/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.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 11:18:36,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 11:18:36,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 11:18:36,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 11:18:36,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 11:18:36,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 11:18:36,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 11:18:36,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 11:18:36,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 11:18:36,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 11:18:36,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 11:18:36,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 11:18:36,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 11:18:36,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 11:18:36,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 11:18:36,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 11:18:36,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 11:18:36,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 11:18:36,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 11:18:36,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 11:18:36,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 11:18:36,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 11:18:36,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 11:18:36,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 11:18:36,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 11:18:36,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 11:18:36,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 11:18:36,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 11:18:36,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 11:18:36,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 11:18:36,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 11:18:36,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 11:18:36,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 11:18:36,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 11:18:36,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 11:18:36,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 11:18:36,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 11:18:36,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 11:18:36,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 11:18:36,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 11:18:36,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 11:18:36,518 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 11:18:36,546 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 11:18:36,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 11:18:36,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 11:18:36,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 11:18:36,549 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 11:18:36,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 11:18:36,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 11:18:36,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 11:18:36,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 11:18:36,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 11:18:36,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 11:18:36,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 11:18:36,551 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 11:18:36,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 11:18:36,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 11:18:36,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 11:18:36,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 11:18:36,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:18:36,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 11:18:36,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 11:18:36,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 11:18:36,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 11:18:36,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 11:18:36,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 11:18:36,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 11:18:36,554 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 11:18:36,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 11:18:36,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 11:18:36,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 11:18:36,989 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 11:18:36,990 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 11:18:36,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 11:18:37,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/67d61de08/d35ddeee98024f81bf90ae8ac0e0c340/FLAGf93b92550 [2020-12-23 11:18:37,938 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 11:18:37,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 11:18:37,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/67d61de08/d35ddeee98024f81bf90ae8ac0e0c340/FLAGf93b92550 [2020-12-23 11:18:38,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/67d61de08/d35ddeee98024f81bf90ae8ac0e0c340 [2020-12-23 11:18:38,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 11:18:38,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 11:18:38,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 11:18:38,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 11:18:38,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 11:18:38,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:18:38" (1/1) ... [2020-12-23 11:18:38,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f51280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38, skipping insertion in model container [2020-12-23 11:18:38,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:18:38" (1/1) ... [2020-12-23 11:18:38,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 11:18:38,342 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[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_13172~0,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[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_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[~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[~node2__m2~0,] 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[~node3__m3~0,] 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[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,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[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_13299~0,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,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p6_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__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] 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__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] 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[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,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[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_13521~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2020-12-23 11:18:38,640 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.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8688,8701] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] 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__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p6_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__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] 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__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] 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[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 11:18:38,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:18:38,730 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[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_13172~0,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[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_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[~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[~node2__m2~0,] 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[~node3__m3~0,] 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[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,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[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_13299~0,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,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p6_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__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] 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__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] 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[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,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[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_13521~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2020-12-23 11:18:38,860 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.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8688,8701] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] 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__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p6_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__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] 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__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] 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[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 11:18:38,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:18:38,936 INFO L208 MainTranslator]: Completed translation [2020-12-23 11:18:38,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38 WrapperNode [2020-12-23 11:18:38,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 11:18:38,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 11:18:38,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 11:18:38,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 11:18:38,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38" (1/1) ... [2020-12-23 11:18:38,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38" (1/1) ... [2020-12-23 11:18:39,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 11:18:39,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 11:18:39,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 11:18:39,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 11:18:39,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38" (1/1) ... [2020-12-23 11:18:39,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38" (1/1) ... [2020-12-23 11:18:39,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38" (1/1) ... [2020-12-23 11:18:39,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38" (1/1) ... [2020-12-23 11:18:39,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38" (1/1) ... [2020-12-23 11:18:39,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38" (1/1) ... [2020-12-23 11:18:39,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38" (1/1) ... [2020-12-23 11:18:39,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 11:18:39,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 11:18:39,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 11:18:39,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 11:18:39,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38" (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 11:18:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 11:18:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 11:18:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 11:18:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 11:18:40,377 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 11:18:40,378 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 11:18:40,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:18:40 BoogieIcfgContainer [2020-12-23 11:18:40,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 11:18:40,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 11:18:40,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 11:18:40,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 11:18:40,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:18:38" (1/3) ... [2020-12-23 11:18:40,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6290fd1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:18:40, skipping insertion in model container [2020-12-23 11:18:40,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:18:38" (2/3) ... [2020-12-23 11:18:40,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6290fd1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:18:40, skipping insertion in model container [2020-12-23 11:18:40,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:18:40" (3/3) ... [2020-12-23 11:18:40,390 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 11:18:40,396 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 11:18:40,400 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 11:18:40,415 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 11:18:40,443 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 11:18:40,443 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 11:18:40,443 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 11:18:40,443 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 11:18:40,443 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 11:18:40,443 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 11:18:40,444 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 11:18:40,444 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 11:18:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2020-12-23 11:18:40,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-23 11:18:40,476 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:40,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:40,478 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:40,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:40,484 INFO L82 PathProgramCache]: Analyzing trace with hash -822713823, now seen corresponding path program 1 times [2020-12-23 11:18:40,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:40,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487532679] [2020-12-23 11:18:40,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:40,989 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 11:18:40,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487532679] [2020-12-23 11:18:40,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:40,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:18:40,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331455438] [2020-12-23 11:18:40,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:18:40,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:41,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:18:41,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:18:41,016 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 3 states. [2020-12-23 11:18:41,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:41,219 INFO L93 Difference]: Finished difference Result 347 states and 578 transitions. [2020-12-23 11:18:41,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:18:41,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-23 11:18:41,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:41,238 INFO L225 Difference]: With dead ends: 347 [2020-12-23 11:18:41,238 INFO L226 Difference]: Without dead ends: 267 [2020-12-23 11:18:41,243 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 11:18:41,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-12-23 11:18:41,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 265. [2020-12-23 11:18:41,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-12-23 11:18:41,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 384 transitions. [2020-12-23 11:18:41,353 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 384 transitions. Word has length 90 [2020-12-23 11:18:41,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:41,354 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 384 transitions. [2020-12-23 11:18:41,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:18:41,354 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 384 transitions. [2020-12-23 11:18:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-23 11:18:41,358 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:41,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:41,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 11:18:41,359 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:41,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:41,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1483332975, now seen corresponding path program 1 times [2020-12-23 11:18:41,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:41,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589000601] [2020-12-23 11:18:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:41,581 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 11:18:41,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589000601] [2020-12-23 11:18:41,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:41,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:18:41,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056308349] [2020-12-23 11:18:41,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:18:41,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:41,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:18:41,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:18:41,585 INFO L87 Difference]: Start difference. First operand 265 states and 384 transitions. Second operand 5 states. [2020-12-23 11:18:41,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:41,852 INFO L93 Difference]: Finished difference Result 464 states and 696 transitions. [2020-12-23 11:18:41,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:18:41,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2020-12-23 11:18:41,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:41,856 INFO L225 Difference]: With dead ends: 464 [2020-12-23 11:18:41,856 INFO L226 Difference]: Without dead ends: 265 [2020-12-23 11:18:41,858 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 11:18:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-12-23 11:18:41,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2020-12-23 11:18:41,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-12-23 11:18:41,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 381 transitions. [2020-12-23 11:18:41,885 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 381 transitions. Word has length 92 [2020-12-23 11:18:41,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:41,886 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 381 transitions. [2020-12-23 11:18:41,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:18:41,886 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 381 transitions. [2020-12-23 11:18:41,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-23 11:18:41,890 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:41,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:41,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 11:18:41,890 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:41,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:41,891 INFO L82 PathProgramCache]: Analyzing trace with hash -679996500, now seen corresponding path program 1 times [2020-12-23 11:18:41,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:41,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532540551] [2020-12-23 11:18:41,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:42,176 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 11:18:42,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532540551] [2020-12-23 11:18:42,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:42,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:18:42,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479903798] [2020-12-23 11:18:42,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:18:42,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:42,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:18:42,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:18:42,186 INFO L87 Difference]: Start difference. First operand 265 states and 381 transitions. Second operand 6 states. [2020-12-23 11:18:42,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:42,615 INFO L93 Difference]: Finished difference Result 665 states and 999 transitions. [2020-12-23 11:18:42,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:18:42,616 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-12-23 11:18:42,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:42,620 INFO L225 Difference]: With dead ends: 665 [2020-12-23 11:18:42,620 INFO L226 Difference]: Without dead ends: 446 [2020-12-23 11:18:42,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:18:42,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-12-23 11:18:42,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 444. [2020-12-23 11:18:42,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-12-23 11:18:42,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 661 transitions. [2020-12-23 11:18:42,698 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 661 transitions. Word has length 93 [2020-12-23 11:18:42,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:42,704 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 661 transitions. [2020-12-23 11:18:42,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:18:42,705 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 661 transitions. [2020-12-23 11:18:42,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-23 11:18:42,713 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:42,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:42,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 11:18:42,713 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:42,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:42,716 INFO L82 PathProgramCache]: Analyzing trace with hash 220884227, now seen corresponding path program 1 times [2020-12-23 11:18:42,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:42,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557153780] [2020-12-23 11:18:42,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:42,877 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 11:18:42,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557153780] [2020-12-23 11:18:42,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:42,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:18:42,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487449456] [2020-12-23 11:18:42,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:18:42,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:42,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:18:42,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:18:42,885 INFO L87 Difference]: Start difference. First operand 444 states and 661 transitions. Second operand 6 states. [2020-12-23 11:18:43,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:43,172 INFO L93 Difference]: Finished difference Result 1114 states and 1705 transitions. [2020-12-23 11:18:43,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:18:43,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2020-12-23 11:18:43,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:43,178 INFO L225 Difference]: With dead ends: 1114 [2020-12-23 11:18:43,178 INFO L226 Difference]: Without dead ends: 732 [2020-12-23 11:18:43,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:18:43,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2020-12-23 11:18:43,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 730. [2020-12-23 11:18:43,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2020-12-23 11:18:43,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1104 transitions. [2020-12-23 11:18:43,234 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1104 transitions. Word has length 94 [2020-12-23 11:18:43,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:43,234 INFO L481 AbstractCegarLoop]: Abstraction has 730 states and 1104 transitions. [2020-12-23 11:18:43,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:18:43,235 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1104 transitions. [2020-12-23 11:18:43,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-23 11:18:43,237 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:43,237 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:43,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 11:18:43,237 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:43,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:43,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1812854412, now seen corresponding path program 1 times [2020-12-23 11:18:43,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:43,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048001827] [2020-12-23 11:18:43,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:43,387 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 11:18:43,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048001827] [2020-12-23 11:18:43,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:43,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:18:43,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302511481] [2020-12-23 11:18:43,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:18:43,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:43,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:18:43,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:18:43,392 INFO L87 Difference]: Start difference. First operand 730 states and 1104 transitions. Second operand 6 states. [2020-12-23 11:18:43,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:43,813 INFO L93 Difference]: Finished difference Result 1992 states and 3064 transitions. [2020-12-23 11:18:43,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:18:43,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2020-12-23 11:18:43,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:43,821 INFO L225 Difference]: With dead ends: 1992 [2020-12-23 11:18:43,821 INFO L226 Difference]: Without dead ends: 1320 [2020-12-23 11:18:43,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:18:43,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2020-12-23 11:18:43,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1318. [2020-12-23 11:18:43,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1318 states. [2020-12-23 11:18:43,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 2011 transitions. [2020-12-23 11:18:43,922 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 2011 transitions. Word has length 95 [2020-12-23 11:18:43,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:43,922 INFO L481 AbstractCegarLoop]: Abstraction has 1318 states and 2011 transitions. [2020-12-23 11:18:43,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:18:43,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 2011 transitions. [2020-12-23 11:18:43,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 11:18:43,925 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:43,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:43,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 11:18:43,925 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:43,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:43,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1555751831, now seen corresponding path program 1 times [2020-12-23 11:18:43,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:43,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409642781] [2020-12-23 11:18:43,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:44,025 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 11:18:44,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409642781] [2020-12-23 11:18:44,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:44,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:18:44,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024827458] [2020-12-23 11:18:44,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:18:44,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:44,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:18:44,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:18:44,027 INFO L87 Difference]: Start difference. First operand 1318 states and 2011 transitions. Second operand 5 states. [2020-12-23 11:18:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:44,375 INFO L93 Difference]: Finished difference Result 2582 states and 3966 transitions. [2020-12-23 11:18:44,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:18:44,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-12-23 11:18:44,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:44,383 INFO L225 Difference]: With dead ends: 2582 [2020-12-23 11:18:44,383 INFO L226 Difference]: Without dead ends: 1318 [2020-12-23 11:18:44,385 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 11:18:44,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2020-12-23 11:18:44,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1318. [2020-12-23 11:18:44,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1318 states. [2020-12-23 11:18:44,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1994 transitions. [2020-12-23 11:18:44,535 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1994 transitions. Word has length 96 [2020-12-23 11:18:44,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:44,536 INFO L481 AbstractCegarLoop]: Abstraction has 1318 states and 1994 transitions. [2020-12-23 11:18:44,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:18:44,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1994 transitions. [2020-12-23 11:18:44,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-23 11:18:44,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:44,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:44,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 11:18:44,538 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:44,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:44,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1288381152, now seen corresponding path program 1 times [2020-12-23 11:18:44,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:44,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264323041] [2020-12-23 11:18:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:44,661 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 11:18:44,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264323041] [2020-12-23 11:18:44,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:44,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:18:44,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951877225] [2020-12-23 11:18:44,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:18:44,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:44,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:18:44,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:18:44,667 INFO L87 Difference]: Start difference. First operand 1318 states and 1994 transitions. Second operand 5 states. [2020-12-23 11:18:44,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:44,982 INFO L93 Difference]: Finished difference Result 2586 states and 3937 transitions. [2020-12-23 11:18:44,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:18:44,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2020-12-23 11:18:44,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:44,991 INFO L225 Difference]: With dead ends: 2586 [2020-12-23 11:18:44,991 INFO L226 Difference]: Without dead ends: 1318 [2020-12-23 11:18:44,993 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 11:18:44,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2020-12-23 11:18:45,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1318. [2020-12-23 11:18:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1318 states. [2020-12-23 11:18:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1977 transitions. [2020-12-23 11:18:45,121 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1977 transitions. Word has length 97 [2020-12-23 11:18:45,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:45,121 INFO L481 AbstractCegarLoop]: Abstraction has 1318 states and 1977 transitions. [2020-12-23 11:18:45,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:18:45,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1977 transitions. [2020-12-23 11:18:45,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-23 11:18:45,127 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:45,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:45,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 11:18:45,128 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:45,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:45,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1831345451, now seen corresponding path program 1 times [2020-12-23 11:18:45,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:45,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644177984] [2020-12-23 11:18:45,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:45,420 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 11:18:45,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644177984] [2020-12-23 11:18:45,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:45,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:18:45,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058243535] [2020-12-23 11:18:45,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 11:18:45,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:45,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 11:18:45,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:18:45,422 INFO L87 Difference]: Start difference. First operand 1318 states and 1977 transitions. Second operand 8 states. [2020-12-23 11:18:46,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:46,526 INFO L93 Difference]: Finished difference Result 8176 states and 12428 transitions. [2020-12-23 11:18:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 11:18:46,527 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-12-23 11:18:46,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:46,563 INFO L225 Difference]: With dead ends: 8176 [2020-12-23 11:18:46,563 INFO L226 Difference]: Without dead ends: 7126 [2020-12-23 11:18:46,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-12-23 11:18:46,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7126 states. [2020-12-23 11:18:46,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7126 to 1853. [2020-12-23 11:18:46,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1853 states. [2020-12-23 11:18:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2797 transitions. [2020-12-23 11:18:46,868 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2797 transitions. Word has length 98 [2020-12-23 11:18:46,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:46,868 INFO L481 AbstractCegarLoop]: Abstraction has 1853 states and 2797 transitions. [2020-12-23 11:18:46,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 11:18:46,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2797 transitions. [2020-12-23 11:18:46,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-23 11:18:46,870 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:46,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:46,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 11:18:46,871 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:46,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:46,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1269789971, now seen corresponding path program 1 times [2020-12-23 11:18:46,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:46,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134347621] [2020-12-23 11:18:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:47,063 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 11:18:47,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134347621] [2020-12-23 11:18:47,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:47,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:18:47,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343828120] [2020-12-23 11:18:47,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 11:18:47,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:47,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 11:18:47,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:18:47,066 INFO L87 Difference]: Start difference. First operand 1853 states and 2797 transitions. Second operand 8 states. [2020-12-23 11:18:48,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:48,392 INFO L93 Difference]: Finished difference Result 8562 states and 13024 transitions. [2020-12-23 11:18:48,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 11:18:48,392 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-12-23 11:18:48,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:48,431 INFO L225 Difference]: With dead ends: 8562 [2020-12-23 11:18:48,432 INFO L226 Difference]: Without dead ends: 7512 [2020-12-23 11:18:48,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-12-23 11:18:48,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7512 states. [2020-12-23 11:18:48,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7512 to 3045. [2020-12-23 11:18:48,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3045 states. [2020-12-23 11:18:48,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 4625 transitions. [2020-12-23 11:18:48,937 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 4625 transitions. Word has length 98 [2020-12-23 11:18:48,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:48,937 INFO L481 AbstractCegarLoop]: Abstraction has 3045 states and 4625 transitions. [2020-12-23 11:18:48,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 11:18:48,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 4625 transitions. [2020-12-23 11:18:48,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-23 11:18:48,940 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:48,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:48,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 11:18:48,940 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:48,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:48,941 INFO L82 PathProgramCache]: Analyzing trace with hash -2040892797, now seen corresponding path program 1 times [2020-12-23 11:18:48,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:48,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90587399] [2020-12-23 11:18:48,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:49,096 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 11:18:49,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90587399] [2020-12-23 11:18:49,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:49,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:18:49,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228141986] [2020-12-23 11:18:49,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 11:18:49,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:49,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 11:18:49,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:18:49,099 INFO L87 Difference]: Start difference. First operand 3045 states and 4625 transitions. Second operand 8 states. [2020-12-23 11:18:50,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:50,479 INFO L93 Difference]: Finished difference Result 9026 states and 13736 transitions. [2020-12-23 11:18:50,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 11:18:50,481 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-12-23 11:18:50,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:50,550 INFO L225 Difference]: With dead ends: 9026 [2020-12-23 11:18:50,550 INFO L226 Difference]: Without dead ends: 7976 [2020-12-23 11:18:50,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-12-23 11:18:50,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2020-12-23 11:18:51,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 3593. [2020-12-23 11:18:51,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3593 states. [2020-12-23 11:18:51,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 5461 transitions. [2020-12-23 11:18:51,179 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 5461 transitions. Word has length 98 [2020-12-23 11:18:51,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:51,179 INFO L481 AbstractCegarLoop]: Abstraction has 3593 states and 5461 transitions. [2020-12-23 11:18:51,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 11:18:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 5461 transitions. [2020-12-23 11:18:51,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-23 11:18:51,182 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:51,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:51,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 11:18:51,182 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:51,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:51,183 INFO L82 PathProgramCache]: Analyzing trace with hash 962907459, now seen corresponding path program 1 times [2020-12-23 11:18:51,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:51,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352500800] [2020-12-23 11:18:51,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:51,256 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 11:18:51,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352500800] [2020-12-23 11:18:51,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:51,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:18:51,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963661735] [2020-12-23 11:18:51,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:18:51,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:51,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:18:51,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:18:51,263 INFO L87 Difference]: Start difference. First operand 3593 states and 5461 transitions. Second operand 3 states. [2020-12-23 11:18:52,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:52,244 INFO L93 Difference]: Finished difference Result 9741 states and 14791 transitions. [2020-12-23 11:18:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:18:52,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-12-23 11:18:52,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:52,261 INFO L225 Difference]: With dead ends: 9741 [2020-12-23 11:18:52,261 INFO L226 Difference]: Without dead ends: 6531 [2020-12-23 11:18:52,267 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 11:18:52,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6531 states. [2020-12-23 11:18:53,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6531 to 6433. [2020-12-23 11:18:53,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6433 states. [2020-12-23 11:18:53,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6433 states to 6433 states and 9653 transitions. [2020-12-23 11:18:53,331 INFO L78 Accepts]: Start accepts. Automaton has 6433 states and 9653 transitions. Word has length 98 [2020-12-23 11:18:53,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:53,331 INFO L481 AbstractCegarLoop]: Abstraction has 6433 states and 9653 transitions. [2020-12-23 11:18:53,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:18:53,331 INFO L276 IsEmpty]: Start isEmpty. Operand 6433 states and 9653 transitions. [2020-12-23 11:18:53,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-23 11:18:53,333 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:53,334 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:53,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 11:18:53,334 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:53,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:53,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1206985122, now seen corresponding path program 1 times [2020-12-23 11:18:53,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:53,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379314463] [2020-12-23 11:18:53,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:53,420 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 11:18:53,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379314463] [2020-12-23 11:18:53,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:53,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:18:53,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709337122] [2020-12-23 11:18:53,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:18:53,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:53,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:18:53,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:18:53,423 INFO L87 Difference]: Start difference. First operand 6433 states and 9653 transitions. Second operand 3 states. [2020-12-23 11:18:54,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:54,685 INFO L93 Difference]: Finished difference Result 16517 states and 24807 transitions. [2020-12-23 11:18:54,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:18:54,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-12-23 11:18:54,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:54,708 INFO L225 Difference]: With dead ends: 16517 [2020-12-23 11:18:54,709 INFO L226 Difference]: Without dead ends: 10467 [2020-12-23 11:18:54,718 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 11:18:54,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2020-12-23 11:18:55,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 10465. [2020-12-23 11:18:55,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10465 states. [2020-12-23 11:18:55,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10465 states to 10465 states and 15621 transitions. [2020-12-23 11:18:55,913 INFO L78 Accepts]: Start accepts. Automaton has 10465 states and 15621 transitions. Word has length 98 [2020-12-23 11:18:55,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:18:55,913 INFO L481 AbstractCegarLoop]: Abstraction has 10465 states and 15621 transitions. [2020-12-23 11:18:55,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:18:55,913 INFO L276 IsEmpty]: Start isEmpty. Operand 10465 states and 15621 transitions. [2020-12-23 11:18:55,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-23 11:18:55,916 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:18:55,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:55,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 11:18:55,916 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:18:55,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:18:55,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1451030825, now seen corresponding path program 1 times [2020-12-23 11:18:55,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:18:55,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323652549] [2020-12-23 11:18:55,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:18:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:18:56,083 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 11:18:56,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323652549] [2020-12-23 11:18:56,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:18:56,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:18:56,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519929914] [2020-12-23 11:18:56,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 11:18:56,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:18:56,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 11:18:56,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:18:56,086 INFO L87 Difference]: Start difference. First operand 10465 states and 15621 transitions. Second operand 8 states. [2020-12-23 11:18:59,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:18:59,645 INFO L93 Difference]: Finished difference Result 27994 states and 41886 transitions. [2020-12-23 11:18:59,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 11:18:59,645 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-12-23 11:18:59,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:18:59,764 INFO L225 Difference]: With dead ends: 27994 [2020-12-23 11:18:59,765 INFO L226 Difference]: Without dead ends: 25000 [2020-12-23 11:18:59,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-12-23 11:18:59,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25000 states. [2020-12-23 11:19:01,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25000 to 12523. [2020-12-23 11:19:01,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12523 states. [2020-12-23 11:19:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12523 states to 12523 states and 18697 transitions. [2020-12-23 11:19:01,371 INFO L78 Accepts]: Start accepts. Automaton has 12523 states and 18697 transitions. Word has length 98 [2020-12-23 11:19:01,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:19:01,372 INFO L481 AbstractCegarLoop]: Abstraction has 12523 states and 18697 transitions. [2020-12-23 11:19:01,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 11:19:01,372 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states and 18697 transitions. [2020-12-23 11:19:01,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-23 11:19:01,374 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:19:01,374 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:01,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 11:19:01,375 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:19:01,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:19:01,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1964085863, now seen corresponding path program 1 times [2020-12-23 11:19:01,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:19:01,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357196748] [2020-12-23 11:19:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:19:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:19:01,550 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 11:19:01,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357196748] [2020-12-23 11:19:01,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:19:01,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:19:01,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898819367] [2020-12-23 11:19:01,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 11:19:01,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:19:01,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 11:19:01,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:19:01,552 INFO L87 Difference]: Start difference. First operand 12523 states and 18697 transitions. Second operand 8 states. [2020-12-23 11:19:05,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:19:05,466 INFO L93 Difference]: Finished difference Result 30216 states and 45212 transitions. [2020-12-23 11:19:05,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 11:19:05,466 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-12-23 11:19:05,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:19:05,512 INFO L225 Difference]: With dead ends: 30216 [2020-12-23 11:19:05,512 INFO L226 Difference]: Without dead ends: 27222 [2020-12-23 11:19:05,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-12-23 11:19:05,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27222 states. [2020-12-23 11:19:07,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27222 to 14625. [2020-12-23 11:19:07,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14625 states. [2020-12-23 11:19:07,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14625 states to 14625 states and 21841 transitions. [2020-12-23 11:19:07,736 INFO L78 Accepts]: Start accepts. Automaton has 14625 states and 21841 transitions. Word has length 98 [2020-12-23 11:19:07,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:19:07,737 INFO L481 AbstractCegarLoop]: Abstraction has 14625 states and 21841 transitions. [2020-12-23 11:19:07,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 11:19:07,737 INFO L276 IsEmpty]: Start isEmpty. Operand 14625 states and 21841 transitions. [2020-12-23 11:19:07,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-23 11:19:07,740 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:19:07,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:07,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 11:19:07,741 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:19:07,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:19:07,741 INFO L82 PathProgramCache]: Analyzing trace with hash -472584635, now seen corresponding path program 1 times [2020-12-23 11:19:07,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:19:07,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124763114] [2020-12-23 11:19:07,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:19:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:19:07,904 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 11:19:07,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124763114] [2020-12-23 11:19:07,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:19:07,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:19:07,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021555486] [2020-12-23 11:19:07,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 11:19:07,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:19:07,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 11:19:07,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:19:07,907 INFO L87 Difference]: Start difference. First operand 14625 states and 21841 transitions. Second operand 8 states. [2020-12-23 11:19:11,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:19:11,999 INFO L93 Difference]: Finished difference Result 32188 states and 48160 transitions. [2020-12-23 11:19:11,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 11:19:11,999 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-12-23 11:19:12,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:19:12,044 INFO L225 Difference]: With dead ends: 32188 [2020-12-23 11:19:12,044 INFO L226 Difference]: Without dead ends: 29194 [2020-12-23 11:19:12,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-12-23 11:19:12,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29194 states. [2020-12-23 11:19:14,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29194 to 16693. [2020-12-23 11:19:14,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16693 states. [2020-12-23 11:19:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16693 states to 16693 states and 24933 transitions. [2020-12-23 11:19:14,716 INFO L78 Accepts]: Start accepts. Automaton has 16693 states and 24933 transitions. Word has length 98 [2020-12-23 11:19:14,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:19:14,716 INFO L481 AbstractCegarLoop]: Abstraction has 16693 states and 24933 transitions. [2020-12-23 11:19:14,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 11:19:14,717 INFO L276 IsEmpty]: Start isEmpty. Operand 16693 states and 24933 transitions. [2020-12-23 11:19:14,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-23 11:19:14,720 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:19:14,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:14,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 11:19:14,721 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:19:14,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:19:14,722 INFO L82 PathProgramCache]: Analyzing trace with hash 19008367, now seen corresponding path program 1 times [2020-12-23 11:19:14,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:19:14,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542779087] [2020-12-23 11:19:14,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:19:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:19:15,082 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 11:19:15,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542779087] [2020-12-23 11:19:15,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:19:15,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:19:15,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163277562] [2020-12-23 11:19:15,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:19:15,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:19:15,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:19:15,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:19:15,085 INFO L87 Difference]: Start difference. First operand 16693 states and 24933 transitions. Second operand 10 states. [2020-12-23 11:19:19,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:19:19,947 INFO L93 Difference]: Finished difference Result 41289 states and 61515 transitions. [2020-12-23 11:19:19,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 11:19:19,948 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 99 [2020-12-23 11:19:19,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:19:19,977 INFO L225 Difference]: With dead ends: 41289 [2020-12-23 11:19:19,977 INFO L226 Difference]: Without dead ends: 25091 [2020-12-23 11:19:20,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:19:20,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25091 states. [2020-12-23 11:19:22,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25091 to 16693. [2020-12-23 11:19:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16693 states. [2020-12-23 11:19:22,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16693 states to 16693 states and 24889 transitions. [2020-12-23 11:19:22,617 INFO L78 Accepts]: Start accepts. Automaton has 16693 states and 24889 transitions. Word has length 99 [2020-12-23 11:19:22,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:19:22,617 INFO L481 AbstractCegarLoop]: Abstraction has 16693 states and 24889 transitions. [2020-12-23 11:19:22,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:19:22,617 INFO L276 IsEmpty]: Start isEmpty. Operand 16693 states and 24889 transitions. [2020-12-23 11:19:22,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-23 11:19:22,620 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:19:22,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:22,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 11:19:22,621 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:19:22,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:19:22,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1246450513, now seen corresponding path program 1 times [2020-12-23 11:19:22,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:19:22,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646108251] [2020-12-23 11:19:22,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:19:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:19:22,968 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 11:19:22,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646108251] [2020-12-23 11:19:22,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:19:22,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:19:22,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736252882] [2020-12-23 11:19:22,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:19:22,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:19:22,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:19:22,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:19:22,970 INFO L87 Difference]: Start difference. First operand 16693 states and 24889 transitions. Second operand 9 states. [2020-12-23 11:19:28,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:19:28,844 INFO L93 Difference]: Finished difference Result 49249 states and 73515 transitions. [2020-12-23 11:19:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 11:19:28,845 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 100 [2020-12-23 11:19:28,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:19:28,882 INFO L225 Difference]: With dead ends: 49249 [2020-12-23 11:19:28,882 INFO L226 Difference]: Without dead ends: 32891 [2020-12-23 11:19:28,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-12-23 11:19:28,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32891 states. [2020-12-23 11:19:31,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32891 to 16693. [2020-12-23 11:19:31,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16693 states. [2020-12-23 11:19:31,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16693 states to 16693 states and 24888 transitions. [2020-12-23 11:19:31,864 INFO L78 Accepts]: Start accepts. Automaton has 16693 states and 24888 transitions. Word has length 100 [2020-12-23 11:19:31,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:19:31,864 INFO L481 AbstractCegarLoop]: Abstraction has 16693 states and 24888 transitions. [2020-12-23 11:19:31,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:19:31,864 INFO L276 IsEmpty]: Start isEmpty. Operand 16693 states and 24888 transitions. [2020-12-23 11:19:31,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-23 11:19:31,867 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:19:31,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:31,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 11:19:31,867 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:19:31,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:19:31,868 INFO L82 PathProgramCache]: Analyzing trace with hash -922204693, now seen corresponding path program 1 times [2020-12-23 11:19:31,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:19:31,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230263373] [2020-12-23 11:19:31,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:19:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:19:32,114 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 11:19:32,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230263373] [2020-12-23 11:19:32,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:19:32,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:19:32,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544842244] [2020-12-23 11:19:32,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:19:32,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:19:32,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:19:32,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:19:32,120 INFO L87 Difference]: Start difference. First operand 16693 states and 24888 transitions. Second operand 10 states. [2020-12-23 11:19:38,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:19:38,024 INFO L93 Difference]: Finished difference Result 41584 states and 61907 transitions. [2020-12-23 11:19:38,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 11:19:38,030 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 100 [2020-12-23 11:19:38,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:19:38,061 INFO L225 Difference]: With dead ends: 41584 [2020-12-23 11:19:38,062 INFO L226 Difference]: Without dead ends: 25091 [2020-12-23 11:19:38,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:19:38,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25091 states. [2020-12-23 11:19:41,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25091 to 16693. [2020-12-23 11:19:41,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16693 states. [2020-12-23 11:19:41,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16693 states to 16693 states and 24885 transitions. [2020-12-23 11:19:41,498 INFO L78 Accepts]: Start accepts. Automaton has 16693 states and 24885 transitions. Word has length 100 [2020-12-23 11:19:41,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:19:41,498 INFO L481 AbstractCegarLoop]: Abstraction has 16693 states and 24885 transitions. [2020-12-23 11:19:41,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:19:41,498 INFO L276 IsEmpty]: Start isEmpty. Operand 16693 states and 24885 transitions. [2020-12-23 11:19:41,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-23 11:19:41,501 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:19:41,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:41,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 11:19:41,502 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:19:41,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:19:41,502 INFO L82 PathProgramCache]: Analyzing trace with hash -650346524, now seen corresponding path program 1 times [2020-12-23 11:19:41,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:19:41,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91515282] [2020-12-23 11:19:41,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:19:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:19:41,748 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 11:19:41,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91515282] [2020-12-23 11:19:41,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:19:41,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:19:41,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130166564] [2020-12-23 11:19:41,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:19:41,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:19:41,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:19:41,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:19:41,750 INFO L87 Difference]: Start difference. First operand 16693 states and 24885 transitions. Second operand 10 states. [2020-12-23 11:19:49,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:19:49,351 INFO L93 Difference]: Finished difference Result 50176 states and 74625 transitions. [2020-12-23 11:19:49,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 11:19:49,352 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-12-23 11:19:49,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:19:49,385 INFO L225 Difference]: With dead ends: 50176 [2020-12-23 11:19:49,386 INFO L226 Difference]: Without dead ends: 33698 [2020-12-23 11:19:49,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:19:49,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33698 states. [2020-12-23 11:19:52,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33698 to 16693. [2020-12-23 11:19:52,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16693 states. [2020-12-23 11:19:52,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16693 states to 16693 states and 24879 transitions. [2020-12-23 11:19:52,726 INFO L78 Accepts]: Start accepts. Automaton has 16693 states and 24879 transitions. Word has length 101 [2020-12-23 11:19:52,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:19:52,726 INFO L481 AbstractCegarLoop]: Abstraction has 16693 states and 24879 transitions. [2020-12-23 11:19:52,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:19:52,727 INFO L276 IsEmpty]: Start isEmpty. Operand 16693 states and 24879 transitions. [2020-12-23 11:19:52,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-23 11:19:52,729 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:19:52,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:52,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 11:19:52,730 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:19:52,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:19:52,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1017088267, now seen corresponding path program 1 times [2020-12-23 11:19:52,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:19:52,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802869621] [2020-12-23 11:19:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:19:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:19:53,066 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 11:19:53,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802869621] [2020-12-23 11:19:53,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:19:53,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-23 11:19:53,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307862635] [2020-12-23 11:19:53,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 11:19:53,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:19:53,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 11:19:53,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-12-23 11:19:53,068 INFO L87 Difference]: Start difference. First operand 16693 states and 24879 transitions. Second operand 12 states. [2020-12-23 11:19:53,782 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-12-23 11:19:54,816 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2020-12-23 11:21:20,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:21:20,501 INFO L93 Difference]: Finished difference Result 377154 states and 559525 transitions. [2020-12-23 11:21:20,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-12-23 11:21:20,507 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 102 [2020-12-23 11:21:20,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:21:21,321 INFO L225 Difference]: With dead ends: 377154 [2020-12-23 11:21:21,322 INFO L226 Difference]: Without dead ends: 360831 [2020-12-23 11:21:21,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=545, Invalid=1905, Unknown=0, NotChecked=0, Total=2450 [2020-12-23 11:21:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360831 states. [2020-12-23 11:21:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360831 to 16711. [2020-12-23 11:21:29,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16711 states. [2020-12-23 11:21:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16711 states to 16711 states and 24894 transitions. [2020-12-23 11:21:29,049 INFO L78 Accepts]: Start accepts. Automaton has 16711 states and 24894 transitions. Word has length 102 [2020-12-23 11:21:29,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:21:29,049 INFO L481 AbstractCegarLoop]: Abstraction has 16711 states and 24894 transitions. [2020-12-23 11:21:29,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 11:21:29,049 INFO L276 IsEmpty]: Start isEmpty. Operand 16711 states and 24894 transitions. [2020-12-23 11:21:29,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-23 11:21:29,053 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:21:29,053 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:21:29,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 11:21:29,053 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:21:29,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:21:29,054 INFO L82 PathProgramCache]: Analyzing trace with hash -916891525, now seen corresponding path program 1 times [2020-12-23 11:21:29,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:21:29,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973665444] [2020-12-23 11:21:29,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:21:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:21:29,341 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 11:21:29,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973665444] [2020-12-23 11:21:29,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:21:29,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:21:29,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463841535] [2020-12-23 11:21:29,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:21:29,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:21:29,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:21:29,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:21:29,344 INFO L87 Difference]: Start difference. First operand 16711 states and 24894 transitions. Second operand 10 states. [2020-12-23 11:21:42,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:21:42,943 INFO L93 Difference]: Finished difference Result 57413 states and 85613 transitions. [2020-12-23 11:21:42,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 11:21:42,944 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-12-23 11:21:42,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:21:42,985 INFO L225 Difference]: With dead ends: 57413 [2020-12-23 11:21:42,985 INFO L226 Difference]: Without dead ends: 41135 [2020-12-23 11:21:42,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-12-23 11:21:43,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41135 states. [2020-12-23 11:21:48,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41135 to 16711. [2020-12-23 11:21:48,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16711 states. [2020-12-23 11:21:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16711 states to 16711 states and 24874 transitions. [2020-12-23 11:21:48,186 INFO L78 Accepts]: Start accepts. Automaton has 16711 states and 24874 transitions. Word has length 103 [2020-12-23 11:21:48,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:21:48,186 INFO L481 AbstractCegarLoop]: Abstraction has 16711 states and 24874 transitions. [2020-12-23 11:21:48,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:21:48,186 INFO L276 IsEmpty]: Start isEmpty. Operand 16711 states and 24874 transitions. [2020-12-23 11:21:48,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-23 11:21:48,189 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:21:48,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:21:48,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 11:21:48,190 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:21:48,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:21:48,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1323186080, now seen corresponding path program 1 times [2020-12-23 11:21:48,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:21:48,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014028887] [2020-12-23 11:21:48,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:21:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:21:51,899 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 11:21:51,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014028887] [2020-12-23 11:21:51,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:21:51,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2020-12-23 11:21:51,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31248671] [2020-12-23 11:21:51,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-12-23 11:21:51,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:21:51,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-12-23 11:21:51,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1435, Unknown=0, NotChecked=0, Total=1560 [2020-12-23 11:21:51,902 INFO L87 Difference]: Start difference. First operand 16711 states and 24874 transitions. Second operand 40 states. [2020-12-23 11:21:52,692 WARN L197 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 155 [2020-12-23 11:21:53,440 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-12-23 11:21:53,676 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-12-23 11:21:53,951 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-12-23 11:21:54,229 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-12-23 11:21:54,500 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-23 11:21:54,780 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2020-12-23 11:21:55,092 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-12-23 11:21:55,408 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-12-23 11:21:55,751 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2020-12-23 11:21:56,619 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2020-12-23 11:21:57,041 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2020-12-23 11:21:57,605 WARN L197 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 105 [2020-12-23 11:21:58,176 WARN L197 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2020-12-23 11:21:59,018 WARN L197 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 125 [2020-12-23 11:21:59,796 WARN L197 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2020-12-23 11:22:00,790 WARN L197 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 164 [2020-12-23 11:22:01,897 WARN L197 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 174 [2020-12-23 11:22:03,272 WARN L197 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 203 DAG size of output: 182 [2020-12-23 11:22:04,550 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 211 DAG size of output: 189 [2020-12-23 11:22:06,044 WARN L197 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 221 DAG size of output: 199 [2020-12-23 11:22:06,551 WARN L197 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2020-12-23 11:22:07,036 WARN L197 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2020-12-23 11:22:07,368 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2020-12-23 11:22:07,776 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2020-12-23 11:22:08,191 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-12-23 11:22:08,415 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-23 11:22:08,720 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-12-23 11:22:09,249 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-12-23 11:22:09,484 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-23 11:22:09,819 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-23 11:22:10,432 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-12-23 11:22:10,838 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-23 11:22:11,267 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-12-23 11:22:11,575 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-12-23 11:22:11,930 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-12-23 11:22:12,697 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-12-23 11:22:13,315 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-12-23 11:22:13,723 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-12-23 11:22:14,293 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-12-23 11:22:14,769 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-12-23 11:22:16,066 WARN L197 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-12-23 11:22:16,668 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-12-23 11:22:17,477 WARN L197 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-12-23 11:22:17,999 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-12-23 11:22:29,634 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-23 11:22:32,168 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-12-23 11:22:36,281 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57