/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.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 11:23:58,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 11:23:58,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 11:23:58,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 11:23:58,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 11:23:58,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 11:23:58,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 11:23:58,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 11:23:58,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 11:23:58,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 11:23:58,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 11:23:58,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 11:23:58,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 11:23:58,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 11:23:58,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 11:23:58,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 11:23:58,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 11:23:58,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 11:23:58,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 11:23:58,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 11:23:58,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 11:23:58,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 11:23:58,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 11:23:58,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 11:23:58,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 11:23:58,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 11:23:58,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 11:23:58,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 11:23:58,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 11:23:58,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 11:23:58,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 11:23:58,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 11:23:58,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 11:23:58,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 11:23:58,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 11:23:58,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 11:23:58,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 11:23:58,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 11:23:58,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 11:23:58,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 11:23:58,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 11:23:58,542 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 11:23:58,598 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 11:23:58,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 11:23:58,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 11:23:58,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 11:23:58,602 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 11:23:58,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 11:23:58,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 11:23:58,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 11:23:58,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 11:23:58,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 11:23:58,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 11:23:58,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 11:23:58,605 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 11:23:58,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 11:23:58,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 11:23:58,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 11:23:58,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 11:23:58,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:23:58,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 11:23:58,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 11:23:58,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 11:23:58,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 11:23:58,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 11:23:58,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 11:23:58,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 11:23:58,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 11:23:59,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 11:23:59,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 11:23:59,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 11:23:59,131 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 11:23:59,132 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 11:23:59,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 11:23:59,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6ae857765/539d2adb2f0d493785663781751ef706/FLAG4044c7aa9 [2020-12-23 11:23:59,953 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 11:23:59,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 11:23:59,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6ae857765/539d2adb2f0d493785663781751ef706/FLAG4044c7aa9 [2020-12-23 11:24:00,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6ae857765/539d2adb2f0d493785663781751ef706 [2020-12-23 11:24:00,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 11:24:00,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 11:24:00,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 11:24:00,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 11:24:00,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 11:24:00,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:24:00" (1/1) ... [2020-12-23 11:24:00,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec8d413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00, skipping insertion in model container [2020-12-23 11:24:00,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:24:00" (1/1) ... [2020-12-23 11:24:00,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 11:24:00,312 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[~id7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_60836~0,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[~p7_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p7_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p8_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p8_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p8_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] 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__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] 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__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] 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[~node7__m7~0,] left hand side expression in assignment: lhs: VariableLHS[~node7__m7~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node8__m8~0,] left hand side expression in assignment: lhs: VariableLHS[~node8__m8~0,] left hand side expression in assignment: lhs: VariableLHS[~p7_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode8~0,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[~p7_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p7_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p8_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p8_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_61007~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2020-12-23 11:24:00,687 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.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[8236,8249] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node8____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p8_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node8____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node7____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p7_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node7____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] 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[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] 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[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] 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[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 11:24:00,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:24:00,791 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[~id7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_60836~0,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[~p7_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p7_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p8_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p8_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p8_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] 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__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] 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__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] 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[~node7__m7~0,] left hand side expression in assignment: lhs: VariableLHS[~node7__m7~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node8__m8~0,] left hand side expression in assignment: lhs: VariableLHS[~node8__m8~0,] left hand side expression in assignment: lhs: VariableLHS[~p7_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode8~0,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[~p7_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p7_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p8_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p8_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_61007~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2020-12-23 11:24:00,912 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.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[8236,8249] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node8____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p8_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode8~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node8____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node7____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p7_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node7____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] 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[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] 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[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] 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[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 11:24:00,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:24:00,964 INFO L208 MainTranslator]: Completed translation [2020-12-23 11:24:00,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00 WrapperNode [2020-12-23 11:24:00,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 11:24:00,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 11:24:00,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 11:24:00,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 11:24:00,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00" (1/1) ... [2020-12-23 11:24:00,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00" (1/1) ... [2020-12-23 11:24:01,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 11:24:01,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 11:24:01,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 11:24:01,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 11:24:01,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00" (1/1) ... [2020-12-23 11:24:01,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00" (1/1) ... [2020-12-23 11:24:01,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00" (1/1) ... [2020-12-23 11:24:01,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00" (1/1) ... [2020-12-23 11:24:01,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00" (1/1) ... [2020-12-23 11:24:01,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00" (1/1) ... [2020-12-23 11:24:01,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00" (1/1) ... [2020-12-23 11:24:01,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 11:24:01,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 11:24:01,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 11:24:01,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 11:24:01,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00" (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 11:24:01,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 11:24:01,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 11:24:01,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 11:24:01,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 11:24:02,466 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 11:24:02,467 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 11:24:02,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:24:02 BoogieIcfgContainer [2020-12-23 11:24:02,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 11:24:02,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 11:24:02,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 11:24:02,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 11:24:02,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:24:00" (1/3) ... [2020-12-23 11:24:02,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0ab05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:24:02, skipping insertion in model container [2020-12-23 11:24:02,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:00" (2/3) ... [2020-12-23 11:24:02,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0ab05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:24:02, skipping insertion in model container [2020-12-23 11:24:02,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:24:02" (3/3) ... [2020-12-23 11:24:02,489 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 11:24:02,497 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 11:24:02,503 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 11:24:02,528 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 11:24:02,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 11:24:02,576 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 11:24:02,576 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 11:24:02,576 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 11:24:02,576 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 11:24:02,576 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 11:24:02,577 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 11:24:02,577 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 11:24:02,602 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2020-12-23 11:24:02,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-23 11:24:02,624 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:02,625 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 11:24:02,625 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:02,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:02,631 INFO L82 PathProgramCache]: Analyzing trace with hash 521817496, now seen corresponding path program 1 times [2020-12-23 11:24:02,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:02,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713476370] [2020-12-23 11:24:02,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:03,184 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 11:24:03,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713476370] [2020-12-23 11:24:03,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:03,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:24:03,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216644254] [2020-12-23 11:24:03,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:24:03,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:03,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:24:03,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:24:03,210 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 3 states. [2020-12-23 11:24:03,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:03,290 INFO L93 Difference]: Finished difference Result 341 states and 560 transitions. [2020-12-23 11:24:03,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:24:03,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-12-23 11:24:03,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:03,307 INFO L225 Difference]: With dead ends: 341 [2020-12-23 11:24:03,307 INFO L226 Difference]: Without dead ends: 240 [2020-12-23 11:24:03,311 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 11:24:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-12-23 11:24:03,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2020-12-23 11:24:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-12-23 11:24:03,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 341 transitions. [2020-12-23 11:24:03,412 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 341 transitions. Word has length 102 [2020-12-23 11:24:03,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:03,413 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 341 transitions. [2020-12-23 11:24:03,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:24:03,413 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 341 transitions. [2020-12-23 11:24:03,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-23 11:24:03,418 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:03,418 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 11:24:03,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 11:24:03,419 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:03,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:03,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1097817700, now seen corresponding path program 1 times [2020-12-23 11:24:03,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:03,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482066664] [2020-12-23 11:24:03,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:03,686 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 11:24:03,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482066664] [2020-12-23 11:24:03,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:03,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:24:03,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178129566] [2020-12-23 11:24:03,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:24:03,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:03,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:24:03,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:24:03,691 INFO L87 Difference]: Start difference. First operand 238 states and 341 transitions. Second operand 3 states. [2020-12-23 11:24:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:03,747 INFO L93 Difference]: Finished difference Result 570 states and 869 transitions. [2020-12-23 11:24:03,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:24:03,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-23 11:24:03,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:03,752 INFO L225 Difference]: With dead ends: 570 [2020-12-23 11:24:03,753 INFO L226 Difference]: Without dead ends: 396 [2020-12-23 11:24:03,755 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 11:24:03,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-12-23 11:24:03,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 394. [2020-12-23 11:24:03,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-12-23 11:24:03,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 589 transitions. [2020-12-23 11:24:03,830 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 589 transitions. Word has length 103 [2020-12-23 11:24:03,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:03,833 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 589 transitions. [2020-12-23 11:24:03,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:24:03,834 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 589 transitions. [2020-12-23 11:24:03,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-23 11:24:03,839 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:03,839 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 11:24:03,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 11:24:03,840 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:03,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:03,841 INFO L82 PathProgramCache]: Analyzing trace with hash 186284590, now seen corresponding path program 1 times [2020-12-23 11:24:03,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:03,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47483402] [2020-12-23 11:24:03,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:04,092 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 11:24:04,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47483402] [2020-12-23 11:24:04,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:04,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:24:04,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150265375] [2020-12-23 11:24:04,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:24:04,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:04,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:24:04,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:24:04,095 INFO L87 Difference]: Start difference. First operand 394 states and 589 transitions. Second operand 3 states. [2020-12-23 11:24:04,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:04,153 INFO L93 Difference]: Finished difference Result 1022 states and 1587 transitions. [2020-12-23 11:24:04,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:24:04,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-12-23 11:24:04,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:04,158 INFO L225 Difference]: With dead ends: 1022 [2020-12-23 11:24:04,158 INFO L226 Difference]: Without dead ends: 692 [2020-12-23 11:24:04,161 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 11:24:04,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2020-12-23 11:24:04,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 690. [2020-12-23 11:24:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2020-12-23 11:24:04,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1057 transitions. [2020-12-23 11:24:04,227 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1057 transitions. Word has length 104 [2020-12-23 11:24:04,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:04,228 INFO L481 AbstractCegarLoop]: Abstraction has 690 states and 1057 transitions. [2020-12-23 11:24:04,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:24:04,228 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1057 transitions. [2020-12-23 11:24:04,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-23 11:24:04,230 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:04,231 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, 1] [2020-12-23 11:24:04,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 11:24:04,231 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:04,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:04,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1107025040, now seen corresponding path program 1 times [2020-12-23 11:24:04,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:04,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828676451] [2020-12-23 11:24:04,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:04,350 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 11:24:04,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828676451] [2020-12-23 11:24:04,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:04,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:24:04,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756620650] [2020-12-23 11:24:04,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:24:04,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:04,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:24:04,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:24:04,356 INFO L87 Difference]: Start difference. First operand 690 states and 1057 transitions. Second operand 3 states. [2020-12-23 11:24:04,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:04,449 INFO L93 Difference]: Finished difference Result 1878 states and 2939 transitions. [2020-12-23 11:24:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:24:04,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-12-23 11:24:04,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:04,463 INFO L225 Difference]: With dead ends: 1878 [2020-12-23 11:24:04,463 INFO L226 Difference]: Without dead ends: 1252 [2020-12-23 11:24:04,465 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 11:24:04,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2020-12-23 11:24:04,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2020-12-23 11:24:04,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-12-23 11:24:04,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1937 transitions. [2020-12-23 11:24:04,530 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1937 transitions. Word has length 105 [2020-12-23 11:24:04,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:04,531 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1937 transitions. [2020-12-23 11:24:04,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:24:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1937 transitions. [2020-12-23 11:24:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-23 11:24:04,533 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:04,533 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, 1, 1] [2020-12-23 11:24:04,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 11:24:04,534 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:04,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:04,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1750887068, now seen corresponding path program 1 times [2020-12-23 11:24:04,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:04,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726154088] [2020-12-23 11:24:04,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:04,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:24:04,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726154088] [2020-12-23 11:24:04,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:04,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:24:04,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247058004] [2020-12-23 11:24:04,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:24:04,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:04,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:24:04,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:24:04,651 INFO L87 Difference]: Start difference. First operand 1250 states and 1937 transitions. Second operand 3 states. [2020-12-23 11:24:04,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:04,785 INFO L93 Difference]: Finished difference Result 3494 states and 5475 transitions. [2020-12-23 11:24:04,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:24:04,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-12-23 11:24:04,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:04,798 INFO L225 Difference]: With dead ends: 3494 [2020-12-23 11:24:04,799 INFO L226 Difference]: Without dead ends: 2308 [2020-12-23 11:24:04,801 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 11:24:04,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2020-12-23 11:24:04,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2306. [2020-12-23 11:24:04,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2306 states. [2020-12-23 11:24:04,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 3585 transitions. [2020-12-23 11:24:04,950 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 3585 transitions. Word has length 106 [2020-12-23 11:24:04,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:04,951 INFO L481 AbstractCegarLoop]: Abstraction has 2306 states and 3585 transitions. [2020-12-23 11:24:04,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:24:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 3585 transitions. [2020-12-23 11:24:04,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-23 11:24:04,953 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:04,953 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, 1, 1, 1] [2020-12-23 11:24:04,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 11:24:04,954 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:04,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:04,954 INFO L82 PathProgramCache]: Analyzing trace with hash -67978193, now seen corresponding path program 1 times [2020-12-23 11:24:04,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:04,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515120534] [2020-12-23 11:24:04,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:05,076 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 11:24:05,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515120534] [2020-12-23 11:24:05,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:05,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:24:05,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770912259] [2020-12-23 11:24:05,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:24:05,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:05,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:24:05,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:24:05,082 INFO L87 Difference]: Start difference. First operand 2306 states and 3585 transitions. Second operand 3 states. [2020-12-23 11:24:05,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:05,411 INFO L93 Difference]: Finished difference Result 6534 states and 10211 transitions. [2020-12-23 11:24:05,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:24:05,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-23 11:24:05,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:05,442 INFO L225 Difference]: With dead ends: 6534 [2020-12-23 11:24:05,443 INFO L226 Difference]: Without dead ends: 4292 [2020-12-23 11:24:05,450 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 11:24:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2020-12-23 11:24:05,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 4290. [2020-12-23 11:24:05,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4290 states. [2020-12-23 11:24:05,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 6657 transitions. [2020-12-23 11:24:05,862 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 6657 transitions. Word has length 107 [2020-12-23 11:24:05,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:05,862 INFO L481 AbstractCegarLoop]: Abstraction has 4290 states and 6657 transitions. [2020-12-23 11:24:05,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:24:05,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 6657 transitions. [2020-12-23 11:24:05,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-23 11:24:05,864 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:05,864 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, 1, 1, 1, 1] [2020-12-23 11:24:05,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 11:24:05,865 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:05,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:05,866 INFO L82 PathProgramCache]: Analyzing trace with hash 827456551, now seen corresponding path program 1 times [2020-12-23 11:24:05,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:05,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683174434] [2020-12-23 11:24:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:06,028 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 11:24:06,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683174434] [2020-12-23 11:24:06,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:06,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:24:06,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117589782] [2020-12-23 11:24:06,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:24:06,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:06,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:24:06,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:24:06,032 INFO L87 Difference]: Start difference. First operand 4290 states and 6657 transitions. Second operand 3 states. [2020-12-23 11:24:06,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:06,502 INFO L93 Difference]: Finished difference Result 12230 states and 19011 transitions. [2020-12-23 11:24:06,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:24:06,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2020-12-23 11:24:06,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:06,545 INFO L225 Difference]: With dead ends: 12230 [2020-12-23 11:24:06,545 INFO L226 Difference]: Without dead ends: 8004 [2020-12-23 11:24:06,553 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 11:24:06,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8004 states. [2020-12-23 11:24:07,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8004 to 8002. [2020-12-23 11:24:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8002 states. [2020-12-23 11:24:07,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8002 states to 8002 states and 12353 transitions. [2020-12-23 11:24:07,078 INFO L78 Accepts]: Start accepts. Automaton has 8002 states and 12353 transitions. Word has length 108 [2020-12-23 11:24:07,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:07,078 INFO L481 AbstractCegarLoop]: Abstraction has 8002 states and 12353 transitions. [2020-12-23 11:24:07,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:24:07,079 INFO L276 IsEmpty]: Start isEmpty. Operand 8002 states and 12353 transitions. [2020-12-23 11:24:07,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 11:24:07,080 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:07,081 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, 1, 1, 1, 1, 1] [2020-12-23 11:24:07,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 11:24:07,081 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:07,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:07,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1506711706, now seen corresponding path program 1 times [2020-12-23 11:24:07,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:07,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87429305] [2020-12-23 11:24:07,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:07,250 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 11:24:07,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87429305] [2020-12-23 11:24:07,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:07,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:24:07,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788007479] [2020-12-23 11:24:07,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:24:07,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:07,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:24:07,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:24:07,253 INFO L87 Difference]: Start difference. First operand 8002 states and 12353 transitions. Second operand 5 states. [2020-12-23 11:24:08,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:08,041 INFO L93 Difference]: Finished difference Result 15940 states and 24642 transitions. [2020-12-23 11:24:08,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:24:08,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-12-23 11:24:08,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:08,105 INFO L225 Difference]: With dead ends: 15940 [2020-12-23 11:24:08,105 INFO L226 Difference]: Without dead ends: 8002 [2020-12-23 11:24:08,117 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 11:24:08,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8002 states. [2020-12-23 11:24:08,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8002 to 8002. [2020-12-23 11:24:08,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8002 states. [2020-12-23 11:24:08,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8002 states to 8002 states and 12289 transitions. [2020-12-23 11:24:08,672 INFO L78 Accepts]: Start accepts. Automaton has 8002 states and 12289 transitions. Word has length 109 [2020-12-23 11:24:08,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:08,672 INFO L481 AbstractCegarLoop]: Abstraction has 8002 states and 12289 transitions. [2020-12-23 11:24:08,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:24:08,673 INFO L276 IsEmpty]: Start isEmpty. Operand 8002 states and 12289 transitions. [2020-12-23 11:24:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 11:24:08,674 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:08,674 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, 1, 1, 1, 1, 1] [2020-12-23 11:24:08,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 11:24:08,675 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:08,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:08,675 INFO L82 PathProgramCache]: Analyzing trace with hash -232843701, now seen corresponding path program 1 times [2020-12-23 11:24:08,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:08,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491282077] [2020-12-23 11:24:08,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:08,828 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 11:24:08,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491282077] [2020-12-23 11:24:08,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:08,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:24:08,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542754554] [2020-12-23 11:24:08,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:24:08,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:08,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:24:08,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:24:08,837 INFO L87 Difference]: Start difference. First operand 8002 states and 12289 transitions. Second operand 5 states. [2020-12-23 11:24:09,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:09,485 INFO L93 Difference]: Finished difference Result 15940 states and 24514 transitions. [2020-12-23 11:24:09,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:24:09,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-12-23 11:24:09,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:09,504 INFO L225 Difference]: With dead ends: 15940 [2020-12-23 11:24:09,504 INFO L226 Difference]: Without dead ends: 8002 [2020-12-23 11:24:09,515 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 11:24:09,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8002 states. [2020-12-23 11:24:10,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8002 to 8002. [2020-12-23 11:24:10,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8002 states. [2020-12-23 11:24:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8002 states to 8002 states and 12225 transitions. [2020-12-23 11:24:10,104 INFO L78 Accepts]: Start accepts. Automaton has 8002 states and 12225 transitions. Word has length 109 [2020-12-23 11:24:10,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:10,105 INFO L481 AbstractCegarLoop]: Abstraction has 8002 states and 12225 transitions. [2020-12-23 11:24:10,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:24:10,105 INFO L276 IsEmpty]: Start isEmpty. Operand 8002 states and 12225 transitions. [2020-12-23 11:24:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 11:24:10,106 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:10,107 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, 1, 1, 1, 1, 1] [2020-12-23 11:24:10,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 11:24:10,107 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:10,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:10,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1679873296, now seen corresponding path program 1 times [2020-12-23 11:24:10,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:10,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042519600] [2020-12-23 11:24:10,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:10,243 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 11:24:10,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042519600] [2020-12-23 11:24:10,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:10,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:24:10,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608152703] [2020-12-23 11:24:10,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:24:10,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:10,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:24:10,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:24:10,247 INFO L87 Difference]: Start difference. First operand 8002 states and 12225 transitions. Second operand 6 states. [2020-12-23 11:24:11,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:11,497 INFO L93 Difference]: Finished difference Result 23750 states and 36291 transitions. [2020-12-23 11:24:11,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:24:11,498 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2020-12-23 11:24:11,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:11,532 INFO L225 Difference]: With dead ends: 23750 [2020-12-23 11:24:11,532 INFO L226 Difference]: Without dead ends: 15812 [2020-12-23 11:24:11,543 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 11:24:11,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15812 states. [2020-12-23 11:24:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15812 to 15810. [2020-12-23 11:24:12,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15810 states. [2020-12-23 11:24:12,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15810 states to 15810 states and 24001 transitions. [2020-12-23 11:24:12,624 INFO L78 Accepts]: Start accepts. Automaton has 15810 states and 24001 transitions. Word has length 109 [2020-12-23 11:24:12,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:12,625 INFO L481 AbstractCegarLoop]: Abstraction has 15810 states and 24001 transitions. [2020-12-23 11:24:12,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:24:12,625 INFO L276 IsEmpty]: Start isEmpty. Operand 15810 states and 24001 transitions. [2020-12-23 11:24:12,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 11:24:12,626 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:12,626 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, 1, 1, 1, 1, 1] [2020-12-23 11:24:12,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 11:24:12,627 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:12,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:12,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1783617045, now seen corresponding path program 1 times [2020-12-23 11:24:12,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:12,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724382194] [2020-12-23 11:24:12,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:12,774 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 11:24:12,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724382194] [2020-12-23 11:24:12,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:12,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:24:12,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279577940] [2020-12-23 11:24:12,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:24:12,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:12,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:24:12,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:24:12,779 INFO L87 Difference]: Start difference. First operand 15810 states and 24001 transitions. Second operand 6 states. [2020-12-23 11:24:14,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:14,822 INFO L93 Difference]: Finished difference Result 47174 states and 71619 transitions. [2020-12-23 11:24:14,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:24:14,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2020-12-23 11:24:14,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:14,899 INFO L225 Difference]: With dead ends: 47174 [2020-12-23 11:24:14,899 INFO L226 Difference]: Without dead ends: 31428 [2020-12-23 11:24:14,919 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 11:24:14,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31428 states. [2020-12-23 11:24:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31428 to 31426. [2020-12-23 11:24:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31426 states. [2020-12-23 11:24:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31426 states to 31426 states and 47553 transitions. [2020-12-23 11:24:16,821 INFO L78 Accepts]: Start accepts. Automaton has 31426 states and 47553 transitions. Word has length 109 [2020-12-23 11:24:16,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:16,821 INFO L481 AbstractCegarLoop]: Abstraction has 31426 states and 47553 transitions. [2020-12-23 11:24:16,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:24:16,822 INFO L276 IsEmpty]: Start isEmpty. Operand 31426 states and 47553 transitions. [2020-12-23 11:24:16,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 11:24:16,823 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:16,823 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, 1, 1, 1, 1, 1] [2020-12-23 11:24:16,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 11:24:16,824 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:16,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:16,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1047278694, now seen corresponding path program 1 times [2020-12-23 11:24:16,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:16,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544306992] [2020-12-23 11:24:16,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:16,971 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 11:24:16,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544306992] [2020-12-23 11:24:16,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:16,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:24:16,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154634603] [2020-12-23 11:24:16,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:24:16,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:16,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:24:16,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:24:16,974 INFO L87 Difference]: Start difference. First operand 31426 states and 47553 transitions. Second operand 6 states. [2020-12-23 11:24:20,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:20,682 INFO L93 Difference]: Finished difference Result 93894 states and 142019 transitions. [2020-12-23 11:24:20,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:24:20,682 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2020-12-23 11:24:20,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:20,816 INFO L225 Difference]: With dead ends: 93894 [2020-12-23 11:24:20,816 INFO L226 Difference]: Without dead ends: 62532 [2020-12-23 11:24:20,852 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 11:24:20,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62532 states. [2020-12-23 11:24:24,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62532 to 62530. [2020-12-23 11:24:24,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62530 states. [2020-12-23 11:24:24,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62530 states to 62530 states and 94273 transitions. [2020-12-23 11:24:24,853 INFO L78 Accepts]: Start accepts. Automaton has 62530 states and 94273 transitions. Word has length 109 [2020-12-23 11:24:24,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:24,854 INFO L481 AbstractCegarLoop]: Abstraction has 62530 states and 94273 transitions. [2020-12-23 11:24:24,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:24:24,854 INFO L276 IsEmpty]: Start isEmpty. Operand 62530 states and 94273 transitions. [2020-12-23 11:24:24,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 11:24:24,855 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:24,855 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, 1, 1, 1, 1, 1] [2020-12-23 11:24:24,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 11:24:24,856 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:24,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:24,857 INFO L82 PathProgramCache]: Analyzing trace with hash -794751839, now seen corresponding path program 1 times [2020-12-23 11:24:24,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:24,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746040424] [2020-12-23 11:24:24,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:24,995 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 11:24:24,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746040424] [2020-12-23 11:24:24,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:24,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:24:24,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842742129] [2020-12-23 11:24:24,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:24:24,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:24,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:24:24,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:24:24,998 INFO L87 Difference]: Start difference. First operand 62530 states and 94273 transitions. Second operand 5 states. [2020-12-23 11:24:28,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:28,621 INFO L93 Difference]: Finished difference Result 124996 states and 188482 transitions. [2020-12-23 11:24:28,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:24:28,622 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-12-23 11:24:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:28,755 INFO L225 Difference]: With dead ends: 124996 [2020-12-23 11:24:28,755 INFO L226 Difference]: Without dead ends: 62530 [2020-12-23 11:24:28,822 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 11:24:28,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62530 states. [2020-12-23 11:24:32,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62530 to 62530. [2020-12-23 11:24:32,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62530 states. [2020-12-23 11:24:32,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62530 states to 62530 states and 93761 transitions. [2020-12-23 11:24:32,752 INFO L78 Accepts]: Start accepts. Automaton has 62530 states and 93761 transitions. Word has length 109 [2020-12-23 11:24:32,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:32,753 INFO L481 AbstractCegarLoop]: Abstraction has 62530 states and 93761 transitions. [2020-12-23 11:24:32,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:24:32,753 INFO L276 IsEmpty]: Start isEmpty. Operand 62530 states and 93761 transitions. [2020-12-23 11:24:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 11:24:32,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:32,754 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, 1, 1, 1, 1, 1] [2020-12-23 11:24:32,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 11:24:32,755 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:32,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:32,756 INFO L82 PathProgramCache]: Analyzing trace with hash 926579036, now seen corresponding path program 1 times [2020-12-23 11:24:32,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:32,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422604662] [2020-12-23 11:24:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:33,072 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 11:24:33,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422604662] [2020-12-23 11:24:33,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:33,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 11:24:33,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699405112] [2020-12-23 11:24:33,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:24:33,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:33,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:24:33,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:24:33,075 INFO L87 Difference]: Start difference. First operand 62530 states and 93761 transitions. Second operand 10 states. [2020-12-23 11:25:39,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:25:39,798 INFO L93 Difference]: Finished difference Result 999520 states and 1499216 transitions. [2020-12-23 11:25:39,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 11:25:39,798 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 109 [2020-12-23 11:25:39,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:25:42,084 INFO L225 Difference]: With dead ends: 999520 [2020-12-23 11:25:42,084 INFO L226 Difference]: Without dead ends: 937054 [2020-12-23 11:25:42,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:25:43,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937054 states. [2020-12-23 11:26:05,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937054 to 124994. [2020-12-23 11:26:05,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124994 states. [2020-12-23 11:26:05,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124994 states to 124994 states and 185409 transitions. [2020-12-23 11:26:05,279 INFO L78 Accepts]: Start accepts. Automaton has 124994 states and 185409 transitions. Word has length 109 [2020-12-23 11:26:05,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:26:05,279 INFO L481 AbstractCegarLoop]: Abstraction has 124994 states and 185409 transitions. [2020-12-23 11:26:05,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:26:05,280 INFO L276 IsEmpty]: Start isEmpty. Operand 124994 states and 185409 transitions. [2020-12-23 11:26:05,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-23 11:26:05,294 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:26:05,294 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:26:05,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 11:26:05,294 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:26:05,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:26:05,295 INFO L82 PathProgramCache]: Analyzing trace with hash 462406616, now seen corresponding path program 1 times [2020-12-23 11:26:05,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:26:05,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031698218] [2020-12-23 11:26:05,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:26:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:26:05,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:26:05,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031698218] [2020-12-23 11:26:05,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:26:05,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:26:05,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246765727] [2020-12-23 11:26:05,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:26:05,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:26:05,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:26:05,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:26:05,397 INFO L87 Difference]: Start difference. First operand 124994 states and 185409 transitions. Second operand 3 states. [2020-12-23 11:26:27,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:26:27,013 INFO L93 Difference]: Finished difference Result 307270 states and 454211 transitions. [2020-12-23 11:26:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:26:27,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-12-23 11:26:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:26:27,424 INFO L225 Difference]: With dead ends: 307270 [2020-12-23 11:26:27,425 INFO L226 Difference]: Without dead ends: 182340 [2020-12-23 11:26:27,572 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 11:26:27,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182340 states. [2020-12-23 11:26:49,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182340 to 181314. [2020-12-23 11:26:49,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181314 states. [2020-12-23 11:26:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181314 states to 181314 states and 265281 transitions. [2020-12-23 11:26:49,907 INFO L78 Accepts]: Start accepts. Automaton has 181314 states and 265281 transitions. Word has length 111 [2020-12-23 11:26:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:26:49,907 INFO L481 AbstractCegarLoop]: Abstraction has 181314 states and 265281 transitions. [2020-12-23 11:26:49,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:26:49,908 INFO L276 IsEmpty]: Start isEmpty. Operand 181314 states and 265281 transitions. [2020-12-23 11:26:49,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-23 11:26:49,909 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:26:49,909 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:26:49,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 11:26:49,909 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:26:49,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:26:49,910 INFO L82 PathProgramCache]: Analyzing trace with hash 483409271, now seen corresponding path program 1 times [2020-12-23 11:26:49,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:26:49,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410163321] [2020-12-23 11:26:49,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:26:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:26:50,542 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 11:26:50,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410163321] [2020-12-23 11:26:50,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:26:50,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 11:26:50,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846442488] [2020-12-23 11:26:50,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:26:50,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:26:50,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:26:50,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:26:50,544 INFO L87 Difference]: Start difference. First operand 181314 states and 265281 transitions. Second operand 10 states. [2020-12-23 11:26:50,821 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-23 11:26:50,936 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-12-23 11:26:51,063 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 54