/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:13:09,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:13:09,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:13:09,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:13:09,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:13:09,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:13:09,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:13:09,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:13:09,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:13:09,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:13:09,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:13:09,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:13:09,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:13:09,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:13:09,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:13:09,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:13:09,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:13:09,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:13:09,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:13:09,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:13:09,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:13:09,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:13:09,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:13:09,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:13:09,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:13:09,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:13:09,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:13:09,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:13:09,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:13:09,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:13:09,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:13:09,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:13:09,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:13:09,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:13:09,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:13:09,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:13:09,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:13:09,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:13:09,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:13:09,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:13:09,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:13:09,365 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:13:09,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:13:09,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:13:09,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:13:09,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:13:09,388 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:13:09,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:13:09,389 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:13:09,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:13:09,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:13:09,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:13:09,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:13:09,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:13:09,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:13:09,390 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:13:09,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:13:09,390 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:13:09,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:13:09,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:13:09,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:13:09,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:13:09,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:13:09,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:13:09,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:13:09,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:13:09,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:13:09,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:13:09,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:13:09,393 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:13:09,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:13:09,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:13:09,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:13:09,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:13:09,733 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:13:09,733 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:13:09,734 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2020-10-16 12:13:09,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/128b9da1c/48a4440412894869bc138dd101355f88/FLAG0b8c0c23b [2020-10-16 12:13:10,387 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:13:10,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2020-10-16 12:13:10,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/128b9da1c/48a4440412894869bc138dd101355f88/FLAG0b8c0c23b [2020-10-16 12:13:10,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/128b9da1c/48a4440412894869bc138dd101355f88 [2020-10-16 12:13:10,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:13:10,611 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:13:10,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:13:10,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:13:10,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:13:10,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:13:10" (1/1) ... [2020-10-16 12:13:10,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4b4aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:10, skipping insertion in model container [2020-10-16 12:13:10,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:13:10" (1/1) ... [2020-10-16 12:13:10,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:13:10,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:13:11,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:13:11,603 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:13:11,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:13:12,161 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:13:12,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12 WrapperNode [2020-10-16 12:13:12,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:13:12,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:13:12,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:13:12,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:13:12,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12" (1/1) ... [2020-10-16 12:13:12,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12" (1/1) ... [2020-10-16 12:13:12,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:13:12,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:13:12,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:13:12,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:13:12,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12" (1/1) ... [2020-10-16 12:13:12,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12" (1/1) ... [2020-10-16 12:13:12,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12" (1/1) ... [2020-10-16 12:13:12,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12" (1/1) ... [2020-10-16 12:13:12,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12" (1/1) ... [2020-10-16 12:13:12,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12" (1/1) ... [2020-10-16 12:13:12,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12" (1/1) ... [2020-10-16 12:13:12,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:13:12,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:13:12,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:13:12,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:13:12,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:13:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:13:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 12:13:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 12:13:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-16 12:13:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:13:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:13:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-10-16 12:13:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-10-16 12:13:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:13:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:13:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 12:13:12,383 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:13:13,009 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:13:13,009 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-16 12:13:13,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:13:13 BoogieIcfgContainer [2020-10-16 12:13:13,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:13:13,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:13:13,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:13:13,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:13:13,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:13:10" (1/3) ... [2020-10-16 12:13:13,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546d4c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:13:13, skipping insertion in model container [2020-10-16 12:13:13,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:12" (2/3) ... [2020-10-16 12:13:13,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546d4c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:13:13, skipping insertion in model container [2020-10-16 12:13:13,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:13:13" (3/3) ... [2020-10-16 12:13:13,022 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2020-10-16 12:13:13,036 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:13:13,036 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:13:13,045 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-16 12:13:13,046 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:13:13,081 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,082 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,082 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,082 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,083 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,083 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,083 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,083 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,084 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,084 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,084 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,084 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,084 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,085 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,085 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,085 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,085 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,086 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,086 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,086 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,086 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,087 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,087 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,087 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,088 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,088 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,088 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,088 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,089 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,089 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,089 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,089 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,090 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,090 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,090 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,090 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,091 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,091 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,091 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,091 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,092 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,092 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,092 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,093 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,093 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,093 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,093 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,094 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,094 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,094 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,094 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,094 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,095 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,095 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,096 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,096 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,096 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,096 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,100 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,100 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,100 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,101 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,101 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,101 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,101 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,102 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,102 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,102 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,108 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,108 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,108 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,109 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,109 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,109 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,109 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,110 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,110 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,110 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:13,121 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 12:13:13,135 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-16 12:13:13,157 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:13:13,157 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:13:13,158 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:13:13,158 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:13:13,158 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:13:13,158 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:13:13,158 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:13:13,159 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:13:13,177 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:13:13,178 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 154 transitions, 330 flow [2020-10-16 12:13:13,181 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 154 transitions, 330 flow [2020-10-16 12:13:13,183 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 150 places, 154 transitions, 330 flow [2020-10-16 12:13:13,279 INFO L129 PetriNetUnfolder]: 11/192 cut-off events. [2020-10-16 12:13:13,279 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 12:13:13,285 INFO L80 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 192 events. 11/192 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 370 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2020-10-16 12:13:13,291 INFO L117 LiptonReduction]: Number of co-enabled transitions 2652 [2020-10-16 12:13:14,271 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:14,312 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:14,317 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:14,339 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:14,340 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:14,341 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:106, output treesize:78 [2020-10-16 12:13:15,825 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:15,844 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:15,847 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:15,862 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:15,864 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:15,865 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:99, output treesize:71 [2020-10-16 12:13:17,296 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-16 12:13:17,840 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-16 12:13:17,869 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:18,020 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-16 12:13:18,022 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:18,034 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:18,227 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-16 12:13:18,227 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:18,229 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:18,229 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:187, output treesize:199 [2020-10-16 12:13:18,425 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-16 12:13:19,609 WARN L193 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2020-10-16 12:13:20,008 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-16 12:13:20,510 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2020-10-16 12:13:20,790 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-16 12:13:20,803 INFO L132 LiptonReduction]: Checked pairs total: 6338 [2020-10-16 12:13:20,804 INFO L134 LiptonReduction]: Total number of compositions: 174 [2020-10-16 12:13:20,811 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 38 transitions, 98 flow [2020-10-16 12:13:20,845 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 388 states. [2020-10-16 12:13:20,848 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states. [2020-10-16 12:13:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-16 12:13:20,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:20,855 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-16 12:13:20,855 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:20,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:20,861 INFO L82 PathProgramCache]: Analyzing trace with hash 560, now seen corresponding path program 1 times [2020-10-16 12:13:20,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:20,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895455070] [2020-10-16 12:13:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:21,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:21,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895455070] [2020-10-16 12:13:21,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:21,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-16 12:13:21,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766767367] [2020-10-16 12:13:21,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 12:13:21,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:21,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 12:13:21,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 12:13:21,193 INFO L87 Difference]: Start difference. First operand 388 states. Second operand 2 states. [2020-10-16 12:13:21,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:21,230 INFO L93 Difference]: Finished difference Result 386 states and 932 transitions. [2020-10-16 12:13:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 12:13:21,234 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-16 12:13:21,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:21,270 INFO L225 Difference]: With dead ends: 386 [2020-10-16 12:13:21,270 INFO L226 Difference]: Without dead ends: 348 [2020-10-16 12:13:21,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 12:13:21,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-16 12:13:21,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2020-10-16 12:13:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-10-16 12:13:21,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 834 transitions. [2020-10-16 12:13:21,354 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 834 transitions. Word has length 1 [2020-10-16 12:13:21,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:21,354 INFO L481 AbstractCegarLoop]: Abstraction has 348 states and 834 transitions. [2020-10-16 12:13:21,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 12:13:21,355 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 834 transitions. [2020-10-16 12:13:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-16 12:13:21,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:21,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-16 12:13:21,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:13:21,356 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:21,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:21,357 INFO L82 PathProgramCache]: Analyzing trace with hash 17264254, now seen corresponding path program 1 times [2020-10-16 12:13:21,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:21,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515489078] [2020-10-16 12:13:21,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:21,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:21,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515489078] [2020-10-16 12:13:21,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:21,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:13:21,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901353586] [2020-10-16 12:13:21,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:13:21,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:21,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:13:21,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:21,545 INFO L87 Difference]: Start difference. First operand 348 states and 834 transitions. Second operand 3 states. [2020-10-16 12:13:21,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:21,640 INFO L93 Difference]: Finished difference Result 471 states and 1125 transitions. [2020-10-16 12:13:21,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:13:21,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-16 12:13:21,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:21,647 INFO L225 Difference]: With dead ends: 471 [2020-10-16 12:13:21,647 INFO L226 Difference]: Without dead ends: 471 [2020-10-16 12:13:21,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:21,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-10-16 12:13:21,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 407. [2020-10-16 12:13:21,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-10-16 12:13:21,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 989 transitions. [2020-10-16 12:13:21,679 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 989 transitions. Word has length 4 [2020-10-16 12:13:21,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:21,679 INFO L481 AbstractCegarLoop]: Abstraction has 407 states and 989 transitions. [2020-10-16 12:13:21,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:13:21,679 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 989 transitions. [2020-10-16 12:13:21,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 12:13:21,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:21,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 12:13:21,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:13:21,680 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:21,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:21,681 INFO L82 PathProgramCache]: Analyzing trace with hash 535191473, now seen corresponding path program 1 times [2020-10-16 12:13:21,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:21,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444116985] [2020-10-16 12:13:21,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:21,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:21,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444116985] [2020-10-16 12:13:21,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:21,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:13:21,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094864401] [2020-10-16 12:13:21,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:13:21,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:21,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:13:21,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:21,758 INFO L87 Difference]: Start difference. First operand 407 states and 989 transitions. Second operand 3 states. [2020-10-16 12:13:21,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:21,835 INFO L93 Difference]: Finished difference Result 498 states and 1196 transitions. [2020-10-16 12:13:21,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:13:21,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 12:13:21,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:21,841 INFO L225 Difference]: With dead ends: 498 [2020-10-16 12:13:21,841 INFO L226 Difference]: Without dead ends: 482 [2020-10-16 12:13:21,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:21,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-10-16 12:13:21,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 450. [2020-10-16 12:13:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-16 12:13:21,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1111 transitions. [2020-10-16 12:13:21,863 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1111 transitions. Word has length 5 [2020-10-16 12:13:21,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:21,863 INFO L481 AbstractCegarLoop]: Abstraction has 450 states and 1111 transitions. [2020-10-16 12:13:21,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:13:21,863 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1111 transitions. [2020-10-16 12:13:21,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:13:21,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:21,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:21,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:13:21,865 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:21,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:21,866 INFO L82 PathProgramCache]: Analyzing trace with hash -40110202, now seen corresponding path program 1 times [2020-10-16 12:13:21,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:21,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735466784] [2020-10-16 12:13:21,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:21,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735466784] [2020-10-16 12:13:21,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:21,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:13:21,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897468006] [2020-10-16 12:13:21,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:13:21,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:21,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:13:21,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:21,979 INFO L87 Difference]: Start difference. First operand 450 states and 1111 transitions. Second operand 3 states. [2020-10-16 12:13:22,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:22,000 INFO L93 Difference]: Finished difference Result 162 states and 347 transitions. [2020-10-16 12:13:22,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:13:22,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 12:13:22,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:22,002 INFO L225 Difference]: With dead ends: 162 [2020-10-16 12:13:22,002 INFO L226 Difference]: Without dead ends: 162 [2020-10-16 12:13:22,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:22,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-16 12:13:22,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-16 12:13:22,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-16 12:13:22,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 347 transitions. [2020-10-16 12:13:22,009 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 347 transitions. Word has length 10 [2020-10-16 12:13:22,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:22,009 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 347 transitions. [2020-10-16 12:13:22,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:13:22,009 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 347 transitions. [2020-10-16 12:13:22,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:22,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:22,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:22,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:13:22,012 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:22,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:22,013 INFO L82 PathProgramCache]: Analyzing trace with hash 52394444, now seen corresponding path program 1 times [2020-10-16 12:13:22,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:22,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13814025] [2020-10-16 12:13:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:22,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13814025] [2020-10-16 12:13:22,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:22,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:13:22,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018087011] [2020-10-16 12:13:22,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:13:22,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:22,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:13:22,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:13:22,157 INFO L87 Difference]: Start difference. First operand 162 states and 347 transitions. Second operand 6 states. [2020-10-16 12:13:22,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:22,314 INFO L93 Difference]: Finished difference Result 206 states and 427 transitions. [2020-10-16 12:13:22,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:13:22,314 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-16 12:13:22,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:22,316 INFO L225 Difference]: With dead ends: 206 [2020-10-16 12:13:22,317 INFO L226 Difference]: Without dead ends: 206 [2020-10-16 12:13:22,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:13:22,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-16 12:13:22,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 194. [2020-10-16 12:13:22,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-16 12:13:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 405 transitions. [2020-10-16 12:13:22,325 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 405 transitions. Word has length 22 [2020-10-16 12:13:22,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:22,325 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 405 transitions. [2020-10-16 12:13:22,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:13:22,325 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 405 transitions. [2020-10-16 12:13:22,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:22,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:22,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:22,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:13:22,328 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:22,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:22,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1309120554, now seen corresponding path program 1 times [2020-10-16 12:13:22,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:22,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791520495] [2020-10-16 12:13:22,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:23,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:23,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791520495] [2020-10-16 12:13:23,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:23,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:23,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519226090] [2020-10-16 12:13:23,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:23,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:23,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:23,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:23,092 INFO L87 Difference]: Start difference. First operand 194 states and 405 transitions. Second operand 12 states. [2020-10-16 12:13:24,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:24,247 INFO L93 Difference]: Finished difference Result 314 states and 604 transitions. [2020-10-16 12:13:24,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-16 12:13:24,248 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:24,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:24,252 INFO L225 Difference]: With dead ends: 314 [2020-10-16 12:13:24,252 INFO L226 Difference]: Without dead ends: 314 [2020-10-16 12:13:24,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:24,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-10-16 12:13:24,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 248. [2020-10-16 12:13:24,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-10-16 12:13:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 493 transitions. [2020-10-16 12:13:24,262 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 493 transitions. Word has length 22 [2020-10-16 12:13:24,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:24,262 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 493 transitions. [2020-10-16 12:13:24,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:24,263 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 493 transitions. [2020-10-16 12:13:24,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:24,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:24,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:24,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:13:24,265 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:24,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:24,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1309120544, now seen corresponding path program 1 times [2020-10-16 12:13:24,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:24,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432648100] [2020-10-16 12:13:24,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:24,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:24,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432648100] [2020-10-16 12:13:24,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:24,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:13:24,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147186446] [2020-10-16 12:13:24,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:13:24,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:24,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:13:24,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:13:24,652 INFO L87 Difference]: Start difference. First operand 248 states and 493 transitions. Second operand 8 states. [2020-10-16 12:13:25,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:25,002 INFO L93 Difference]: Finished difference Result 369 states and 697 transitions. [2020-10-16 12:13:25,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:13:25,003 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-16 12:13:25,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:25,006 INFO L225 Difference]: With dead ends: 369 [2020-10-16 12:13:25,006 INFO L226 Difference]: Without dead ends: 319 [2020-10-16 12:13:25,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:25,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-10-16 12:13:25,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 247. [2020-10-16 12:13:25,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-16 12:13:25,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 491 transitions. [2020-10-16 12:13:25,016 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 491 transitions. Word has length 22 [2020-10-16 12:13:25,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:25,017 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 491 transitions. [2020-10-16 12:13:25,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:13:25,017 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 491 transitions. [2020-10-16 12:13:25,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:25,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:25,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:25,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:13:25,019 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:25,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:25,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1413732572, now seen corresponding path program 2 times [2020-10-16 12:13:25,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:25,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061979074] [2020-10-16 12:13:25,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:25,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061979074] [2020-10-16 12:13:25,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:25,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:13:25,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971767823] [2020-10-16 12:13:25,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:13:25,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:25,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:13:25,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:13:25,169 INFO L87 Difference]: Start difference. First operand 247 states and 491 transitions. Second operand 4 states. [2020-10-16 12:13:25,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:25,199 INFO L93 Difference]: Finished difference Result 162 states and 259 transitions. [2020-10-16 12:13:25,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:13:25,199 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-10-16 12:13:25,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:25,201 INFO L225 Difference]: With dead ends: 162 [2020-10-16 12:13:25,201 INFO L226 Difference]: Without dead ends: 157 [2020-10-16 12:13:25,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:13:25,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-16 12:13:25,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2020-10-16 12:13:25,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-16 12:13:25,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 253 transitions. [2020-10-16 12:13:25,208 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 253 transitions. Word has length 22 [2020-10-16 12:13:25,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:25,209 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 253 transitions. [2020-10-16 12:13:25,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:13:25,209 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 253 transitions. [2020-10-16 12:13:25,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:25,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:25,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:25,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:13:25,210 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:25,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:25,211 INFO L82 PathProgramCache]: Analyzing trace with hash 472795278, now seen corresponding path program 2 times [2020-10-16 12:13:25,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:25,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898261297] [2020-10-16 12:13:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:25,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898261297] [2020-10-16 12:13:25,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:25,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:13:25,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509577929] [2020-10-16 12:13:25,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:13:25,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:25,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:13:25,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:13:25,484 INFO L87 Difference]: Start difference. First operand 156 states and 253 transitions. Second operand 8 states. [2020-10-16 12:13:25,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:25,918 INFO L93 Difference]: Finished difference Result 177 states and 284 transitions. [2020-10-16 12:13:25,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:13:25,919 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-16 12:13:25,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:25,920 INFO L225 Difference]: With dead ends: 177 [2020-10-16 12:13:25,921 INFO L226 Difference]: Without dead ends: 177 [2020-10-16 12:13:25,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:25,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-16 12:13:25,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 155. [2020-10-16 12:13:25,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-16 12:13:25,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 252 transitions. [2020-10-16 12:13:25,929 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 252 transitions. Word has length 22 [2020-10-16 12:13:25,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:25,929 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 252 transitions. [2020-10-16 12:13:25,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:13:25,930 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 252 transitions. [2020-10-16 12:13:25,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:25,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:25,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:25,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:13:25,931 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:25,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:25,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1729521388, now seen corresponding path program 3 times [2020-10-16 12:13:25,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:25,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097020001] [2020-10-16 12:13:25,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:26,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097020001] [2020-10-16 12:13:26,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:26,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:26,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438856465] [2020-10-16 12:13:26,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:26,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:26,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:26,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:26,515 INFO L87 Difference]: Start difference. First operand 155 states and 252 transitions. Second operand 12 states. [2020-10-16 12:13:27,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:27,155 INFO L93 Difference]: Finished difference Result 168 states and 264 transitions. [2020-10-16 12:13:27,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:27,156 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:27,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:27,157 INFO L225 Difference]: With dead ends: 168 [2020-10-16 12:13:27,157 INFO L226 Difference]: Without dead ends: 155 [2020-10-16 12:13:27,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2020-10-16 12:13:27,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-10-16 12:13:27,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2020-10-16 12:13:27,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-16 12:13:27,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 251 transitions. [2020-10-16 12:13:27,167 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 251 transitions. Word has length 22 [2020-10-16 12:13:27,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:27,168 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 251 transitions. [2020-10-16 12:13:27,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:27,169 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 251 transitions. [2020-10-16 12:13:27,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:27,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:27,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:27,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:13:27,170 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:27,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:27,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1716865024, now seen corresponding path program 3 times [2020-10-16 12:13:27,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:27,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548523465] [2020-10-16 12:13:27,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:27,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:27,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548523465] [2020-10-16 12:13:27,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:27,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:13:27,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010051044] [2020-10-16 12:13:27,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:13:27,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:27,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:13:27,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:13:27,468 INFO L87 Difference]: Start difference. First operand 155 states and 251 transitions. Second operand 8 states. [2020-10-16 12:13:27,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:27,945 INFO L93 Difference]: Finished difference Result 150 states and 237 transitions. [2020-10-16 12:13:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:13:27,946 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-16 12:13:27,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:27,947 INFO L225 Difference]: With dead ends: 150 [2020-10-16 12:13:27,947 INFO L226 Difference]: Without dead ends: 150 [2020-10-16 12:13:27,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:27,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-16 12:13:27,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 130. [2020-10-16 12:13:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-16 12:13:27,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 207 transitions. [2020-10-16 12:13:27,951 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 207 transitions. Word has length 22 [2020-10-16 12:13:27,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:27,952 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 207 transitions. [2020-10-16 12:13:27,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:13:27,952 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 207 transitions. [2020-10-16 12:13:27,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:27,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:27,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:27,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:13:27,954 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:27,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:27,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1321376162, now seen corresponding path program 4 times [2020-10-16 12:13:27,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:27,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139147539] [2020-10-16 12:13:27,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:28,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:28,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139147539] [2020-10-16 12:13:28,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:28,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:28,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63227948] [2020-10-16 12:13:28,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:28,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:28,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:28,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:28,513 INFO L87 Difference]: Start difference. First operand 130 states and 207 transitions. Second operand 12 states. [2020-10-16 12:13:29,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:29,207 INFO L93 Difference]: Finished difference Result 142 states and 218 transitions. [2020-10-16 12:13:29,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 12:13:29,207 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:29,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:29,209 INFO L225 Difference]: With dead ends: 142 [2020-10-16 12:13:29,209 INFO L226 Difference]: Without dead ends: 130 [2020-10-16 12:13:29,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-10-16 12:13:29,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-16 12:13:29,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-16 12:13:29,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-16 12:13:29,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 205 transitions. [2020-10-16 12:13:29,214 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 205 transitions. Word has length 22 [2020-10-16 12:13:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:29,214 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 205 transitions. [2020-10-16 12:13:29,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:29,214 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 205 transitions. [2020-10-16 12:13:29,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:29,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:29,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:29,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 12:13:29,216 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:29,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:29,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1455400266, now seen corresponding path program 5 times [2020-10-16 12:13:29,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:29,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717450315] [2020-10-16 12:13:29,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:29,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717450315] [2020-10-16 12:13:29,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:29,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:29,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911004659] [2020-10-16 12:13:29,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:29,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:29,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:29,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:29,802 INFO L87 Difference]: Start difference. First operand 130 states and 205 transitions. Second operand 12 states. [2020-10-16 12:13:30,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:30,490 INFO L93 Difference]: Finished difference Result 149 states and 230 transitions. [2020-10-16 12:13:30,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 12:13:30,490 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:30,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:30,491 INFO L225 Difference]: With dead ends: 149 [2020-10-16 12:13:30,492 INFO L226 Difference]: Without dead ends: 149 [2020-10-16 12:13:30,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:13:30,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-16 12:13:30,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 148. [2020-10-16 12:13:30,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-16 12:13:30,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 230 transitions. [2020-10-16 12:13:30,499 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 230 transitions. Word has length 22 [2020-10-16 12:13:30,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:30,500 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 230 transitions. [2020-10-16 12:13:30,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:30,500 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 230 transitions. [2020-10-16 12:13:30,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:30,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:30,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:30,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 12:13:30,501 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:30,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:30,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1455400276, now seen corresponding path program 2 times [2020-10-16 12:13:30,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:30,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566419091] [2020-10-16 12:13:30,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:30,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566419091] [2020-10-16 12:13:30,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:30,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:13:30,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018452432] [2020-10-16 12:13:30,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:13:30,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:30,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:13:30,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:13:30,808 INFO L87 Difference]: Start difference. First operand 148 states and 230 transitions. Second operand 8 states. [2020-10-16 12:13:31,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:31,079 INFO L93 Difference]: Finished difference Result 191 states and 287 transitions. [2020-10-16 12:13:31,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:13:31,079 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-16 12:13:31,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:31,080 INFO L225 Difference]: With dead ends: 191 [2020-10-16 12:13:31,081 INFO L226 Difference]: Without dead ends: 165 [2020-10-16 12:13:31,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:31,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-16 12:13:31,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 128. [2020-10-16 12:13:31,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-16 12:13:31,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 199 transitions. [2020-10-16 12:13:31,087 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 199 transitions. Word has length 22 [2020-10-16 12:13:31,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:31,089 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 199 transitions. [2020-10-16 12:13:31,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:13:31,089 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 199 transitions. [2020-10-16 12:13:31,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:31,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:31,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:31,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 12:13:31,091 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:31,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:31,092 INFO L82 PathProgramCache]: Analyzing trace with hash 2057875200, now seen corresponding path program 4 times [2020-10-16 12:13:31,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:31,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31240670] [2020-10-16 12:13:31,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:31,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:31,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31240670] [2020-10-16 12:13:31,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:31,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-16 12:13:31,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094508176] [2020-10-16 12:13:31,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:31,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:31,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:31,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:31,794 INFO L87 Difference]: Start difference. First operand 128 states and 199 transitions. Second operand 14 states. [2020-10-16 12:13:33,120 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-10-16 12:13:33,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:33,430 INFO L93 Difference]: Finished difference Result 186 states and 293 transitions. [2020-10-16 12:13:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-16 12:13:33,431 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-10-16 12:13:33,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:33,432 INFO L225 Difference]: With dead ends: 186 [2020-10-16 12:13:33,433 INFO L226 Difference]: Without dead ends: 177 [2020-10-16 12:13:33,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2020-10-16 12:13:33,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-16 12:13:33,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 127. [2020-10-16 12:13:33,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-16 12:13:33,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 197 transitions. [2020-10-16 12:13:33,439 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 197 transitions. Word has length 22 [2020-10-16 12:13:33,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:33,439 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 197 transitions. [2020-10-16 12:13:33,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:33,440 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 197 transitions. [2020-10-16 12:13:33,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:33,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:33,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:33,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 12:13:33,441 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:33,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:33,441 INFO L82 PathProgramCache]: Analyzing trace with hash -761551564, now seen corresponding path program 6 times [2020-10-16 12:13:33,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:33,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804538898] [2020-10-16 12:13:33,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:33,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804538898] [2020-10-16 12:13:33,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:33,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:33,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834903026] [2020-10-16 12:13:33,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:33,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:33,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:33,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:33,948 INFO L87 Difference]: Start difference. First operand 127 states and 197 transitions. Second operand 12 states. [2020-10-16 12:13:34,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:34,551 INFO L93 Difference]: Finished difference Result 139 states and 209 transitions. [2020-10-16 12:13:34,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 12:13:34,552 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:34,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:34,553 INFO L225 Difference]: With dead ends: 139 [2020-10-16 12:13:34,553 INFO L226 Difference]: Without dead ends: 128 [2020-10-16 12:13:34,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:13:34,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-16 12:13:34,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2020-10-16 12:13:34,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-16 12:13:34,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 189 transitions. [2020-10-16 12:13:34,557 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 189 transitions. Word has length 22 [2020-10-16 12:13:34,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:34,558 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 189 transitions. [2020-10-16 12:13:34,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:34,558 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 189 transitions. [2020-10-16 12:13:34,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:34,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:34,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:34,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 12:13:34,559 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:34,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:34,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1633571078, now seen corresponding path program 5 times [2020-10-16 12:13:34,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:34,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043108716] [2020-10-16 12:13:34,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:35,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:35,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043108716] [2020-10-16 12:13:35,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:35,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-16 12:13:35,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445682292] [2020-10-16 12:13:35,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-16 12:13:35,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:35,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-16 12:13:35,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-10-16 12:13:35,022 INFO L87 Difference]: Start difference. First operand 123 states and 189 transitions. Second operand 15 states. [2020-10-16 12:13:36,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:36,489 INFO L93 Difference]: Finished difference Result 160 states and 251 transitions. [2020-10-16 12:13:36,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-16 12:13:36,489 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 22 [2020-10-16 12:13:36,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:36,491 INFO L225 Difference]: With dead ends: 160 [2020-10-16 12:13:36,491 INFO L226 Difference]: Without dead ends: 152 [2020-10-16 12:13:36,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=219, Invalid=711, Unknown=0, NotChecked=0, Total=930 [2020-10-16 12:13:36,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-16 12:13:36,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 112. [2020-10-16 12:13:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-16 12:13:36,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 172 transitions. [2020-10-16 12:13:36,497 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 172 transitions. Word has length 22 [2020-10-16 12:13:36,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:36,497 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 172 transitions. [2020-10-16 12:13:36,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-16 12:13:36,498 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 172 transitions. [2020-10-16 12:13:36,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:36,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:36,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:36,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 12:13:36,499 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:36,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:36,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1314893868, now seen corresponding path program 7 times [2020-10-16 12:13:36,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:36,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219827335] [2020-10-16 12:13:36,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:37,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:37,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219827335] [2020-10-16 12:13:37,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:37,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:37,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859756282] [2020-10-16 12:13:37,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:37,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:37,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:37,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:37,022 INFO L87 Difference]: Start difference. First operand 112 states and 172 transitions. Second operand 12 states. [2020-10-16 12:13:37,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:37,634 INFO L93 Difference]: Finished difference Result 120 states and 179 transitions. [2020-10-16 12:13:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 12:13:37,635 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:37,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:37,636 INFO L225 Difference]: With dead ends: 120 [2020-10-16 12:13:37,636 INFO L226 Difference]: Without dead ends: 96 [2020-10-16 12:13:37,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:13:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-16 12:13:37,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-10-16 12:13:37,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-16 12:13:37,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 147 transitions. [2020-10-16 12:13:37,639 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 147 transitions. Word has length 22 [2020-10-16 12:13:37,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:37,640 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 147 transitions. [2020-10-16 12:13:37,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:37,640 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 147 transitions. [2020-10-16 12:13:37,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:37,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:37,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:37,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-16 12:13:37,642 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:37,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:37,642 INFO L82 PathProgramCache]: Analyzing trace with hash -149449002, now seen corresponding path program 8 times [2020-10-16 12:13:37,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:37,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887747157] [2020-10-16 12:13:37,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:38,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:38,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887747157] [2020-10-16 12:13:38,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:38,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:38,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21197363] [2020-10-16 12:13:38,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:38,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:38,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:38,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:38,164 INFO L87 Difference]: Start difference. First operand 96 states and 147 transitions. Second operand 12 states. [2020-10-16 12:13:38,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:38,743 INFO L93 Difference]: Finished difference Result 96 states and 146 transitions. [2020-10-16 12:13:38,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 12:13:38,744 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:38,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:38,744 INFO L225 Difference]: With dead ends: 96 [2020-10-16 12:13:38,744 INFO L226 Difference]: Without dead ends: 81 [2020-10-16 12:13:38,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:13:38,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-16 12:13:38,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-10-16 12:13:38,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-16 12:13:38,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 131 transitions. [2020-10-16 12:13:38,748 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 131 transitions. Word has length 22 [2020-10-16 12:13:38,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:38,748 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 131 transitions. [2020-10-16 12:13:38,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:38,749 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 131 transitions. [2020-10-16 12:13:38,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:38,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:38,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:38,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-16 12:13:38,749 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:38,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:38,750 INFO L82 PathProgramCache]: Analyzing trace with hash -552633476, now seen corresponding path program 9 times [2020-10-16 12:13:38,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:38,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492056438] [2020-10-16 12:13:38,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:39,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492056438] [2020-10-16 12:13:39,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:39,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:39,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574027208] [2020-10-16 12:13:39,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:39,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:39,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:39,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:39,511 INFO L87 Difference]: Start difference. First operand 81 states and 131 transitions. Second operand 12 states. [2020-10-16 12:13:40,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:40,138 INFO L93 Difference]: Finished difference Result 112 states and 176 transitions. [2020-10-16 12:13:40,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 12:13:40,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:40,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:40,140 INFO L225 Difference]: With dead ends: 112 [2020-10-16 12:13:40,140 INFO L226 Difference]: Without dead ends: 112 [2020-10-16 12:13:40,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:13:40,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-16 12:13:40,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2020-10-16 12:13:40,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-16 12:13:40,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 176 transitions. [2020-10-16 12:13:40,145 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 176 transitions. Word has length 22 [2020-10-16 12:13:40,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:40,145 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 176 transitions. [2020-10-16 12:13:40,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:40,145 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 176 transitions. [2020-10-16 12:13:40,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:40,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:40,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:40,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 12:13:40,146 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:40,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:40,146 INFO L82 PathProgramCache]: Analyzing trace with hash -552633486, now seen corresponding path program 3 times [2020-10-16 12:13:40,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:40,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797782920] [2020-10-16 12:13:40,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:40,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:40,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797782920] [2020-10-16 12:13:40,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:40,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:13:40,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478169895] [2020-10-16 12:13:40,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:13:40,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:40,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:13:40,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:13:40,397 INFO L87 Difference]: Start difference. First operand 111 states and 176 transitions. Second operand 8 states. [2020-10-16 12:13:40,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:40,661 INFO L93 Difference]: Finished difference Result 136 states and 213 transitions. [2020-10-16 12:13:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:13:40,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-16 12:13:40,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:40,663 INFO L225 Difference]: With dead ends: 136 [2020-10-16 12:13:40,663 INFO L226 Difference]: Without dead ends: 105 [2020-10-16 12:13:40,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:40,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-16 12:13:40,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-16 12:13:40,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-16 12:13:40,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 167 transitions. [2020-10-16 12:13:40,667 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 167 transitions. Word has length 22 [2020-10-16 12:13:40,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:40,667 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 167 transitions. [2020-10-16 12:13:40,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:13:40,667 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 167 transitions. [2020-10-16 12:13:40,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:40,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:40,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:40,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-16 12:13:40,668 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:40,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:40,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1930461660, now seen corresponding path program 10 times [2020-10-16 12:13:40,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:40,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064950238] [2020-10-16 12:13:40,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:41,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:41,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064950238] [2020-10-16 12:13:41,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:41,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:41,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158177998] [2020-10-16 12:13:41,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:41,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:41,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:41,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:41,362 INFO L87 Difference]: Start difference. First operand 105 states and 167 transitions. Second operand 12 states. [2020-10-16 12:13:42,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:42,043 INFO L93 Difference]: Finished difference Result 136 states and 213 transitions. [2020-10-16 12:13:42,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 12:13:42,044 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:42,044 INFO L225 Difference]: With dead ends: 136 [2020-10-16 12:13:42,045 INFO L226 Difference]: Without dead ends: 94 [2020-10-16 12:13:42,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:13:42,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-16 12:13:42,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-10-16 12:13:42,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-16 12:13:42,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 149 transitions. [2020-10-16 12:13:42,048 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 149 transitions. Word has length 22 [2020-10-16 12:13:42,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:42,049 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 149 transitions. [2020-10-16 12:13:42,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:42,049 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 149 transitions. [2020-10-16 12:13:42,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:42,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:42,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:42,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-16 12:13:42,050 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:42,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:42,050 INFO L82 PathProgramCache]: Analyzing trace with hash 571806310, now seen corresponding path program 11 times [2020-10-16 12:13:42,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:42,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363982250] [2020-10-16 12:13:42,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:42,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:42,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363982250] [2020-10-16 12:13:42,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:42,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:42,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519727] [2020-10-16 12:13:42,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:42,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:42,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:42,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:42,649 INFO L87 Difference]: Start difference. First operand 94 states and 149 transitions. Second operand 12 states. [2020-10-16 12:13:43,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:43,324 INFO L93 Difference]: Finished difference Result 124 states and 194 transitions. [2020-10-16 12:13:43,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 12:13:43,325 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:43,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:43,326 INFO L225 Difference]: With dead ends: 124 [2020-10-16 12:13:43,326 INFO L226 Difference]: Without dead ends: 94 [2020-10-16 12:13:43,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:13:43,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-16 12:13:43,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-10-16 12:13:43,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-16 12:13:43,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 147 transitions. [2020-10-16 12:13:43,330 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 147 transitions. Word has length 22 [2020-10-16 12:13:43,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:43,330 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 147 transitions. [2020-10-16 12:13:43,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:43,330 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 147 transitions. [2020-10-16 12:13:43,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:43,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:43,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:43,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-16 12:13:43,331 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:43,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:43,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1853019498, now seen corresponding path program 12 times [2020-10-16 12:13:43,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:43,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3407589] [2020-10-16 12:13:43,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:43,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:43,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3407589] [2020-10-16 12:13:43,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:43,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:43,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173383181] [2020-10-16 12:13:43,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:43,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:43,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:43,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:43,990 INFO L87 Difference]: Start difference. First operand 94 states and 147 transitions. Second operand 12 states. [2020-10-16 12:13:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:44,654 INFO L93 Difference]: Finished difference Result 112 states and 171 transitions. [2020-10-16 12:13:44,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 12:13:44,655 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:44,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:44,656 INFO L225 Difference]: With dead ends: 112 [2020-10-16 12:13:44,656 INFO L226 Difference]: Without dead ends: 112 [2020-10-16 12:13:44,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:13:44,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-16 12:13:44,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2020-10-16 12:13:44,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-16 12:13:44,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 171 transitions. [2020-10-16 12:13:44,659 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 171 transitions. Word has length 22 [2020-10-16 12:13:44,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:44,660 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 171 transitions. [2020-10-16 12:13:44,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:44,660 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 171 transitions. [2020-10-16 12:13:44,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:44,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:44,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:44,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-16 12:13:44,661 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:44,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:44,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1853019508, now seen corresponding path program 4 times [2020-10-16 12:13:44,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:44,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662079451] [2020-10-16 12:13:44,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:44,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:44,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662079451] [2020-10-16 12:13:44,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:44,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:13:44,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571752216] [2020-10-16 12:13:44,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:13:44,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:44,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:13:44,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:13:44,902 INFO L87 Difference]: Start difference. First operand 111 states and 171 transitions. Second operand 8 states. [2020-10-16 12:13:45,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:45,177 INFO L93 Difference]: Finished difference Result 120 states and 181 transitions. [2020-10-16 12:13:45,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:13:45,178 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-16 12:13:45,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:45,179 INFO L225 Difference]: With dead ends: 120 [2020-10-16 12:13:45,179 INFO L226 Difference]: Without dead ends: 95 [2020-10-16 12:13:45,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:45,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-16 12:13:45,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 68. [2020-10-16 12:13:45,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-16 12:13:45,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 106 transitions. [2020-10-16 12:13:45,182 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 106 transitions. Word has length 22 [2020-10-16 12:13:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:45,183 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 106 transitions. [2020-10-16 12:13:45,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:13:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 106 transitions. [2020-10-16 12:13:45,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:45,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:45,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:45,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-16 12:13:45,184 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:45,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:45,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1877323498, now seen corresponding path program 13 times [2020-10-16 12:13:45,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:45,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112582290] [2020-10-16 12:13:45,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:45,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112582290] [2020-10-16 12:13:45,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:45,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:45,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139256509] [2020-10-16 12:13:45,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:45,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:45,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:45,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:45,831 INFO L87 Difference]: Start difference. First operand 68 states and 106 transitions. Second operand 12 states. [2020-10-16 12:13:46,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:46,532 INFO L93 Difference]: Finished difference Result 94 states and 141 transitions. [2020-10-16 12:13:46,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 12:13:46,532 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:46,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:46,533 INFO L225 Difference]: With dead ends: 94 [2020-10-16 12:13:46,533 INFO L226 Difference]: Without dead ends: 77 [2020-10-16 12:13:46,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-10-16 12:13:46,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-16 12:13:46,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 68. [2020-10-16 12:13:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-16 12:13:46,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 104 transitions. [2020-10-16 12:13:46,536 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 104 transitions. Word has length 22 [2020-10-16 12:13:46,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:46,537 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 104 transitions. [2020-10-16 12:13:46,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 104 transitions. [2020-10-16 12:13:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:46,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:46,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:46,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-16 12:13:46,538 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:46,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:46,538 INFO L82 PathProgramCache]: Analyzing trace with hash 280732566, now seen corresponding path program 14 times [2020-10-16 12:13:46,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:46,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062921612] [2020-10-16 12:13:46,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:47,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:47,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062921612] [2020-10-16 12:13:47,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:47,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:47,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253988972] [2020-10-16 12:13:47,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:47,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:47,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:47,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:47,040 INFO L87 Difference]: Start difference. First operand 68 states and 104 transitions. Second operand 12 states. [2020-10-16 12:13:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:47,602 INFO L93 Difference]: Finished difference Result 86 states and 125 transitions. [2020-10-16 12:13:47,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 12:13:47,602 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:47,603 INFO L225 Difference]: With dead ends: 86 [2020-10-16 12:13:47,603 INFO L226 Difference]: Without dead ends: 59 [2020-10-16 12:13:47,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:13:47,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-16 12:13:47,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 50. [2020-10-16 12:13:47,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-16 12:13:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 74 transitions. [2020-10-16 12:13:47,605 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 74 transitions. Word has length 22 [2020-10-16 12:13:47,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:47,605 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 74 transitions. [2020-10-16 12:13:47,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:47,606 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 74 transitions. [2020-10-16 12:13:47,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:13:47,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:47,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:47,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-16 12:13:47,608 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:47,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:47,608 INFO L82 PathProgramCache]: Analyzing trace with hash 779226054, now seen corresponding path program 15 times [2020-10-16 12:13:47,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:47,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498101021] [2020-10-16 12:13:47,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:48,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498101021] [2020-10-16 12:13:48,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:48,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:13:48,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728868552] [2020-10-16 12:13:48,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:13:48,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:48,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:13:48,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:13:48,224 INFO L87 Difference]: Start difference. First operand 50 states and 74 transitions. Second operand 12 states. [2020-10-16 12:13:48,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:48,751 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-10-16 12:13:48,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 12:13:48,752 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:13:48,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:48,752 INFO L225 Difference]: With dead ends: 49 [2020-10-16 12:13:48,752 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:13:48,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:13:48,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:13:48,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:13:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:13:48,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:13:48,754 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-10-16 12:13:48,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:48,754 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:13:48,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:13:48,754 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:13:48,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:13:48,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-16 12:13:48,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:13:48 BasicIcfg [2020-10-16 12:13:48,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:13:48,760 INFO L168 Benchmark]: Toolchain (without parser) took 38149.09 ms. Allocated memory was 148.4 MB in the beginning and 527.4 MB in the end (delta: 379.1 MB). Free memory was 99.8 MB in the beginning and 113.9 MB in the end (delta: -14.1 MB). Peak memory consumption was 365.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:48,760 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 148.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:13:48,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1550.35 ms. Allocated memory was 148.4 MB in the beginning and 236.5 MB in the end (delta: 88.1 MB). Free memory was 99.6 MB in the beginning and 168.9 MB in the end (delta: -69.3 MB). Peak memory consumption was 71.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:48,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.89 ms. Allocated memory is still 236.5 MB. Free memory was 168.9 MB in the beginning and 164.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:48,762 INFO L168 Benchmark]: Boogie Preprocessor took 45.10 ms. Allocated memory is still 236.5 MB. Free memory was 164.6 MB in the beginning and 161.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:48,762 INFO L168 Benchmark]: RCFGBuilder took 711.49 ms. Allocated memory is still 236.5 MB. Free memory was 161.8 MB in the beginning and 113.7 MB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:48,763 INFO L168 Benchmark]: TraceAbstraction took 35744.49 ms. Allocated memory was 236.5 MB in the beginning and 527.4 MB in the end (delta: 291.0 MB). Free memory was 113.7 MB in the beginning and 113.9 MB in the end (delta: -252.5 kB). Peak memory consumption was 290.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:48,765 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 148.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1550.35 ms. Allocated memory was 148.4 MB in the beginning and 236.5 MB in the end (delta: 88.1 MB). Free memory was 99.6 MB in the beginning and 168.9 MB in the end (delta: -69.3 MB). Peak memory consumption was 71.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 91.89 ms. Allocated memory is still 236.5 MB. Free memory was 168.9 MB in the beginning and 164.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.10 ms. Allocated memory is still 236.5 MB. Free memory was 164.6 MB in the beginning and 161.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 711.49 ms. Allocated memory is still 236.5 MB. Free memory was 161.8 MB in the beginning and 113.7 MB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35744.49 ms. Allocated memory was 236.5 MB in the beginning and 527.4 MB in the end (delta: 291.0 MB). Free memory was 113.7 MB in the beginning and 113.9 MB in the end (delta: -252.5 kB). Peak memory consumption was 290.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1400 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 69 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.6s, 150 PlacesBefore, 40 PlacesAfterwards, 154 TransitionsBefore, 38 TransitionsAfterwards, 2652 CoEnabledTransitionPairs, 7 FixpointIterations, 90 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 16 ConcurrentYvCompositions, 6 ChoiceCompositions, 174 TotalNumberOfCompositions, 6338 MoverChecksTotal - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 35.6s, OverallIterations: 28, TraceHistogramMax: 1, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.6s, HoareTripleCheckerStatistics: 677 SDtfs, 948 SDslu, 2210 SDs, 0 SdLazy, 5479 SolverSat, 454 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 416 GetRequests, 23 SyntacticMatches, 35 SemanticMatches, 358 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=450occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 28 MinimizatonAttempts, 469 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 548 NumberOfCodeBlocks, 548 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 238053 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...