/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 21:07:12,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 21:07:12,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 21:07:12,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 21:07:12,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 21:07:12,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 21:07:12,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 21:07:12,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 21:07:12,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 21:07:12,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 21:07:12,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 21:07:12,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 21:07:12,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 21:07:12,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 21:07:12,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 21:07:12,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 21:07:12,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 21:07:12,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 21:07:12,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 21:07:12,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 21:07:12,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 21:07:12,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 21:07:12,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 21:07:12,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 21:07:12,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 21:07:12,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 21:07:12,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 21:07:12,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 21:07:12,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 21:07:12,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 21:07:12,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 21:07:12,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 21:07:12,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 21:07:12,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 21:07:12,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 21:07:12,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 21:07:12,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 21:07:12,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 21:07:12,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 21:07:12,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 21:07:12,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 21:07:12,801 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 21:07:12,833 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 21:07:12,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 21:07:12,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 21:07:12,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 21:07:12,837 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 21:07:12,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 21:07:12,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 21:07:12,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 21:07:12,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 21:07:12,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 21:07:12,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 21:07:12,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 21:07:12,840 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 21:07:12,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 21:07:12,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 21:07:12,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 21:07:12,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 21:07:12,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 21:07:12,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 21:07:12,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 21:07:12,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 21:07:12,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 21:07:12,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 21:07:12,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 21:07:12,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 21:07:12,844 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 21:07:13,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 21:07:13,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 21:07:13,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 21:07:13,385 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 21:07:13,386 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 21:07:13,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2021-01-06 21:07:13,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e5bc3274f/da6a6439eedd4b8fa96ae75cd51a4463/FLAG7b8ba67ce [2021-01-06 21:07:14,283 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 21:07:14,290 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2021-01-06 21:07:14,312 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e5bc3274f/da6a6439eedd4b8fa96ae75cd51a4463/FLAG7b8ba67ce [2021-01-06 21:07:14,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e5bc3274f/da6a6439eedd4b8fa96ae75cd51a4463 [2021-01-06 21:07:14,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 21:07:14,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 21:07:14,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 21:07:14,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 21:07:14,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 21:07:14,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 09:07:14" (1/1) ... [2021-01-06 21:07:14,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cc674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:14, skipping insertion in model container [2021-01-06 21:07:14,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 09:07:14" (1/1) ... [2021-01-06 21:07:14,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 21:07:14,720 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_13334~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_13461~0,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[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_13668_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] 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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_13688~0,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,] [2021-01-06 21:07:15,130 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[8839,8852] 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[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_13668_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[~send1~0,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_13583~0,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[~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[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2021-01-06 21:07:15,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 21:07:15,336 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_13334~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_13461~0,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[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_13668_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] 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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_13688~0,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,] [2021-01-06 21:07:15,490 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[8839,8852] 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[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~2,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_13668_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[~send1~0,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_13583~0,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[~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[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2021-01-06 21:07:15,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 21:07:15,572 INFO L208 MainTranslator]: Completed translation [2021-01-06 21:07:15,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15 WrapperNode [2021-01-06 21:07:15,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 21:07:15,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 21:07:15,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 21:07:15,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 21:07:15,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15" (1/1) ... [2021-01-06 21:07:15,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15" (1/1) ... [2021-01-06 21:07:15,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 21:07:15,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 21:07:15,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 21:07:15,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 21:07:15,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15" (1/1) ... [2021-01-06 21:07:15,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15" (1/1) ... [2021-01-06 21:07:15,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15" (1/1) ... [2021-01-06 21:07:15,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15" (1/1) ... [2021-01-06 21:07:15,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15" (1/1) ... [2021-01-06 21:07:15,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15" (1/1) ... [2021-01-06 21:07:15,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15" (1/1) ... [2021-01-06 21:07:15,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 21:07:15,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 21:07:15,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 21:07:15,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 21:07:15,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15" (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 [2021-01-06 21:07:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 21:07:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 21:07:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 21:07:15,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 21:07:17,027 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 21:07:17,027 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-06 21:07:17,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 09:07:17 BoogieIcfgContainer [2021-01-06 21:07:17,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 21:07:17,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 21:07:17,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 21:07:17,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 21:07:17,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 09:07:14" (1/3) ... [2021-01-06 21:07:17,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d345853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 09:07:17, skipping insertion in model container [2021-01-06 21:07:17,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:07:15" (2/3) ... [2021-01-06 21:07:17,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d345853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 09:07:17, skipping insertion in model container [2021-01-06 21:07:17,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 09:07:17" (3/3) ... [2021-01-06 21:07:17,040 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2021-01-06 21:07:17,047 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 21:07:17,052 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 21:07:17,072 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 21:07:17,100 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 21:07:17,101 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 21:07:17,101 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 21:07:17,101 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 21:07:17,101 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 21:07:17,101 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 21:07:17,102 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 21:07:17,102 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 21:07:17,122 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2021-01-06 21:07:17,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-01-06 21:07:17,132 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:17,133 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] [2021-01-06 21:07:17,134 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:17,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:17,140 INFO L82 PathProgramCache]: Analyzing trace with hash 2136906399, now seen corresponding path program 1 times [2021-01-06 21:07:17,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:17,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598450903] [2021-01-06 21:07:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:17,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:17,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598450903] [2021-01-06 21:07:17,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:17,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:07:17,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036047710] [2021-01-06 21:07:17,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:07:17,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:17,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:07:17,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:07:17,778 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 3 states. [2021-01-06 21:07:17,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:17,949 INFO L93 Difference]: Finished difference Result 348 states and 580 transitions. [2021-01-06 21:07:17,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:07:17,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2021-01-06 21:07:17,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:17,970 INFO L225 Difference]: With dead ends: 348 [2021-01-06 21:07:17,971 INFO L226 Difference]: Without dead ends: 268 [2021-01-06 21:07:17,975 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 [2021-01-06 21:07:18,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-01-06 21:07:18,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 266. [2021-01-06 21:07:18,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-01-06 21:07:18,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 383 transitions. [2021-01-06 21:07:18,078 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 383 transitions. Word has length 91 [2021-01-06 21:07:18,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:18,081 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 383 transitions. [2021-01-06 21:07:18,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:07:18,082 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 383 transitions. [2021-01-06 21:07:18,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-01-06 21:07:18,090 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:18,091 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] [2021-01-06 21:07:18,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 21:07:18,093 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:18,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:18,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1446649810, now seen corresponding path program 1 times [2021-01-06 21:07:18,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:18,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587424518] [2021-01-06 21:07:18,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:18,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587424518] [2021-01-06 21:07:18,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:18,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 21:07:18,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700935460] [2021-01-06 21:07:18,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 21:07:18,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:18,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 21:07:18,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 21:07:18,390 INFO L87 Difference]: Start difference. First operand 266 states and 383 transitions. Second operand 5 states. [2021-01-06 21:07:18,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:18,833 INFO L93 Difference]: Finished difference Result 465 states and 693 transitions. [2021-01-06 21:07:18,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:07:18,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2021-01-06 21:07:18,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:18,844 INFO L225 Difference]: With dead ends: 465 [2021-01-06 21:07:18,844 INFO L226 Difference]: Without dead ends: 266 [2021-01-06 21:07:18,852 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 [2021-01-06 21:07:18,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-01-06 21:07:18,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-01-06 21:07:18,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-01-06 21:07:18,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2021-01-06 21:07:18,922 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 93 [2021-01-06 21:07:18,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:18,925 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2021-01-06 21:07:18,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 21:07:18,925 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2021-01-06 21:07:18,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-01-06 21:07:18,931 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:18,931 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] [2021-01-06 21:07:18,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 21:07:18,932 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:18,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:18,937 INFO L82 PathProgramCache]: Analyzing trace with hash -274547025, now seen corresponding path program 1 times [2021-01-06 21:07:18,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:18,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115549585] [2021-01-06 21:07:18,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:19,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:19,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115549585] [2021-01-06 21:07:19,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:19,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 21:07:19,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644024789] [2021-01-06 21:07:19,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 21:07:19,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:19,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 21:07:19,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 21:07:19,121 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 6 states. [2021-01-06 21:07:19,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:19,488 INFO L93 Difference]: Finished difference Result 666 states and 994 transitions. [2021-01-06 21:07:19,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:07:19,488 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2021-01-06 21:07:19,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:19,491 INFO L225 Difference]: With dead ends: 666 [2021-01-06 21:07:19,492 INFO L226 Difference]: Without dead ends: 447 [2021-01-06 21:07:19,493 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 [2021-01-06 21:07:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-01-06 21:07:19,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 445. [2021-01-06 21:07:19,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2021-01-06 21:07:19,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 658 transitions. [2021-01-06 21:07:19,530 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 658 transitions. Word has length 94 [2021-01-06 21:07:19,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:19,530 INFO L481 AbstractCegarLoop]: Abstraction has 445 states and 658 transitions. [2021-01-06 21:07:19,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 21:07:19,531 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 658 transitions. [2021-01-06 21:07:19,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-01-06 21:07:19,533 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:19,534 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] [2021-01-06 21:07:19,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 21:07:19,534 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:19,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:19,535 INFO L82 PathProgramCache]: Analyzing trace with hash 163573954, now seen corresponding path program 1 times [2021-01-06 21:07:19,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:19,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690074764] [2021-01-06 21:07:19,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:19,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:19,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690074764] [2021-01-06 21:07:19,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:19,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 21:07:19,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552613959] [2021-01-06 21:07:19,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 21:07:19,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:19,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 21:07:19,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 21:07:19,710 INFO L87 Difference]: Start difference. First operand 445 states and 658 transitions. Second operand 6 states. [2021-01-06 21:07:20,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:20,059 INFO L93 Difference]: Finished difference Result 1115 states and 1694 transitions. [2021-01-06 21:07:20,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:07:20,060 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2021-01-06 21:07:20,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:20,065 INFO L225 Difference]: With dead ends: 1115 [2021-01-06 21:07:20,066 INFO L226 Difference]: Without dead ends: 733 [2021-01-06 21:07:20,068 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 [2021-01-06 21:07:20,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2021-01-06 21:07:20,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 731. [2021-01-06 21:07:20,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2021-01-06 21:07:20,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1097 transitions. [2021-01-06 21:07:20,127 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1097 transitions. Word has length 95 [2021-01-06 21:07:20,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:20,128 INFO L481 AbstractCegarLoop]: Abstraction has 731 states and 1097 transitions. [2021-01-06 21:07:20,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 21:07:20,128 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1097 transitions. [2021-01-06 21:07:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-01-06 21:07:20,130 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:20,131 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] [2021-01-06 21:07:20,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 21:07:20,131 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:20,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:20,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1684150543, now seen corresponding path program 1 times [2021-01-06 21:07:20,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:20,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649622781] [2021-01-06 21:07:20,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:20,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649622781] [2021-01-06 21:07:20,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:20,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 21:07:20,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82283509] [2021-01-06 21:07:20,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 21:07:20,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:20,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 21:07:20,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 21:07:20,311 INFO L87 Difference]: Start difference. First operand 731 states and 1097 transitions. Second operand 6 states. [2021-01-06 21:07:20,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:20,673 INFO L93 Difference]: Finished difference Result 1993 states and 3041 transitions. [2021-01-06 21:07:20,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:07:20,674 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2021-01-06 21:07:20,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:20,682 INFO L225 Difference]: With dead ends: 1993 [2021-01-06 21:07:20,682 INFO L226 Difference]: Without dead ends: 1321 [2021-01-06 21:07:20,684 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 [2021-01-06 21:07:20,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2021-01-06 21:07:20,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1319. [2021-01-06 21:07:20,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2021-01-06 21:07:20,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1996 transitions. [2021-01-06 21:07:20,784 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1996 transitions. Word has length 96 [2021-01-06 21:07:20,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:20,785 INFO L481 AbstractCegarLoop]: Abstraction has 1319 states and 1996 transitions. [2021-01-06 21:07:20,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 21:07:20,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1996 transitions. [2021-01-06 21:07:20,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-01-06 21:07:20,787 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:20,787 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] [2021-01-06 21:07:20,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 21:07:20,787 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:20,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:20,788 INFO L82 PathProgramCache]: Analyzing trace with hash 2000083030, now seen corresponding path program 1 times [2021-01-06 21:07:20,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:20,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827896885] [2021-01-06 21:07:20,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:20,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:20,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827896885] [2021-01-06 21:07:20,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:20,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 21:07:20,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672720363] [2021-01-06 21:07:20,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 21:07:20,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:20,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 21:07:20,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 21:07:20,895 INFO L87 Difference]: Start difference. First operand 1319 states and 1996 transitions. Second operand 5 states. [2021-01-06 21:07:21,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:21,171 INFO L93 Difference]: Finished difference Result 2583 states and 3935 transitions. [2021-01-06 21:07:21,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:07:21,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2021-01-06 21:07:21,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:21,179 INFO L225 Difference]: With dead ends: 2583 [2021-01-06 21:07:21,179 INFO L226 Difference]: Without dead ends: 1319 [2021-01-06 21:07:21,182 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 [2021-01-06 21:07:21,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2021-01-06 21:07:21,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2021-01-06 21:07:21,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2021-01-06 21:07:21,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1979 transitions. [2021-01-06 21:07:21,293 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1979 transitions. Word has length 97 [2021-01-06 21:07:21,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:21,293 INFO L481 AbstractCegarLoop]: Abstraction has 1319 states and 1979 transitions. [2021-01-06 21:07:21,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 21:07:21,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1979 transitions. [2021-01-06 21:07:21,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-01-06 21:07:21,295 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:21,295 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] [2021-01-06 21:07:21,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 21:07:21,296 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:21,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:21,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1009509731, now seen corresponding path program 1 times [2021-01-06 21:07:21,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:21,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426562553] [2021-01-06 21:07:21,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:21,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:21,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426562553] [2021-01-06 21:07:21,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:21,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 21:07:21,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206042748] [2021-01-06 21:07:21,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 21:07:21,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:21,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 21:07:21,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 21:07:21,421 INFO L87 Difference]: Start difference. First operand 1319 states and 1979 transitions. Second operand 5 states. [2021-01-06 21:07:21,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:21,747 INFO L93 Difference]: Finished difference Result 2587 states and 3906 transitions. [2021-01-06 21:07:21,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:07:21,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2021-01-06 21:07:21,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:21,757 INFO L225 Difference]: With dead ends: 2587 [2021-01-06 21:07:21,757 INFO L226 Difference]: Without dead ends: 1319 [2021-01-06 21:07:21,761 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 [2021-01-06 21:07:21,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2021-01-06 21:07:21,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2021-01-06 21:07:21,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2021-01-06 21:07:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1962 transitions. [2021-01-06 21:07:21,878 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1962 transitions. Word has length 98 [2021-01-06 21:07:21,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:21,879 INFO L481 AbstractCegarLoop]: Abstraction has 1319 states and 1962 transitions. [2021-01-06 21:07:21,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 21:07:21,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1962 transitions. [2021-01-06 21:07:21,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-01-06 21:07:21,884 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:21,884 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] [2021-01-06 21:07:21,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 21:07:21,885 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:21,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:21,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1550836458, now seen corresponding path program 1 times [2021-01-06 21:07:21,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:21,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294656220] [2021-01-06 21:07:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:22,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:22,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294656220] [2021-01-06 21:07:22,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:22,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 21:07:22,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699516348] [2021-01-06 21:07:22,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 21:07:22,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:22,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 21:07:22,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-06 21:07:22,145 INFO L87 Difference]: Start difference. First operand 1319 states and 1962 transitions. Second operand 8 states. [2021-01-06 21:07:23,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:23,161 INFO L93 Difference]: Finished difference Result 8185 states and 12325 transitions. [2021-01-06 21:07:23,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 21:07:23,162 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2021-01-06 21:07:23,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:23,198 INFO L225 Difference]: With dead ends: 8185 [2021-01-06 21:07:23,199 INFO L226 Difference]: Without dead ends: 7135 [2021-01-06 21:07:23,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-01-06 21:07:23,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7135 states. [2021-01-06 21:07:23,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7135 to 1854. [2021-01-06 21:07:23,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2021-01-06 21:07:23,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2774 transitions. [2021-01-06 21:07:23,509 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2774 transitions. Word has length 99 [2021-01-06 21:07:23,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:23,510 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2774 transitions. [2021-01-06 21:07:23,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 21:07:23,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2774 transitions. [2021-01-06 21:07:23,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-01-06 21:07:23,513 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:23,513 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] [2021-01-06 21:07:23,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 21:07:23,513 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:23,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:23,514 INFO L82 PathProgramCache]: Analyzing trace with hash -767584266, now seen corresponding path program 1 times [2021-01-06 21:07:23,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:23,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715030936] [2021-01-06 21:07:23,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:23,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715030936] [2021-01-06 21:07:23,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:23,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 21:07:23,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419232591] [2021-01-06 21:07:23,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 21:07:23,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:23,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 21:07:23,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-06 21:07:23,807 INFO L87 Difference]: Start difference. First operand 1854 states and 2774 transitions. Second operand 8 states. [2021-01-06 21:07:25,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:25,123 INFO L93 Difference]: Finished difference Result 8723 states and 13145 transitions. [2021-01-06 21:07:25,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 21:07:25,124 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2021-01-06 21:07:25,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:25,163 INFO L225 Difference]: With dead ends: 8723 [2021-01-06 21:07:25,163 INFO L226 Difference]: Without dead ends: 7673 [2021-01-06 21:07:25,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-01-06 21:07:25,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7673 states. [2021-01-06 21:07:25,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7673 to 3100. [2021-01-06 21:07:25,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3100 states. [2021-01-06 21:07:25,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3100 states to 3100 states and 4670 transitions. [2021-01-06 21:07:25,597 INFO L78 Accepts]: Start accepts. Automaton has 3100 states and 4670 transitions. Word has length 99 [2021-01-06 21:07:25,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:25,598 INFO L481 AbstractCegarLoop]: Abstraction has 3100 states and 4670 transitions. [2021-01-06 21:07:25,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 21:07:25,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3100 states and 4670 transitions. [2021-01-06 21:07:25,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-01-06 21:07:25,600 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:25,600 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] [2021-01-06 21:07:25,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 21:07:25,601 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:25,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:25,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1762556042, now seen corresponding path program 1 times [2021-01-06 21:07:25,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:25,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156925325] [2021-01-06 21:07:25,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:25,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156925325] [2021-01-06 21:07:25,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:25,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 21:07:25,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230739152] [2021-01-06 21:07:25,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 21:07:25,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:25,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 21:07:25,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-06 21:07:25,825 INFO L87 Difference]: Start difference. First operand 3100 states and 4670 transitions. Second operand 8 states. [2021-01-06 21:07:27,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:27,296 INFO L93 Difference]: Finished difference Result 9157 states and 13803 transitions. [2021-01-06 21:07:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 21:07:27,297 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2021-01-06 21:07:27,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:27,352 INFO L225 Difference]: With dead ends: 9157 [2021-01-06 21:07:27,353 INFO L226 Difference]: Without dead ends: 8107 [2021-01-06 21:07:27,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-01-06 21:07:27,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8107 states. [2021-01-06 21:07:27,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8107 to 3664. [2021-01-06 21:07:27,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3664 states. [2021-01-06 21:07:27,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 5526 transitions. [2021-01-06 21:07:27,983 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 5526 transitions. Word has length 99 [2021-01-06 21:07:27,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:27,984 INFO L481 AbstractCegarLoop]: Abstraction has 3664 states and 5526 transitions. [2021-01-06 21:07:27,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 21:07:27,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 5526 transitions. [2021-01-06 21:07:27,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-01-06 21:07:27,986 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:27,986 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] [2021-01-06 21:07:27,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 21:07:27,987 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:27,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:27,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1421062594, now seen corresponding path program 1 times [2021-01-06 21:07:27,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:27,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457217059] [2021-01-06 21:07:27,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:28,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457217059] [2021-01-06 21:07:28,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:28,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 21:07:28,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374982976] [2021-01-06 21:07:28,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 21:07:28,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:28,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 21:07:28,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-01-06 21:07:28,152 INFO L87 Difference]: Start difference. First operand 3664 states and 5526 transitions. Second operand 8 states. [2021-01-06 21:07:29,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:29,558 INFO L93 Difference]: Finished difference Result 9623 states and 14509 transitions. [2021-01-06 21:07:29,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 21:07:29,559 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2021-01-06 21:07:29,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:29,578 INFO L225 Difference]: With dead ends: 9623 [2021-01-06 21:07:29,579 INFO L226 Difference]: Without dead ends: 8573 [2021-01-06 21:07:29,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-01-06 21:07:29,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8573 states. [2021-01-06 21:07:30,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8573 to 4212. [2021-01-06 21:07:30,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4212 states. [2021-01-06 21:07:30,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4212 states to 4212 states and 6354 transitions. [2021-01-06 21:07:30,340 INFO L78 Accepts]: Start accepts. Automaton has 4212 states and 6354 transitions. Word has length 99 [2021-01-06 21:07:30,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:30,341 INFO L481 AbstractCegarLoop]: Abstraction has 4212 states and 6354 transitions. [2021-01-06 21:07:30,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 21:07:30,341 INFO L276 IsEmpty]: Start isEmpty. Operand 4212 states and 6354 transitions. [2021-01-06 21:07:30,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-01-06 21:07:30,343 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:30,344 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] [2021-01-06 21:07:30,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 21:07:30,344 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:30,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:30,345 INFO L82 PathProgramCache]: Analyzing trace with hash 515850879, now seen corresponding path program 1 times [2021-01-06 21:07:30,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:30,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746426749] [2021-01-06 21:07:30,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:30,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:30,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746426749] [2021-01-06 21:07:30,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:30,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:07:30,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803817350] [2021-01-06 21:07:30,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:07:30,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:30,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:07:30,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:07:30,415 INFO L87 Difference]: Start difference. First operand 4212 states and 6354 transitions. Second operand 3 states. [2021-01-06 21:07:31,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:31,394 INFO L93 Difference]: Finished difference Result 10664 states and 16140 transitions. [2021-01-06 21:07:31,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:07:31,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2021-01-06 21:07:31,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:31,411 INFO L225 Difference]: With dead ends: 10664 [2021-01-06 21:07:31,411 INFO L226 Difference]: Without dead ends: 6914 [2021-01-06 21:07:31,417 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 [2021-01-06 21:07:31,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6914 states. [2021-01-06 21:07:32,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6914 to 6912. [2021-01-06 21:07:32,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6912 states. [2021-01-06 21:07:32,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6912 states to 6912 states and 10358 transitions. [2021-01-06 21:07:32,665 INFO L78 Accepts]: Start accepts. Automaton has 6912 states and 10358 transitions. Word has length 99 [2021-01-06 21:07:32,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:32,665 INFO L481 AbstractCegarLoop]: Abstraction has 6912 states and 10358 transitions. [2021-01-06 21:07:32,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:07:32,666 INFO L276 IsEmpty]: Start isEmpty. Operand 6912 states and 10358 transitions. [2021-01-06 21:07:32,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-01-06 21:07:32,668 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:32,668 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] [2021-01-06 21:07:32,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 21:07:32,669 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:32,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:32,669 INFO L82 PathProgramCache]: Analyzing trace with hash 272726528, now seen corresponding path program 1 times [2021-01-06 21:07:32,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:32,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329698756] [2021-01-06 21:07:32,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:32,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:32,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329698756] [2021-01-06 21:07:32,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:32,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:07:32,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335855089] [2021-01-06 21:07:32,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:07:32,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:32,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:07:32,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:07:32,725 INFO L87 Difference]: Start difference. First operand 6912 states and 10358 transitions. Second operand 3 states. [2021-01-06 21:07:34,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:34,100 INFO L93 Difference]: Finished difference Result 19212 states and 28728 transitions. [2021-01-06 21:07:34,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:07:34,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2021-01-06 21:07:34,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:34,130 INFO L225 Difference]: With dead ends: 19212 [2021-01-06 21:07:34,130 INFO L226 Difference]: Without dead ends: 12762 [2021-01-06 21:07:34,142 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 [2021-01-06 21:07:34,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12762 states. [2021-01-06 21:07:35,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12762 to 12760. [2021-01-06 21:07:35,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12760 states. [2021-01-06 21:07:35,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12760 states to 12760 states and 18862 transitions. [2021-01-06 21:07:35,715 INFO L78 Accepts]: Start accepts. Automaton has 12760 states and 18862 transitions. Word has length 99 [2021-01-06 21:07:35,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:35,715 INFO L481 AbstractCegarLoop]: Abstraction has 12760 states and 18862 transitions. [2021-01-06 21:07:35,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:07:35,716 INFO L276 IsEmpty]: Start isEmpty. Operand 12760 states and 18862 transitions. [2021-01-06 21:07:35,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-01-06 21:07:35,722 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:35,722 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] [2021-01-06 21:07:35,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 21:07:35,723 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:35,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:35,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2090877270, now seen corresponding path program 1 times [2021-01-06 21:07:35,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:35,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288641050] [2021-01-06 21:07:35,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:35,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288641050] [2021-01-06 21:07:35,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:35,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 21:07:35,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346479752] [2021-01-06 21:07:35,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 21:07:35,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:35,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 21:07:35,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-06 21:07:35,959 INFO L87 Difference]: Start difference. First operand 12760 states and 18862 transitions. Second operand 8 states. [2021-01-06 21:07:39,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:39,530 INFO L93 Difference]: Finished difference Result 30545 states and 45229 transitions. [2021-01-06 21:07:39,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 21:07:39,530 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2021-01-06 21:07:39,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:39,589 INFO L225 Difference]: With dead ends: 30545 [2021-01-06 21:07:39,589 INFO L226 Difference]: Without dead ends: 27503 [2021-01-06 21:07:39,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-01-06 21:07:39,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27503 states. [2021-01-06 21:07:42,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27503 to 14850. [2021-01-06 21:07:42,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14850 states. [2021-01-06 21:07:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14850 states to 14850 states and 21954 transitions. [2021-01-06 21:07:42,038 INFO L78 Accepts]: Start accepts. Automaton has 14850 states and 21954 transitions. Word has length 99 [2021-01-06 21:07:42,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:42,038 INFO L481 AbstractCegarLoop]: Abstraction has 14850 states and 21954 transitions. [2021-01-06 21:07:42,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 21:07:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand 14850 states and 21954 transitions. [2021-01-06 21:07:42,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-01-06 21:07:42,047 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:42,047 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] [2021-01-06 21:07:42,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 21:07:42,047 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:42,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:42,048 INFO L82 PathProgramCache]: Analyzing trace with hash -435632798, now seen corresponding path program 1 times [2021-01-06 21:07:42,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:42,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436810141] [2021-01-06 21:07:42,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:42,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:42,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436810141] [2021-01-06 21:07:42,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:42,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 21:07:42,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726271544] [2021-01-06 21:07:42,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 21:07:42,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:42,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 21:07:42,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-06 21:07:42,204 INFO L87 Difference]: Start difference. First operand 14850 states and 21954 transitions. Second operand 8 states. [2021-01-06 21:07:46,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:46,145 INFO L93 Difference]: Finished difference Result 32693 states and 48417 transitions. [2021-01-06 21:07:46,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 21:07:46,146 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2021-01-06 21:07:46,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:46,194 INFO L225 Difference]: With dead ends: 32693 [2021-01-06 21:07:46,194 INFO L226 Difference]: Without dead ends: 29651 [2021-01-06 21:07:46,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-01-06 21:07:46,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29651 states. [2021-01-06 21:07:48,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29651 to 16950. [2021-01-06 21:07:48,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16950 states. [2021-01-06 21:07:48,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16950 states to 16950 states and 25062 transitions. [2021-01-06 21:07:48,905 INFO L78 Accepts]: Start accepts. Automaton has 16950 states and 25062 transitions. Word has length 99 [2021-01-06 21:07:48,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:48,905 INFO L481 AbstractCegarLoop]: Abstraction has 16950 states and 25062 transitions. [2021-01-06 21:07:48,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 21:07:48,905 INFO L276 IsEmpty]: Start isEmpty. Operand 16950 states and 25062 transitions. [2021-01-06 21:07:48,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-01-06 21:07:48,908 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:48,908 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] [2021-01-06 21:07:48,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 21:07:48,908 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:48,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:48,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1190401161, now seen corresponding path program 1 times [2021-01-06 21:07:48,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:48,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085703273] [2021-01-06 21:07:48,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:49,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085703273] [2021-01-06 21:07:49,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:49,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 21:07:49,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142861558] [2021-01-06 21:07:49,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 21:07:49,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:49,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 21:07:49,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 21:07:49,016 INFO L87 Difference]: Start difference. First operand 16950 states and 25062 transitions. Second operand 5 states. [2021-01-06 21:07:53,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:07:53,202 INFO L93 Difference]: Finished difference Result 28684 states and 42395 transitions. [2021-01-06 21:07:53,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 21:07:53,203 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2021-01-06 21:07:53,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:07:53,238 INFO L225 Difference]: With dead ends: 28684 [2021-01-06 21:07:53,238 INFO L226 Difference]: Without dead ends: 28682 [2021-01-06 21:07:53,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 21:07:53,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28682 states. [2021-01-06 21:07:55,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28682 to 17062. [2021-01-06 21:07:55,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17062 states. [2021-01-06 21:07:55,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17062 states to 17062 states and 25110 transitions. [2021-01-06 21:07:55,811 INFO L78 Accepts]: Start accepts. Automaton has 17062 states and 25110 transitions. Word has length 100 [2021-01-06 21:07:55,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:07:55,811 INFO L481 AbstractCegarLoop]: Abstraction has 17062 states and 25110 transitions. [2021-01-06 21:07:55,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 21:07:55,811 INFO L276 IsEmpty]: Start isEmpty. Operand 17062 states and 25110 transitions. [2021-01-06 21:07:55,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-01-06 21:07:55,813 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:07:55,814 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] [2021-01-06 21:07:55,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 21:07:55,814 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:07:55,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:07:55,814 INFO L82 PathProgramCache]: Analyzing trace with hash 97282675, now seen corresponding path program 1 times [2021-01-06 21:07:55,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:07:55,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062264439] [2021-01-06 21:07:55,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:07:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:07:56,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:07:56,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062264439] [2021-01-06 21:07:56,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:07:56,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 21:07:56,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738830445] [2021-01-06 21:07:56,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 21:07:56,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:07:56,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 21:07:56,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-01-06 21:07:56,054 INFO L87 Difference]: Start difference. First operand 17062 states and 25110 transitions. Second operand 10 states. [2021-01-06 21:08:02,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:08:02,380 INFO L93 Difference]: Finished difference Result 51281 states and 75272 transitions. [2021-01-06 21:08:02,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 21:08:02,381 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 100 [2021-01-06 21:08:02,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:08:02,416 INFO L225 Difference]: With dead ends: 51281 [2021-01-06 21:08:02,417 INFO L226 Difference]: Without dead ends: 34435 [2021-01-06 21:08:02,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2021-01-06 21:08:02,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34435 states. [2021-01-06 21:08:05,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34435 to 17062. [2021-01-06 21:08:05,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17062 states. [2021-01-06 21:08:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17062 states to 17062 states and 25104 transitions. [2021-01-06 21:08:05,385 INFO L78 Accepts]: Start accepts. Automaton has 17062 states and 25104 transitions. Word has length 100 [2021-01-06 21:08:05,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:08:05,385 INFO L481 AbstractCegarLoop]: Abstraction has 17062 states and 25104 transitions. [2021-01-06 21:08:05,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 21:08:05,385 INFO L276 IsEmpty]: Start isEmpty. Operand 17062 states and 25104 transitions. [2021-01-06 21:08:05,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-06 21:08:05,387 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:08:05,388 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] [2021-01-06 21:08:05,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 21:08:05,388 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:08:05,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:08:05,388 INFO L82 PathProgramCache]: Analyzing trace with hash -42600763, now seen corresponding path program 1 times [2021-01-06 21:08:05,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:08:05,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040744024] [2021-01-06 21:08:05,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:08:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:08:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:08:05,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040744024] [2021-01-06 21:08:05,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:08:05,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 21:08:05,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848603125] [2021-01-06 21:08:05,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 21:08:05,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:08:05,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 21:08:05,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-01-06 21:08:05,633 INFO L87 Difference]: Start difference. First operand 17062 states and 25104 transitions. Second operand 9 states. [2021-01-06 21:08:12,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:08:12,032 INFO L93 Difference]: Finished difference Result 50173 states and 73834 transitions. [2021-01-06 21:08:12,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 21:08:12,032 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2021-01-06 21:08:12,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:08:12,065 INFO L225 Difference]: With dead ends: 50173 [2021-01-06 21:08:12,066 INFO L226 Difference]: Without dead ends: 33447 [2021-01-06 21:08:12,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-01-06 21:08:12,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33447 states. [2021-01-06 21:08:15,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33447 to 16897. [2021-01-06 21:08:15,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16897 states. [2021-01-06 21:08:15,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16897 states to 16897 states and 24853 transitions. [2021-01-06 21:08:15,246 INFO L78 Accepts]: Start accepts. Automaton has 16897 states and 24853 transitions. Word has length 101 [2021-01-06 21:08:15,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:08:15,246 INFO L481 AbstractCegarLoop]: Abstraction has 16897 states and 24853 transitions. [2021-01-06 21:08:15,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 21:08:15,246 INFO L276 IsEmpty]: Start isEmpty. Operand 16897 states and 24853 transitions. [2021-01-06 21:08:15,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-06 21:08:15,248 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:08:15,248 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] [2021-01-06 21:08:15,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-06 21:08:15,249 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:08:15,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:08:15,249 INFO L82 PathProgramCache]: Analyzing trace with hash -2074076355, now seen corresponding path program 1 times [2021-01-06 21:08:15,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:08:15,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903419029] [2021-01-06 21:08:15,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:08:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:08:15,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:08:15,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903419029] [2021-01-06 21:08:15,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:08:15,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 21:08:15,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457107735] [2021-01-06 21:08:15,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 21:08:15,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:08:15,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 21:08:15,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 21:08:15,515 INFO L87 Difference]: Start difference. First operand 16897 states and 24853 transitions. Second operand 10 states. [2021-01-06 21:08:20,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:08:20,610 INFO L93 Difference]: Finished difference Result 36396 states and 53485 transitions. [2021-01-06 21:08:20,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 21:08:20,610 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2021-01-06 21:08:20,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:08:20,628 INFO L225 Difference]: With dead ends: 36396 [2021-01-06 21:08:20,629 INFO L226 Difference]: Without dead ends: 19651 [2021-01-06 21:08:20,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2021-01-06 21:08:20,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19651 states. [2021-01-06 21:08:24,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19651 to 16897. [2021-01-06 21:08:24,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16897 states. [2021-01-06 21:08:24,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16897 states to 16897 states and 24851 transitions. [2021-01-06 21:08:24,114 INFO L78 Accepts]: Start accepts. Automaton has 16897 states and 24851 transitions. Word has length 101 [2021-01-06 21:08:24,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:08:24,114 INFO L481 AbstractCegarLoop]: Abstraction has 16897 states and 24851 transitions. [2021-01-06 21:08:24,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 21:08:24,114 INFO L276 IsEmpty]: Start isEmpty. Operand 16897 states and 24851 transitions. [2021-01-06 21:08:24,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-01-06 21:08:24,116 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:08:24,116 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] [2021-01-06 21:08:24,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 21:08:24,117 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:08:24,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:08:24,117 INFO L82 PathProgramCache]: Analyzing trace with hash 586625182, now seen corresponding path program 1 times [2021-01-06 21:08:24,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:08:24,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199968872] [2021-01-06 21:08:24,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:08:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:08:24,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:08:24,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199968872] [2021-01-06 21:08:24,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:08:24,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 21:08:24,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989741588] [2021-01-06 21:08:24,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 21:08:24,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:08:24,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 21:08:24,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-01-06 21:08:24,353 INFO L87 Difference]: Start difference. First operand 16897 states and 24851 transitions. Second operand 10 states. [2021-01-06 21:08:32,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:08:32,373 INFO L93 Difference]: Finished difference Result 50776 states and 74496 transitions. [2021-01-06 21:08:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 21:08:32,374 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 102 [2021-01-06 21:08:32,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:08:32,410 INFO L225 Difference]: With dead ends: 50776 [2021-01-06 21:08:32,411 INFO L226 Difference]: Without dead ends: 34144 [2021-01-06 21:08:32,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2021-01-06 21:08:32,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34144 states. [2021-01-06 21:08:35,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34144 to 16897. [2021-01-06 21:08:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16897 states. [2021-01-06 21:08:36,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16897 states to 16897 states and 24845 transitions. [2021-01-06 21:08:36,008 INFO L78 Accepts]: Start accepts. Automaton has 16897 states and 24845 transitions. Word has length 102 [2021-01-06 21:08:36,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:08:36,008 INFO L481 AbstractCegarLoop]: Abstraction has 16897 states and 24845 transitions. [2021-01-06 21:08:36,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 21:08:36,008 INFO L276 IsEmpty]: Start isEmpty. Operand 16897 states and 24845 transitions. [2021-01-06 21:08:36,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-01-06 21:08:36,010 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:08:36,010 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] [2021-01-06 21:08:36,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-06 21:08:36,010 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:08:36,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:08:36,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1083546151, now seen corresponding path program 1 times [2021-01-06 21:08:36,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:08:36,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043328030] [2021-01-06 21:08:36,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:08:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:08:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:08:36,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043328030] [2021-01-06 21:08:36,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:08:36,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 21:08:36,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133667004] [2021-01-06 21:08:36,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 21:08:36,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:08:36,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 21:08:36,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 21:08:36,305 INFO L87 Difference]: Start difference. First operand 16897 states and 24845 transitions. Second operand 10 states. [2021-01-06 21:08:42,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:08:42,928 INFO L93 Difference]: Finished difference Result 42081 states and 61766 transitions. [2021-01-06 21:08:42,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 21:08:42,928 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2021-01-06 21:08:42,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:08:42,952 INFO L225 Difference]: With dead ends: 42081 [2021-01-06 21:08:42,953 INFO L226 Difference]: Without dead ends: 25479 [2021-01-06 21:08:42,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2021-01-06 21:08:42,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25479 states. [2021-01-06 21:08:46,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25479 to 16897. [2021-01-06 21:08:46,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16897 states. [2021-01-06 21:08:46,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16897 states to 16897 states and 24832 transitions. [2021-01-06 21:08:46,884 INFO L78 Accepts]: Start accepts. Automaton has 16897 states and 24832 transitions. Word has length 103 [2021-01-06 21:08:46,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:08:46,885 INFO L481 AbstractCegarLoop]: Abstraction has 16897 states and 24832 transitions. [2021-01-06 21:08:46,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 21:08:46,885 INFO L276 IsEmpty]: Start isEmpty. Operand 16897 states and 24832 transitions. [2021-01-06 21:08:46,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-01-06 21:08:46,887 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:08:46,887 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] [2021-01-06 21:08:46,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-06 21:08:46,887 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:08:46,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:08:46,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1394810664, now seen corresponding path program 1 times [2021-01-06 21:08:46,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:08:46,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293104242] [2021-01-06 21:08:46,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:08:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:08:47,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:08:47,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293104242] [2021-01-06 21:08:47,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:08:47,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-01-06 21:08:47,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680363612] [2021-01-06 21:08:47,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-06 21:08:47,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:08:47,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-06 21:08:47,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-01-06 21:08:47,264 INFO L87 Difference]: Start difference. First operand 16897 states and 24832 transitions. Second operand 13 states. [2021-01-06 21:08:47,923 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-01-06 21:08:48,757 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2021-01-06 21:09:17,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:09:17,185 INFO L93 Difference]: Finished difference Result 116325 states and 167096 transitions. [2021-01-06 21:09:17,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-06 21:09:17,186 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2021-01-06 21:09:17,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:09:17,306 INFO L225 Difference]: With dead ends: 116325 [2021-01-06 21:09:17,306 INFO L226 Difference]: Without dead ends: 99784 [2021-01-06 21:09:17,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=555, Invalid=1701, Unknown=0, NotChecked=0, Total=2256 [2021-01-06 21:09:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99784 states. [2021-01-06 21:09:22,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99784 to 16909. [2021-01-06 21:09:22,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16909 states. [2021-01-06 21:09:22,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16909 states to 16909 states and 24829 transitions. [2021-01-06 21:09:22,486 INFO L78 Accepts]: Start accepts. Automaton has 16909 states and 24829 transitions. Word has length 104 [2021-01-06 21:09:22,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:09:22,486 INFO L481 AbstractCegarLoop]: Abstraction has 16909 states and 24829 transitions. [2021-01-06 21:09:22,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-01-06 21:09:22,487 INFO L276 IsEmpty]: Start isEmpty. Operand 16909 states and 24829 transitions. [2021-01-06 21:09:22,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-01-06 21:09:22,488 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:09:22,488 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] [2021-01-06 21:09:22,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-06 21:09:22,489 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:09:22,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:09:22,489 INFO L82 PathProgramCache]: Analyzing trace with hash -294873708, now seen corresponding path program 1 times [2021-01-06 21:09:22,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:09:22,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420002176] [2021-01-06 21:09:22,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:09:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:09:22,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:09:22,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420002176] [2021-01-06 21:09:22,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:09:22,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 21:09:22,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456030103] [2021-01-06 21:09:22,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 21:09:22,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:09:22,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 21:09:22,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 21:09:22,761 INFO L87 Difference]: Start difference. First operand 16909 states and 24829 transitions. Second operand 10 states. [2021-01-06 21:09:35,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:09:35,325 INFO L93 Difference]: Finished difference Result 58420 states and 85837 transitions. [2021-01-06 21:09:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-06 21:09:35,325 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2021-01-06 21:09:35,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:09:35,364 INFO L225 Difference]: With dead ends: 58420 [2021-01-06 21:09:35,364 INFO L226 Difference]: Without dead ends: 41885 [2021-01-06 21:09:35,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2021-01-06 21:09:35,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41885 states. [2021-01-06 21:09:40,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41885 to 16897. [2021-01-06 21:09:40,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16897 states. [2021-01-06 21:09:40,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16897 states to 16897 states and 24804 transitions. [2021-01-06 21:09:40,091 INFO L78 Accepts]: Start accepts. Automaton has 16897 states and 24804 transitions. Word has length 105 [2021-01-06 21:09:40,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:09:40,091 INFO L481 AbstractCegarLoop]: Abstraction has 16897 states and 24804 transitions. [2021-01-06 21:09:40,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 21:09:40,092 INFO L276 IsEmpty]: Start isEmpty. Operand 16897 states and 24804 transitions. [2021-01-06 21:09:40,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-01-06 21:09:40,093 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:09:40,093 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] [2021-01-06 21:09:40,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-06 21:09:40,093 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:09:40,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:09:40,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1475383422, now seen corresponding path program 1 times [2021-01-06 21:09:40,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:09:40,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344098165] [2021-01-06 21:09:40,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:09:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:09:43,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:09:43,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344098165] [2021-01-06 21:09:43,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:09:43,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-01-06 21:09:43,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287970426] [2021-01-06 21:09:43,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-01-06 21:09:43,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:09:43,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-01-06 21:09:43,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1435, Unknown=0, NotChecked=0, Total=1560 [2021-01-06 21:09:43,684 INFO L87 Difference]: Start difference. First operand 16897 states and 24804 transitions. Second operand 40 states. [2021-01-06 21:09:44,545 WARN L197 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 157 [2021-01-06 21:09:45,239 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2021-01-06 21:09:45,474 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2021-01-06 21:09:45,769 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2021-01-06 21:09:46,196 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2021-01-06 21:09:46,485 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2021-01-06 21:09:46,821 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2021-01-06 21:09:47,167 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-01-06 21:09:47,520 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-01-06 21:09:47,893 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-01-06 21:09:48,803 WARN L197 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-01-06 21:09:49,256 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2021-01-06 21:09:49,844 WARN L197 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 109 [2021-01-06 21:09:50,479 WARN L197 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 123 [2021-01-06 21:09:51,285 WARN L197 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2021-01-06 21:09:52,195 WARN L197 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 150 [2021-01-06 21:09:53,146 WARN L197 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 169 [2021-01-06 21:09:54,196 WARN L197 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 179 [2021-01-06 21:09:55,576 WARN L197 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 209 DAG size of output: 187 [2021-01-06 21:09:57,031 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 216 DAG size of output: 193 [2021-01-06 21:09:58,739 WARN L197 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 223 DAG size of output: 200 [2021-01-06 21:09:59,265 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-01-06 21:09:59,823 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-01-06 21:10:00,159 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2021-01-06 21:10:00,559 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-01-06 21:10:00,869 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2021-01-06 21:10:01,177 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2021-01-06 21:10:01,474 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2021-01-06 21:10:01,720 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-01-06 21:10:02,011 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2021-01-06 21:10:02,551 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2021-01-06 21:10:02,891 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-01-06 21:10:03,382 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2021-01-06 21:10:03,801 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-01-06 21:10:04,227 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2021-01-06 21:10:04,537 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-01-06 21:10:04,932 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-01-06 21:10:05,669 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2021-01-06 21:10:06,252 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2021-01-06 21:10:07,171 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2021-01-06 21:10:08,251 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2021-01-06 21:10:08,661 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2021-01-06 21:10:09,234 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2021-01-06 21:10:10,123 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2021-01-06 21:10:10,577 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2021-01-06 21:10:21,353 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2021-01-06 21:10:22,644 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-01-06 21:10:26,312 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2021-01-06 21:10:33,908 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2021-01-06 21:10:35,816 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2021-01-06 21:10:50,916 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2021-01-06 21:10:54,182 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2021-01-06 21:11:13,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:11:13,512 INFO L93 Difference]: Finished difference Result 138813 states and 204209 transitions. [2021-01-06 21:11:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-01-06 21:11:13,513 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 105 [2021-01-06 21:11:13,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:11:13,887 INFO L225 Difference]: With dead ends: 138813 [2021-01-06 21:11:13,887 INFO L226 Difference]: Without dead ends: 135753 [2021-01-06 21:11:13,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2249 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=1421, Invalid=8679, Unknown=0, NotChecked=0, Total=10100 [2021-01-06 21:11:14,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135753 states.