/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 11:02:12,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 11:02:12,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 11:02:12,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 11:02:12,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 11:02:12,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 11:02:12,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 11:02:12,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 11:02:12,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 11:02:12,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 11:02:12,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 11:02:12,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 11:02:12,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 11:02:12,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 11:02:12,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 11:02:12,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 11:02:12,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 11:02:12,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 11:02:12,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 11:02:12,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 11:02:12,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 11:02:12,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 11:02:12,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 11:02:12,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 11:02:12,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 11:02:12,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 11:02:12,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 11:02:12,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 11:02:12,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 11:02:12,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 11:02:12,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 11:02:12,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 11:02:12,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 11:02:12,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 11:02:12,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 11:02:12,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 11:02:12,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 11:02:12,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 11:02:12,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 11:02:12,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 11:02:12,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 11:02:12,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 11:02:12,253 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 11:02:12,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 11:02:12,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 11:02:12,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 11:02:12,256 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 11:02:12,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 11:02:12,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 11:02:12,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 11:02:12,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 11:02:12,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 11:02:12,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 11:02:12,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 11:02:12,258 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 11:02:12,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 11:02:12,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 11:02:12,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 11:02:12,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 11:02:12,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:02:12,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 11:02:12,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 11:02:12,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 11:02:12,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 11:02:12,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 11:02:12,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 11:02:12,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 11:02:12,260 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 11:02:12,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 11:02:12,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 11:02:12,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 11:02:12,709 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 11:02:12,710 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 11:02:12,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 11:02:12,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fab9749a4/cbda9a842d3440c6a54afda4fad352a1/FLAGf302cfdde [2020-12-23 11:02:13,513 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 11:02:13,514 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 11:02:13,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fab9749a4/cbda9a842d3440c6a54afda4fad352a1/FLAGf302cfdde [2020-12-23 11:02:13,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fab9749a4/cbda9a842d3440c6a54afda4fad352a1 [2020-12-23 11:02:13,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 11:02:13,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 11:02:13,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 11:02:13,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 11:02:13,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 11:02:13,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:02:13" (1/1) ... [2020-12-23 11:02:13,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87e31a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:13, skipping insertion in model container [2020-12-23 11:02:13,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:02:13" (1/1) ... [2020-12-23 11:02:13,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 11:02:13,936 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1389~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1465~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2020-12-23 11:02:14,144 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[3701,3714] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 11:02:14,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:02:14,188 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1389~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1465~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2020-12-23 11:02:14,232 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[3701,3714] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 11:02:14,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:02:14,271 INFO L208 MainTranslator]: Completed translation [2020-12-23 11:02:14,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14 WrapperNode [2020-12-23 11:02:14,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 11:02:14,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 11:02:14,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 11:02:14,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 11:02:14,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14" (1/1) ... [2020-12-23 11:02:14,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14" (1/1) ... [2020-12-23 11:02:14,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 11:02:14,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 11:02:14,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 11:02:14,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 11:02:14,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14" (1/1) ... [2020-12-23 11:02:14,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14" (1/1) ... [2020-12-23 11:02:14,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14" (1/1) ... [2020-12-23 11:02:14,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14" (1/1) ... [2020-12-23 11:02:14,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14" (1/1) ... [2020-12-23 11:02:14,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14" (1/1) ... [2020-12-23 11:02:14,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14" (1/1) ... [2020-12-23 11:02:14,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 11:02:14,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 11:02:14,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 11:02:14,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 11:02:14,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:02:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 11:02:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 11:02:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 11:02:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 11:02:15,366 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 11:02:15,366 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 11:02:15,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:02:15 BoogieIcfgContainer [2020-12-23 11:02:15,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 11:02:15,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 11:02:15,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 11:02:15,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 11:02:15,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:02:13" (1/3) ... [2020-12-23 11:02:15,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4974e338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:02:15, skipping insertion in model container [2020-12-23 11:02:15,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:14" (2/3) ... [2020-12-23 11:02:15,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4974e338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:02:15, skipping insertion in model container [2020-12-23 11:02:15,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:02:15" (3/3) ... [2020-12-23 11:02:15,377 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 11:02:15,384 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 11:02:15,390 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 11:02:15,410 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 11:02:15,439 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 11:02:15,439 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 11:02:15,439 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 11:02:15,439 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 11:02:15,440 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 11:02:15,440 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 11:02:15,440 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 11:02:15,440 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 11:02:15,457 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-12-23 11:02:15,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-23 11:02:15,464 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:15,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:15,466 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:15,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:15,472 INFO L82 PathProgramCache]: Analyzing trace with hash -976687966, now seen corresponding path program 1 times [2020-12-23 11:02:15,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:15,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110470321] [2020-12-23 11:02:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:15,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:15,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110470321] [2020-12-23 11:02:15,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:15,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:02:15,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061320183] [2020-12-23 11:02:15,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:02:15,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:15,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:02:15,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:02:15,820 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 3 states. [2020-12-23 11:02:15,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:15,949 INFO L93 Difference]: Finished difference Result 146 states and 230 transitions. [2020-12-23 11:02:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:02:15,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-12-23 11:02:15,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:15,968 INFO L225 Difference]: With dead ends: 146 [2020-12-23 11:02:15,981 INFO L226 Difference]: Without dead ends: 95 [2020-12-23 11:02:15,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:02:16,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-12-23 11:02:16,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2020-12-23 11:02:16,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-23 11:02:16,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 136 transitions. [2020-12-23 11:02:16,067 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 136 transitions. Word has length 37 [2020-12-23 11:02:16,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:16,068 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 136 transitions. [2020-12-23 11:02:16,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:02:16,069 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 136 transitions. [2020-12-23 11:02:16,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-23 11:02:16,072 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:16,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:16,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 11:02:16,074 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:16,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:16,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1572742836, now seen corresponding path program 1 times [2020-12-23 11:02:16,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:16,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279338925] [2020-12-23 11:02:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:16,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279338925] [2020-12-23 11:02:16,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:16,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:02:16,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728777871] [2020-12-23 11:02:16,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:02:16,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:16,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:02:16,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:02:16,263 INFO L87 Difference]: Start difference. First operand 93 states and 136 transitions. Second operand 3 states. [2020-12-23 11:02:16,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:16,310 INFO L93 Difference]: Finished difference Result 225 states and 344 transitions. [2020-12-23 11:02:16,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:02:16,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-12-23 11:02:16,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:16,314 INFO L225 Difference]: With dead ends: 225 [2020-12-23 11:02:16,314 INFO L226 Difference]: Without dead ends: 151 [2020-12-23 11:02:16,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:02:16,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-12-23 11:02:16,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2020-12-23 11:02:16,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-12-23 11:02:16,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2020-12-23 11:02:16,373 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 224 transitions. Word has length 38 [2020-12-23 11:02:16,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:16,373 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 224 transitions. [2020-12-23 11:02:16,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:02:16,373 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 224 transitions. [2020-12-23 11:02:16,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-23 11:02:16,378 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:16,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:16,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 11:02:16,379 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:16,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:16,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1624580866, now seen corresponding path program 1 times [2020-12-23 11:02:16,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:16,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295434644] [2020-12-23 11:02:16,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:16,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:16,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295434644] [2020-12-23 11:02:16,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:16,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:02:16,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556568448] [2020-12-23 11:02:16,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:02:16,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:16,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:02:16,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:16,533 INFO L87 Difference]: Start difference. First operand 149 states and 224 transitions. Second operand 5 states. [2020-12-23 11:02:16,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:16,677 INFO L93 Difference]: Finished difference Result 279 states and 429 transitions. [2020-12-23 11:02:16,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:02:16,678 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-12-23 11:02:16,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:16,680 INFO L225 Difference]: With dead ends: 279 [2020-12-23 11:02:16,680 INFO L226 Difference]: Without dead ends: 149 [2020-12-23 11:02:16,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 11:02:16,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-12-23 11:02:16,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-12-23 11:02:16,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-12-23 11:02:16,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 220 transitions. [2020-12-23 11:02:16,707 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 220 transitions. Word has length 39 [2020-12-23 11:02:16,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:16,708 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 220 transitions. [2020-12-23 11:02:16,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:02:16,708 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 220 transitions. [2020-12-23 11:02:16,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-23 11:02:16,709 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:16,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:16,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 11:02:16,710 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:16,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:16,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1223356835, now seen corresponding path program 1 times [2020-12-23 11:02:16,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:16,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615463336] [2020-12-23 11:02:16,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:16,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:16,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615463336] [2020-12-23 11:02:16,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:16,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:02:16,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995264403] [2020-12-23 11:02:16,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:02:16,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:16,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:02:16,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:16,798 INFO L87 Difference]: Start difference. First operand 149 states and 220 transitions. Second operand 5 states. [2020-12-23 11:02:16,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:16,906 INFO L93 Difference]: Finished difference Result 279 states and 421 transitions. [2020-12-23 11:02:16,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:02:16,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-12-23 11:02:16,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:16,909 INFO L225 Difference]: With dead ends: 279 [2020-12-23 11:02:16,909 INFO L226 Difference]: Without dead ends: 149 [2020-12-23 11:02:16,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 11:02:16,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-12-23 11:02:16,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-12-23 11:02:16,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-12-23 11:02:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 218 transitions. [2020-12-23 11:02:16,933 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 218 transitions. Word has length 39 [2020-12-23 11:02:16,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:16,933 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 218 transitions. [2020-12-23 11:02:16,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:02:16,933 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 218 transitions. [2020-12-23 11:02:16,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-23 11:02:16,935 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:16,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:16,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 11:02:16,935 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:16,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:16,936 INFO L82 PathProgramCache]: Analyzing trace with hash -618673698, now seen corresponding path program 1 times [2020-12-23 11:02:16,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:16,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2617936] [2020-12-23 11:02:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:17,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:17,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2617936] [2020-12-23 11:02:17,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:17,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:02:17,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137800536] [2020-12-23 11:02:17,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:02:17,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:17,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:02:17,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:17,049 INFO L87 Difference]: Start difference. First operand 149 states and 218 transitions. Second operand 5 states. [2020-12-23 11:02:17,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:17,193 INFO L93 Difference]: Finished difference Result 669 states and 1014 transitions. [2020-12-23 11:02:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:02:17,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-12-23 11:02:17,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:17,199 INFO L225 Difference]: With dead ends: 669 [2020-12-23 11:02:17,199 INFO L226 Difference]: Without dead ends: 539 [2020-12-23 11:02:17,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:17,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-12-23 11:02:17,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 277. [2020-12-23 11:02:17,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-12-23 11:02:17,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 408 transitions. [2020-12-23 11:02:17,262 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 408 transitions. Word has length 39 [2020-12-23 11:02:17,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:17,264 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 408 transitions. [2020-12-23 11:02:17,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:02:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 408 transitions. [2020-12-23 11:02:17,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-23 11:02:17,269 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:17,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:17,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 11:02:17,269 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:17,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:17,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1533207258, now seen corresponding path program 1 times [2020-12-23 11:02:17,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:17,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10597884] [2020-12-23 11:02:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:17,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10597884] [2020-12-23 11:02:17,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:17,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:02:17,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589207158] [2020-12-23 11:02:17,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:02:17,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:17,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:02:17,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:02:17,379 INFO L87 Difference]: Start difference. First operand 277 states and 408 transitions. Second operand 3 states. [2020-12-23 11:02:17,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:17,476 INFO L93 Difference]: Finished difference Result 749 states and 1110 transitions. [2020-12-23 11:02:17,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:02:17,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2020-12-23 11:02:17,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:17,481 INFO L225 Difference]: With dead ends: 749 [2020-12-23 11:02:17,482 INFO L226 Difference]: Without dead ends: 491 [2020-12-23 11:02:17,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:02:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-12-23 11:02:17,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 481. [2020-12-23 11:02:17,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-12-23 11:02:17,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 692 transitions. [2020-12-23 11:02:17,535 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 692 transitions. Word has length 41 [2020-12-23 11:02:17,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:17,537 INFO L481 AbstractCegarLoop]: Abstraction has 481 states and 692 transitions. [2020-12-23 11:02:17,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:02:17,538 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 692 transitions. [2020-12-23 11:02:17,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-23 11:02:17,544 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:17,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:17,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 11:02:17,545 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:17,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:17,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1554209913, now seen corresponding path program 1 times [2020-12-23 11:02:17,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:17,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874588715] [2020-12-23 11:02:17,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:17,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:17,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874588715] [2020-12-23 11:02:17,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:17,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:02:17,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005925962] [2020-12-23 11:02:17,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:02:17,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:17,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:02:17,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:17,769 INFO L87 Difference]: Start difference. First operand 481 states and 692 transitions. Second operand 5 states. [2020-12-23 11:02:17,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:17,970 INFO L93 Difference]: Finished difference Result 1305 states and 1906 transitions. [2020-12-23 11:02:17,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:02:17,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-12-23 11:02:17,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:17,976 INFO L225 Difference]: With dead ends: 1305 [2020-12-23 11:02:17,977 INFO L226 Difference]: Without dead ends: 843 [2020-12-23 11:02:17,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:17,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2020-12-23 11:02:18,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 481. [2020-12-23 11:02:18,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-12-23 11:02:18,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 684 transitions. [2020-12-23 11:02:18,048 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 684 transitions. Word has length 41 [2020-12-23 11:02:18,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:18,049 INFO L481 AbstractCegarLoop]: Abstraction has 481 states and 684 transitions. [2020-12-23 11:02:18,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:02:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 684 transitions. [2020-12-23 11:02:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-23 11:02:18,052 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:18,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:18,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 11:02:18,053 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:18,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:18,054 INFO L82 PathProgramCache]: Analyzing trace with hash 933957624, now seen corresponding path program 1 times [2020-12-23 11:02:18,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:18,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167977394] [2020-12-23 11:02:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:18,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:18,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167977394] [2020-12-23 11:02:18,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:18,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:02:18,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713994712] [2020-12-23 11:02:18,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:02:18,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:18,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:02:18,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:18,202 INFO L87 Difference]: Start difference. First operand 481 states and 684 transitions. Second operand 5 states. [2020-12-23 11:02:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:18,364 INFO L93 Difference]: Finished difference Result 816 states and 1163 transitions. [2020-12-23 11:02:18,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 11:02:18,365 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-12-23 11:02:18,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:18,370 INFO L225 Difference]: With dead ends: 816 [2020-12-23 11:02:18,370 INFO L226 Difference]: Without dead ends: 814 [2020-12-23 11:02:18,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:02:18,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2020-12-23 11:02:18,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 497. [2020-12-23 11:02:18,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-12-23 11:02:18,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 696 transitions. [2020-12-23 11:02:18,445 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 696 transitions. Word has length 42 [2020-12-23 11:02:18,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:18,446 INFO L481 AbstractCegarLoop]: Abstraction has 497 states and 696 transitions. [2020-12-23 11:02:18,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:02:18,446 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 696 transitions. [2020-12-23 11:02:18,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-23 11:02:18,446 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:18,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:18,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 11:02:18,447 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:18,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:18,448 INFO L82 PathProgramCache]: Analyzing trace with hash 883353381, now seen corresponding path program 1 times [2020-12-23 11:02:18,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:18,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152897796] [2020-12-23 11:02:18,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:18,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:18,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152897796] [2020-12-23 11:02:18,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:18,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:02:18,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204465190] [2020-12-23 11:02:18,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:02:18,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:18,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:02:18,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:02:18,484 INFO L87 Difference]: Start difference. First operand 497 states and 696 transitions. Second operand 3 states. [2020-12-23 11:02:18,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:18,599 INFO L93 Difference]: Finished difference Result 968 states and 1382 transitions. [2020-12-23 11:02:18,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:02:18,599 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-12-23 11:02:18,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:18,603 INFO L225 Difference]: With dead ends: 968 [2020-12-23 11:02:18,603 INFO L226 Difference]: Without dead ends: 693 [2020-12-23 11:02:18,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:02:18,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-12-23 11:02:18,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 691. [2020-12-23 11:02:18,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-12-23 11:02:18,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 970 transitions. [2020-12-23 11:02:18,759 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 970 transitions. Word has length 42 [2020-12-23 11:02:18,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:18,759 INFO L481 AbstractCegarLoop]: Abstraction has 691 states and 970 transitions. [2020-12-23 11:02:18,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:02:18,760 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 970 transitions. [2020-12-23 11:02:18,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-23 11:02:18,761 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:18,761 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:18,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 11:02:18,761 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:18,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:18,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1515661308, now seen corresponding path program 1 times [2020-12-23 11:02:18,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:18,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809688819] [2020-12-23 11:02:18,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 11:02:18,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809688819] [2020-12-23 11:02:18,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:18,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:02:18,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938348880] [2020-12-23 11:02:18,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:02:18,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:18,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:02:18,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:18,862 INFO L87 Difference]: Start difference. First operand 691 states and 970 transitions. Second operand 5 states. [2020-12-23 11:02:19,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:19,257 INFO L93 Difference]: Finished difference Result 2835 states and 4000 transitions. [2020-12-23 11:02:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:02:19,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-12-23 11:02:19,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:19,271 INFO L225 Difference]: With dead ends: 2835 [2020-12-23 11:02:19,271 INFO L226 Difference]: Without dead ends: 2165 [2020-12-23 11:02:19,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:19,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2020-12-23 11:02:19,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 1359. [2020-12-23 11:02:19,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2020-12-23 11:02:19,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1906 transitions. [2020-12-23 11:02:19,501 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1906 transitions. Word has length 61 [2020-12-23 11:02:19,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:19,501 INFO L481 AbstractCegarLoop]: Abstraction has 1359 states and 1906 transitions. [2020-12-23 11:02:19,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:02:19,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1906 transitions. [2020-12-23 11:02:19,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-23 11:02:19,502 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:19,503 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:19,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 11:02:19,503 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:19,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:19,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1625359882, now seen corresponding path program 1 times [2020-12-23 11:02:19,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:19,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253582632] [2020-12-23 11:02:19,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:19,602 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-23 11:02:19,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253582632] [2020-12-23 11:02:19,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:19,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:02:19,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968132600] [2020-12-23 11:02:19,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:02:19,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:19,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:02:19,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:19,607 INFO L87 Difference]: Start difference. First operand 1359 states and 1906 transitions. Second operand 5 states. [2020-12-23 11:02:20,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:20,051 INFO L93 Difference]: Finished difference Result 3503 states and 4936 transitions. [2020-12-23 11:02:20,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:02:20,052 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-12-23 11:02:20,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:20,069 INFO L225 Difference]: With dead ends: 3503 [2020-12-23 11:02:20,069 INFO L226 Difference]: Without dead ends: 2833 [2020-12-23 11:02:20,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:20,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2020-12-23 11:02:20,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 2363. [2020-12-23 11:02:20,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2363 states. [2020-12-23 11:02:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3300 transitions. [2020-12-23 11:02:20,431 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3300 transitions. Word has length 61 [2020-12-23 11:02:20,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:20,432 INFO L481 AbstractCegarLoop]: Abstraction has 2363 states and 3300 transitions. [2020-12-23 11:02:20,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:02:20,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3300 transitions. [2020-12-23 11:02:20,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-23 11:02:20,433 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:20,433 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:20,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 11:02:20,434 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:20,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:20,435 INFO L82 PathProgramCache]: Analyzing trace with hash -2114297975, now seen corresponding path program 1 times [2020-12-23 11:02:20,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:20,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613413197] [2020-12-23 11:02:20,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:20,552 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 11:02:20,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613413197] [2020-12-23 11:02:20,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:20,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:02:20,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845264765] [2020-12-23 11:02:20,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:02:20,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:20,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:02:20,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:20,555 INFO L87 Difference]: Start difference. First operand 2363 states and 3300 transitions. Second operand 5 states. [2020-12-23 11:02:21,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:21,080 INFO L93 Difference]: Finished difference Result 3967 states and 5596 transitions. [2020-12-23 11:02:21,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:02:21,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2020-12-23 11:02:21,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:21,099 INFO L225 Difference]: With dead ends: 3967 [2020-12-23 11:02:21,099 INFO L226 Difference]: Without dead ends: 3501 [2020-12-23 11:02:21,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:21,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2020-12-23 11:02:21,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 2827. [2020-12-23 11:02:21,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2827 states. [2020-12-23 11:02:21,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 3964 transitions. [2020-12-23 11:02:21,526 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 3964 transitions. Word has length 62 [2020-12-23 11:02:21,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:21,526 INFO L481 AbstractCegarLoop]: Abstraction has 2827 states and 3964 transitions. [2020-12-23 11:02:21,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:02:21,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 3964 transitions. [2020-12-23 11:02:21,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 11:02:21,528 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:21,529 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:21,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 11:02:21,529 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:21,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:21,530 INFO L82 PathProgramCache]: Analyzing trace with hash -344216809, now seen corresponding path program 1 times [2020-12-23 11:02:21,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:21,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467591061] [2020-12-23 11:02:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:21,575 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:21,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467591061] [2020-12-23 11:02:21,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:21,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:02:21,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216083924] [2020-12-23 11:02:21,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:02:21,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:21,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:02:21,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:02:21,577 INFO L87 Difference]: Start difference. First operand 2827 states and 3964 transitions. Second operand 3 states. [2020-12-23 11:02:21,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:21,907 INFO L93 Difference]: Finished difference Result 4945 states and 6985 transitions. [2020-12-23 11:02:21,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:02:21,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-23 11:02:21,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:21,918 INFO L225 Difference]: With dead ends: 4945 [2020-12-23 11:02:21,918 INFO L226 Difference]: Without dead ends: 2139 [2020-12-23 11:02:21,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:02:21,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2020-12-23 11:02:22,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2137. [2020-12-23 11:02:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2137 states. [2020-12-23 11:02:22,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3004 transitions. [2020-12-23 11:02:22,190 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3004 transitions. Word has length 63 [2020-12-23 11:02:22,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:22,190 INFO L481 AbstractCegarLoop]: Abstraction has 2137 states and 3004 transitions. [2020-12-23 11:02:22,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:02:22,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3004 transitions. [2020-12-23 11:02:22,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 11:02:22,198 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:22,198 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:22,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 11:02:22,198 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:22,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:22,199 INFO L82 PathProgramCache]: Analyzing trace with hash -2058333971, now seen corresponding path program 1 times [2020-12-23 11:02:22,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:22,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862103841] [2020-12-23 11:02:22,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:22,476 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:22,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862103841] [2020-12-23 11:02:22,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847237146] [2020-12-23 11:02:22,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 11:02:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:22,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 11:02:22,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 11:02:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 11:02:22,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 11:02:22,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 12 [2020-12-23 11:02:22,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867819636] [2020-12-23 11:02:22,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 11:02:22,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:22,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 11:02:22,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-12-23 11:02:22,918 INFO L87 Difference]: Start difference. First operand 2137 states and 3004 transitions. Second operand 12 states. [2020-12-23 11:02:28,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:28,172 INFO L93 Difference]: Finished difference Result 15059 states and 20728 transitions. [2020-12-23 11:02:28,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-12-23 11:02:28,173 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2020-12-23 11:02:28,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:28,236 INFO L225 Difference]: With dead ends: 15059 [2020-12-23 11:02:28,236 INFO L226 Difference]: Without dead ends: 12957 [2020-12-23 11:02:28,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1157 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=724, Invalid=2816, Unknown=0, NotChecked=0, Total=3540 [2020-12-23 11:02:28,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12957 states. [2020-12-23 11:02:29,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12957 to 6258. [2020-12-23 11:02:29,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6258 states. [2020-12-23 11:02:29,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6258 states to 6258 states and 8401 transitions. [2020-12-23 11:02:29,236 INFO L78 Accepts]: Start accepts. Automaton has 6258 states and 8401 transitions. Word has length 63 [2020-12-23 11:02:29,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:29,237 INFO L481 AbstractCegarLoop]: Abstraction has 6258 states and 8401 transitions. [2020-12-23 11:02:29,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 11:02:29,237 INFO L276 IsEmpty]: Start isEmpty. Operand 6258 states and 8401 transitions. [2020-12-23 11:02:29,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 11:02:29,238 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:29,239 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:29,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 11:02:29,454 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:29,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:29,456 INFO L82 PathProgramCache]: Analyzing trace with hash 985811417, now seen corresponding path program 1 times [2020-12-23 11:02:29,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:29,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53500946] [2020-12-23 11:02:29,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:29,711 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:29,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53500946] [2020-12-23 11:02:29,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610579980] [2020-12-23 11:02:29,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 11:02:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:29,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-23 11:02:29,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 11:02:30,027 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 11:02:30,321 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:30,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 11:02:30,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-12-23 11:02:30,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506783649] [2020-12-23 11:02:30,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-23 11:02:30,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:30,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-23 11:02:30,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2020-12-23 11:02:30,324 INFO L87 Difference]: Start difference. First operand 6258 states and 8401 transitions. Second operand 17 states. [2020-12-23 11:02:35,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:35,551 INFO L93 Difference]: Finished difference Result 31762 states and 42589 transitions. [2020-12-23 11:02:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 11:02:35,551 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 64 [2020-12-23 11:02:35,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:35,618 INFO L225 Difference]: With dead ends: 31762 [2020-12-23 11:02:35,618 INFO L226 Difference]: Without dead ends: 26707 [2020-12-23 11:02:35,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=386, Invalid=1254, Unknown=0, NotChecked=0, Total=1640 [2020-12-23 11:02:35,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26707 states. [2020-12-23 11:02:38,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26707 to 14128. [2020-12-23 11:02:38,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14128 states. [2020-12-23 11:02:38,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14128 states to 14128 states and 18941 transitions. [2020-12-23 11:02:38,199 INFO L78 Accepts]: Start accepts. Automaton has 14128 states and 18941 transitions. Word has length 64 [2020-12-23 11:02:38,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:38,199 INFO L481 AbstractCegarLoop]: Abstraction has 14128 states and 18941 transitions. [2020-12-23 11:02:38,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-23 11:02:38,199 INFO L276 IsEmpty]: Start isEmpty. Operand 14128 states and 18941 transitions. [2020-12-23 11:02:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 11:02:38,201 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:38,201 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:38,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-23 11:02:38,416 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:38,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:38,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2139757523, now seen corresponding path program 1 times [2020-12-23 11:02:38,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:38,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021225525] [2020-12-23 11:02:38,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:38,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:38,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021225525] [2020-12-23 11:02:38,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128427922] [2020-12-23 11:02:38,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 11:02:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:38,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-23 11:02:38,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 11:02:38,969 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 11:02:39,205 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2020-12-23 11:02:39,623 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:39,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 11:02:39,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12] total 20 [2020-12-23 11:02:39,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381562742] [2020-12-23 11:02:39,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 11:02:39,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:39,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 11:02:39,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-12-23 11:02:39,626 INFO L87 Difference]: Start difference. First operand 14128 states and 18941 transitions. Second operand 20 states. [2020-12-23 11:02:40,221 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-12-23 11:02:40,470 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-23 11:02:41,089 WARN L197 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2020-12-23 11:02:41,337 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-23 11:02:41,854 WARN L197 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-12-23 11:02:42,479 WARN L197 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2020-12-23 11:02:42,895 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-23 11:02:43,556 WARN L197 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2020-12-23 11:02:44,283 WARN L197 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2020-12-23 11:02:44,629 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-12-23 11:02:45,071 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-23 11:02:45,388 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-23 11:02:45,868 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-12-23 11:02:46,484 WARN L197 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2020-12-23 11:02:46,825 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-23 11:02:47,404 WARN L197 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-12-23 11:02:48,131 WARN L197 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 130 [2020-12-23 11:02:48,839 WARN L197 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-12-23 11:02:49,517 WARN L197 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 124 [2020-12-23 11:02:49,847 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-23 11:02:50,199 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 11:02:50,897 WARN L197 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-12-23 11:02:51,207 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-23 11:02:51,488 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-23 11:02:52,198 WARN L197 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2020-12-23 11:02:52,829 WARN L197 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 124 [2020-12-23 11:02:53,490 WARN L197 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 130 [2020-12-23 11:02:54,063 WARN L197 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-12-23 11:02:54,667 WARN L197 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2020-12-23 11:02:55,251 WARN L197 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-12-23 11:02:55,900 WARN L197 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-12-23 11:02:56,440 WARN L197 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2020-12-23 11:02:57,075 WARN L197 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-12-23 11:02:57,803 WARN L197 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2020-12-23 11:02:58,483 WARN L197 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2020-12-23 11:02:59,130 WARN L197 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-12-23 11:02:59,905 WARN L197 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2020-12-23 11:03:00,297 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-23 11:03:00,698 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-23 11:03:01,107 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-23 11:03:01,483 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-23 11:03:02,262 WARN L197 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2020-12-23 11:03:02,654 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 11:03:02,975 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 11:03:03,401 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 11:03:04,234 WARN L197 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-12-23 11:03:04,943 WARN L197 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-12-23 11:03:05,742 WARN L197 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2020-12-23 11:03:06,432 WARN L197 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-12-23 11:03:06,815 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-23 11:03:07,187 WARN L197 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-23 11:03:07,992 WARN L197 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-12-23 11:03:08,804 WARN L197 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2020-12-23 11:03:09,294 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 11:03:09,775 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-23 11:03:10,237 WARN L197 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 11:03:10,620 WARN L197 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-23 11:03:11,470 WARN L197 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-12-23 11:03:12,395 WARN L197 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-12-23 11:03:13,176 WARN L197 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2020-12-23 11:03:14,001 WARN L197 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2020-12-23 11:03:15,060 WARN L197 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 130 [2020-12-23 11:03:15,951 WARN L197 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-12-23 11:03:17,411 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-23 11:03:17,808 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-23 11:03:18,420 WARN L197 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-23 11:03:18,938 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-12-23 11:03:19,760 WARN L197 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-12-23 11:03:20,175 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-23 11:03:20,940 WARN L197 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-12-23 11:03:21,365 WARN L197 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-23 11:03:21,768 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-23 11:03:22,208 WARN L197 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-23 11:03:22,578 WARN L197 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 11:03:23,687 WARN L197 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-12-23 11:03:24,611 WARN L197 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-12-23 11:03:25,489 WARN L197 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2020-12-23 11:03:26,578 WARN L197 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2020-12-23 11:03:27,373 WARN L197 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-12-23 11:03:28,181 WARN L197 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-12-23 11:03:28,654 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 11:03:29,510 WARN L197 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2020-12-23 11:03:29,939 WARN L197 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-23 11:03:30,867 WARN L197 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-12-23 11:03:31,306 WARN L197 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-23 11:03:32,232 WARN L197 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2020-12-23 11:03:32,994 WARN L197 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-12-23 11:03:33,401 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-23 11:03:34,353 WARN L197 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-12-23 11:03:34,768 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-23 11:03:35,859 WARN L197 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2020-12-23 11:03:36,305 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-23 11:03:37,458 WARN L197 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-12-23 11:03:38,517 WARN L197 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-12-23 11:03:39,017 WARN L197 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 11:03:40,041 WARN L197 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2020-12-23 11:03:40,507 WARN L197 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-23 11:03:41,855 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-12-23 11:03:42,417 WARN L197 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-23 11:03:43,098 WARN L197 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-12-23 11:03:44,274 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2020-12-23 11:03:44,907 WARN L197 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-23 11:03:46,077 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-12-23 11:03:46,630 WARN L197 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 11:03:47,425 WARN L197 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2020-12-23 11:03:48,056 WARN L197 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-23 11:03:48,758 WARN L197 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-12-23 11:03:50,030 WARN L197 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2020-12-23 11:03:50,635 WARN L197 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-12-23 11:03:50,999 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-23 11:03:51,701 WARN L197 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-12-23 11:03:52,082 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-12-23 11:03:52,953 WARN L197 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-12-23 11:03:53,325 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-12-23 11:03:54,500 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-12-23 11:03:55,179 WARN L197 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-12-23 11:03:56,542 WARN L197 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-12-23 11:03:56,934 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-23 11:03:57,334 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-12-23 11:03:58,745 WARN L197 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2020-12-23 11:04:00,657 WARN L197 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:04:02,185 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-12-23 11:04:03,314 WARN L197 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-12-23 11:04:04,961 WARN L197 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2020-12-23 11:04:06,641 WARN L197 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2020-12-23 11:04:08,453 WARN L197 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-12-23 11:04:09,385 WARN L197 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-12-23 11:04:11,288 WARN L197 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-12-23 11:04:11,885 WARN L197 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 11:04:13,156 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 11:04:15,369 WARN L197 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-12-23 11:04:15,960 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-23 11:04:17,129 WARN L197 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 11:04:19,588 WARN L197 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-12-23 11:04:21,482 WARN L197 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-12-23 11:04:23,775 WARN L197 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-12-23 11:04:24,850 WARN L197 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 11:04:27,351 WARN L197 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2020-12-23 11:04:28,647 WARN L197 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-12-23 11:04:31,224 WARN L197 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2020-12-23 11:04:32,421 WARN L197 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 116 [2020-12-23 11:04:33,799 WARN L197 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-23 11:04:35,206 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 124 [2020-12-23 11:04:36,765 WARN L197 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 11:04:37,392 WARN L197 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-23 11:04:38,702 WARN L197 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 119 [2020-12-23 11:04:39,731 WARN L197 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-23 11:04:40,925 WARN L197 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-23 11:04:42,268 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 127 [2020-12-23 11:04:44,626 WARN L197 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 132 DAG size of output: 124 [2020-12-23 11:04:45,734 WARN L197 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 11:04:47,041 WARN L197 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 11:04:48,187 WARN L197 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-23 11:04:49,622 WARN L197 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 124 [2020-12-23 11:04:50,708 WARN L197 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 11:04:51,801 WARN L197 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-23 11:04:52,427 WARN L197 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-23 11:04:53,349 WARN L197 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-23 11:04:54,611 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 119 [2020-12-23 11:04:55,525 WARN L197 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-12-23 11:04:56,546 WARN L197 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-23 11:04:58,941 WARN L197 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 141 DAG size of output: 133 [2020-12-23 11:05:00,228 WARN L197 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 115 [2020-12-23 11:05:02,435 WARN L197 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-12-23 11:05:03,293 WARN L197 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-12-23 11:05:04,530 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-12-23 11:05:05,563 WARN L197 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-23 11:05:07,226 WARN L197 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 122 [2020-12-23 11:05:10,153 WARN L197 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-12-23 11:05:11,637 WARN L197 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 118 [2020-12-23 11:05:12,991 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 11:05:14,355 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-12-23 11:05:15,724 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 11:05:18,459 WARN L197 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2020-12-23 11:05:19,155 WARN L197 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 11:05:20,184 WARN L197 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-23 11:05:21,596 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 113 [2020-12-23 11:05:23,767 WARN L197 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2020-12-23 11:05:25,852 WARN L197 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-12-23 11:05:27,006 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-12-23 11:05:28,089 WARN L197 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 11:05:30,079 WARN L197 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-12-23 11:05:32,287 WARN L197 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-12-23 11:05:34,637 WARN L197 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 136 DAG size of output: 128 [2020-12-23 11:05:37,052 WARN L197 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-12-23 11:05:38,626 WARN L197 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 11:05:40,826 WARN L197 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-12-23 11:05:42,727 WARN L197 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-12-23 11:05:44,795 WARN L197 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-12-23 11:05:46,618 WARN L197 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-12-23 11:05:47,723 WARN L197 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-12-23 11:05:49,947 WARN L197 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-12-23 11:05:52,041 WARN L197 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2020-12-23 11:05:54,287 WARN L197 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-12-23 11:05:56,760 WARN L197 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2020-12-23 11:05:59,029 WARN L197 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-12-23 11:06:01,876 WARN L197 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-12-23 11:06:03,985 WARN L197 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-12-23 11:06:06,270 WARN L197 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-12-23 11:06:08,464 WARN L197 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2020-12-23 11:06:09,613 WARN L197 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-12-23 11:06:10,575 WARN L197 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-23 11:06:11,849 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-12-23 11:06:13,280 WARN L197 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-12-23 11:06:14,484 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-12-23 11:06:15,868 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 104 [2020-12-23 11:06:18,443 WARN L197 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-12-23 11:06:21,177 WARN L197 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 136 DAG size of output: 128 [2020-12-23 11:06:23,744 WARN L197 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-12-23 11:06:26,483 WARN L197 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-12-23 11:06:27,885 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 110 [2020-12-23 11:06:29,171 WARN L197 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-23 11:06:30,196 WARN L197 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-12-23 11:06:31,254 WARN L197 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-23 11:06:32,406 WARN L197 SmtUtils]: Spent 943.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-23 11:06:35,098 WARN L197 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-12-23 11:06:36,790 WARN L197 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 97 DAG size of output: 89