/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:17:12,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:17:12,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:17:12,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:17:12,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:17:12,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:17:12,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:17:12,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:17:12,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:17:12,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:17:12,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:17:12,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:17:12,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:17:12,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:17:12,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:17:12,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:17:12,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:17:12,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:17:12,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:17:12,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:17:12,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:17:12,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:17:12,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:17:12,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:17:12,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:17:12,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:17:12,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:17:12,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:17:12,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:17:12,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:17:12,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:17:12,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:17:12,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:17:12,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:17:12,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:17:12,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:17:12,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:17:12,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:17:12,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:17:12,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:17:12,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:17:12,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-04-18 07:17:12,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:17:12,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:17:12,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:17:12,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:17:12,918 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:17:12,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:17:12,919 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:17:12,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:17:12,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:17:12,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:17:12,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:17:12,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:17:12,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:17:12,922 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:17:12,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:17:12,923 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:17:12,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:17:12,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:17:12,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:17:12,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:17:12,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:17:12,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:17:12,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:17:12,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:17:12,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:17:12,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 07:17:12,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:17:12,927 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 07:17:12,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:17:12,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:17:13,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:17:13,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:17:13,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:17:13,287 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:17:13,287 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:17:13,288 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2020-04-18 07:17:13,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3453fd32/bf210d9af1534b989dd882bd40ffe8df/FLAGc60525f07 [2020-04-18 07:17:14,022 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:17:14,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2020-04-18 07:17:14,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3453fd32/bf210d9af1534b989dd882bd40ffe8df/FLAGc60525f07 [2020-04-18 07:17:14,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3453fd32/bf210d9af1534b989dd882bd40ffe8df [2020-04-18 07:17:14,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:17:14,203 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:17:14,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:17:14,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:17:14,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:17:14,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:17:14" (1/1) ... [2020-04-18 07:17:14,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ddcac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:14, skipping insertion in model container [2020-04-18 07:17:14,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:17:14" (1/1) ... [2020-04-18 07:17:14,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:17:14,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:17:15,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:17:15,119 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:17:15,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:17:15,576 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:17:15,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15 WrapperNode [2020-04-18 07:17:15,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:17:15,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:17:15,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:17:15,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:17:15,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15" (1/1) ... [2020-04-18 07:17:15,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15" (1/1) ... [2020-04-18 07:17:15,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:17:15,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:17:15,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:17:15,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:17:15,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15" (1/1) ... [2020-04-18 07:17:15,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15" (1/1) ... [2020-04-18 07:17:15,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15" (1/1) ... [2020-04-18 07:17:15,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15" (1/1) ... [2020-04-18 07:17:15,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15" (1/1) ... [2020-04-18 07:17:15,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15" (1/1) ... [2020-04-18 07:17:15,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15" (1/1) ... [2020-04-18 07:17:15,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:17:15,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:17:15,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:17:15,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:17:15,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:17:15,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:17:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 07:17:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 07:17:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-04-18 07:17:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:17:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:17:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-04-18 07:17:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-04-18 07:17:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:17:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:17:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 07:17:15,792 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 07:17:16,546 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:17:16,546 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-04-18 07:17:16,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:17:16 BoogieIcfgContainer [2020-04-18 07:17:16,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:17:16,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:17:16,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:17:16,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:17:16,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:17:14" (1/3) ... [2020-04-18 07:17:16,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206eec97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:17:16, skipping insertion in model container [2020-04-18 07:17:16,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:15" (2/3) ... [2020-04-18 07:17:16,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206eec97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:17:16, skipping insertion in model container [2020-04-18 07:17:16,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:17:16" (3/3) ... [2020-04-18 07:17:16,568 INFO L109 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2020-04-18 07:17:16,578 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:17:16,579 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:17:16,587 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-04-18 07:17:16,588 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:17:16,618 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,619 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,619 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,619 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,620 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,620 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,620 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,620 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,620 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,621 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,621 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,621 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,621 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,621 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,622 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,622 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,622 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,622 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,623 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,623 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,623 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,623 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,624 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,624 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,624 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,624 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,625 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,625 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,625 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,625 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,626 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,626 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,626 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,626 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,627 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,627 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,627 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,627 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,627 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,628 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,628 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,628 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,629 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,629 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,629 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,629 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,630 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,630 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,630 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,630 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,631 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,631 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,631 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,631 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,632 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,632 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,632 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,633 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,637 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,637 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,638 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,638 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,638 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,638 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,639 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,639 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,639 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,639 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,644 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,645 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,645 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,645 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,646 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,646 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,646 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,646 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,646 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,647 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:17:16,674 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-04-18 07:17:16,695 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:17:16,695 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:17:16,696 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:17:16,696 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:17:16,696 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:17:16,696 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:17:16,696 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:17:16,697 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:17:16,713 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 150 places, 154 transitions, 330 flow [2020-04-18 07:17:17,029 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7540 states. [2020-04-18 07:17:17,032 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states. [2020-04-18 07:17:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 07:17:17,044 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:17,046 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:17,047 INFO L427 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]=== [2020-04-18 07:17:17,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:17,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1462968341, now seen corresponding path program 1 times [2020-04-18 07:17:17,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:17,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734585924] [2020-04-18 07:17:17,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:17,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:17,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734585924] [2020-04-18 07:17:17,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:17,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:17:17,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126409804] [2020-04-18 07:17:17,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:17:17,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:17,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:17:17,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:17:17,668 INFO L87 Difference]: Start difference. First operand 7540 states. Second operand 6 states. [2020-04-18 07:17:18,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:18,169 INFO L93 Difference]: Finished difference Result 7543 states and 20986 transitions. [2020-04-18 07:17:18,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 07:17:18,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-04-18 07:17:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:18,228 INFO L225 Difference]: With dead ends: 7543 [2020-04-18 07:17:18,228 INFO L226 Difference]: Without dead ends: 6154 [2020-04-18 07:17:18,230 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:17:18,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2020-04-18 07:17:18,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 6153. [2020-04-18 07:17:18,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6153 states. [2020-04-18 07:17:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6153 states to 6153 states and 17048 transitions. [2020-04-18 07:17:18,743 INFO L78 Accepts]: Start accepts. Automaton has 6153 states and 17048 transitions. Word has length 32 [2020-04-18 07:17:18,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:18,744 INFO L479 AbstractCegarLoop]: Abstraction has 6153 states and 17048 transitions. [2020-04-18 07:17:18,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:17:18,744 INFO L276 IsEmpty]: Start isEmpty. Operand 6153 states and 17048 transitions. [2020-04-18 07:17:18,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 07:17:18,745 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:18,745 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:18,746 INFO L427 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]=== [2020-04-18 07:17:18,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:18,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1084695127, now seen corresponding path program 1 times [2020-04-18 07:17:18,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:18,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598461962] [2020-04-18 07:17:18,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:18,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598461962] [2020-04-18 07:17:18,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:18,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:17:18,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904376682] [2020-04-18 07:17:18,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:17:18,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:18,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:17:18,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:17:18,966 INFO L87 Difference]: Start difference. First operand 6153 states and 17048 transitions. Second operand 6 states. [2020-04-18 07:17:19,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:19,372 INFO L93 Difference]: Finished difference Result 6155 states and 17050 transitions. [2020-04-18 07:17:19,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:17:19,373 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-04-18 07:17:19,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:19,423 INFO L225 Difference]: With dead ends: 6155 [2020-04-18 07:17:19,423 INFO L226 Difference]: Without dead ends: 6155 [2020-04-18 07:17:19,425 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 07:17:19,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6155 states. [2020-04-18 07:17:19,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6155 to 6151. [2020-04-18 07:17:19,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6151 states. [2020-04-18 07:17:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6151 states to 6151 states and 17046 transitions. [2020-04-18 07:17:19,807 INFO L78 Accepts]: Start accepts. Automaton has 6151 states and 17046 transitions. Word has length 38 [2020-04-18 07:17:19,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:19,808 INFO L479 AbstractCegarLoop]: Abstraction has 6151 states and 17046 transitions. [2020-04-18 07:17:19,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:17:19,808 INFO L276 IsEmpty]: Start isEmpty. Operand 6151 states and 17046 transitions. [2020-04-18 07:17:19,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-04-18 07:17:19,819 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:19,819 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:19,820 INFO L427 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]=== [2020-04-18 07:17:19,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:19,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1692348281, now seen corresponding path program 1 times [2020-04-18 07:17:19,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:19,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678344929] [2020-04-18 07:17:19,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:20,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:20,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678344929] [2020-04-18 07:17:20,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:20,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:17:20,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107241926] [2020-04-18 07:17:20,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:17:20,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:20,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:17:20,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:17:20,072 INFO L87 Difference]: Start difference. First operand 6151 states and 17046 transitions. Second operand 6 states. [2020-04-18 07:17:20,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:20,800 INFO L93 Difference]: Finished difference Result 9138 states and 25276 transitions. [2020-04-18 07:17:20,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 07:17:20,800 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-04-18 07:17:20,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:20,851 INFO L225 Difference]: With dead ends: 9138 [2020-04-18 07:17:20,852 INFO L226 Difference]: Without dead ends: 9138 [2020-04-18 07:17:20,852 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:17:21,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9138 states. [2020-04-18 07:17:21,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9138 to 6933. [2020-04-18 07:17:21,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6933 states. [2020-04-18 07:17:21,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 19228 transitions. [2020-04-18 07:17:21,262 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 19228 transitions. Word has length 56 [2020-04-18 07:17:21,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:21,263 INFO L479 AbstractCegarLoop]: Abstraction has 6933 states and 19228 transitions. [2020-04-18 07:17:21,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:17:21,263 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 19228 transitions. [2020-04-18 07:17:21,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-04-18 07:17:21,269 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:21,269 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:21,269 INFO L427 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]=== [2020-04-18 07:17:21,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:21,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1330747333, now seen corresponding path program 1 times [2020-04-18 07:17:21,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:21,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362402374] [2020-04-18 07:17:21,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:21,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:21,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362402374] [2020-04-18 07:17:21,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:21,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:17:21,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925124316] [2020-04-18 07:17:21,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:17:21,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:21,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:17:21,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:17:21,491 INFO L87 Difference]: Start difference. First operand 6933 states and 19228 transitions. Second operand 6 states. [2020-04-18 07:17:22,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:22,069 INFO L93 Difference]: Finished difference Result 9920 states and 27311 transitions. [2020-04-18 07:17:22,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:17:22,070 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-04-18 07:17:22,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:22,101 INFO L225 Difference]: With dead ends: 9920 [2020-04-18 07:17:22,101 INFO L226 Difference]: Without dead ends: 8303 [2020-04-18 07:17:22,102 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-04-18 07:17:22,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8303 states. [2020-04-18 07:17:22,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8303 to 8009. [2020-04-18 07:17:22,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8009 states. [2020-04-18 07:17:22,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8009 states to 8009 states and 22246 transitions. [2020-04-18 07:17:22,479 INFO L78 Accepts]: Start accepts. Automaton has 8009 states and 22246 transitions. Word has length 62 [2020-04-18 07:17:22,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:22,480 INFO L479 AbstractCegarLoop]: Abstraction has 8009 states and 22246 transitions. [2020-04-18 07:17:22,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:17:22,482 INFO L276 IsEmpty]: Start isEmpty. Operand 8009 states and 22246 transitions. [2020-04-18 07:17:22,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-04-18 07:17:22,491 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:22,491 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:22,491 INFO L427 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]=== [2020-04-18 07:17:22,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:22,492 INFO L82 PathProgramCache]: Analyzing trace with hash -2008182927, now seen corresponding path program 1 times [2020-04-18 07:17:22,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:22,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441087125] [2020-04-18 07:17:22,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:22,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441087125] [2020-04-18 07:17:22,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:22,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 07:17:22,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983038989] [2020-04-18 07:17:22,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 07:17:22,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:22,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 07:17:22,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 07:17:22,640 INFO L87 Difference]: Start difference. First operand 8009 states and 22246 transitions. Second operand 5 states. [2020-04-18 07:17:22,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:22,740 INFO L93 Difference]: Finished difference Result 2795 states and 7501 transitions. [2020-04-18 07:17:22,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 07:17:22,741 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2020-04-18 07:17:22,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:22,748 INFO L225 Difference]: With dead ends: 2795 [2020-04-18 07:17:22,749 INFO L226 Difference]: Without dead ends: 2795 [2020-04-18 07:17:22,749 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:17:22,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2020-04-18 07:17:22,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2795. [2020-04-18 07:17:22,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2795 states. [2020-04-18 07:17:22,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 7501 transitions. [2020-04-18 07:17:22,826 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 7501 transitions. Word has length 70 [2020-04-18 07:17:22,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:22,826 INFO L479 AbstractCegarLoop]: Abstraction has 2795 states and 7501 transitions. [2020-04-18 07:17:22,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 07:17:22,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 7501 transitions. [2020-04-18 07:17:22,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:22,837 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:22,838 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:22,838 INFO L427 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]=== [2020-04-18 07:17:22,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:22,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1769830359, now seen corresponding path program 1 times [2020-04-18 07:17:22,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:22,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865807700] [2020-04-18 07:17:22,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:23,952 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2020-04-18 07:17:24,138 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2020-04-18 07:17:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:24,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865807700] [2020-04-18 07:17:24,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:24,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-18 07:17:24,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677326128] [2020-04-18 07:17:24,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 07:17:24,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:24,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 07:17:24,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:17:24,404 INFO L87 Difference]: Start difference. First operand 2795 states and 7501 transitions. Second operand 15 states. [2020-04-18 07:17:26,148 WARN L192 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-04-18 07:17:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:26,585 INFO L93 Difference]: Finished difference Result 3610 states and 9423 transitions. [2020-04-18 07:17:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 07:17:26,585 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2020-04-18 07:17:26,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:26,596 INFO L225 Difference]: With dead ends: 3610 [2020-04-18 07:17:26,597 INFO L226 Difference]: Without dead ends: 3610 [2020-04-18 07:17:26,597 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2020-04-18 07:17:26,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2020-04-18 07:17:26,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3320. [2020-04-18 07:17:26,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3320 states. [2020-04-18 07:17:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 8797 transitions. [2020-04-18 07:17:26,676 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 8797 transitions. Word has length 103 [2020-04-18 07:17:26,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:26,678 INFO L479 AbstractCegarLoop]: Abstraction has 3320 states and 8797 transitions. [2020-04-18 07:17:26,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 07:17:26,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 8797 transitions. [2020-04-18 07:17:26,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:26,695 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:26,695 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:26,695 INFO L427 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]=== [2020-04-18 07:17:26,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:26,696 INFO L82 PathProgramCache]: Analyzing trace with hash 862252217, now seen corresponding path program 2 times [2020-04-18 07:17:26,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:26,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187012398] [2020-04-18 07:17:26,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:27,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187012398] [2020-04-18 07:17:27,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:27,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-18 07:17:27,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801929209] [2020-04-18 07:17:27,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 07:17:27,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:27,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 07:17:27,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:17:27,766 INFO L87 Difference]: Start difference. First operand 3320 states and 8797 transitions. Second operand 15 states. [2020-04-18 07:17:29,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:29,686 INFO L93 Difference]: Finished difference Result 3999 states and 10212 transitions. [2020-04-18 07:17:29,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:17:29,687 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2020-04-18 07:17:29,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:29,697 INFO L225 Difference]: With dead ends: 3999 [2020-04-18 07:17:29,697 INFO L226 Difference]: Without dead ends: 3999 [2020-04-18 07:17:29,698 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2020-04-18 07:17:29,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2020-04-18 07:17:29,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3419. [2020-04-18 07:17:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3419 states. [2020-04-18 07:17:29,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 9031 transitions. [2020-04-18 07:17:29,778 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 9031 transitions. Word has length 103 [2020-04-18 07:17:29,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:29,778 INFO L479 AbstractCegarLoop]: Abstraction has 3419 states and 9031 transitions. [2020-04-18 07:17:29,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 07:17:29,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 9031 transitions. [2020-04-18 07:17:29,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:29,787 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:29,787 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:29,787 INFO L427 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]=== [2020-04-18 07:17:29,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:29,788 INFO L82 PathProgramCache]: Analyzing trace with hash -116182627, now seen corresponding path program 3 times [2020-04-18 07:17:29,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:29,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14490694] [2020-04-18 07:17:29,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:30,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14490694] [2020-04-18 07:17:30,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:30,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-18 07:17:30,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141113044] [2020-04-18 07:17:30,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 07:17:30,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:30,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 07:17:30,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:17:30,632 INFO L87 Difference]: Start difference. First operand 3419 states and 9031 transitions. Second operand 15 states. [2020-04-18 07:17:31,349 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:17:31,543 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:17:32,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:32,300 INFO L93 Difference]: Finished difference Result 4326 states and 10947 transitions. [2020-04-18 07:17:32,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:17:32,301 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2020-04-18 07:17:32,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:32,308 INFO L225 Difference]: With dead ends: 4326 [2020-04-18 07:17:32,309 INFO L226 Difference]: Without dead ends: 4326 [2020-04-18 07:17:32,309 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2020-04-18 07:17:32,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4326 states. [2020-04-18 07:17:32,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4326 to 3452. [2020-04-18 07:17:32,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3452 states. [2020-04-18 07:17:32,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 9109 transitions. [2020-04-18 07:17:32,395 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 9109 transitions. Word has length 103 [2020-04-18 07:17:32,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:32,396 INFO L479 AbstractCegarLoop]: Abstraction has 3452 states and 9109 transitions. [2020-04-18 07:17:32,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 07:17:32,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 9109 transitions. [2020-04-18 07:17:32,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:32,405 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:32,405 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:32,405 INFO L427 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]=== [2020-04-18 07:17:32,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:32,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1735769453, now seen corresponding path program 4 times [2020-04-18 07:17:32,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:32,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036937591] [2020-04-18 07:17:32,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:33,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:33,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036937591] [2020-04-18 07:17:33,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:33,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-18 07:17:33,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737101688] [2020-04-18 07:17:33,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 07:17:33,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:33,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 07:17:33,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:17:33,334 INFO L87 Difference]: Start difference. First operand 3452 states and 9109 transitions. Second operand 15 states. [2020-04-18 07:17:34,046 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:17:34,246 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:17:34,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:34,966 INFO L93 Difference]: Finished difference Result 3906 states and 10044 transitions. [2020-04-18 07:17:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 07:17:34,967 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2020-04-18 07:17:34,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:34,973 INFO L225 Difference]: With dead ends: 3906 [2020-04-18 07:17:34,974 INFO L226 Difference]: Without dead ends: 3906 [2020-04-18 07:17:34,974 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2020-04-18 07:17:34,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2020-04-18 07:17:35,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 3320. [2020-04-18 07:17:35,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3320 states. [2020-04-18 07:17:35,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 8797 transitions. [2020-04-18 07:17:35,049 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 8797 transitions. Word has length 103 [2020-04-18 07:17:35,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:35,049 INFO L479 AbstractCegarLoop]: Abstraction has 3320 states and 8797 transitions. [2020-04-18 07:17:35,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 07:17:35,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 8797 transitions. [2020-04-18 07:17:35,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:35,058 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:35,059 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:35,059 INFO L427 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]=== [2020-04-18 07:17:35,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:35,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1494462625, now seen corresponding path program 5 times [2020-04-18 07:17:35,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:35,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489230730] [2020-04-18 07:17:35,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:36,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:36,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489230730] [2020-04-18 07:17:36,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:36,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 07:17:36,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292431009] [2020-04-18 07:17:36,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-04-18 07:17:36,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:36,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-04-18 07:17:36,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:17:36,280 INFO L87 Difference]: Start difference. First operand 3320 states and 8797 transitions. Second operand 18 states. [2020-04-18 07:17:36,975 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:17:37,141 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-04-18 07:17:37,421 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-04-18 07:17:37,898 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-04-18 07:17:38,253 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-04-18 07:17:38,433 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-04-18 07:17:38,597 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-04-18 07:17:38,789 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-04-18 07:17:38,954 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-04-18 07:17:38,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:38,962 INFO L93 Difference]: Finished difference Result 5790 states and 15015 transitions. [2020-04-18 07:17:38,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:17:38,962 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 103 [2020-04-18 07:17:38,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:38,971 INFO L225 Difference]: With dead ends: 5790 [2020-04-18 07:17:38,971 INFO L226 Difference]: Without dead ends: 5790 [2020-04-18 07:17:38,972 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=282, Invalid=710, Unknown=0, NotChecked=0, Total=992 [2020-04-18 07:17:38,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5790 states. [2020-04-18 07:17:39,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5790 to 4020. [2020-04-18 07:17:39,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4020 states. [2020-04-18 07:17:39,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 10772 transitions. [2020-04-18 07:17:39,125 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 10772 transitions. Word has length 103 [2020-04-18 07:17:39,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:39,125 INFO L479 AbstractCegarLoop]: Abstraction has 4020 states and 10772 transitions. [2020-04-18 07:17:39,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-04-18 07:17:39,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 10772 transitions. [2020-04-18 07:17:39,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:39,135 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:39,135 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:39,135 INFO L427 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]=== [2020-04-18 07:17:39,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:39,136 INFO L82 PathProgramCache]: Analyzing trace with hash -792062375, now seen corresponding path program 6 times [2020-04-18 07:17:39,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:39,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445265402] [2020-04-18 07:17:39,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:39,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:39,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445265402] [2020-04-18 07:17:39,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:39,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:17:39,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631162255] [2020-04-18 07:17:39,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:17:39,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:39,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:17:39,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:17:39,692 INFO L87 Difference]: Start difference. First operand 4020 states and 10772 transitions. Second operand 11 states. [2020-04-18 07:17:40,252 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-04-18 07:17:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:40,414 INFO L93 Difference]: Finished difference Result 4704 states and 12482 transitions. [2020-04-18 07:17:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:17:40,414 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:17:40,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:40,429 INFO L225 Difference]: With dead ends: 4704 [2020-04-18 07:17:40,429 INFO L226 Difference]: Without dead ends: 4704 [2020-04-18 07:17:40,429 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:17:40,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2020-04-18 07:17:40,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4176. [2020-04-18 07:17:40,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4176 states. [2020-04-18 07:17:40,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 11150 transitions. [2020-04-18 07:17:40,512 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 11150 transitions. Word has length 103 [2020-04-18 07:17:40,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:40,512 INFO L479 AbstractCegarLoop]: Abstraction has 4176 states and 11150 transitions. [2020-04-18 07:17:40,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:17:40,512 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 11150 transitions. [2020-04-18 07:17:40,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:40,524 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:40,524 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:40,525 INFO L427 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]=== [2020-04-18 07:17:40,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:40,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1095207263, now seen corresponding path program 1 times [2020-04-18 07:17:40,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:40,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831010139] [2020-04-18 07:17:40,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:40,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:40,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831010139] [2020-04-18 07:17:40,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:40,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:17:40,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260335018] [2020-04-18 07:17:40,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:17:40,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:40,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:17:40,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:17:40,784 INFO L87 Difference]: Start difference. First operand 4176 states and 11150 transitions. Second operand 7 states. [2020-04-18 07:17:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:41,091 INFO L93 Difference]: Finished difference Result 4408 states and 11587 transitions. [2020-04-18 07:17:41,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 07:17:41,092 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2020-04-18 07:17:41,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:41,101 INFO L225 Difference]: With dead ends: 4408 [2020-04-18 07:17:41,101 INFO L226 Difference]: Without dead ends: 4408 [2020-04-18 07:17:41,102 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-04-18 07:17:41,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2020-04-18 07:17:41,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4366. [2020-04-18 07:17:41,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4366 states. [2020-04-18 07:17:41,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4366 states to 4366 states and 11507 transitions. [2020-04-18 07:17:41,179 INFO L78 Accepts]: Start accepts. Automaton has 4366 states and 11507 transitions. Word has length 103 [2020-04-18 07:17:41,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:41,179 INFO L479 AbstractCegarLoop]: Abstraction has 4366 states and 11507 transitions. [2020-04-18 07:17:41,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:17:41,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4366 states and 11507 transitions. [2020-04-18 07:17:41,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:41,190 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:41,190 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:41,190 INFO L427 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]=== [2020-04-18 07:17:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:41,191 INFO L82 PathProgramCache]: Analyzing trace with hash 238015615, now seen corresponding path program 7 times [2020-04-18 07:17:41,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:41,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845121052] [2020-04-18 07:17:41,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:41,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:41,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845121052] [2020-04-18 07:17:41,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:41,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-18 07:17:41,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325147158] [2020-04-18 07:17:41,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 07:17:41,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:41,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 07:17:41,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:17:41,998 INFO L87 Difference]: Start difference. First operand 4366 states and 11507 transitions. Second operand 15 states. [2020-04-18 07:17:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:43,833 INFO L93 Difference]: Finished difference Result 6351 states and 15993 transitions. [2020-04-18 07:17:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:17:43,833 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2020-04-18 07:17:43,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:43,844 INFO L225 Difference]: With dead ends: 6351 [2020-04-18 07:17:43,844 INFO L226 Difference]: Without dead ends: 6351 [2020-04-18 07:17:43,845 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2020-04-18 07:17:43,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6351 states. [2020-04-18 07:17:43,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6351 to 4274. [2020-04-18 07:17:43,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4274 states. [2020-04-18 07:17:43,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4274 states to 4274 states and 11207 transitions. [2020-04-18 07:17:43,937 INFO L78 Accepts]: Start accepts. Automaton has 4274 states and 11207 transitions. Word has length 103 [2020-04-18 07:17:43,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:43,938 INFO L479 AbstractCegarLoop]: Abstraction has 4274 states and 11207 transitions. [2020-04-18 07:17:43,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 07:17:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 4274 states and 11207 transitions. [2020-04-18 07:17:43,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:43,948 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:43,948 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:43,949 INFO L427 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]=== [2020-04-18 07:17:43,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:43,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1187083681, now seen corresponding path program 8 times [2020-04-18 07:17:43,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:43,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387917452] [2020-04-18 07:17:43,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:44,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:44,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387917452] [2020-04-18 07:17:44,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:44,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:17:44,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97312503] [2020-04-18 07:17:44,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:17:44,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:44,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:17:44,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:17:44,656 INFO L87 Difference]: Start difference. First operand 4274 states and 11207 transitions. Second operand 11 states. [2020-04-18 07:17:45,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:45,483 INFO L93 Difference]: Finished difference Result 6648 states and 16805 transitions. [2020-04-18 07:17:45,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:17:45,484 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:17:45,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:45,495 INFO L225 Difference]: With dead ends: 6648 [2020-04-18 07:17:45,495 INFO L226 Difference]: Without dead ends: 6648 [2020-04-18 07:17:45,530 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:17:45,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6648 states. [2020-04-18 07:17:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6648 to 4332. [2020-04-18 07:17:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4332 states. [2020-04-18 07:17:45,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 11261 transitions. [2020-04-18 07:17:45,625 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 11261 transitions. Word has length 103 [2020-04-18 07:17:45,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:45,626 INFO L479 AbstractCegarLoop]: Abstraction has 4332 states and 11261 transitions. [2020-04-18 07:17:45,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:17:45,626 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 11261 transitions. [2020-04-18 07:17:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:45,642 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:45,642 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:45,643 INFO L427 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]=== [2020-04-18 07:17:45,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:45,643 INFO L82 PathProgramCache]: Analyzing trace with hash 433921447, now seen corresponding path program 9 times [2020-04-18 07:17:45,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:45,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702493441] [2020-04-18 07:17:45,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:46,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702493441] [2020-04-18 07:17:46,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:46,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:17:46,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514405809] [2020-04-18 07:17:46,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:17:46,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:46,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:17:46,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:17:46,315 INFO L87 Difference]: Start difference. First operand 4332 states and 11261 transitions. Second operand 11 states. [2020-04-18 07:17:46,917 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-04-18 07:17:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:47,082 INFO L93 Difference]: Finished difference Result 5352 states and 13393 transitions. [2020-04-18 07:17:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:17:47,082 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:17:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:47,088 INFO L225 Difference]: With dead ends: 5352 [2020-04-18 07:17:47,089 INFO L226 Difference]: Without dead ends: 5352 [2020-04-18 07:17:47,089 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:17:47,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5352 states. [2020-04-18 07:17:47,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5352 to 4052. [2020-04-18 07:17:47,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4052 states. [2020-04-18 07:17:47,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4052 states to 4052 states and 10429 transitions. [2020-04-18 07:17:47,165 INFO L78 Accepts]: Start accepts. Automaton has 4052 states and 10429 transitions. Word has length 103 [2020-04-18 07:17:47,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:47,166 INFO L479 AbstractCegarLoop]: Abstraction has 4052 states and 10429 transitions. [2020-04-18 07:17:47,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:17:47,166 INFO L276 IsEmpty]: Start isEmpty. Operand 4052 states and 10429 transitions. [2020-04-18 07:17:47,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:47,176 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:47,176 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:47,177 INFO L427 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]=== [2020-04-18 07:17:47,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:47,177 INFO L82 PathProgramCache]: Analyzing trace with hash 196339453, now seen corresponding path program 2 times [2020-04-18 07:17:47,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:47,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752833472] [2020-04-18 07:17:47,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:48,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752833472] [2020-04-18 07:17:48,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:48,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:17:48,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524225149] [2020-04-18 07:17:48,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:17:48,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:48,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:17:48,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:17:48,042 INFO L87 Difference]: Start difference. First operand 4052 states and 10429 transitions. Second operand 17 states. [2020-04-18 07:17:51,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:51,680 INFO L93 Difference]: Finished difference Result 8893 states and 22792 transitions. [2020-04-18 07:17:51,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-04-18 07:17:51,680 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 103 [2020-04-18 07:17:51,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:51,690 INFO L225 Difference]: With dead ends: 8893 [2020-04-18 07:17:51,690 INFO L226 Difference]: Without dead ends: 8756 [2020-04-18 07:17:51,691 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=499, Invalid=1061, Unknown=0, NotChecked=0, Total=1560 [2020-04-18 07:17:51,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2020-04-18 07:17:51,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 7296. [2020-04-18 07:17:51,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7296 states. [2020-04-18 07:17:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 19396 transitions. [2020-04-18 07:17:51,811 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 19396 transitions. Word has length 103 [2020-04-18 07:17:51,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:51,812 INFO L479 AbstractCegarLoop]: Abstraction has 7296 states and 19396 transitions. [2020-04-18 07:17:51,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:17:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 19396 transitions. [2020-04-18 07:17:51,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:51,826 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:51,826 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:51,827 INFO L427 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]=== [2020-04-18 07:17:51,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:51,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1529562331, now seen corresponding path program 10 times [2020-04-18 07:17:51,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:51,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993704115] [2020-04-18 07:17:51,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:52,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993704115] [2020-04-18 07:17:52,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:52,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:17:52,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047770288] [2020-04-18 07:17:52,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:17:52,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:52,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:17:52,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:17:52,384 INFO L87 Difference]: Start difference. First operand 7296 states and 19396 transitions. Second operand 11 states. [2020-04-18 07:17:53,025 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:17:53,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:53,282 INFO L93 Difference]: Finished difference Result 10590 states and 27729 transitions. [2020-04-18 07:17:53,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:17:53,283 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:17:53,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:53,294 INFO L225 Difference]: With dead ends: 10590 [2020-04-18 07:17:53,295 INFO L226 Difference]: Without dead ends: 10590 [2020-04-18 07:17:53,295 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:17:53,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10590 states. [2020-04-18 07:17:53,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10590 to 7476. [2020-04-18 07:17:53,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7476 states. [2020-04-18 07:17:53,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7476 states to 7476 states and 19852 transitions. [2020-04-18 07:17:53,419 INFO L78 Accepts]: Start accepts. Automaton has 7476 states and 19852 transitions. Word has length 103 [2020-04-18 07:17:53,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:53,419 INFO L479 AbstractCegarLoop]: Abstraction has 7476 states and 19852 transitions. [2020-04-18 07:17:53,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:17:53,419 INFO L276 IsEmpty]: Start isEmpty. Operand 7476 states and 19852 transitions. [2020-04-18 07:17:53,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:53,434 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:53,435 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:53,435 INFO L427 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]=== [2020-04-18 07:17:53,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:53,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1701464623, now seen corresponding path program 11 times [2020-04-18 07:17:53,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:53,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262708647] [2020-04-18 07:17:53,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:54,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:54,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262708647] [2020-04-18 07:17:54,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:54,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-18 07:17:54,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263055121] [2020-04-18 07:17:54,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 07:17:54,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:54,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 07:17:54,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:17:54,101 INFO L87 Difference]: Start difference. First operand 7476 states and 19852 transitions. Second operand 15 states. [2020-04-18 07:17:54,812 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-04-18 07:17:54,988 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-04-18 07:17:55,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:55,702 INFO L93 Difference]: Finished difference Result 9265 states and 23601 transitions. [2020-04-18 07:17:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:17:55,703 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2020-04-18 07:17:55,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:55,712 INFO L225 Difference]: With dead ends: 9265 [2020-04-18 07:17:55,712 INFO L226 Difference]: Without dead ends: 9265 [2020-04-18 07:17:55,713 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2020-04-18 07:17:55,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9265 states. [2020-04-18 07:17:55,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9265 to 7500. [2020-04-18 07:17:55,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7500 states. [2020-04-18 07:17:55,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7500 states to 7500 states and 19892 transitions. [2020-04-18 07:17:55,820 INFO L78 Accepts]: Start accepts. Automaton has 7500 states and 19892 transitions. Word has length 103 [2020-04-18 07:17:55,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:55,820 INFO L479 AbstractCegarLoop]: Abstraction has 7500 states and 19892 transitions. [2020-04-18 07:17:55,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 07:17:55,820 INFO L276 IsEmpty]: Start isEmpty. Operand 7500 states and 19892 transitions. [2020-04-18 07:17:55,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:55,830 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:55,830 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:55,831 INFO L427 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]=== [2020-04-18 07:17:55,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:55,831 INFO L82 PathProgramCache]: Analyzing trace with hash -919899363, now seen corresponding path program 12 times [2020-04-18 07:17:55,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:55,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973578194] [2020-04-18 07:17:55,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:56,240 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 16 [2020-04-18 07:17:56,479 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 14 [2020-04-18 07:17:56,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:56,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973578194] [2020-04-18 07:17:56,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:56,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:17:56,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053765814] [2020-04-18 07:17:56,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:17:56,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:56,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:17:56,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:17:56,631 INFO L87 Difference]: Start difference. First operand 7500 states and 19892 transitions. Second operand 11 states. [2020-04-18 07:17:57,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:17:57,345 INFO L93 Difference]: Finished difference Result 10831 states and 27541 transitions. [2020-04-18 07:17:57,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:17:57,345 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:17:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:17:57,357 INFO L225 Difference]: With dead ends: 10831 [2020-04-18 07:17:57,357 INFO L226 Difference]: Without dead ends: 10831 [2020-04-18 07:17:57,358 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:17:57,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10831 states. [2020-04-18 07:17:57,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10831 to 6521. [2020-04-18 07:17:57,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6521 states. [2020-04-18 07:17:57,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 17065 transitions. [2020-04-18 07:17:57,457 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 17065 transitions. Word has length 103 [2020-04-18 07:17:57,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:17:57,457 INFO L479 AbstractCegarLoop]: Abstraction has 6521 states and 17065 transitions. [2020-04-18 07:17:57,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:17:57,457 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 17065 transitions. [2020-04-18 07:17:57,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:17:57,463 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:17:57,463 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:17:57,463 INFO L427 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]=== [2020-04-18 07:17:57,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:17:57,463 INFO L82 PathProgramCache]: Analyzing trace with hash -2120364487, now seen corresponding path program 3 times [2020-04-18 07:17:57,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:17:57,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964315673] [2020-04-18 07:17:57,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:17:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:17:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:17:58,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964315673] [2020-04-18 07:17:58,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:17:58,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:17:58,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552657011] [2020-04-18 07:17:58,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:17:58,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:17:58,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:17:58,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:17:58,350 INFO L87 Difference]: Start difference. First operand 6521 states and 17065 transitions. Second operand 17 states. [2020-04-18 07:18:01,354 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:18:01,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:01,905 INFO L93 Difference]: Finished difference Result 9016 states and 23122 transitions. [2020-04-18 07:18:01,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-04-18 07:18:01,906 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 103 [2020-04-18 07:18:01,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:01,916 INFO L225 Difference]: With dead ends: 9016 [2020-04-18 07:18:01,916 INFO L226 Difference]: Without dead ends: 8938 [2020-04-18 07:18:01,917 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=447, Invalid=959, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 07:18:01,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8938 states. [2020-04-18 07:18:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8938 to 6986. [2020-04-18 07:18:02,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6986 states. [2020-04-18 07:18:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6986 states to 6986 states and 18378 transitions. [2020-04-18 07:18:02,026 INFO L78 Accepts]: Start accepts. Automaton has 6986 states and 18378 transitions. Word has length 103 [2020-04-18 07:18:02,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:02,026 INFO L479 AbstractCegarLoop]: Abstraction has 6986 states and 18378 transitions. [2020-04-18 07:18:02,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:18:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand 6986 states and 18378 transitions. [2020-04-18 07:18:02,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:02,034 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:02,034 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:02,034 INFO L427 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]=== [2020-04-18 07:18:02,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:02,035 INFO L82 PathProgramCache]: Analyzing trace with hash -787141609, now seen corresponding path program 13 times [2020-04-18 07:18:02,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:02,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307505052] [2020-04-18 07:18:02,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:02,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:02,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307505052] [2020-04-18 07:18:02,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:02,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:18:02,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842824824] [2020-04-18 07:18:02,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:18:02,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:02,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:18:02,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:18:02,577 INFO L87 Difference]: Start difference. First operand 6986 states and 18378 transitions. Second operand 11 states. [2020-04-18 07:18:03,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:03,391 INFO L93 Difference]: Finished difference Result 14054 states and 35476 transitions. [2020-04-18 07:18:03,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:18:03,392 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:18:03,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:03,407 INFO L225 Difference]: With dead ends: 14054 [2020-04-18 07:18:03,407 INFO L226 Difference]: Without dead ends: 14054 [2020-04-18 07:18:03,407 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:18:03,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14054 states. [2020-04-18 07:18:03,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14054 to 6917. [2020-04-18 07:18:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6917 states. [2020-04-18 07:18:03,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6917 states to 6917 states and 18169 transitions. [2020-04-18 07:18:03,538 INFO L78 Accepts]: Start accepts. Automaton has 6917 states and 18169 transitions. Word has length 103 [2020-04-18 07:18:03,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:03,538 INFO L479 AbstractCegarLoop]: Abstraction has 6917 states and 18169 transitions. [2020-04-18 07:18:03,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:18:03,539 INFO L276 IsEmpty]: Start isEmpty. Operand 6917 states and 18169 transitions. [2020-04-18 07:18:03,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:03,546 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:03,547 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:03,547 INFO L427 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]=== [2020-04-18 07:18:03,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:03,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1490279205, now seen corresponding path program 14 times [2020-04-18 07:18:03,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:03,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768969328] [2020-04-18 07:18:03,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:04,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:04,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768969328] [2020-04-18 07:18:04,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:04,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:18:04,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34260297] [2020-04-18 07:18:04,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:18:04,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:04,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:18:04,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:18:04,020 INFO L87 Difference]: Start difference. First operand 6917 states and 18169 transitions. Second operand 11 states. [2020-04-18 07:18:04,609 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-04-18 07:18:04,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:04,797 INFO L93 Difference]: Finished difference Result 8917 states and 22227 transitions. [2020-04-18 07:18:04,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:18:04,798 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:18:04,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:04,807 INFO L225 Difference]: With dead ends: 8917 [2020-04-18 07:18:04,807 INFO L226 Difference]: Without dead ends: 8917 [2020-04-18 07:18:04,808 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:18:04,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8917 states. [2020-04-18 07:18:04,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8917 to 5829. [2020-04-18 07:18:04,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5829 states. [2020-04-18 07:18:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5829 states to 5829 states and 15075 transitions. [2020-04-18 07:18:04,881 INFO L78 Accepts]: Start accepts. Automaton has 5829 states and 15075 transitions. Word has length 103 [2020-04-18 07:18:04,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:04,882 INFO L479 AbstractCegarLoop]: Abstraction has 5829 states and 15075 transitions. [2020-04-18 07:18:04,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:18:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5829 states and 15075 transitions. [2020-04-18 07:18:04,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:04,888 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:04,888 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:04,888 INFO L427 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]=== [2020-04-18 07:18:04,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:04,889 INFO L82 PathProgramCache]: Analyzing trace with hash 637042567, now seen corresponding path program 4 times [2020-04-18 07:18:04,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:04,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144936461] [2020-04-18 07:18:04,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:05,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:05,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144936461] [2020-04-18 07:18:05,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:05,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:18:05,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088361470] [2020-04-18 07:18:05,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:18:05,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:05,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:18:05,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:18:05,799 INFO L87 Difference]: Start difference. First operand 5829 states and 15075 transitions. Second operand 17 states. [2020-04-18 07:18:08,790 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2020-04-18 07:18:09,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:09,084 INFO L93 Difference]: Finished difference Result 8929 states and 22851 transitions. [2020-04-18 07:18:09,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-04-18 07:18:09,085 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 103 [2020-04-18 07:18:09,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:09,096 INFO L225 Difference]: With dead ends: 8929 [2020-04-18 07:18:09,097 INFO L226 Difference]: Without dead ends: 8782 [2020-04-18 07:18:09,097 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=442, Invalid=964, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 07:18:09,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8782 states. [2020-04-18 07:18:09,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8782 to 6681. [2020-04-18 07:18:09,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6681 states. [2020-04-18 07:18:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 17691 transitions. [2020-04-18 07:18:09,223 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 17691 transitions. Word has length 103 [2020-04-18 07:18:09,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:09,223 INFO L479 AbstractCegarLoop]: Abstraction has 6681 states and 17691 transitions. [2020-04-18 07:18:09,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:18:09,223 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 17691 transitions. [2020-04-18 07:18:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:09,230 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:09,230 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:09,230 INFO L427 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]=== [2020-04-18 07:18:09,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:09,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1970265445, now seen corresponding path program 15 times [2020-04-18 07:18:09,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:09,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948785330] [2020-04-18 07:18:09,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:09,764 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2020-04-18 07:18:10,032 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 19 [2020-04-18 07:18:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:10,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948785330] [2020-04-18 07:18:10,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:10,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:18:10,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472987353] [2020-04-18 07:18:10,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:18:10,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:10,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:18:10,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:18:10,057 INFO L87 Difference]: Start difference. First operand 6681 states and 17691 transitions. Second operand 11 states. [2020-04-18 07:18:10,832 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:18:11,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:11,088 INFO L93 Difference]: Finished difference Result 7359 states and 19395 transitions. [2020-04-18 07:18:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:18:11,088 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:18:11,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:11,099 INFO L225 Difference]: With dead ends: 7359 [2020-04-18 07:18:11,099 INFO L226 Difference]: Without dead ends: 7359 [2020-04-18 07:18:11,099 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:18:11,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7359 states. [2020-04-18 07:18:11,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7359 to 6693. [2020-04-18 07:18:11,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6693 states. [2020-04-18 07:18:11,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 17721 transitions. [2020-04-18 07:18:11,230 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 17721 transitions. Word has length 103 [2020-04-18 07:18:11,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:11,230 INFO L479 AbstractCegarLoop]: Abstraction has 6693 states and 17721 transitions. [2020-04-18 07:18:11,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:18:11,230 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 17721 transitions. [2020-04-18 07:18:11,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:11,242 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:11,242 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:11,242 INFO L427 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]=== [2020-04-18 07:18:11,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:11,243 INFO L82 PathProgramCache]: Analyzing trace with hash 2047429413, now seen corresponding path program 16 times [2020-04-18 07:18:11,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:11,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966500935] [2020-04-18 07:18:11,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:12,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966500935] [2020-04-18 07:18:12,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:12,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-18 07:18:12,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212704810] [2020-04-18 07:18:12,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 07:18:12,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:12,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 07:18:12,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:18:12,087 INFO L87 Difference]: Start difference. First operand 6693 states and 17721 transitions. Second operand 15 states. [2020-04-18 07:18:12,942 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-04-18 07:18:13,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:13,628 INFO L93 Difference]: Finished difference Result 7630 states and 19702 transitions. [2020-04-18 07:18:13,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 07:18:13,628 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2020-04-18 07:18:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:13,637 INFO L225 Difference]: With dead ends: 7630 [2020-04-18 07:18:13,637 INFO L226 Difference]: Without dead ends: 7630 [2020-04-18 07:18:13,638 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2020-04-18 07:18:13,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7630 states. [2020-04-18 07:18:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7630 to 6457. [2020-04-18 07:18:13,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6457 states. [2020-04-18 07:18:13,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6457 states to 6457 states and 17169 transitions. [2020-04-18 07:18:13,714 INFO L78 Accepts]: Start accepts. Automaton has 6457 states and 17169 transitions. Word has length 103 [2020-04-18 07:18:13,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:13,715 INFO L479 AbstractCegarLoop]: Abstraction has 6457 states and 17169 transitions. [2020-04-18 07:18:13,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 07:18:13,715 INFO L276 IsEmpty]: Start isEmpty. Operand 6457 states and 17169 transitions. [2020-04-18 07:18:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:13,722 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:13,723 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:13,723 INFO L427 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]=== [2020-04-18 07:18:13,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:13,723 INFO L82 PathProgramCache]: Analyzing trace with hash 881792259, now seen corresponding path program 17 times [2020-04-18 07:18:13,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:13,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901699858] [2020-04-18 07:18:13,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:14,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901699858] [2020-04-18 07:18:14,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:14,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:18:14,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044952724] [2020-04-18 07:18:14,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:18:14,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:14,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:18:14,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:18:14,353 INFO L87 Difference]: Start difference. First operand 6457 states and 17169 transitions. Second operand 11 states. [2020-04-18 07:18:14,978 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:18:15,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:15,173 INFO L93 Difference]: Finished difference Result 7873 states and 20521 transitions. [2020-04-18 07:18:15,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:18:15,173 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:18:15,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:15,182 INFO L225 Difference]: With dead ends: 7873 [2020-04-18 07:18:15,182 INFO L226 Difference]: Without dead ends: 7873 [2020-04-18 07:18:15,182 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:18:15,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7873 states. [2020-04-18 07:18:15,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7873 to 6386. [2020-04-18 07:18:15,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6386 states. [2020-04-18 07:18:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6386 states to 6386 states and 16955 transitions. [2020-04-18 07:18:15,260 INFO L78 Accepts]: Start accepts. Automaton has 6386 states and 16955 transitions. Word has length 103 [2020-04-18 07:18:15,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:15,261 INFO L479 AbstractCegarLoop]: Abstraction has 6386 states and 16955 transitions. [2020-04-18 07:18:15,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:18:15,261 INFO L276 IsEmpty]: Start isEmpty. Operand 6386 states and 16955 transitions. [2020-04-18 07:18:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:15,268 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:15,269 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:15,269 INFO L427 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]=== [2020-04-18 07:18:15,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:15,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1567669435, now seen corresponding path program 18 times [2020-04-18 07:18:15,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:15,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988864593] [2020-04-18 07:18:15,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:15,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:15,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988864593] [2020-04-18 07:18:15,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:15,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:18:15,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716317136] [2020-04-18 07:18:15,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:18:15,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:15,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:18:15,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:18:15,948 INFO L87 Difference]: Start difference. First operand 6386 states and 16955 transitions. Second operand 11 states. [2020-04-18 07:18:16,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:16,709 INFO L93 Difference]: Finished difference Result 6353 states and 16347 transitions. [2020-04-18 07:18:16,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:18:16,710 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:18:16,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:16,718 INFO L225 Difference]: With dead ends: 6353 [2020-04-18 07:18:16,718 INFO L226 Difference]: Without dead ends: 6353 [2020-04-18 07:18:16,718 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:18:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6353 states. [2020-04-18 07:18:16,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6353 to 5245. [2020-04-18 07:18:16,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5245 states. [2020-04-18 07:18:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 13701 transitions. [2020-04-18 07:18:16,778 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 13701 transitions. Word has length 103 [2020-04-18 07:18:16,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:16,778 INFO L479 AbstractCegarLoop]: Abstraction has 5245 states and 13701 transitions. [2020-04-18 07:18:16,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:18:16,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 13701 transitions. [2020-04-18 07:18:16,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:16,783 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:16,783 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:16,783 INFO L427 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]=== [2020-04-18 07:18:16,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:16,784 INFO L82 PathProgramCache]: Analyzing trace with hash 346432841, now seen corresponding path program 5 times [2020-04-18 07:18:16,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:16,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125634260] [2020-04-18 07:18:16,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:17,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:17,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125634260] [2020-04-18 07:18:17,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:17,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:18:17,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5941290] [2020-04-18 07:18:17,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:18:17,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:17,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:18:17,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:18:17,541 INFO L87 Difference]: Start difference. First operand 5245 states and 13701 transitions. Second operand 17 states. [2020-04-18 07:18:21,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:21,058 INFO L93 Difference]: Finished difference Result 8394 states and 21593 transitions. [2020-04-18 07:18:21,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-04-18 07:18:21,058 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 103 [2020-04-18 07:18:21,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:21,067 INFO L225 Difference]: With dead ends: 8394 [2020-04-18 07:18:21,067 INFO L226 Difference]: Without dead ends: 8312 [2020-04-18 07:18:21,068 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=436, Invalid=970, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 07:18:21,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8312 states. [2020-04-18 07:18:21,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8312 to 6376. [2020-04-18 07:18:21,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6376 states. [2020-04-18 07:18:21,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6376 states to 6376 states and 16930 transitions. [2020-04-18 07:18:21,145 INFO L78 Accepts]: Start accepts. Automaton has 6376 states and 16930 transitions. Word has length 103 [2020-04-18 07:18:21,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:21,145 INFO L479 AbstractCegarLoop]: Abstraction has 6376 states and 16930 transitions. [2020-04-18 07:18:21,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:18:21,145 INFO L276 IsEmpty]: Start isEmpty. Operand 6376 states and 16930 transitions. [2020-04-18 07:18:21,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:21,151 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:21,152 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:21,152 INFO L427 AbstractCegarLoop]: === Iteration 29 === [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]=== [2020-04-18 07:18:21,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:21,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1679655719, now seen corresponding path program 19 times [2020-04-18 07:18:21,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:21,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915949365] [2020-04-18 07:18:21,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:21,528 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 16 [2020-04-18 07:18:21,690 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2020-04-18 07:18:21,883 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 19 [2020-04-18 07:18:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:21,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915949365] [2020-04-18 07:18:21,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:21,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:18:21,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999576828] [2020-04-18 07:18:21,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:18:21,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:21,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:18:21,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:18:21,913 INFO L87 Difference]: Start difference. First operand 6376 states and 16930 transitions. Second operand 11 states. [2020-04-18 07:18:22,564 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-04-18 07:18:22,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:22,754 INFO L93 Difference]: Finished difference Result 9510 states and 24645 transitions. [2020-04-18 07:18:22,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:18:22,754 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:18:22,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:22,765 INFO L225 Difference]: With dead ends: 9510 [2020-04-18 07:18:22,765 INFO L226 Difference]: Without dead ends: 9510 [2020-04-18 07:18:22,765 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:18:22,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9510 states. [2020-04-18 07:18:22,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9510 to 6298. [2020-04-18 07:18:22,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6298 states. [2020-04-18 07:18:22,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6298 states to 6298 states and 16702 transitions. [2020-04-18 07:18:22,846 INFO L78 Accepts]: Start accepts. Automaton has 6298 states and 16702 transitions. Word has length 103 [2020-04-18 07:18:22,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:22,846 INFO L479 AbstractCegarLoop]: Abstraction has 6298 states and 16702 transitions. [2020-04-18 07:18:22,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:18:22,847 INFO L276 IsEmpty]: Start isEmpty. Operand 6298 states and 16702 transitions. [2020-04-18 07:18:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:22,852 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:22,852 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:22,852 INFO L427 AbstractCegarLoop]: === Iteration 30 === [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]=== [2020-04-18 07:18:22,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:22,853 INFO L82 PathProgramCache]: Analyzing trace with hash -769805975, now seen corresponding path program 20 times [2020-04-18 07:18:22,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:22,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834242911] [2020-04-18 07:18:22,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:23,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834242911] [2020-04-18 07:18:23,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:23,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:18:23,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652662543] [2020-04-18 07:18:23,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:18:23,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:23,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:18:23,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:18:23,394 INFO L87 Difference]: Start difference. First operand 6298 states and 16702 transitions. Second operand 11 states. [2020-04-18 07:18:24,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:24,112 INFO L93 Difference]: Finished difference Result 8317 states and 21085 transitions. [2020-04-18 07:18:24,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:18:24,112 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:18:24,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:24,122 INFO L225 Difference]: With dead ends: 8317 [2020-04-18 07:18:24,122 INFO L226 Difference]: Without dead ends: 8317 [2020-04-18 07:18:24,123 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:18:24,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8317 states. [2020-04-18 07:18:24,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8317 to 5251. [2020-04-18 07:18:24,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5251 states. [2020-04-18 07:18:24,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 13716 transitions. [2020-04-18 07:18:24,256 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 13716 transitions. Word has length 103 [2020-04-18 07:18:24,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:24,257 INFO L479 AbstractCegarLoop]: Abstraction has 5251 states and 13716 transitions. [2020-04-18 07:18:24,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:18:24,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 13716 transitions. [2020-04-18 07:18:24,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:24,262 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:24,262 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:24,262 INFO L427 AbstractCegarLoop]: === Iteration 31 === [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]=== [2020-04-18 07:18:24,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:24,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1970271099, now seen corresponding path program 6 times [2020-04-18 07:18:24,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:24,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800253326] [2020-04-18 07:18:24,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:25,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800253326] [2020-04-18 07:18:25,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:25,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 07:18:25,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123652574] [2020-04-18 07:18:25,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 07:18:25,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:25,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 07:18:25,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-04-18 07:18:25,181 INFO L87 Difference]: Start difference. First operand 5251 states and 13716 transitions. Second operand 17 states. [2020-04-18 07:18:27,855 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-04-18 07:18:28,007 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 07:18:28,148 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2020-04-18 07:18:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:28,417 INFO L93 Difference]: Finished difference Result 6975 states and 17872 transitions. [2020-04-18 07:18:28,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-04-18 07:18:28,418 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 103 [2020-04-18 07:18:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:28,427 INFO L225 Difference]: With dead ends: 6975 [2020-04-18 07:18:28,427 INFO L226 Difference]: Without dead ends: 6897 [2020-04-18 07:18:28,428 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=413, Invalid=919, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 07:18:28,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6897 states. [2020-04-18 07:18:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6897 to 5028. [2020-04-18 07:18:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5028 states. [2020-04-18 07:18:28,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 13194 transitions. [2020-04-18 07:18:28,498 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 13194 transitions. Word has length 103 [2020-04-18 07:18:28,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:28,498 INFO L479 AbstractCegarLoop]: Abstraction has 5028 states and 13194 transitions. [2020-04-18 07:18:28,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 07:18:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 13194 transitions. [2020-04-18 07:18:28,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:28,504 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:28,504 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:28,505 INFO L427 AbstractCegarLoop]: === Iteration 32 === [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]=== [2020-04-18 07:18:28,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:28,505 INFO L82 PathProgramCache]: Analyzing trace with hash -637048221, now seen corresponding path program 21 times [2020-04-18 07:18:28,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:28,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876667672] [2020-04-18 07:18:28,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:28,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:28,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876667672] [2020-04-18 07:18:28,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:28,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:18:28,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274022289] [2020-04-18 07:18:28,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:18:28,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:28,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:18:28,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:18:28,993 INFO L87 Difference]: Start difference. First operand 5028 states and 13194 transitions. Second operand 11 states. [2020-04-18 07:18:29,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:29,653 INFO L93 Difference]: Finished difference Result 7409 states and 18936 transitions. [2020-04-18 07:18:29,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:18:29,653 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:18:29,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:29,661 INFO L225 Difference]: With dead ends: 7409 [2020-04-18 07:18:29,662 INFO L226 Difference]: Without dead ends: 7409 [2020-04-18 07:18:29,662 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:18:29,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7409 states. [2020-04-18 07:18:29,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7409 to 4937. [2020-04-18 07:18:29,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4937 states. [2020-04-18 07:18:29,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4937 states to 4937 states and 12928 transitions. [2020-04-18 07:18:29,737 INFO L78 Accepts]: Start accepts. Automaton has 4937 states and 12928 transitions. Word has length 103 [2020-04-18 07:18:29,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:29,737 INFO L479 AbstractCegarLoop]: Abstraction has 4937 states and 12928 transitions. [2020-04-18 07:18:29,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:18:29,737 INFO L276 IsEmpty]: Start isEmpty. Operand 4937 states and 12928 transitions. [2020-04-18 07:18:29,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 07:18:29,742 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:29,742 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:29,743 INFO L427 AbstractCegarLoop]: === Iteration 33 === [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]=== [2020-04-18 07:18:29,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:29,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1340185817, now seen corresponding path program 22 times [2020-04-18 07:18:29,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:29,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868616712] [2020-04-18 07:18:29,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:30,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:30,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868616712] [2020-04-18 07:18:30,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:30,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:18:30,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132903928] [2020-04-18 07:18:30,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:18:30,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:30,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:18:30,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:18:30,255 INFO L87 Difference]: Start difference. First operand 4937 states and 12928 transitions. Second operand 11 states. [2020-04-18 07:18:30,884 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-04-18 07:18:31,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:31,048 INFO L93 Difference]: Finished difference Result 4911 states and 12483 transitions. [2020-04-18 07:18:31,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:18:31,049 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-04-18 07:18:31,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:31,055 INFO L225 Difference]: With dead ends: 4911 [2020-04-18 07:18:31,055 INFO L226 Difference]: Without dead ends: 4911 [2020-04-18 07:18:31,056 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:18:31,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2020-04-18 07:18:31,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 3655. [2020-04-18 07:18:31,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3655 states. [2020-04-18 07:18:31,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 9422 transitions. [2020-04-18 07:18:31,096 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 9422 transitions. Word has length 103 [2020-04-18 07:18:31,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:31,097 INFO L479 AbstractCegarLoop]: Abstraction has 3655 states and 9422 transitions. [2020-04-18 07:18:31,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:18:31,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 9422 transitions. [2020-04-18 07:18:31,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:18:31,101 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:31,101 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:31,101 INFO L427 AbstractCegarLoop]: === Iteration 34 === [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]=== [2020-04-18 07:18:31,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:31,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1081092433, now seen corresponding path program 1 times [2020-04-18 07:18:31,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:31,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448037933] [2020-04-18 07:18:31,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:33,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448037933] [2020-04-18 07:18:33,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:33,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2020-04-18 07:18:33,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329361931] [2020-04-18 07:18:33,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-04-18 07:18:33,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:33,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-04-18 07:18:33,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2020-04-18 07:18:33,065 INFO L87 Difference]: Start difference. First operand 3655 states and 9422 transitions. Second operand 27 states. [2020-04-18 07:18:33,986 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-04-18 07:18:34,247 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-04-18 07:18:34,453 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2020-04-18 07:18:34,839 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-04-18 07:18:35,060 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-04-18 07:18:35,404 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-04-18 07:18:35,941 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-04-18 07:18:36,175 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-04-18 07:18:36,391 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-04-18 07:18:36,620 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-04-18 07:18:37,073 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-04-18 07:18:37,263 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:18:37,470 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:18:37,960 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-04-18 07:18:38,113 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:18:38,315 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-04-18 07:18:38,783 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-04-18 07:18:39,014 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-04-18 07:18:39,182 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:18:39,334 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:18:39,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:39,478 INFO L93 Difference]: Finished difference Result 4776 states and 12126 transitions. [2020-04-18 07:18:39,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-04-18 07:18:39,479 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 109 [2020-04-18 07:18:39,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:39,484 INFO L225 Difference]: With dead ends: 4776 [2020-04-18 07:18:39,484 INFO L226 Difference]: Without dead ends: 4330 [2020-04-18 07:18:39,485 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2020-04-18 07:18:39,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2020-04-18 07:18:39,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 4139. [2020-04-18 07:18:39,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4139 states. [2020-04-18 07:18:39,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 10632 transitions. [2020-04-18 07:18:39,531 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 10632 transitions. Word has length 109 [2020-04-18 07:18:39,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:39,531 INFO L479 AbstractCegarLoop]: Abstraction has 4139 states and 10632 transitions. [2020-04-18 07:18:39,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-04-18 07:18:39,531 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 10632 transitions. [2020-04-18 07:18:39,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:18:39,536 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:39,537 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:39,537 INFO L427 AbstractCegarLoop]: === Iteration 35 === [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]=== [2020-04-18 07:18:39,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:39,537 INFO L82 PathProgramCache]: Analyzing trace with hash -196721297, now seen corresponding path program 2 times [2020-04-18 07:18:39,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:39,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324569702] [2020-04-18 07:18:39,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:41,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:41,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324569702] [2020-04-18 07:18:41,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:41,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-04-18 07:18:41,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488479509] [2020-04-18 07:18:41,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-04-18 07:18:41,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:41,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-04-18 07:18:41,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2020-04-18 07:18:41,665 INFO L87 Difference]: Start difference. First operand 4139 states and 10632 transitions. Second operand 26 states. [2020-04-18 07:18:42,658 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-04-18 07:18:42,920 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-04-18 07:18:43,153 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2020-04-18 07:18:43,524 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2020-04-18 07:18:43,743 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-04-18 07:18:44,090 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-18 07:18:44,624 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-04-18 07:18:44,882 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-04-18 07:18:45,125 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2020-04-18 07:18:45,373 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-04-18 07:18:45,877 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-04-18 07:18:46,543 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-04-18 07:18:46,762 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 07:18:46,913 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:18:47,065 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:18:47,372 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-04-18 07:18:48,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:48,242 INFO L93 Difference]: Finished difference Result 4463 states and 11283 transitions. [2020-04-18 07:18:48,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-04-18 07:18:48,243 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 109 [2020-04-18 07:18:48,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:48,248 INFO L225 Difference]: With dead ends: 4463 [2020-04-18 07:18:48,248 INFO L226 Difference]: Without dead ends: 4264 [2020-04-18 07:18:48,249 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=505, Invalid=2465, Unknown=0, NotChecked=0, Total=2970 [2020-04-18 07:18:48,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4264 states. [2020-04-18 07:18:48,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 4073. [2020-04-18 07:18:48,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4073 states. [2020-04-18 07:18:48,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 10456 transitions. [2020-04-18 07:18:48,290 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 10456 transitions. Word has length 109 [2020-04-18 07:18:48,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:48,290 INFO L479 AbstractCegarLoop]: Abstraction has 4073 states and 10456 transitions. [2020-04-18 07:18:48,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-04-18 07:18:48,291 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 10456 transitions. [2020-04-18 07:18:48,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:18:48,294 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:48,294 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:48,295 INFO L427 AbstractCegarLoop]: === Iteration 36 === [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]=== [2020-04-18 07:18:48,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:48,295 INFO L82 PathProgramCache]: Analyzing trace with hash 704126711, now seen corresponding path program 3 times [2020-04-18 07:18:48,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:48,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859543586] [2020-04-18 07:18:48,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:48,989 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2020-04-18 07:18:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:50,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859543586] [2020-04-18 07:18:50,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:50,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-04-18 07:18:50,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255867346] [2020-04-18 07:18:50,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-04-18 07:18:50,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:50,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-04-18 07:18:50,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2020-04-18 07:18:50,445 INFO L87 Difference]: Start difference. First operand 4073 states and 10456 transitions. Second operand 26 states. [2020-04-18 07:18:51,564 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-04-18 07:18:51,757 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2020-04-18 07:18:52,131 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2020-04-18 07:18:52,341 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-04-18 07:18:52,712 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-18 07:18:53,234 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-04-18 07:18:53,474 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-04-18 07:18:53,705 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2020-04-18 07:18:53,954 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-04-18 07:18:54,689 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-04-18 07:18:54,935 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2020-04-18 07:18:55,384 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2020-04-18 07:18:55,597 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 07:18:55,755 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:18:56,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:18:56,660 INFO L93 Difference]: Finished difference Result 4376 states and 11075 transitions. [2020-04-18 07:18:56,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-04-18 07:18:56,660 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 109 [2020-04-18 07:18:56,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:18:56,665 INFO L225 Difference]: With dead ends: 4376 [2020-04-18 07:18:56,665 INFO L226 Difference]: Without dead ends: 3859 [2020-04-18 07:18:56,666 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=478, Invalid=2278, Unknown=0, NotChecked=0, Total=2756 [2020-04-18 07:18:56,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2020-04-18 07:18:56,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3765. [2020-04-18 07:18:56,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3765 states. [2020-04-18 07:18:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 9620 transitions. [2020-04-18 07:18:56,718 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 9620 transitions. Word has length 109 [2020-04-18 07:18:56,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:18:56,718 INFO L479 AbstractCegarLoop]: Abstraction has 3765 states and 9620 transitions. [2020-04-18 07:18:56,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-04-18 07:18:56,719 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 9620 transitions. [2020-04-18 07:18:56,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:18:56,723 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:18:56,723 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:18:56,724 INFO L427 AbstractCegarLoop]: === Iteration 37 === [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]=== [2020-04-18 07:18:56,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:18:56,724 INFO L82 PathProgramCache]: Analyzing trace with hash -699882507, now seen corresponding path program 4 times [2020-04-18 07:18:56,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:18:56,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494166602] [2020-04-18 07:18:56,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:18:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:18:59,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:18:59,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494166602] [2020-04-18 07:18:59,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:18:59,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-04-18 07:18:59,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454134570] [2020-04-18 07:18:59,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-04-18 07:18:59,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:18:59,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-04-18 07:18:59,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2020-04-18 07:18:59,023 INFO L87 Difference]: Start difference. First operand 3765 states and 9620 transitions. Second operand 28 states. [2020-04-18 07:18:59,954 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-04-18 07:19:00,210 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-04-18 07:19:00,421 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2020-04-18 07:19:00,809 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-04-18 07:19:01,038 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-04-18 07:19:01,386 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-18 07:19:01,920 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-04-18 07:19:02,180 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-04-18 07:19:02,840 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-04-18 07:19:03,041 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-04-18 07:19:03,298 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-04-18 07:19:03,566 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-04-18 07:19:04,003 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-04-18 07:19:04,220 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:19:04,385 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:19:05,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:05,363 INFO L93 Difference]: Finished difference Result 4093 states and 10296 transitions. [2020-04-18 07:19:05,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-04-18 07:19:05,364 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 109 [2020-04-18 07:19:05,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:05,368 INFO L225 Difference]: With dead ends: 4093 [2020-04-18 07:19:05,368 INFO L226 Difference]: Without dead ends: 3749 [2020-04-18 07:19:05,369 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=496, Invalid=2474, Unknown=0, NotChecked=0, Total=2970 [2020-04-18 07:19:05,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3749 states. [2020-04-18 07:19:05,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3749 to 3655. [2020-04-18 07:19:05,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3655 states. [2020-04-18 07:19:05,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 9312 transitions. [2020-04-18 07:19:05,408 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 9312 transitions. Word has length 109 [2020-04-18 07:19:05,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:05,409 INFO L479 AbstractCegarLoop]: Abstraction has 3655 states and 9312 transitions. [2020-04-18 07:19:05,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-04-18 07:19:05,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 9312 transitions. [2020-04-18 07:19:05,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:19:05,412 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:05,412 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:05,412 INFO L427 AbstractCegarLoop]: === Iteration 38 === [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]=== [2020-04-18 07:19:05,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:05,412 INFO L82 PathProgramCache]: Analyzing trace with hash -110058389, now seen corresponding path program 5 times [2020-04-18 07:19:05,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:05,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672485552] [2020-04-18 07:19:05,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:06,092 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2020-04-18 07:19:06,276 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2020-04-18 07:19:06,466 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2020-04-18 07:19:06,626 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 30 [2020-04-18 07:19:06,871 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2020-04-18 07:19:08,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:19:08,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672485552] [2020-04-18 07:19:08,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:08,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-04-18 07:19:08,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042768692] [2020-04-18 07:19:08,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-04-18 07:19:08,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:08,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-04-18 07:19:08,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2020-04-18 07:19:08,238 INFO L87 Difference]: Start difference. First operand 3655 states and 9312 transitions. Second operand 28 states. [2020-04-18 07:19:09,286 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-04-18 07:19:09,564 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-04-18 07:19:09,781 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2020-04-18 07:19:10,179 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-04-18 07:19:10,417 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-04-18 07:19:10,787 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-18 07:19:11,793 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-04-18 07:19:12,036 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-04-18 07:19:12,328 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-04-18 07:19:12,538 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-04-18 07:19:12,791 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2020-04-18 07:19:13,069 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2020-04-18 07:19:13,541 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2020-04-18 07:19:13,772 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:19:13,944 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:19:15,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:15,027 INFO L93 Difference]: Finished difference Result 4082 states and 10201 transitions. [2020-04-18 07:19:15,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-04-18 07:19:15,027 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 109 [2020-04-18 07:19:15,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:15,030 INFO L225 Difference]: With dead ends: 4082 [2020-04-18 07:19:15,030 INFO L226 Difference]: Without dead ends: 3423 [2020-04-18 07:19:15,031 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=496, Invalid=2474, Unknown=0, NotChecked=0, Total=2970 [2020-04-18 07:19:15,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3423 states. [2020-04-18 07:19:15,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3423 to 3305. [2020-04-18 07:19:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3305 states. [2020-04-18 07:19:15,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 8426 transitions. [2020-04-18 07:19:15,066 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 8426 transitions. Word has length 109 [2020-04-18 07:19:15,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:15,067 INFO L479 AbstractCegarLoop]: Abstraction has 3305 states and 8426 transitions. [2020-04-18 07:19:15,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-04-18 07:19:15,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 8426 transitions. [2020-04-18 07:19:15,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:19:15,070 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:15,070 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:15,070 INFO L427 AbstractCegarLoop]: === Iteration 39 === [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]=== [2020-04-18 07:19:15,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:15,071 INFO L82 PathProgramCache]: Analyzing trace with hash -162857477, now seen corresponding path program 6 times [2020-04-18 07:19:15,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:15,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721437164] [2020-04-18 07:19:15,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:16,152 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 30 [2020-04-18 07:19:16,973 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 22 [2020-04-18 07:19:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:19:17,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721437164] [2020-04-18 07:19:17,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:17,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-04-18 07:19:17,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529972921] [2020-04-18 07:19:17,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-04-18 07:19:17,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:17,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-04-18 07:19:17,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2020-04-18 07:19:17,536 INFO L87 Difference]: Start difference. First operand 3305 states and 8426 transitions. Second operand 25 states. [2020-04-18 07:19:18,412 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-04-18 07:19:18,762 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-04-18 07:19:18,957 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-04-18 07:19:19,275 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-04-18 07:19:19,438 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:19:19,742 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-04-18 07:19:19,975 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-04-18 07:19:20,173 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:19:20,404 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-04-18 07:19:20,620 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-04-18 07:19:20,982 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-04-18 07:19:21,195 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:19:21,829 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-04-18 07:19:22,004 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:19:22,203 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-04-18 07:19:22,864 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-04-18 07:19:23,022 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:19:23,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:23,174 INFO L93 Difference]: Finished difference Result 4217 states and 10595 transitions. [2020-04-18 07:19:23,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-04-18 07:19:23,174 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 109 [2020-04-18 07:19:23,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:23,178 INFO L225 Difference]: With dead ends: 4217 [2020-04-18 07:19:23,179 INFO L226 Difference]: Without dead ends: 3966 [2020-04-18 07:19:23,179 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=471, Invalid=2285, Unknown=0, NotChecked=0, Total=2756 [2020-04-18 07:19:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3966 states. [2020-04-18 07:19:23,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3966 to 3592. [2020-04-18 07:19:23,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3592 states. [2020-04-18 07:19:23,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 9131 transitions. [2020-04-18 07:19:23,220 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 9131 transitions. Word has length 109 [2020-04-18 07:19:23,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:23,220 INFO L479 AbstractCegarLoop]: Abstraction has 3592 states and 9131 transitions. [2020-04-18 07:19:23,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-04-18 07:19:23,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 9131 transitions. [2020-04-18 07:19:23,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:19:23,224 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:23,224 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:23,224 INFO L427 AbstractCegarLoop]: === Iteration 40 === [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]=== [2020-04-18 07:19:23,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:23,224 INFO L82 PathProgramCache]: Analyzing trace with hash 721513659, now seen corresponding path program 7 times [2020-04-18 07:19:23,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:23,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326945044] [2020-04-18 07:19:23,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:24,036 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-04-18 07:19:24,203 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 28 [2020-04-18 07:19:24,346 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 28 [2020-04-18 07:19:24,491 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2020-04-18 07:19:24,914 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 25 [2020-04-18 07:19:25,067 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 25 [2020-04-18 07:19:25,216 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 21 [2020-04-18 07:19:25,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:19:25,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326945044] [2020-04-18 07:19:25,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:25,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-04-18 07:19:25,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47969660] [2020-04-18 07:19:25,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-04-18 07:19:25,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:25,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-04-18 07:19:25,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2020-04-18 07:19:25,661 INFO L87 Difference]: Start difference. First operand 3592 states and 9131 transitions. Second operand 26 states. [2020-04-18 07:19:26,587 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-04-18 07:19:26,944 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-04-18 07:19:27,140 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2020-04-18 07:19:27,503 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-04-18 07:19:27,675 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:19:27,989 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:19:28,232 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-04-18 07:19:28,451 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:19:28,693 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-04-18 07:19:28,913 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-04-18 07:19:29,310 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-04-18 07:19:29,933 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-04-18 07:19:30,179 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 07:19:30,338 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:19:30,502 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:19:30,813 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-04-18 07:19:31,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:31,747 INFO L93 Difference]: Finished difference Result 4063 states and 10178 transitions. [2020-04-18 07:19:31,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-04-18 07:19:31,747 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 109 [2020-04-18 07:19:31,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:31,752 INFO L225 Difference]: With dead ends: 4063 [2020-04-18 07:19:31,752 INFO L226 Difference]: Without dead ends: 3933 [2020-04-18 07:19:31,753 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2020-04-18 07:19:31,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3933 states. [2020-04-18 07:19:31,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3933 to 3559. [2020-04-18 07:19:31,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3559 states. [2020-04-18 07:19:31,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3559 states to 3559 states and 9043 transitions. [2020-04-18 07:19:31,793 INFO L78 Accepts]: Start accepts. Automaton has 3559 states and 9043 transitions. Word has length 109 [2020-04-18 07:19:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:31,793 INFO L479 AbstractCegarLoop]: Abstraction has 3559 states and 9043 transitions. [2020-04-18 07:19:31,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-04-18 07:19:31,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3559 states and 9043 transitions. [2020-04-18 07:19:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:19:31,797 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:31,797 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:31,797 INFO L427 AbstractCegarLoop]: === Iteration 41 === [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]=== [2020-04-18 07:19:31,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:31,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1622361667, now seen corresponding path program 8 times [2020-04-18 07:19:31,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:31,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254913393] [2020-04-18 07:19:31,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:32,463 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2020-04-18 07:19:32,692 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 29 [2020-04-18 07:19:32,852 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 33 [2020-04-18 07:19:33,019 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 27 [2020-04-18 07:19:33,159 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 28 [2020-04-18 07:19:33,317 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 32 [2020-04-18 07:19:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:19:34,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254913393] [2020-04-18 07:19:34,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:34,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-04-18 07:19:34,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122996908] [2020-04-18 07:19:34,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-04-18 07:19:34,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:34,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-04-18 07:19:34,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2020-04-18 07:19:34,500 INFO L87 Difference]: Start difference. First operand 3559 states and 9043 transitions. Second operand 26 states. [2020-04-18 07:19:35,827 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-04-18 07:19:36,026 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2020-04-18 07:19:36,410 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-04-18 07:19:36,586 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:19:36,909 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 07:19:37,160 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-04-18 07:19:37,395 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:19:37,633 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-04-18 07:19:37,853 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-04-18 07:19:38,534 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-04-18 07:19:38,766 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-04-18 07:19:39,165 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-04-18 07:19:39,424 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 07:19:39,593 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:19:40,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:40,562 INFO L93 Difference]: Finished difference Result 4011 states and 10060 transitions. [2020-04-18 07:19:40,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-04-18 07:19:40,562 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 109 [2020-04-18 07:19:40,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:40,566 INFO L225 Difference]: With dead ends: 4011 [2020-04-18 07:19:40,567 INFO L226 Difference]: Without dead ends: 3712 [2020-04-18 07:19:40,568 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=462, Invalid=2294, Unknown=0, NotChecked=0, Total=2756 [2020-04-18 07:19:40,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2020-04-18 07:19:40,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 3405. [2020-04-18 07:19:40,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3405 states. [2020-04-18 07:19:40,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3405 states to 3405 states and 8625 transitions. [2020-04-18 07:19:40,603 INFO L78 Accepts]: Start accepts. Automaton has 3405 states and 8625 transitions. Word has length 109 [2020-04-18 07:19:40,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:40,603 INFO L479 AbstractCegarLoop]: Abstraction has 3405 states and 8625 transitions. [2020-04-18 07:19:40,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-04-18 07:19:40,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3405 states and 8625 transitions. [2020-04-18 07:19:40,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:19:40,606 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:40,607 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:40,607 INFO L427 AbstractCegarLoop]: === Iteration 42 === [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]=== [2020-04-18 07:19:40,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:40,607 INFO L82 PathProgramCache]: Analyzing trace with hash 218352449, now seen corresponding path program 9 times [2020-04-18 07:19:40,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:40,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880244064] [2020-04-18 07:19:40,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:19:42,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880244064] [2020-04-18 07:19:42,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:42,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-04-18 07:19:42,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438742773] [2020-04-18 07:19:42,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-04-18 07:19:42,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:42,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-04-18 07:19:42,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2020-04-18 07:19:42,581 INFO L87 Difference]: Start difference. First operand 3405 states and 8625 transitions. Second operand 24 states. [2020-04-18 07:19:43,739 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-04-18 07:19:43,915 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-04-18 07:19:44,242 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-04-18 07:19:44,657 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:19:44,854 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-04-18 07:19:45,042 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-04-18 07:19:45,512 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2020-04-18 07:19:45,671 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-04-18 07:19:45,897 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2020-04-18 07:19:46,124 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2020-04-18 07:19:46,441 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-04-18 07:19:46,649 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:19:47,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:47,677 INFO L93 Difference]: Finished difference Result 3892 states and 9710 transitions. [2020-04-18 07:19:47,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-04-18 07:19:47,678 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 109 [2020-04-18 07:19:47,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:47,682 INFO L225 Difference]: With dead ends: 3892 [2020-04-18 07:19:47,682 INFO L226 Difference]: Without dead ends: 3677 [2020-04-18 07:19:47,682 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=432, Invalid=2118, Unknown=0, NotChecked=0, Total=2550 [2020-04-18 07:19:47,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3677 states. [2020-04-18 07:19:47,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3677 to 3350. [2020-04-18 07:19:47,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3350 states. [2020-04-18 07:19:47,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 8515 transitions. [2020-04-18 07:19:47,715 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 8515 transitions. Word has length 109 [2020-04-18 07:19:47,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:47,715 INFO L479 AbstractCegarLoop]: Abstraction has 3350 states and 8515 transitions. [2020-04-18 07:19:47,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-04-18 07:19:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 8515 transitions. [2020-04-18 07:19:47,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:19:47,718 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:47,719 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:47,719 INFO L427 AbstractCegarLoop]: === Iteration 43 === [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]=== [2020-04-18 07:19:47,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:47,719 INFO L82 PathProgramCache]: Analyzing trace with hash -477556665, now seen corresponding path program 10 times [2020-04-18 07:19:47,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:47,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591334971] [2020-04-18 07:19:47,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:49,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:19:49,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591334971] [2020-04-18 07:19:49,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:49,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-04-18 07:19:49,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689939336] [2020-04-18 07:19:49,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-04-18 07:19:49,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:49,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-04-18 07:19:49,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2020-04-18 07:19:49,635 INFO L87 Difference]: Start difference. First operand 3350 states and 8515 transitions. Second operand 25 states. [2020-04-18 07:19:50,935 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-04-18 07:19:51,116 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-04-18 07:19:51,469 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-04-18 07:19:51,645 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-04-18 07:19:51,955 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:19:52,196 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-04-18 07:19:52,478 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-04-18 07:19:52,646 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 07:19:52,998 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-04-18 07:19:53,822 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:19:53,998 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:19:55,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:19:55,171 INFO L93 Difference]: Finished difference Result 3925 states and 9834 transitions. [2020-04-18 07:19:55,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-04-18 07:19:55,172 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 109 [2020-04-18 07:19:55,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:19:55,175 INFO L225 Difference]: With dead ends: 3925 [2020-04-18 07:19:55,176 INFO L226 Difference]: Without dead ends: 3674 [2020-04-18 07:19:55,177 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2020-04-18 07:19:55,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2020-04-18 07:19:55,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3548. [2020-04-18 07:19:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3548 states. [2020-04-18 07:19:55,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 8988 transitions. [2020-04-18 07:19:55,214 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 8988 transitions. Word has length 109 [2020-04-18 07:19:55,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:19:55,214 INFO L479 AbstractCegarLoop]: Abstraction has 3548 states and 8988 transitions. [2020-04-18 07:19:55,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-04-18 07:19:55,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 8988 transitions. [2020-04-18 07:19:55,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:19:55,218 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:19:55,218 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:19:55,219 INFO L427 AbstractCegarLoop]: === Iteration 44 === [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]=== [2020-04-18 07:19:55,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:19:55,219 INFO L82 PathProgramCache]: Analyzing trace with hash 406814471, now seen corresponding path program 11 times [2020-04-18 07:19:55,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:19:55,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218223427] [2020-04-18 07:19:55,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:19:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:19:56,354 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 32 [2020-04-18 07:19:57,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:19:57,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218223427] [2020-04-18 07:19:57,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:19:57,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-04-18 07:19:57,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712456811] [2020-04-18 07:19:57,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-04-18 07:19:57,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:19:57,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-04-18 07:19:57,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2020-04-18 07:19:57,107 INFO L87 Difference]: Start difference. First operand 3548 states and 8988 transitions. Second operand 26 states. [2020-04-18 07:19:58,401 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-04-18 07:19:58,579 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-04-18 07:19:58,915 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-04-18 07:19:59,091 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:19:59,410 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:19:59,640 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-04-18 07:19:59,900 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-04-18 07:20:00,054 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:20:00,394 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 07:20:00,872 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-04-18 07:20:01,095 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:20:02,342 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-04-18 07:20:02,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:02,620 INFO L93 Difference]: Finished difference Result 3771 states and 9417 transitions. [2020-04-18 07:20:02,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-04-18 07:20:02,621 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 109 [2020-04-18 07:20:02,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:02,624 INFO L225 Difference]: With dead ends: 3771 [2020-04-18 07:20:02,624 INFO L226 Difference]: Without dead ends: 3641 [2020-04-18 07:20:02,625 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=466, Invalid=2396, Unknown=0, NotChecked=0, Total=2862 [2020-04-18 07:20:02,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3641 states. [2020-04-18 07:20:02,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3641 to 3515. [2020-04-18 07:20:02,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3515 states. [2020-04-18 07:20:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3515 states to 3515 states and 8900 transitions. [2020-04-18 07:20:02,661 INFO L78 Accepts]: Start accepts. Automaton has 3515 states and 8900 transitions. Word has length 109 [2020-04-18 07:20:02,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:02,661 INFO L479 AbstractCegarLoop]: Abstraction has 3515 states and 8900 transitions. [2020-04-18 07:20:02,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-04-18 07:20:02,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3515 states and 8900 transitions. [2020-04-18 07:20:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:20:02,664 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:02,664 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:02,665 INFO L427 AbstractCegarLoop]: === Iteration 45 === [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]=== [2020-04-18 07:20:02,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:02,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1307662479, now seen corresponding path program 12 times [2020-04-18 07:20:02,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:02,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265435148] [2020-04-18 07:20:02,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:20:04,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265435148] [2020-04-18 07:20:04,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:04,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-04-18 07:20:04,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990678768] [2020-04-18 07:20:04,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-04-18 07:20:04,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:04,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-04-18 07:20:04,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2020-04-18 07:20:04,572 INFO L87 Difference]: Start difference. First operand 3515 states and 8900 transitions. Second operand 26 states. [2020-04-18 07:20:05,841 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-04-18 07:20:06,016 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-04-18 07:20:06,359 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-04-18 07:20:06,536 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:20:06,843 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:20:07,089 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-04-18 07:20:07,360 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-04-18 07:20:07,508 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:20:08,089 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-04-18 07:20:08,256 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-04-18 07:20:08,561 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-04-18 07:20:08,801 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:20:09,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:09,918 INFO L93 Difference]: Finished difference Result 3719 states and 9299 transitions. [2020-04-18 07:20:09,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-04-18 07:20:09,918 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 109 [2020-04-18 07:20:09,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:09,923 INFO L225 Difference]: With dead ends: 3719 [2020-04-18 07:20:09,923 INFO L226 Difference]: Without dead ends: 3420 [2020-04-18 07:20:09,923 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=438, Invalid=2214, Unknown=0, NotChecked=0, Total=2652 [2020-04-18 07:20:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3420 states. [2020-04-18 07:20:09,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3420 to 3361. [2020-04-18 07:20:09,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3361 states. [2020-04-18 07:20:09,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 8526 transitions. [2020-04-18 07:20:09,956 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 8526 transitions. Word has length 109 [2020-04-18 07:20:09,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:09,956 INFO L479 AbstractCegarLoop]: Abstraction has 3361 states and 8526 transitions. [2020-04-18 07:20:09,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-04-18 07:20:09,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 8526 transitions. [2020-04-18 07:20:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:20:09,959 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:09,959 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:09,959 INFO L427 AbstractCegarLoop]: === Iteration 46 === [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]=== [2020-04-18 07:20:09,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:09,960 INFO L82 PathProgramCache]: Analyzing trace with hash -82072947, now seen corresponding path program 13 times [2020-04-18 07:20:09,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:09,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905620] [2020-04-18 07:20:09,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:12,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:20:12,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905620] [2020-04-18 07:20:12,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:12,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2020-04-18 07:20:12,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803302250] [2020-04-18 07:20:12,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-04-18 07:20:12,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:12,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-04-18 07:20:12,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2020-04-18 07:20:12,207 INFO L87 Difference]: Start difference. First operand 3361 states and 8526 transitions. Second operand 27 states. [2020-04-18 07:20:13,211 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-04-18 07:20:13,454 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-04-18 07:20:13,644 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-04-18 07:20:14,013 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-04-18 07:20:14,621 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2020-04-18 07:20:14,951 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-04-18 07:20:15,124 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:20:15,333 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-04-18 07:20:15,598 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-04-18 07:20:16,216 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-04-18 07:20:16,499 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-04-18 07:20:16,734 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-04-18 07:20:16,902 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-04-18 07:20:17,247 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-04-18 07:20:17,500 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:20:17,672 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:20:18,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:18,724 INFO L93 Difference]: Finished difference Result 3570 states and 8941 transitions. [2020-04-18 07:20:18,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-04-18 07:20:18,727 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 109 [2020-04-18 07:20:18,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:18,731 INFO L225 Difference]: With dead ends: 3570 [2020-04-18 07:20:18,731 INFO L226 Difference]: Without dead ends: 3412 [2020-04-18 07:20:18,731 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=523, Invalid=2447, Unknown=0, NotChecked=0, Total=2970 [2020-04-18 07:20:18,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2020-04-18 07:20:18,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3372. [2020-04-18 07:20:18,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3372 states. [2020-04-18 07:20:18,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3372 states to 3372 states and 8558 transitions. [2020-04-18 07:20:18,765 INFO L78 Accepts]: Start accepts. Automaton has 3372 states and 8558 transitions. Word has length 109 [2020-04-18 07:20:18,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:18,766 INFO L479 AbstractCegarLoop]: Abstraction has 3372 states and 8558 transitions. [2020-04-18 07:20:18,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-04-18 07:20:18,766 INFO L276 IsEmpty]: Start isEmpty. Operand 3372 states and 8558 transitions. [2020-04-18 07:20:18,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:20:18,770 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:18,770 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:18,770 INFO L427 AbstractCegarLoop]: === Iteration 47 === [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]=== [2020-04-18 07:20:18,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:18,770 INFO L82 PathProgramCache]: Analyzing trace with hash 381918199, now seen corresponding path program 14 times [2020-04-18 07:20:18,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:18,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882630063] [2020-04-18 07:20:18,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:19,429 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 23 [2020-04-18 07:20:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:20:20,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882630063] [2020-04-18 07:20:20,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:20,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-04-18 07:20:20,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762200969] [2020-04-18 07:20:20,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-04-18 07:20:20,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:20,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-04-18 07:20:20,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2020-04-18 07:20:20,969 INFO L87 Difference]: Start difference. First operand 3372 states and 8558 transitions. Second operand 24 states. [2020-04-18 07:20:22,099 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-04-18 07:20:22,284 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-04-18 07:20:22,595 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-04-18 07:20:23,009 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:20:23,382 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:20:23,559 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-04-18 07:20:23,745 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-04-18 07:20:23,944 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-04-18 07:20:24,142 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-04-18 07:20:24,449 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-04-18 07:20:25,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:25,662 INFO L93 Difference]: Finished difference Result 3615 states and 9033 transitions. [2020-04-18 07:20:25,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-04-18 07:20:25,662 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 109 [2020-04-18 07:20:25,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:25,667 INFO L225 Difference]: With dead ends: 3615 [2020-04-18 07:20:25,668 INFO L226 Difference]: Without dead ends: 3455 [2020-04-18 07:20:25,668 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=409, Invalid=2041, Unknown=0, NotChecked=0, Total=2450 [2020-04-18 07:20:25,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3455 states. [2020-04-18 07:20:25,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3455 to 3374. [2020-04-18 07:20:25,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3374 states. [2020-04-18 07:20:25,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 8561 transitions. [2020-04-18 07:20:25,706 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 8561 transitions. Word has length 109 [2020-04-18 07:20:25,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:25,706 INFO L479 AbstractCegarLoop]: Abstraction has 3374 states and 8561 transitions. [2020-04-18 07:20:25,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-04-18 07:20:25,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 8561 transitions. [2020-04-18 07:20:25,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:20:25,709 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:25,710 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:25,710 INFO L427 AbstractCegarLoop]: === Iteration 48 === [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]=== [2020-04-18 07:20:25,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:25,710 INFO L82 PathProgramCache]: Analyzing trace with hash 439999811, now seen corresponding path program 15 times [2020-04-18 07:20:25,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:25,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088451995] [2020-04-18 07:20:25,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:26,794 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2020-04-18 07:20:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:20:27,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088451995] [2020-04-18 07:20:27,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:27,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-04-18 07:20:27,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438296710] [2020-04-18 07:20:27,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-04-18 07:20:27,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:27,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-04-18 07:20:27,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2020-04-18 07:20:27,869 INFO L87 Difference]: Start difference. First operand 3374 states and 8561 transitions. Second operand 24 states. [2020-04-18 07:20:29,000 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-04-18 07:20:29,178 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-04-18 07:20:29,510 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-04-18 07:20:29,929 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 07:20:30,336 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-04-18 07:20:30,532 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-04-18 07:20:30,796 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-04-18 07:20:30,969 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-04-18 07:20:31,246 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-04-18 07:20:32,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:32,462 INFO L93 Difference]: Finished difference Result 3541 states and 8877 transitions. [2020-04-18 07:20:32,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-04-18 07:20:32,462 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 109 [2020-04-18 07:20:32,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:32,466 INFO L225 Difference]: With dead ends: 3541 [2020-04-18 07:20:32,467 INFO L226 Difference]: Without dead ends: 3381 [2020-04-18 07:20:32,467 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=389, Invalid=1963, Unknown=0, NotChecked=0, Total=2352 [2020-04-18 07:20:32,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2020-04-18 07:20:32,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3361. [2020-04-18 07:20:32,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3361 states. [2020-04-18 07:20:32,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 8536 transitions. [2020-04-18 07:20:32,503 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 8536 transitions. Word has length 109 [2020-04-18 07:20:32,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:32,504 INFO L479 AbstractCegarLoop]: Abstraction has 3361 states and 8536 transitions. [2020-04-18 07:20:32,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-04-18 07:20:32,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 8536 transitions. [2020-04-18 07:20:32,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:20:32,507 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:32,507 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:32,507 INFO L427 AbstractCegarLoop]: === Iteration 49 === [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]=== [2020-04-18 07:20:32,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:32,507 INFO L82 PathProgramCache]: Analyzing trace with hash -85279189, now seen corresponding path program 16 times [2020-04-18 07:20:32,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:32,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915313629] [2020-04-18 07:20:32,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:34,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:20:34,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915313629] [2020-04-18 07:20:34,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:34,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2020-04-18 07:20:34,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342229445] [2020-04-18 07:20:34,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-04-18 07:20:34,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:34,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-04-18 07:20:34,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2020-04-18 07:20:34,636 INFO L87 Difference]: Start difference. First operand 3361 states and 8536 transitions. Second operand 27 states. [2020-04-18 07:20:35,910 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-04-18 07:20:36,098 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-04-18 07:20:36,429 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-04-18 07:20:37,056 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:20:37,489 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-04-18 07:20:37,701 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-04-18 07:20:37,908 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 07:20:38,209 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-04-18 07:20:38,383 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:20:38,584 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-04-18 07:20:38,838 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-04-18 07:20:39,111 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2020-04-18 07:20:39,540 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2020-04-18 07:20:39,804 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 07:20:39,969 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:20:41,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:41,003 INFO L93 Difference]: Finished difference Result 3706 states and 9236 transitions. [2020-04-18 07:20:41,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-04-18 07:20:41,003 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 109 [2020-04-18 07:20:41,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:41,007 INFO L225 Difference]: With dead ends: 3706 [2020-04-18 07:20:41,008 INFO L226 Difference]: Without dead ends: 3501 [2020-04-18 07:20:41,008 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=501, Invalid=2469, Unknown=0, NotChecked=0, Total=2970 [2020-04-18 07:20:41,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2020-04-18 07:20:41,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 3367. [2020-04-18 07:20:41,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3367 states. [2020-04-18 07:20:41,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 8545 transitions. [2020-04-18 07:20:41,042 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 8545 transitions. Word has length 109 [2020-04-18 07:20:41,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:41,043 INFO L479 AbstractCegarLoop]: Abstraction has 3367 states and 8545 transitions. [2020-04-18 07:20:41,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-04-18 07:20:41,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 8545 transitions. [2020-04-18 07:20:41,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:20:41,046 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:41,046 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:41,046 INFO L427 AbstractCegarLoop]: === Iteration 50 === [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]=== [2020-04-18 07:20:41,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:41,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1979151681, now seen corresponding path program 17 times [2020-04-18 07:20:41,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:41,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158612823] [2020-04-18 07:20:41,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:43,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:20:43,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158612823] [2020-04-18 07:20:43,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:43,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2020-04-18 07:20:43,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109890513] [2020-04-18 07:20:43,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-04-18 07:20:43,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:43,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-04-18 07:20:43,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2020-04-18 07:20:43,281 INFO L87 Difference]: Start difference. First operand 3367 states and 8545 transitions. Second operand 27 states. [2020-04-18 07:20:44,448 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-04-18 07:20:44,636 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-04-18 07:20:44,974 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-04-18 07:20:45,588 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-04-18 07:20:46,019 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-04-18 07:20:46,301 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-04-18 07:20:46,519 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-04-18 07:20:46,705 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:20:46,892 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 07:20:47,135 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-04-18 07:20:47,383 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-04-18 07:20:47,785 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-04-18 07:20:48,032 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 07:20:48,200 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:20:49,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:49,207 INFO L93 Difference]: Finished difference Result 3606 states and 9006 transitions. [2020-04-18 07:20:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-04-18 07:20:49,207 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 109 [2020-04-18 07:20:49,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:49,212 INFO L225 Difference]: With dead ends: 3606 [2020-04-18 07:20:49,213 INFO L226 Difference]: Without dead ends: 3446 [2020-04-18 07:20:49,213 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=489, Invalid=2373, Unknown=0, NotChecked=0, Total=2862 [2020-04-18 07:20:49,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2020-04-18 07:20:49,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 3369. [2020-04-18 07:20:49,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3369 states. [2020-04-18 07:20:49,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3369 states to 3369 states and 8548 transitions. [2020-04-18 07:20:49,251 INFO L78 Accepts]: Start accepts. Automaton has 3369 states and 8548 transitions. Word has length 109 [2020-04-18 07:20:49,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:49,251 INFO L479 AbstractCegarLoop]: Abstraction has 3369 states and 8548 transitions. [2020-04-18 07:20:49,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-04-18 07:20:49,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3369 states and 8548 transitions. [2020-04-18 07:20:49,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:20:49,256 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:49,257 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:49,257 INFO L427 AbstractCegarLoop]: === Iteration 51 === [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]=== [2020-04-18 07:20:49,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:49,257 INFO L82 PathProgramCache]: Analyzing trace with hash 2037233293, now seen corresponding path program 18 times [2020-04-18 07:20:49,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:49,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976067276] [2020-04-18 07:20:49,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:20:51,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976067276] [2020-04-18 07:20:51,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:51,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-04-18 07:20:51,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347291156] [2020-04-18 07:20:51,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-04-18 07:20:51,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:51,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-04-18 07:20:51,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2020-04-18 07:20:51,249 INFO L87 Difference]: Start difference. First operand 3369 states and 8548 transitions. Second operand 24 states. [2020-04-18 07:20:52,471 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-04-18 07:20:52,662 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-04-18 07:20:53,016 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-04-18 07:20:53,629 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:20:53,841 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-04-18 07:20:54,033 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-04-18 07:20:54,268 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-04-18 07:20:54,428 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-04-18 07:20:54,728 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-04-18 07:20:54,950 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-04-18 07:20:55,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:20:55,999 INFO L93 Difference]: Finished difference Result 3524 states and 8830 transitions. [2020-04-18 07:20:55,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-04-18 07:20:56,000 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 109 [2020-04-18 07:20:56,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:20:56,004 INFO L225 Difference]: With dead ends: 3524 [2020-04-18 07:20:56,004 INFO L226 Difference]: Without dead ends: 3333 [2020-04-18 07:20:56,004 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=389, Invalid=1963, Unknown=0, NotChecked=0, Total=2352 [2020-04-18 07:20:56,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2020-04-18 07:20:56,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 3333. [2020-04-18 07:20:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3333 states. [2020-04-18 07:20:56,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3333 states to 3333 states and 8488 transitions. [2020-04-18 07:20:56,038 INFO L78 Accepts]: Start accepts. Automaton has 3333 states and 8488 transitions. Word has length 109 [2020-04-18 07:20:56,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:20:56,038 INFO L479 AbstractCegarLoop]: Abstraction has 3333 states and 8488 transitions. [2020-04-18 07:20:56,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-04-18 07:20:56,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3333 states and 8488 transitions. [2020-04-18 07:20:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:20:56,042 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:20:56,042 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:20:56,042 INFO L427 AbstractCegarLoop]: === Iteration 52 === [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]=== [2020-04-18 07:20:56,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:20:56,042 INFO L82 PathProgramCache]: Analyzing trace with hash -623005871, now seen corresponding path program 19 times [2020-04-18 07:20:56,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:20:56,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582106677] [2020-04-18 07:20:56,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:20:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:20:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:20:58,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582106677] [2020-04-18 07:20:58,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:20:58,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-04-18 07:20:58,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268045927] [2020-04-18 07:20:58,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-04-18 07:20:58,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:20:58,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-04-18 07:20:58,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2020-04-18 07:20:58,402 INFO L87 Difference]: Start difference. First operand 3333 states and 8488 transitions. Second operand 28 states. [2020-04-18 07:20:59,488 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-04-18 07:20:59,785 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-04-18 07:20:59,987 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2020-04-18 07:21:00,484 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-18 07:21:00,898 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-04-18 07:21:02,058 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2020-04-18 07:21:02,458 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2020-04-18 07:21:02,683 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-04-18 07:21:02,924 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-04-18 07:21:03,290 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-04-18 07:21:03,546 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-04-18 07:21:03,724 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:21:04,657 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-04-18 07:21:04,866 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-04-18 07:21:05,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:21:05,029 INFO L93 Difference]: Finished difference Result 3736 states and 9320 transitions. [2020-04-18 07:21:05,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-04-18 07:21:05,029 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 109 [2020-04-18 07:21:05,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:21:05,033 INFO L225 Difference]: With dead ends: 3736 [2020-04-18 07:21:05,033 INFO L226 Difference]: Without dead ends: 3549 [2020-04-18 07:21:05,033 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2020-04-18 07:21:05,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3549 states. [2020-04-18 07:21:05,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3549 to 3423. [2020-04-18 07:21:05,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3423 states. [2020-04-18 07:21:05,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3423 states to 3423 states and 8719 transitions. [2020-04-18 07:21:05,072 INFO L78 Accepts]: Start accepts. Automaton has 3423 states and 8719 transitions. Word has length 109 [2020-04-18 07:21:05,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:21:05,072 INFO L479 AbstractCegarLoop]: Abstraction has 3423 states and 8719 transitions. [2020-04-18 07:21:05,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-04-18 07:21:05,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3423 states and 8719 transitions. [2020-04-18 07:21:05,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:21:05,076 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:21:05,076 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:21:05,076 INFO L427 AbstractCegarLoop]: === Iteration 53 === [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]=== [2020-04-18 07:21:05,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:21:05,077 INFO L82 PathProgramCache]: Analyzing trace with hash 753633963, now seen corresponding path program 20 times [2020-04-18 07:21:05,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:21:05,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92770048] [2020-04-18 07:21:05,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:21:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:21:07,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:21:07,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92770048] [2020-04-18 07:21:07,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:21:07,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-04-18 07:21:07,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649480990] [2020-04-18 07:21:07,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-04-18 07:21:07,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:21:07,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-04-18 07:21:07,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2020-04-18 07:21:07,113 INFO L87 Difference]: Start difference. First operand 3423 states and 8719 transitions. Second operand 25 states. [2020-04-18 07:21:08,082 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-04-18 07:21:08,361 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-04-18 07:21:08,561 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2020-04-18 07:21:09,068 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-04-18 07:21:09,477 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-04-18 07:21:10,120 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2020-04-18 07:21:10,404 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-04-18 07:21:10,616 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-04-18 07:21:11,298 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-04-18 07:21:11,476 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-04-18 07:21:11,783 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-04-18 07:21:12,020 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-04-18 07:21:12,195 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-04-18 07:21:13,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:21:13,154 INFO L93 Difference]: Finished difference Result 3968 states and 9922 transitions. [2020-04-18 07:21:13,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-04-18 07:21:13,154 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 109 [2020-04-18 07:21:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:21:13,159 INFO L225 Difference]: With dead ends: 3968 [2020-04-18 07:21:13,160 INFO L226 Difference]: Without dead ends: 3823 [2020-04-18 07:21:13,160 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=428, Invalid=2022, Unknown=0, NotChecked=0, Total=2450 [2020-04-18 07:21:13,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3823 states. [2020-04-18 07:21:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3823 to 3588. [2020-04-18 07:21:13,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3588 states. [2020-04-18 07:21:13,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 9123 transitions. [2020-04-18 07:21:13,198 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 9123 transitions. Word has length 109 [2020-04-18 07:21:13,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:21:13,198 INFO L479 AbstractCegarLoop]: Abstraction has 3588 states and 9123 transitions. [2020-04-18 07:21:13,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-04-18 07:21:13,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 9123 transitions. [2020-04-18 07:21:13,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-04-18 07:21:13,201 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:21:13,202 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:21:13,202 INFO L427 AbstractCegarLoop]: === Iteration 54 === [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]=== [2020-04-18 07:21:13,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:21:13,202 INFO L82 PathProgramCache]: Analyzing trace with hash 33425779, now seen corresponding path program 21 times [2020-04-18 07:21:13,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:21:13,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557065043] [2020-04-18 07:21:13,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:21:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2020-04-18 07:21:13,661 WARN L209 SmtUtils]: Removed 8 from assertion stack [2020-04-18 07:21:13,662 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 07:21:13,666 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 07:21:13,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:21:13 BasicIcfg [2020-04-18 07:21:13,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:21:13,668 INFO L168 Benchmark]: Toolchain (without parser) took 239488.21 ms. Allocated memory was 146.3 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 101.3 MB in the beginning and 693.6 MB in the end (delta: -592.3 MB). Peak memory consumption was 471.5 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:13,668 INFO L168 Benchmark]: CDTParser took 1.36 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 07:21:13,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1369.19 ms. Allocated memory was 146.3 MB in the beginning and 237.0 MB in the end (delta: 90.7 MB). Free memory was 99.4 MB in the beginning and 175.6 MB in the end (delta: -76.2 MB). Peak memory consumption was 71.9 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:13,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.21 ms. Allocated memory is still 237.0 MB. Free memory was 175.6 MB in the beginning and 171.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:13,669 INFO L168 Benchmark]: Boogie Preprocessor took 51.16 ms. Allocated memory is still 237.0 MB. Free memory was 171.2 MB in the beginning and 168.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:13,669 INFO L168 Benchmark]: RCFGBuilder took 854.42 ms. Allocated memory is still 237.0 MB. Free memory was 168.3 MB in the beginning and 119.9 MB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:13,669 INFO L168 Benchmark]: TraceAbstraction took 237107.61 ms. Allocated memory was 237.0 MB in the beginning and 1.2 GB in the end (delta: 973.1 MB). Free memory was 119.9 MB in the beginning and 693.6 MB in the end (delta: -573.7 MB). Peak memory consumption was 399.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:21:13,671 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.36 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1369.19 ms. Allocated memory was 146.3 MB in the beginning and 237.0 MB in the end (delta: 90.7 MB). Free memory was 99.4 MB in the beginning and 175.6 MB in the end (delta: -76.2 MB). Peak memory consumption was 71.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 73.21 ms. Allocated memory is still 237.0 MB. Free memory was 175.6 MB in the beginning and 171.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.16 ms. Allocated memory is still 237.0 MB. Free memory was 171.2 MB in the beginning and 168.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 854.42 ms. Allocated memory is still 237.0 MB. Free memory was 168.3 MB in the beginning and 119.9 MB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 237107.61 ms. Allocated memory was 237.0 MB in the beginning and 1.2 GB in the end (delta: 973.1 MB). Free memory was 119.9 MB in the beginning and 693.6 MB in the end (delta: -573.7 MB). Peak memory consumption was 399.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 40 for 24ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 40 for 24ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 40 for 24ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 40 for 24ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 40 for 24ms.. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 40 for 24ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 236.9s, OverallIterations: 54, TraceHistogramMax: 1, AutomataDifference: 163.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 10019 SDtfs, 34507 SDslu, 65943 SDs, 0 SdLazy, 36188 SolverSat, 2728 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2012 GetRequests, 160 SyntacticMatches, 140 SemanticMatches, 1712 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11653 ImplicationChecksByTransitivity, 147.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8009occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.0s AutomataMinimizationTime, 53 MinimizatonAttempts, 59133 StatesRemovedByMinimization, 51 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 62.7s InterpolantComputationTime, 5322 NumberOfCodeBlocks, 5322 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 5269 ConstructedInterpolants, 0 QuantifiedInterpolants, 7847811 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 53 InterpolantComputations, 53 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 could not prove your program: Timeout Completed graceful shutdown