/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.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 11:21:48,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 11:21:48,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 11:21:48,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 11:21:48,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 11:21:48,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 11:21:48,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 11:21:48,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 11:21:48,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 11:21:48,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 11:21:48,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 11:21:48,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 11:21:48,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 11:21:48,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 11:21:48,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 11:21:48,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 11:21:48,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 11:21:48,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 11:21:48,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 11:21:48,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 11:21:48,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 11:21:48,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 11:21:48,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 11:21:48,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 11:21:48,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 11:21:48,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 11:21:48,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 11:21:48,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 11:21:48,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 11:21:48,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 11:21:48,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 11:21:48,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 11:21:48,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 11:21:48,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 11:21:48,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 11:21:48,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 11:21:48,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 11:21:48,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 11:21:48,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 11:21:48,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 11:21:48,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 11:21:48,667 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 11:21:48,711 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 11:21:48,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 11:21:48,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 11:21:48,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 11:21:48,716 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 11:21:48,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 11:21:48,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 11:21:48,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 11:21:48,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 11:21:48,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 11:21:48,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 11:21:48,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 11:21:48,719 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 11:21:48,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 11:21:48,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 11:21:48,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 11:21:48,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 11:21:48,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:21:48,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 11:21:48,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 11:21:48,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 11:21:48,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 11:21:48,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 11:21:48,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 11:21:48,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 11:21:48,722 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 11:21:49,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 11:21:49,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 11:21:49,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 11:21:49,115 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 11:21:49,116 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 11:21:49,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2020-12-23 11:21:49,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c02bb5e6d/085ff9f941764bb7abc4ec1d52aef277/FLAG829f17ae5 [2020-12-23 11:21:49,969 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 11:21:49,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2020-12-23 11:21:49,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c02bb5e6d/085ff9f941764bb7abc4ec1d52aef277/FLAG829f17ae5 [2020-12-23 11:21:50,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c02bb5e6d/085ff9f941764bb7abc4ec1d52aef277 [2020-12-23 11:21:50,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 11:21:50,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 11:21:50,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 11:21:50,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 11:21:50,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 11:21:50,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:21:50" (1/1) ... [2020-12-23 11:21:50,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129ef5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:50, skipping insertion in model container [2020-12-23 11:21:50,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:21:50" (1/1) ... [2020-12-23 11:21:50,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 11:21:50,378 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[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_28553~0,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[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node7__m7~0,] 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[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_28698~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p7_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_28919_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node7__m7~1,] left hand side expression in assignment: lhs: VariableLHS[~node7__m7~1,] 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[~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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_28955~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2020-12-23 11:21:50,759 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.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10121,10134] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p7_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_28919_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_28834~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node7____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node7____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 11:21:50,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:21:50,869 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[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_28553~0,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[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node7__m7~0,] 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[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_28698~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p7_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_28919_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node7__m7~1,] left hand side expression in assignment: lhs: VariableLHS[~node7__m7~1,] 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[~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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_28955~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2020-12-23 11:21:50,993 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.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10121,10134] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p7_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_28919_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_28834~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st7~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node7____CPAchecker_TMP_0~1,] 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_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node7____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 11:21:51,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:21:51,091 INFO L208 MainTranslator]: Completed translation [2020-12-23 11:21:51,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51 WrapperNode [2020-12-23 11:21:51,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 11:21:51,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 11:21:51,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 11:21:51,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 11:21:51,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51" (1/1) ... [2020-12-23 11:21:51,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51" (1/1) ... [2020-12-23 11:21:51,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 11:21:51,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 11:21:51,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 11:21:51,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 11:21:51,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51" (1/1) ... [2020-12-23 11:21:51,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51" (1/1) ... [2020-12-23 11:21:51,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51" (1/1) ... [2020-12-23 11:21:51,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51" (1/1) ... [2020-12-23 11:21:51,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51" (1/1) ... [2020-12-23 11:21:51,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51" (1/1) ... [2020-12-23 11:21:51,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51" (1/1) ... [2020-12-23 11:21:51,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 11:21:51,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 11:21:51,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 11:21:51,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 11:21:51,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51" (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 11:21:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 11:21:51,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 11:21:51,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 11:21:51,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 11:21:52,591 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 11:21:52,592 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 11:21:52,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:21:52 BoogieIcfgContainer [2020-12-23 11:21:52,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 11:21:52,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 11:21:52,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 11:21:52,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 11:21:52,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:21:50" (1/3) ... [2020-12-23 11:21:52,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf4e60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:21:52, skipping insertion in model container [2020-12-23 11:21:52,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:21:51" (2/3) ... [2020-12-23 11:21:52,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf4e60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:21:52, skipping insertion in model container [2020-12-23 11:21:52,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:21:52" (3/3) ... [2020-12-23 11:21:52,603 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2020-12-23 11:21:52,610 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 11:21:52,615 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 11:21:52,634 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 11:21:52,665 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 11:21:52,666 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 11:21:52,666 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 11:21:52,666 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 11:21:52,666 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 11:21:52,666 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 11:21:52,667 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 11:21:52,667 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 11:21:52,687 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2020-12-23 11:21:52,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-23 11:21:52,699 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:21:52,700 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 11:21:52,700 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:21:52,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:21:52,707 INFO L82 PathProgramCache]: Analyzing trace with hash -2055920229, now seen corresponding path program 1 times [2020-12-23 11:21:52,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:21:52,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393861260] [2020-12-23 11:21:52,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:21:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:21:53,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:21:53,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393861260] [2020-12-23 11:21:53,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:21:53,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:21:53,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625977756] [2020-12-23 11:21:53,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:21:53,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:21:53,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:21:53,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:21:53,312 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 3 states. [2020-12-23 11:21:53,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:21:53,456 INFO L93 Difference]: Finished difference Result 392 states and 655 transitions. [2020-12-23 11:21:53,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:21:53,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2020-12-23 11:21:53,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:21:53,475 INFO L225 Difference]: With dead ends: 392 [2020-12-23 11:21:53,476 INFO L226 Difference]: Without dead ends: 302 [2020-12-23 11:21:53,482 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 11:21:53,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-12-23 11:21:53,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 300. [2020-12-23 11:21:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-12-23 11:21:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 430 transitions. [2020-12-23 11:21:53,573 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 430 transitions. Word has length 108 [2020-12-23 11:21:53,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:21:53,574 INFO L481 AbstractCegarLoop]: Abstraction has 300 states and 430 transitions. [2020-12-23 11:21:53,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:21:53,574 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 430 transitions. [2020-12-23 11:21:53,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-23 11:21:53,580 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:21:53,580 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] [2020-12-23 11:21:53,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 11:21:53,581 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:21:53,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:21:53,585 INFO L82 PathProgramCache]: Analyzing trace with hash -924120728, now seen corresponding path program 1 times [2020-12-23 11:21:53,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:21:53,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907128854] [2020-12-23 11:21:53,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:21:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:21:54,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:21:54,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907128854] [2020-12-23 11:21:54,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:21:54,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:21:54,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664408041] [2020-12-23 11:21:54,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:21:54,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:21:54,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:21:54,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:21:54,006 INFO L87 Difference]: Start difference. First operand 300 states and 430 transitions. Second operand 5 states. [2020-12-23 11:21:54,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:21:54,281 INFO L93 Difference]: Finished difference Result 523 states and 777 transitions. [2020-12-23 11:21:54,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:21:54,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-12-23 11:21:54,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:21:54,285 INFO L225 Difference]: With dead ends: 523 [2020-12-23 11:21:54,286 INFO L226 Difference]: Without dead ends: 300 [2020-12-23 11:21:54,288 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 11:21:54,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-12-23 11:21:54,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2020-12-23 11:21:54,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-12-23 11:21:54,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 427 transitions. [2020-12-23 11:21:54,333 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 427 transitions. Word has length 110 [2020-12-23 11:21:54,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:21:54,334 INFO L481 AbstractCegarLoop]: Abstraction has 300 states and 427 transitions. [2020-12-23 11:21:54,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:21:54,334 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 427 transitions. [2020-12-23 11:21:54,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-23 11:21:54,340 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:21:54,341 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 11:21:54,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 11:21:54,341 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:21:54,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:21:54,344 INFO L82 PathProgramCache]: Analyzing trace with hash -60688016, now seen corresponding path program 1 times [2020-12-23 11:21:54,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:21:54,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305631154] [2020-12-23 11:21:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:21:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:21:54,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:21:54,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305631154] [2020-12-23 11:21:54,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:21:54,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:21:54,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10652965] [2020-12-23 11:21:54,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:21:54,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:21:54,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:21:54,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:21:54,632 INFO L87 Difference]: Start difference. First operand 300 states and 427 transitions. Second operand 6 states. [2020-12-23 11:21:54,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:21:54,935 INFO L93 Difference]: Finished difference Result 744 states and 1110 transitions. [2020-12-23 11:21:54,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:21:54,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2020-12-23 11:21:54,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:21:54,939 INFO L225 Difference]: With dead ends: 744 [2020-12-23 11:21:54,940 INFO L226 Difference]: Without dead ends: 501 [2020-12-23 11:21:54,942 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 11:21:54,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2020-12-23 11:21:54,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 499. [2020-12-23 11:21:54,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-12-23 11:21:54,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 737 transitions. [2020-12-23 11:21:54,986 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 737 transitions. Word has length 111 [2020-12-23 11:21:54,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:21:54,987 INFO L481 AbstractCegarLoop]: Abstraction has 499 states and 737 transitions. [2020-12-23 11:21:54,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:21:54,987 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 737 transitions. [2020-12-23 11:21:54,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-23 11:21:54,991 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:21:54,991 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, 1] [2020-12-23 11:21:54,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 11:21:54,992 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:21:54,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:21:54,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1379929356, now seen corresponding path program 1 times [2020-12-23 11:21:54,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:21:54,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572000866] [2020-12-23 11:21:54,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:21:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:21:55,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:21:55,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572000866] [2020-12-23 11:21:55,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:21:55,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:21:55,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694039640] [2020-12-23 11:21:55,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:21:55,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:21:55,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:21:55,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:21:55,152 INFO L87 Difference]: Start difference. First operand 499 states and 737 transitions. Second operand 6 states. [2020-12-23 11:21:55,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:21:55,484 INFO L93 Difference]: Finished difference Result 1253 states and 1906 transitions. [2020-12-23 11:21:55,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:21:55,485 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2020-12-23 11:21:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:21:55,492 INFO L225 Difference]: With dead ends: 1253 [2020-12-23 11:21:55,492 INFO L226 Difference]: Without dead ends: 827 [2020-12-23 11:21:55,494 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 11:21:55,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2020-12-23 11:21:55,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 825. [2020-12-23 11:21:55,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-12-23 11:21:55,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1240 transitions. [2020-12-23 11:21:55,567 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1240 transitions. Word has length 112 [2020-12-23 11:21:55,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:21:55,568 INFO L481 AbstractCegarLoop]: Abstraction has 825 states and 1240 transitions. [2020-12-23 11:21:55,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:21:55,569 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1240 transitions. [2020-12-23 11:21:55,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-23 11:21:55,574 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:21:55,574 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, 1, 1] [2020-12-23 11:21:55,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 11:21:55,575 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:21:55,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:21:55,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1876446736, now seen corresponding path program 1 times [2020-12-23 11:21:55,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:21:55,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845788641] [2020-12-23 11:21:55,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:21:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:21:55,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:21:55,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845788641] [2020-12-23 11:21:55,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:21:55,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:21:55,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796812878] [2020-12-23 11:21:55,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:21:55,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:21:55,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:21:55,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:21:55,758 INFO L87 Difference]: Start difference. First operand 825 states and 1240 transitions. Second operand 6 states. [2020-12-23 11:21:56,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:21:56,160 INFO L93 Difference]: Finished difference Result 2251 states and 3445 transitions. [2020-12-23 11:21:56,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:21:56,161 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2020-12-23 11:21:56,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:21:56,171 INFO L225 Difference]: With dead ends: 2251 [2020-12-23 11:21:56,172 INFO L226 Difference]: Without dead ends: 1495 [2020-12-23 11:21:56,174 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 11:21:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2020-12-23 11:21:56,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1493. [2020-12-23 11:21:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1493 states. [2020-12-23 11:21:56,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2267 transitions. [2020-12-23 11:21:56,294 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2267 transitions. Word has length 113 [2020-12-23 11:21:56,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:21:56,294 INFO L481 AbstractCegarLoop]: Abstraction has 1493 states and 2267 transitions. [2020-12-23 11:21:56,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:21:56,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2267 transitions. [2020-12-23 11:21:56,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-23 11:21:56,301 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:21:56,301 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, 1, 1, 1] [2020-12-23 11:21:56,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 11:21:56,301 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:21:56,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:21:56,303 INFO L82 PathProgramCache]: Analyzing trace with hash 280743296, now seen corresponding path program 1 times [2020-12-23 11:21:56,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:21:56,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895224285] [2020-12-23 11:21:56,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:21:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:21:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:21:56,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895224285] [2020-12-23 11:21:56,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:21:56,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:21:56,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752157749] [2020-12-23 11:21:56,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:21:56,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:21:56,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:21:56,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:21:56,480 INFO L87 Difference]: Start difference. First operand 1493 states and 2267 transitions. Second operand 6 states. [2020-12-23 11:21:56,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:21:56,940 INFO L93 Difference]: Finished difference Result 4099 states and 6291 transitions. [2020-12-23 11:21:56,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:21:56,941 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2020-12-23 11:21:56,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:21:56,956 INFO L225 Difference]: With dead ends: 4099 [2020-12-23 11:21:56,956 INFO L226 Difference]: Without dead ends: 2687 [2020-12-23 11:21:56,959 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 11:21:56,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2020-12-23 11:21:57,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2685. [2020-12-23 11:21:57,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2685 states. [2020-12-23 11:21:57,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 4090 transitions. [2020-12-23 11:21:57,199 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 4090 transitions. Word has length 114 [2020-12-23 11:21:57,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:21:57,199 INFO L481 AbstractCegarLoop]: Abstraction has 2685 states and 4090 transitions. [2020-12-23 11:21:57,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:21:57,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 4090 transitions. [2020-12-23 11:21:57,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-23 11:21:57,202 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:21:57,203 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, 1, 1, 1, 1] [2020-12-23 11:21:57,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 11:21:57,203 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:21:57,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:21:57,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1479037516, now seen corresponding path program 1 times [2020-12-23 11:21:57,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:21:57,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782704427] [2020-12-23 11:21:57,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:21:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:21:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:21:57,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782704427] [2020-12-23 11:21:57,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:21:57,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:21:57,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980254850] [2020-12-23 11:21:57,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:21:57,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:21:57,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:21:57,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:21:57,373 INFO L87 Difference]: Start difference. First operand 2685 states and 4090 transitions. Second operand 5 states. [2020-12-23 11:21:57,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:21:57,918 INFO L93 Difference]: Finished difference Result 5305 states and 8113 transitions. [2020-12-23 11:21:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:21:57,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-12-23 11:21:57,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:21:57,937 INFO L225 Difference]: With dead ends: 5305 [2020-12-23 11:21:57,937 INFO L226 Difference]: Without dead ends: 2685 [2020-12-23 11:21:57,945 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 11:21:57,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2020-12-23 11:21:58,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2685. [2020-12-23 11:21:58,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2685 states. [2020-12-23 11:21:58,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 4057 transitions. [2020-12-23 11:21:58,168 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 4057 transitions. Word has length 115 [2020-12-23 11:21:58,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:21:58,168 INFO L481 AbstractCegarLoop]: Abstraction has 2685 states and 4057 transitions. [2020-12-23 11:21:58,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:21:58,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 4057 transitions. [2020-12-23 11:21:58,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 11:21:58,172 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:21:58,172 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, 1, 1, 1, 1, 1] [2020-12-23 11:21:58,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 11:21:58,173 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:21:58,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:21:58,173 INFO L82 PathProgramCache]: Analyzing trace with hash -313559600, now seen corresponding path program 1 times [2020-12-23 11:21:58,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:21:58,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559052773] [2020-12-23 11:21:58,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:21:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:21:58,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:21:58,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559052773] [2020-12-23 11:21:58,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:21:58,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:21:58,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051598259] [2020-12-23 11:21:58,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:21:58,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:21:58,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:21:58,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:21:58,325 INFO L87 Difference]: Start difference. First operand 2685 states and 4057 transitions. Second operand 5 states. [2020-12-23 11:21:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:21:58,773 INFO L93 Difference]: Finished difference Result 5309 states and 8052 transitions. [2020-12-23 11:21:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:21:58,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-12-23 11:21:58,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:21:58,788 INFO L225 Difference]: With dead ends: 5309 [2020-12-23 11:21:58,788 INFO L226 Difference]: Without dead ends: 2685 [2020-12-23 11:21:58,792 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 11:21:58,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2020-12-23 11:21:58,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2685. [2020-12-23 11:21:58,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2685 states. [2020-12-23 11:21:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 4024 transitions. [2020-12-23 11:21:59,002 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 4024 transitions. Word has length 116 [2020-12-23 11:21:59,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:21:59,004 INFO L481 AbstractCegarLoop]: Abstraction has 2685 states and 4024 transitions. [2020-12-23 11:21:59,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:21:59,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 4024 transitions. [2020-12-23 11:21:59,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 11:21:59,007 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:21:59,007 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, 1, 1, 1, 1, 1, 1] [2020-12-23 11:21:59,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 11:21:59,007 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:21:59,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:21:59,008 INFO L82 PathProgramCache]: Analyzing trace with hash 804140096, now seen corresponding path program 1 times [2020-12-23 11:21:59,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:21:59,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022062199] [2020-12-23 11:21:59,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:21:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:21:59,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:21:59,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022062199] [2020-12-23 11:21:59,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:21:59,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:21:59,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729802916] [2020-12-23 11:21:59,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:21:59,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:21:59,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:21:59,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:21:59,303 INFO L87 Difference]: Start difference. First operand 2685 states and 4024 transitions. Second operand 9 states. [2020-12-23 11:22:01,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:22:01,519 INFO L93 Difference]: Finished difference Result 20753 states and 31348 transitions. [2020-12-23 11:22:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 11:22:01,520 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2020-12-23 11:22:01,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:22:01,603 INFO L225 Difference]: With dead ends: 20753 [2020-12-23 11:22:01,603 INFO L226 Difference]: Without dead ends: 18351 [2020-12-23 11:22:01,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-12-23 11:22:01,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18351 states. [2020-12-23 11:22:02,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18351 to 3912. [2020-12-23 11:22:02,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3912 states. [2020-12-23 11:22:02,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3912 states to 3912 states and 5888 transitions. [2020-12-23 11:22:02,290 INFO L78 Accepts]: Start accepts. Automaton has 3912 states and 5888 transitions. Word has length 117 [2020-12-23 11:22:02,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:22:02,290 INFO L481 AbstractCegarLoop]: Abstraction has 3912 states and 5888 transitions. [2020-12-23 11:22:02,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:22:02,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3912 states and 5888 transitions. [2020-12-23 11:22:02,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 11:22:02,293 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:22:02,293 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, 1, 1, 1, 1, 1, 1] [2020-12-23 11:22:02,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 11:22:02,294 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:22:02,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:22:02,295 INFO L82 PathProgramCache]: Analyzing trace with hash 435341244, now seen corresponding path program 1 times [2020-12-23 11:22:02,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:22:02,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103888388] [2020-12-23 11:22:02,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:22:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:22:02,573 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 11:22:02,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103888388] [2020-12-23 11:22:02,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:22:02,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:22:02,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262622664] [2020-12-23 11:22:02,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:22:02,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:22:02,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:22:02,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:22:02,576 INFO L87 Difference]: Start difference. First operand 3912 states and 5888 transitions. Second operand 9 states. [2020-12-23 11:22:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:22:05,041 INFO L93 Difference]: Finished difference Result 21869 states and 33048 transitions. [2020-12-23 11:22:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 11:22:05,042 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2020-12-23 11:22:05,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:22:05,090 INFO L225 Difference]: With dead ends: 21869 [2020-12-23 11:22:05,091 INFO L226 Difference]: Without dead ends: 19467 [2020-12-23 11:22:05,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-12-23 11:22:05,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19467 states. [2020-12-23 11:22:06,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19467 to 6508. [2020-12-23 11:22:06,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6508 states. [2020-12-23 11:22:06,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6508 states to 6508 states and 9836 transitions. [2020-12-23 11:22:06,016 INFO L78 Accepts]: Start accepts. Automaton has 6508 states and 9836 transitions. Word has length 117 [2020-12-23 11:22:06,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:22:06,016 INFO L481 AbstractCegarLoop]: Abstraction has 6508 states and 9836 transitions. [2020-12-23 11:22:06,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:22:06,016 INFO L276 IsEmpty]: Start isEmpty. Operand 6508 states and 9836 transitions. [2020-12-23 11:22:06,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 11:22:06,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:22:06,019 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, 1, 1, 1, 1, 1, 1] [2020-12-23 11:22:06,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 11:22:06,019 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:22:06,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:22:06,020 INFO L82 PathProgramCache]: Analyzing trace with hash 433127764, now seen corresponding path program 1 times [2020-12-23 11:22:06,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:22:06,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015091892] [2020-12-23 11:22:06,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:22:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:22:06,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:22:06,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015091892] [2020-12-23 11:22:06,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:22:06,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:22:06,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612239235] [2020-12-23 11:22:06,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:22:06,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:22:06,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:22:06,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:22:06,226 INFO L87 Difference]: Start difference. First operand 6508 states and 9836 transitions. Second operand 9 states. [2020-12-23 11:22:09,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:22:09,154 INFO L93 Difference]: Finished difference Result 23019 states and 34800 transitions. [2020-12-23 11:22:09,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 11:22:09,155 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2020-12-23 11:22:09,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:22:09,198 INFO L225 Difference]: With dead ends: 23019 [2020-12-23 11:22:09,198 INFO L226 Difference]: Without dead ends: 20617 [2020-12-23 11:22:09,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-12-23 11:22:09,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20617 states. [2020-12-23 11:22:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20617 to 7818. [2020-12-23 11:22:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7818 states. [2020-12-23 11:22:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7818 states to 7818 states and 11828 transitions. [2020-12-23 11:22:10,272 INFO L78 Accepts]: Start accepts. Automaton has 7818 states and 11828 transitions. Word has length 117 [2020-12-23 11:22:10,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:22:10,273 INFO L481 AbstractCegarLoop]: Abstraction has 7818 states and 11828 transitions. [2020-12-23 11:22:10,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:22:10,273 INFO L276 IsEmpty]: Start isEmpty. Operand 7818 states and 11828 transitions. [2020-12-23 11:22:10,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 11:22:10,277 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:22:10,277 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, 1, 1, 1, 1, 1, 1] [2020-12-23 11:22:10,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 11:22:10,277 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:22:10,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:22:10,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1843774360, now seen corresponding path program 1 times [2020-12-23 11:22:10,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:22:10,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527123776] [2020-12-23 11:22:10,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:22:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:22:10,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:22:10,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527123776] [2020-12-23 11:22:10,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:22:10,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:22:10,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900419317] [2020-12-23 11:22:10,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:22:10,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:22:10,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:22:10,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:22:10,491 INFO L87 Difference]: Start difference. First operand 7818 states and 11828 transitions. Second operand 9 states. [2020-12-23 11:22:13,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:22:13,576 INFO L93 Difference]: Finished difference Result 23993 states and 36278 transitions. [2020-12-23 11:22:13,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 11:22:13,576 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2020-12-23 11:22:13,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:22:13,619 INFO L225 Difference]: With dead ends: 23993 [2020-12-23 11:22:13,620 INFO L226 Difference]: Without dead ends: 21591 [2020-12-23 11:22:13,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-12-23 11:22:13,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21591 states. [2020-12-23 11:22:14,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21591 to 9074. [2020-12-23 11:22:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9074 states. [2020-12-23 11:22:14,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9074 states to 9074 states and 13736 transitions. [2020-12-23 11:22:14,914 INFO L78 Accepts]: Start accepts. Automaton has 9074 states and 13736 transitions. Word has length 117 [2020-12-23 11:22:14,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:22:14,914 INFO L481 AbstractCegarLoop]: Abstraction has 9074 states and 13736 transitions. [2020-12-23 11:22:14,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:22:14,915 INFO L276 IsEmpty]: Start isEmpty. Operand 9074 states and 13736 transitions. [2020-12-23 11:22:14,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 11:22:14,920 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:22:14,920 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, 1, 1, 1, 1, 1, 1] [2020-12-23 11:22:14,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 11:22:14,920 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:22:14,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:22:14,921 INFO L82 PathProgramCache]: Analyzing trace with hash 202891668, now seen corresponding path program 1 times [2020-12-23 11:22:14,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:22:14,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936030394] [2020-12-23 11:22:14,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:22:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:22:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:22:15,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936030394] [2020-12-23 11:22:15,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:22:15,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:22:15,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226822669] [2020-12-23 11:22:15,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:22:15,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:22:15,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:22:15,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:22:15,093 INFO L87 Difference]: Start difference. First operand 9074 states and 13736 transitions. Second operand 9 states. [2020-12-23 11:22:18,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:22:18,387 INFO L93 Difference]: Finished difference Result 25071 states and 37916 transitions. [2020-12-23 11:22:18,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 11:22:18,388 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2020-12-23 11:22:18,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:22:18,419 INFO L225 Difference]: With dead ends: 25071 [2020-12-23 11:22:18,419 INFO L226 Difference]: Without dead ends: 22669 [2020-12-23 11:22:18,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-12-23 11:22:18,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22669 states. [2020-12-23 11:22:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22669 to 10314. [2020-12-23 11:22:20,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10314 states. [2020-12-23 11:22:20,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10314 states to 10314 states and 15616 transitions. [2020-12-23 11:22:20,243 INFO L78 Accepts]: Start accepts. Automaton has 10314 states and 15616 transitions. Word has length 117 [2020-12-23 11:22:20,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:22:20,243 INFO L481 AbstractCegarLoop]: Abstraction has 10314 states and 15616 transitions. [2020-12-23 11:22:20,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:22:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand 10314 states and 15616 transitions. [2020-12-23 11:22:20,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 11:22:20,247 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:22:20,248 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, 1, 1, 1, 1, 1, 1] [2020-12-23 11:22:20,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 11:22:20,248 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:22:20,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:22:20,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1380438633, now seen corresponding path program 1 times [2020-12-23 11:22:20,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:22:20,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198999927] [2020-12-23 11:22:20,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:22:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:22:20,327 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 11:22:20,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198999927] [2020-12-23 11:22:20,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:22:20,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:22:20,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503211767] [2020-12-23 11:22:20,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:22:20,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:22:20,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:22:20,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:22:20,329 INFO L87 Difference]: Start difference. First operand 10314 states and 15616 transitions. Second operand 3 states. [2020-12-23 11:22:22,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:22:22,654 INFO L93 Difference]: Finished difference Result 27502 states and 41714 transitions. [2020-12-23 11:22:22,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:22:22,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-12-23 11:22:22,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:22:22,673 INFO L225 Difference]: With dead ends: 27502 [2020-12-23 11:22:22,673 INFO L226 Difference]: Without dead ends: 17708 [2020-12-23 11:22:22,690 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 11:22:22,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17708 states. [2020-12-23 11:22:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17708 to 17706. [2020-12-23 11:22:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17706 states. [2020-12-23 11:22:25,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17706 states to 17706 states and 26624 transitions. [2020-12-23 11:22:25,225 INFO L78 Accepts]: Start accepts. Automaton has 17706 states and 26624 transitions. Word has length 117 [2020-12-23 11:22:25,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:22:25,225 INFO L481 AbstractCegarLoop]: Abstraction has 17706 states and 26624 transitions. [2020-12-23 11:22:25,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:22:25,225 INFO L276 IsEmpty]: Start isEmpty. Operand 17706 states and 26624 transitions. [2020-12-23 11:22:25,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 11:22:25,230 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:22:25,230 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, 1, 1, 1, 1, 1, 1] [2020-12-23 11:22:25,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 11:22:25,230 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:22:25,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:22:25,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1623562984, now seen corresponding path program 1 times [2020-12-23 11:22:25,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:22:25,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794228232] [2020-12-23 11:22:25,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:22:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:22:25,290 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 11:22:25,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794228232] [2020-12-23 11:22:25,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:22:25,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:22:25,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776704381] [2020-12-23 11:22:25,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:22:25,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:22:25,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:22:25,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:22:25,293 INFO L87 Difference]: Start difference. First operand 17706 states and 26624 transitions. Second operand 3 states. [2020-12-23 11:22:29,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:22:29,971 INFO L93 Difference]: Finished difference Result 50670 states and 76002 transitions. [2020-12-23 11:22:29,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:22:29,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-12-23 11:22:29,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:22:30,005 INFO L225 Difference]: With dead ends: 50670 [2020-12-23 11:22:30,006 INFO L226 Difference]: Without dead ends: 33484 [2020-12-23 11:22:30,024 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 11:22:30,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33484 states. [2020-12-23 11:22:35,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33484 to 33482. [2020-12-23 11:22:35,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33482 states. [2020-12-23 11:22:35,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33482 states to 33482 states and 49712 transitions. [2020-12-23 11:22:35,065 INFO L78 Accepts]: Start accepts. Automaton has 33482 states and 49712 transitions. Word has length 117 [2020-12-23 11:22:35,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:22:35,065 INFO L481 AbstractCegarLoop]: Abstraction has 33482 states and 49712 transitions. [2020-12-23 11:22:35,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:22:35,066 INFO L276 IsEmpty]: Start isEmpty. Operand 33482 states and 49712 transitions. [2020-12-23 11:22:35,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 11:22:35,070 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:22:35,071 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, 1, 1, 1, 1, 1, 1] [2020-12-23 11:22:35,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 11:22:35,071 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:22:35,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:22:35,072 INFO L82 PathProgramCache]: Analyzing trace with hash -475226918, now seen corresponding path program 1 times [2020-12-23 11:22:35,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:22:35,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588534839] [2020-12-23 11:22:35,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:22:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:22:35,368 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 11:22:35,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588534839] [2020-12-23 11:22:35,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:22:35,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:22:35,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392249173] [2020-12-23 11:22:35,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:22:35,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:22:35,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:22:35,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:22:35,370 INFO L87 Difference]: Start difference. First operand 33482 states and 49712 transitions. Second operand 9 states. [2020-12-23 11:22:46,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:22:46,659 INFO L93 Difference]: Finished difference Result 80393 states and 119542 transitions. [2020-12-23 11:22:46,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 11:22:46,660 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2020-12-23 11:22:46,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:22:46,728 INFO L225 Difference]: With dead ends: 80393 [2020-12-23 11:22:46,728 INFO L226 Difference]: Without dead ends: 73399 [2020-12-23 11:22:46,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-12-23 11:22:46,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73399 states. [2020-12-23 11:22:52,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73399 to 38202. [2020-12-23 11:22:52,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38202 states. [2020-12-23 11:22:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38202 states to 38202 states and 56720 transitions. [2020-12-23 11:22:52,987 INFO L78 Accepts]: Start accepts. Automaton has 38202 states and 56720 transitions. Word has length 117 [2020-12-23 11:22:52,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:22:52,988 INFO L481 AbstractCegarLoop]: Abstraction has 38202 states and 56720 transitions. [2020-12-23 11:22:52,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:22:52,988 INFO L276 IsEmpty]: Start isEmpty. Operand 38202 states and 56720 transitions. [2020-12-23 11:22:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-23 11:22:52,992 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:22:52,993 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, 1, 1, 1, 1, 1, 1] [2020-12-23 11:22:52,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 11:22:52,993 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:22:52,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:22:52,993 INFO L82 PathProgramCache]: Analyzing trace with hash -876282968, now seen corresponding path program 1 times [2020-12-23 11:22:52,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:22:52,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074652203] [2020-12-23 11:22:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:22:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:22:53,184 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 11:22:53,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074652203] [2020-12-23 11:22:53,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:22:53,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:22:53,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975284961] [2020-12-23 11:22:53,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:22:53,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:22:53,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:22:53,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:22:53,186 INFO L87 Difference]: Start difference. First operand 38202 states and 56720 transitions. Second operand 9 states. [2020-12-23 11:23:06,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:23:06,127 INFO L93 Difference]: Finished difference Result 86085 states and 128008 transitions. [2020-12-23 11:23:06,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 11:23:06,133 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2020-12-23 11:23:06,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:23:06,229 INFO L225 Difference]: With dead ends: 86085 [2020-12-23 11:23:06,229 INFO L226 Difference]: Without dead ends: 79091 [2020-12-23 11:23:06,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-12-23 11:23:06,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79091 states. [2020-12-23 11:23:13,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79091 to 42956. [2020-12-23 11:23:13,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42956 states. [2020-12-23 11:23:13,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42956 states to 42956 states and 63780 transitions. [2020-12-23 11:23:13,624 INFO L78 Accepts]: Start accepts. Automaton has 42956 states and 63780 transitions. Word has length 117 [2020-12-23 11:23:13,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:23:13,624 INFO L481 AbstractCegarLoop]: Abstraction has 42956 states and 63780 transitions. [2020-12-23 11:23:13,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:23:13,624 INFO L276 IsEmpty]: Start isEmpty. Operand 42956 states and 63780 transitions. [2020-12-23 11:23:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-23 11:23:13,629 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:23:13,629 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:23:13,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 11:23:13,630 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:23:13,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:23:13,630 INFO L82 PathProgramCache]: Analyzing trace with hash 154166167, now seen corresponding path program 1 times [2020-12-23 11:23:13,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:23:13,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677292286] [2020-12-23 11:23:13,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:23:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:23:13,744 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 11:23:13,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677292286] [2020-12-23 11:23:13,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:23:13,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:23:13,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106848125] [2020-12-23 11:23:13,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:23:13,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:23:13,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:23:13,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:23:13,746 INFO L87 Difference]: Start difference. First operand 42956 states and 63780 transitions. Second operand 5 states. [2020-12-23 11:23:26,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:23:26,979 INFO L93 Difference]: Finished difference Result 73510 states and 109117 transitions. [2020-12-23 11:23:26,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 11:23:26,979 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2020-12-23 11:23:26,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:23:27,059 INFO L225 Difference]: With dead ends: 73510 [2020-12-23 11:23:27,060 INFO L226 Difference]: Without dead ends: 73508 [2020-12-23 11:23:27,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:23:27,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73508 states. [2020-12-23 11:23:35,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73508 to 43212. [2020-12-23 11:23:35,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43212 states. [2020-12-23 11:23:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43212 states to 43212 states and 63892 transitions. [2020-12-23 11:23:35,148 INFO L78 Accepts]: Start accepts. Automaton has 43212 states and 63892 transitions. Word has length 118 [2020-12-23 11:23:35,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:23:35,148 INFO L481 AbstractCegarLoop]: Abstraction has 43212 states and 63892 transitions. [2020-12-23 11:23:35,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:23:35,149 INFO L276 IsEmpty]: Start isEmpty. Operand 43212 states and 63892 transitions. [2020-12-23 11:23:35,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-23 11:23:35,154 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:23:35,154 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:23:35,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 11:23:35,155 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:23:35,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:23:35,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1441850003, now seen corresponding path program 1 times [2020-12-23 11:23:35,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:23:35,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229096888] [2020-12-23 11:23:35,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:23:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:23:35,437 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 11:23:35,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229096888] [2020-12-23 11:23:35,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:23:35,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:23:35,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242637497] [2020-12-23 11:23:35,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:23:35,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:23:35,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:23:35,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:23:35,439 INFO L87 Difference]: Start difference. First operand 43212 states and 63892 transitions. Second operand 10 states. [2020-12-23 11:23:53,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:23:53,243 INFO L93 Difference]: Finished difference Result 130343 states and 192230 transitions. [2020-12-23 11:23:53,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 11:23:53,243 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 118 [2020-12-23 11:23:53,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:23:53,341 INFO L225 Difference]: With dead ends: 130343 [2020-12-23 11:23:53,342 INFO L226 Difference]: Without dead ends: 87361 [2020-12-23 11:23:53,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:23:53,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87361 states. [2020-12-23 11:24:02,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87361 to 43212. [2020-12-23 11:24:02,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43212 states. [2020-12-23 11:24:02,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43212 states to 43212 states and 63886 transitions. [2020-12-23 11:24:02,570 INFO L78 Accepts]: Start accepts. Automaton has 43212 states and 63886 transitions. Word has length 118 [2020-12-23 11:24:02,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:02,570 INFO L481 AbstractCegarLoop]: Abstraction has 43212 states and 63886 transitions. [2020-12-23 11:24:02,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:24:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 43212 states and 63886 transitions. [2020-12-23 11:24:02,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-23 11:24:02,575 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:02,576 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:24:02,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 11:24:02,576 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:02,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:02,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1556230175, now seen corresponding path program 1 times [2020-12-23 11:24:02,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:02,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007015499] [2020-12-23 11:24:02,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:02,867 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 11:24:02,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007015499] [2020-12-23 11:24:02,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:02,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:24:02,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411601961] [2020-12-23 11:24:02,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:24:02,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:02,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:24:02,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:24:02,870 INFO L87 Difference]: Start difference. First operand 43212 states and 63886 transitions. Second operand 10 states. [2020-12-23 11:24:18,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:18,239 INFO L93 Difference]: Finished difference Result 108259 states and 159753 transitions. [2020-12-23 11:24:18,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 11:24:18,239 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 119 [2020-12-23 11:24:18,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:18,316 INFO L225 Difference]: With dead ends: 108259 [2020-12-23 11:24:18,316 INFO L226 Difference]: Without dead ends: 65262 [2020-12-23 11:24:18,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:24:18,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65262 states. [2020-12-23 11:24:28,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65262 to 43212. [2020-12-23 11:24:28,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43212 states. [2020-12-23 11:24:28,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43212 states to 43212 states and 63883 transitions. [2020-12-23 11:24:28,087 INFO L78 Accepts]: Start accepts. Automaton has 43212 states and 63883 transitions. Word has length 119 [2020-12-23 11:24:28,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:28,088 INFO L481 AbstractCegarLoop]: Abstraction has 43212 states and 63883 transitions. [2020-12-23 11:24:28,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:24:28,088 INFO L276 IsEmpty]: Start isEmpty. Operand 43212 states and 63883 transitions. [2020-12-23 11:24:28,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-23 11:24:28,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:28,092 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:24:28,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 11:24:28,093 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:28,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:28,093 INFO L82 PathProgramCache]: Analyzing trace with hash 510358621, now seen corresponding path program 1 times [2020-12-23 11:24:28,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:28,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553999301] [2020-12-23 11:24:28,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:28,414 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 11:24:28,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553999301] [2020-12-23 11:24:28,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:28,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:24:28,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867719792] [2020-12-23 11:24:28,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:24:28,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:28,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:24:28,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:24:28,417 INFO L87 Difference]: Start difference. First operand 43212 states and 63883 transitions. Second operand 9 states. [2020-12-23 11:24:44,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:24:44,323 INFO L93 Difference]: Finished difference Result 107548 states and 158970 transitions. [2020-12-23 11:24:44,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 11:24:44,324 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 119 [2020-12-23 11:24:44,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:24:44,413 INFO L225 Difference]: With dead ends: 107548 [2020-12-23 11:24:44,413 INFO L226 Difference]: Without dead ends: 64686 [2020-12-23 11:24:44,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-12-23 11:24:44,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64686 states. [2020-12-23 11:24:54,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64686 to 43212. [2020-12-23 11:24:54,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43212 states. [2020-12-23 11:24:54,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43212 states to 43212 states and 63882 transitions. [2020-12-23 11:24:54,682 INFO L78 Accepts]: Start accepts. Automaton has 43212 states and 63882 transitions. Word has length 119 [2020-12-23 11:24:54,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:24:54,682 INFO L481 AbstractCegarLoop]: Abstraction has 43212 states and 63882 transitions. [2020-12-23 11:24:54,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:24:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand 43212 states and 63882 transitions. [2020-12-23 11:24:54,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-12-23 11:24:54,685 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:24:54,686 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:24:54,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 11:24:54,686 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:24:54,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:24:54,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1770166343, now seen corresponding path program 1 times [2020-12-23 11:24:54,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:24:54,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879063967] [2020-12-23 11:24:54,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:24:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:24:55,069 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 11:24:55,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879063967] [2020-12-23 11:24:55,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:24:55,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:24:55,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582873902] [2020-12-23 11:24:55,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:24:55,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:24:55,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:24:55,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:24:55,072 INFO L87 Difference]: Start difference. First operand 43212 states and 63882 transitions. Second operand 10 states. [2020-12-23 11:25:18,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:25:18,174 INFO L93 Difference]: Finished difference Result 130173 states and 191960 transitions. [2020-12-23 11:25:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 11:25:18,176 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 120 [2020-12-23 11:25:18,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:25:18,281 INFO L225 Difference]: With dead ends: 130173 [2020-12-23 11:25:18,281 INFO L226 Difference]: Without dead ends: 87346 [2020-12-23 11:25:18,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:25:18,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87346 states. [2020-12-23 11:25:29,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87346 to 43212. [2020-12-23 11:25:29,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43212 states. [2020-12-23 11:25:29,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43212 states to 43212 states and 63873 transitions. [2020-12-23 11:25:29,532 INFO L78 Accepts]: Start accepts. Automaton has 43212 states and 63873 transitions. Word has length 120 [2020-12-23 11:25:29,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:25:29,532 INFO L481 AbstractCegarLoop]: Abstraction has 43212 states and 63873 transitions. [2020-12-23 11:25:29,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:25:29,533 INFO L276 IsEmpty]: Start isEmpty. Operand 43212 states and 63873 transitions. [2020-12-23 11:25:29,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-23 11:25:29,536 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:25:29,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:25:29,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 11:25:29,536 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:25:29,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:25:29,537 INFO L82 PathProgramCache]: Analyzing trace with hash -863997056, now seen corresponding path program 1 times [2020-12-23 11:25:29,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:25:29,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309439490] [2020-12-23 11:25:29,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:25:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:25:29,800 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 11:25:29,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309439490] [2020-12-23 11:25:29,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:25:29,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:25:29,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141995256] [2020-12-23 11:25:29,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:25:29,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:25:29,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:25:29,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:25:29,802 INFO L87 Difference]: Start difference. First operand 43212 states and 63873 transitions. Second operand 10 states.