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:49:20,269 INFO L87 Difference]: Start difference. First operand 2916 states and 7772 transitions. Second operand 25 states. [2019-12-27 14:49:21,158 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2019-12-27 14:49:21,410 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-12-27 14:49:21,700 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2019-12-27 14:49:21,964 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2019-12-27 14:49:22,659 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-12-27 14:49:22,925 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-12-27 14:49:23,237 WARN L192 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-12-27 14:49:23,554 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-12-27 14:49:23,936 WARN L192 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-12-27 14:49:24,243 WARN L192 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-12-27 14:49:24,641 WARN L192 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-12-27 14:49:25,320 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-12-27 14:49:25,595 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-12-27 14:49:25,852 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-12-27 14:49:26,115 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-12-27 14:49:26,336 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-12-27 14:49:26,615 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-12-27 14:49:26,896 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-12-27 14:49:26,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:49:26,914 INFO L93 Difference]: Finished difference Result 5599 states and 14165 transitions. [2019-12-27 14:49:26,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-12-27 14:49:26,914 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:49:26,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:49:26,919 INFO L225 Difference]: With dead ends: 5599 [2019-12-27 14:49:26,919 INFO L226 Difference]: Without dead ends: 5599 [2019-12-27 14:49:26,919 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=545, Invalid=1617, Unknown=0, NotChecked=0, Total=2162 [2019-12-27 14:49:26,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5599 states. [2019-12-27 14:49:26,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5599 to 2916. [2019-12-27 14:49:26,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2916 states. [2019-12-27 14:49:26,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 7772 transitions. [2019-12-27 14:49:26,961 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 7772 transitions. Word has length 86 [2019-12-27 14:49:26,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:49:26,962 INFO L462 AbstractCegarLoop]: Abstraction has 2916 states and 7772 transitions. [2019-12-27 14:49:26,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:49:26,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 7772 transitions. [2019-12-27 14:49:26,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:49:26,964 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:49:26,965 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:49:26,965 INFO L410 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:49:26,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:49:26,965 INFO L82 PathProgramCache]: Analyzing trace with hash 164055275, now seen corresponding path program 29 times [2019-12-27 14:49:26,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:49:26,966 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531253581] [2019-12-27 14:49:26,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:49:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:49:28,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:49:28,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531253581] [2019-12-27 14:49:28,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:49:28,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:49:28,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249918055] [2019-12-27 14:49:28,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:49:28,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:49:28,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:49:28,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:49:28,670 INFO L87 Difference]: Start difference. First operand 2916 states and 7772 transitions. Second operand 25 states. [2019-12-27 14:49:29,501 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:49:29,756 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:49:30,052 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:49:30,310 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-12-27 14:49:30,614 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-12-27 14:49:30,922 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:49:32,028 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:49:32,376 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-12-27 14:49:32,737 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:49:33,092 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:49:33,829 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-12-27 14:49:34,106 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2019-12-27 14:49:34,405 WARN L192 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-12-27 14:49:34,686 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-12-27 14:49:34,951 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-27 14:49:35,226 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-12-27 14:49:35,562 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-12-27 14:49:35,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:49:35,580 INFO L93 Difference]: Finished difference Result 5826 states and 14868 transitions. [2019-12-27 14:49:35,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-27 14:49:35,581 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:49:35,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:49:35,585 INFO L225 Difference]: With dead ends: 5826 [2019-12-27 14:49:35,585 INFO L226 Difference]: Without dead ends: 5826 [2019-12-27 14:49:35,586 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=543, Invalid=1527, Unknown=0, NotChecked=0, Total=2070 [2019-12-27 14:49:35,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5826 states. [2019-12-27 14:49:35,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5826 to 3004. [2019-12-27 14:49:35,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3004 states. [2019-12-27 14:49:35,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 8036 transitions. [2019-12-27 14:49:35,630 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 8036 transitions. Word has length 86 [2019-12-27 14:49:35,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:49:35,630 INFO L462 AbstractCegarLoop]: Abstraction has 3004 states and 8036 transitions. [2019-12-27 14:49:35,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:49:35,630 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 8036 transitions. [2019-12-27 14:49:35,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:49:35,634 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:49:35,634 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:49:35,635 INFO L410 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:49:35,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:49:35,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1511568169, now seen corresponding path program 30 times [2019-12-27 14:49:35,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:49:35,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432483467] [2019-12-27 14:49:35,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:49:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:49:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:49:37,392 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432483467] [2019-12-27 14:49:37,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:49:37,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:49:37,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254335276] [2019-12-27 14:49:37,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:49:37,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:49:37,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:49:37,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:49:37,393 INFO L87 Difference]: Start difference. First operand 3004 states and 8036 transitions. Second operand 25 states. [2019-12-27 14:49:38,172 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-12-27 14:49:38,413 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:49:38,725 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:49:38,971 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-12-27 14:49:39,253 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-12-27 14:49:39,559 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:49:40,026 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-12-27 14:49:40,397 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-12-27 14:49:40,786 WARN L192 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-12-27 14:49:41,653 WARN L192 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2019-12-27 14:49:42,307 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-12-27 14:49:42,628 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-12-27 14:49:42,957 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-12-27 14:49:43,282 WARN L192 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-12-27 14:49:43,622 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:49:43,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:49:43,638 INFO L93 Difference]: Finished difference Result 6705 states and 17252 transitions. [2019-12-27 14:49:43,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-12-27 14:49:43,639 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:49:43,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:49:43,646 INFO L225 Difference]: With dead ends: 6705 [2019-12-27 14:49:43,646 INFO L226 Difference]: Without dead ends: 6705 [2019-12-27 14:49:43,646 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=522, Invalid=1370, Unknown=0, NotChecked=0, Total=1892 [2019-12-27 14:49:43,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6705 states. [2019-12-27 14:49:43,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6705 to 3070. [2019-12-27 14:49:43,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3070 states. [2019-12-27 14:49:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 8234 transitions. [2019-12-27 14:49:43,705 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 8234 transitions. Word has length 86 [2019-12-27 14:49:43,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:49:43,706 INFO L462 AbstractCegarLoop]: Abstraction has 3070 states and 8234 transitions. [2019-12-27 14:49:43,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:49:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 8234 transitions. [2019-12-27 14:49:43,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:49:43,708 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:49:43,708 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:49:43,709 INFO L410 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:49:43,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:49:43,709 INFO L82 PathProgramCache]: Analyzing trace with hash -864842289, now seen corresponding path program 31 times [2019-12-27 14:49:43,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:49:43,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347435616] [2019-12-27 14:49:43,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:49:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:49:45,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:49:45,266 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347435616] [2019-12-27 14:49:45,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:49:45,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-12-27 14:49:45,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264705582] [2019-12-27 14:49:45,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-27 14:49:45,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:49:45,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-27 14:49:45,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2019-12-27 14:49:45,267 INFO L87 Difference]: Start difference. First operand 3070 states and 8234 transitions. Second operand 25 states. [2019-12-27 14:49:46,271 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-12-27 14:49:46,535 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-27 14:49:46,774 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-12-27 14:49:47,065 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-12-27 14:49:47,353 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-12-27 14:49:47,857 WARN L192 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-12-27 14:49:48,223 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-12-27 14:49:48,618 WARN L192 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-12-27 14:49:49,454 WARN L192 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-12-27 14:49:49,759 WARN L192 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-12-27 14:49:50,411 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-12-27 14:49:50,741 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-12-27 14:49:51,114 WARN L192 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2019-12-27 14:49:51,433 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-12-27 14:49:51,799 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-12-27 14:49:51,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:49:51,815 INFO L93 Difference]: Finished difference Result 6496 states and 16697 transitions. [2019-12-27 14:49:51,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-27 14:49:51,816 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2019-12-27 14:49:51,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:49:51,822 INFO L225 Difference]: With dead ends: 6496 [2019-12-27 14:49:51,822 INFO L226 Difference]: Without dead ends: 6496 [2019-12-27 14:49:51,822 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=540, Invalid=1440, Unknown=0, NotChecked=0, Total=1980 [2019-12-27 14:49:51,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6496 states. [2019-12-27 14:49:51,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6496 to 3037. [2019-12-27 14:49:51,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3037 states. [2019-12-27 14:49:51,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 8135 transitions. [2019-12-27 14:49:51,875 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 8135 transitions. Word has length 86 [2019-12-27 14:49:51,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:49:51,875 INFO L462 AbstractCegarLoop]: Abstraction has 3037 states and 8135 transitions. [2019-12-27 14:49:51,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-27 14:49:51,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 8135 transitions. [2019-12-27 14:49:51,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 14:49:51,879 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:49:51,880 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:49:51,880 INFO L410 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:49:51,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:49:51,880 INFO L82 PathProgramCache]: Analyzing trace with hash 26833057, now seen corresponding path program 32 times [2019-12-27 14:49:51,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:49:51,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462093211] [2019-12-27 14:49:51,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:49:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2019-12-27 14:49:52,309 WARN L209 SmtUtils]: Removed 7 from assertion stack [2019-12-27 14:49:52,309 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 14:49:52,314 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 14:49:52,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 02:49:52 BasicIcfg [2019-12-27 14:49:52,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 14:49:52,316 INFO L168 Benchmark]: Toolchain (without parser) took 251690.85 ms. Allocated memory was 146.8 MB in the beginning and 560.5 MB in the end (delta: 413.7 MB). Free memory was 99.7 MB in the beginning and 159.7 MB in the end (delta: -60.1 MB). Peak memory consumption was 353.6 MB. Max. memory is 7.1 GB. [2019-12-27 14:49:52,316 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-27 14:49:52,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1464.60 ms. Allocated memory was 146.8 MB in the beginning and 235.4 MB in the end (delta: 88.6 MB). Free memory was 99.5 MB in the beginning and 166.0 MB in the end (delta: -66.6 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2019-12-27 14:49:52,316 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.67 ms. Allocated memory is still 235.4 MB. Free memory was 166.0 MB in the beginning and 163.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-12-27 14:49:52,316 INFO L168 Benchmark]: Boogie Preprocessor took 65.52 ms. Allocated memory is still 235.4 MB. Free memory was 163.3 MB in the beginning and 160.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-12-27 14:49:52,316 INFO L168 Benchmark]: RCFGBuilder took 808.56 ms. Allocated memory is still 235.4 MB. Free memory was 160.5 MB in the beginning and 115.9 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. [2019-12-27 14:49:52,317 INFO L168 Benchmark]: TraceAbstraction took 249214.71 ms. Allocated memory was 235.4 MB in the beginning and 560.5 MB in the end (delta: 325.1 MB). Free memory was 114.5 MB in the beginning and 159.7 MB in the end (delta: -45.2 MB). Peak memory consumption was 279.8 MB. Max. memory is 7.1 GB. [2019-12-27 14:49:52,326 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1464.60 ms. Allocated memory was 146.8 MB in the beginning and 235.4 MB in the end (delta: 88.6 MB). Free memory was 99.5 MB in the beginning and 166.0 MB in the end (delta: -66.6 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 132.67 ms. Allocated memory is still 235.4 MB. Free memory was 166.0 MB in the beginning and 163.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.52 ms. Allocated memory is still 235.4 MB. Free memory was 163.3 MB in the beginning and 160.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 808.56 ms. Allocated memory is still 235.4 MB. Free memory was 160.5 MB in the beginning and 115.9 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249214.71 ms. Allocated memory was 235.4 MB in the beginning and 560.5 MB in the end (delta: 325.1 MB). Free memory was 114.5 MB in the beginning and 159.7 MB in the end (delta: -45.2 MB). Peak memory consumption was 279.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 87 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24 for 11ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 87 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24 for 11ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 87 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24 for 11ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 87 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24 for 11ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 111 locations, 4 error locations. Result: TIMEOUT, OverallTime: 249.0s, OverallIterations: 36, TraceHistogramMax: 1, AutomataDifference: 191.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8796 SDtfs, 29282 SDslu, 77460 SDs, 0 SdLazy, 34155 SolverSat, 1872 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 60.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1525 GetRequests, 101 SyntacticMatches, 38 SemanticMatches, 1386 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7649 ImplicationChecksByTransitivity, 170.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5932occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 35 MinimizatonAttempts, 77062 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 51.2s InterpolantComputationTime, 2902 NumberOfCodeBlocks, 2902 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 2867 ConstructedInterpolants, 0 QuantifiedInterpolants, 3496956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 35 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown