/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.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 21:04:14,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 21:04:14,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 21:04:14,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 21:04:14,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 21:04:14,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 21:04:14,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 21:04:14,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 21:04:14,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 21:04:14,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 21:04:14,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 21:04:14,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 21:04:14,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 21:04:14,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 21:04:14,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 21:04:14,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 21:04:14,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 21:04:14,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 21:04:14,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 21:04:14,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 21:04:14,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 21:04:14,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 21:04:14,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 21:04:14,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 21:04:14,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 21:04:14,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 21:04:14,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 21:04:14,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 21:04:14,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 21:04:14,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 21:04:14,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 21:04:14,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 21:04:14,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 21:04:14,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 21:04:14,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 21:04:14,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 21:04:14,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 21:04:14,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 21:04:14,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 21:04:14,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 21:04:14,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 21:04:14,837 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 21:04:14,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 21:04:14,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 21:04:14,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 21:04:14,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 21:04:14,867 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 21:04:14,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 21:04:14,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 21:04:14,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 21:04:14,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 21:04:14,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 21:04:14,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 21:04:14,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 21:04:14,869 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 21:04:14,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 21:04:14,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 21:04:14,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 21:04:14,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 21:04:14,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 21:04:14,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 21:04:14,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 21:04:14,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 21:04:14,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 21:04:14,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 21:04:14,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 21:04:14,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 21:04:14,872 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 21:04:15,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 21:04:15,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 21:04:15,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 21:04:15,379 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 21:04:15,380 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 21:04:15,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2021-01-06 21:04:15,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e669a43b9/fafd39f4bbcf41b18c4aa8b818d2466d/FLAGa4926feda [2021-01-06 21:04:16,216 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 21:04:16,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2021-01-06 21:04:16,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e669a43b9/fafd39f4bbcf41b18c4aa8b818d2466d/FLAGa4926feda [2021-01-06 21:04:16,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e669a43b9/fafd39f4bbcf41b18c4aa8b818d2466d [2021-01-06 21:04:16,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 21:04:16,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 21:04:16,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 21:04:16,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 21:04:16,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 21:04:16,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 09:04:16" (1/1) ... [2021-01-06 21:04:16,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1747778a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16, skipping insertion in model container [2021-01-06 21:04:16,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 09:04:16" (1/1) ... [2021-01-06 21:04:16,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 21:04:16,335 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[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6212~0,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[~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[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6321~0,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[~p5_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[~__tmp_6500_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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6518~0,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 21:04:16,609 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.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7575,7588] 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[~p5_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[~__tmp_6500_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6429~0,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[~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[~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 21:04:16,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 21:04:16,711 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[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6212~0,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[~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[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6321~0,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[~p5_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[~__tmp_6500_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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6518~0,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 21:04:16,783 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.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7575,7588] 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[~p5_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[~__tmp_6500_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6429~0,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[~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[~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 21:04:16,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 21:04:16,932 INFO L208 MainTranslator]: Completed translation [2021-01-06 21:04:16,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16 WrapperNode [2021-01-06 21:04:16,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 21:04:16,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 21:04:16,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 21:04:16,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 21:04:16,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16" (1/1) ... [2021-01-06 21:04:16,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16" (1/1) ... [2021-01-06 21:04:17,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 21:04:17,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 21:04:17,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 21:04:17,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 21:04:17,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16" (1/1) ... [2021-01-06 21:04:17,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16" (1/1) ... [2021-01-06 21:04:17,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16" (1/1) ... [2021-01-06 21:04:17,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16" (1/1) ... [2021-01-06 21:04:17,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16" (1/1) ... [2021-01-06 21:04:17,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16" (1/1) ... [2021-01-06 21:04:17,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16" (1/1) ... [2021-01-06 21:04:17,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 21:04:17,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 21:04:17,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 21:04:17,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 21:04:17,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16" (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 21:04:17,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 21:04:17,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 21:04:17,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 21:04:17,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 21:04:18,212 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 21:04:18,213 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-06 21:04:18,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 09:04:18 BoogieIcfgContainer [2021-01-06 21:04:18,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 21:04:18,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 21:04:18,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 21:04:18,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 21:04:18,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 09:04:16" (1/3) ... [2021-01-06 21:04:18,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cb0972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 09:04:18, skipping insertion in model container [2021-01-06 21:04:18,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:04:16" (2/3) ... [2021-01-06 21:04:18,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cb0972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 09:04:18, skipping insertion in model container [2021-01-06 21:04:18,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 09:04:18" (3/3) ... [2021-01-06 21:04:18,225 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2021-01-06 21:04:18,232 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 21:04:18,238 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 21:04:18,258 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 21:04:18,288 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 21:04:18,288 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 21:04:18,288 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 21:04:18,289 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 21:04:18,289 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 21:04:18,289 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 21:04:18,289 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 21:04:18,289 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 21:04:18,309 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2021-01-06 21:04:18,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-01-06 21:04:18,319 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:18,320 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] [2021-01-06 21:04:18,321 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:18,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:18,327 INFO L82 PathProgramCache]: Analyzing trace with hash -95572409, now seen corresponding path program 1 times [2021-01-06 21:04:18,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:18,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10748526] [2021-01-06 21:04:18,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:18,863 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 21:04:18,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10748526] [2021-01-06 21:04:18,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:18,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:04:18,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764383236] [2021-01-06 21:04:18,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:04:18,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:18,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:04:18,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:04:18,896 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 3 states. [2021-01-06 21:04:19,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:19,078 INFO L93 Difference]: Finished difference Result 295 states and 489 transitions. [2021-01-06 21:04:19,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:04:19,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2021-01-06 21:04:19,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:19,112 INFO L225 Difference]: With dead ends: 295 [2021-01-06 21:04:19,113 INFO L226 Difference]: Without dead ends: 225 [2021-01-06 21:04:19,122 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 21:04:19,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-01-06 21:04:19,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2021-01-06 21:04:19,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2021-01-06 21:04:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 321 transitions. [2021-01-06 21:04:19,237 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 321 transitions. Word has length 76 [2021-01-06 21:04:19,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:19,238 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 321 transitions. [2021-01-06 21:04:19,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:04:19,238 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 321 transitions. [2021-01-06 21:04:19,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-01-06 21:04:19,241 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:19,241 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] [2021-01-06 21:04:19,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 21:04:19,242 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:19,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:19,243 INFO L82 PathProgramCache]: Analyzing trace with hash -136563640, now seen corresponding path program 1 times [2021-01-06 21:04:19,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:19,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582961333] [2021-01-06 21:04:19,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:19,483 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 21:04:19,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582961333] [2021-01-06 21:04:19,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:19,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 21:04:19,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332650990] [2021-01-06 21:04:19,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 21:04:19,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:19,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 21:04:19,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 21:04:19,491 INFO L87 Difference]: Start difference. First operand 223 states and 321 transitions. Second operand 6 states. [2021-01-06 21:04:19,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:19,826 INFO L93 Difference]: Finished difference Result 559 states and 839 transitions. [2021-01-06 21:04:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:04:19,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2021-01-06 21:04:19,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:19,831 INFO L225 Difference]: With dead ends: 559 [2021-01-06 21:04:19,831 INFO L226 Difference]: Without dead ends: 374 [2021-01-06 21:04:19,833 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 21:04:19,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-01-06 21:04:19,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 372. [2021-01-06 21:04:19,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2021-01-06 21:04:19,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 553 transitions. [2021-01-06 21:04:19,875 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 553 transitions. Word has length 78 [2021-01-06 21:04:19,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:19,876 INFO L481 AbstractCegarLoop]: Abstraction has 372 states and 553 transitions. [2021-01-06 21:04:19,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 21:04:19,876 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 553 transitions. [2021-01-06 21:04:19,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-01-06 21:04:19,883 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:19,883 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] [2021-01-06 21:04:19,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 21:04:19,884 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:19,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:19,886 INFO L82 PathProgramCache]: Analyzing trace with hash 693922755, now seen corresponding path program 1 times [2021-01-06 21:04:19,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:19,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559571139] [2021-01-06 21:04:19,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:20,183 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 21:04:20,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559571139] [2021-01-06 21:04:20,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:20,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 21:04:20,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858189309] [2021-01-06 21:04:20,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 21:04:20,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:20,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 21:04:20,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 21:04:20,191 INFO L87 Difference]: Start difference. First operand 372 states and 553 transitions. Second operand 6 states. [2021-01-06 21:04:20,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:20,470 INFO L93 Difference]: Finished difference Result 918 states and 1401 transitions. [2021-01-06 21:04:20,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:04:20,471 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2021-01-06 21:04:20,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:20,475 INFO L225 Difference]: With dead ends: 918 [2021-01-06 21:04:20,476 INFO L226 Difference]: Without dead ends: 600 [2021-01-06 21:04:20,478 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 21:04:20,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-01-06 21:04:20,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 598. [2021-01-06 21:04:20,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2021-01-06 21:04:20,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 900 transitions. [2021-01-06 21:04:20,533 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 900 transitions. Word has length 79 [2021-01-06 21:04:20,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:20,534 INFO L481 AbstractCegarLoop]: Abstraction has 598 states and 900 transitions. [2021-01-06 21:04:20,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 21:04:20,534 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 900 transitions. [2021-01-06 21:04:20,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-01-06 21:04:20,535 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:20,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 21:04:20,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 21:04:20,536 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:20,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:20,537 INFO L82 PathProgramCache]: Analyzing trace with hash 465447848, now seen corresponding path program 1 times [2021-01-06 21:04:20,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:20,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360057373] [2021-01-06 21:04:20,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:20,668 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 21:04:20,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360057373] [2021-01-06 21:04:20,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:20,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 21:04:20,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024651246] [2021-01-06 21:04:20,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 21:04:20,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:20,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 21:04:20,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 21:04:20,673 INFO L87 Difference]: Start difference. First operand 598 states and 900 transitions. Second operand 6 states. [2021-01-06 21:04:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:20,993 INFO L93 Difference]: Finished difference Result 1616 states and 2472 transitions. [2021-01-06 21:04:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:04:20,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2021-01-06 21:04:20,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:21,003 INFO L225 Difference]: With dead ends: 1616 [2021-01-06 21:04:21,003 INFO L226 Difference]: Without dead ends: 1068 [2021-01-06 21:04:21,006 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 21:04:21,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2021-01-06 21:04:21,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1066. [2021-01-06 21:04:21,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2021-01-06 21:04:21,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1615 transitions. [2021-01-06 21:04:21,090 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1615 transitions. Word has length 80 [2021-01-06 21:04:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:21,091 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 1615 transitions. [2021-01-06 21:04:21,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 21:04:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1615 transitions. [2021-01-06 21:04:21,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-01-06 21:04:21,094 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:21,094 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] [2021-01-06 21:04:21,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 21:04:21,095 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:21,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:21,095 INFO L82 PathProgramCache]: Analyzing trace with hash -397736337, now seen corresponding path program 1 times [2021-01-06 21:04:21,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:21,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784195610] [2021-01-06 21:04:21,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:21,242 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 21:04:21,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784195610] [2021-01-06 21:04:21,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:21,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 21:04:21,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023552356] [2021-01-06 21:04:21,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 21:04:21,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:21,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 21:04:21,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 21:04:21,246 INFO L87 Difference]: Start difference. First operand 1066 states and 1615 transitions. Second operand 5 states. [2021-01-06 21:04:21,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:21,544 INFO L93 Difference]: Finished difference Result 2086 states and 3182 transitions. [2021-01-06 21:04:21,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:04:21,545 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2021-01-06 21:04:21,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:21,554 INFO L225 Difference]: With dead ends: 2086 [2021-01-06 21:04:21,554 INFO L226 Difference]: Without dead ends: 1066 [2021-01-06 21:04:21,556 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 21:04:21,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2021-01-06 21:04:21,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2021-01-06 21:04:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2021-01-06 21:04:21,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1598 transitions. [2021-01-06 21:04:21,647 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1598 transitions. Word has length 81 [2021-01-06 21:04:21,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:21,648 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 1598 transitions. [2021-01-06 21:04:21,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 21:04:21,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1598 transitions. [2021-01-06 21:04:21,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-01-06 21:04:21,650 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:21,651 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] [2021-01-06 21:04:21,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 21:04:21,651 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:21,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:21,652 INFO L82 PathProgramCache]: Analyzing trace with hash 59673876, now seen corresponding path program 1 times [2021-01-06 21:04:21,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:21,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317024614] [2021-01-06 21:04:21,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:21,755 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 21:04:21,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317024614] [2021-01-06 21:04:21,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:21,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 21:04:21,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767862610] [2021-01-06 21:04:21,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 21:04:21,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:21,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 21:04:21,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 21:04:21,758 INFO L87 Difference]: Start difference. First operand 1066 states and 1598 transitions. Second operand 5 states. [2021-01-06 21:04:22,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:22,017 INFO L93 Difference]: Finished difference Result 2090 states and 3153 transitions. [2021-01-06 21:04:22,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 21:04:22,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2021-01-06 21:04:22,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:22,024 INFO L225 Difference]: With dead ends: 2090 [2021-01-06 21:04:22,024 INFO L226 Difference]: Without dead ends: 1066 [2021-01-06 21:04:22,026 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 21:04:22,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2021-01-06 21:04:22,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2021-01-06 21:04:22,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2021-01-06 21:04:22,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1581 transitions. [2021-01-06 21:04:22,116 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1581 transitions. Word has length 82 [2021-01-06 21:04:22,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:22,116 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 1581 transitions. [2021-01-06 21:04:22,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 21:04:22,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1581 transitions. [2021-01-06 21:04:22,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-01-06 21:04:22,118 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:22,118 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] [2021-01-06 21:04:22,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 21:04:22,118 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:22,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:22,119 INFO L82 PathProgramCache]: Analyzing trace with hash 479841819, now seen corresponding path program 1 times [2021-01-06 21:04:22,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:22,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39254820] [2021-01-06 21:04:22,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:22,246 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 21:04:22,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39254820] [2021-01-06 21:04:22,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:22,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:04:22,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178651069] [2021-01-06 21:04:22,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:04:22,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:22,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:04:22,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:04:22,249 INFO L87 Difference]: Start difference. First operand 1066 states and 1581 transitions. Second operand 7 states. [2021-01-06 21:04:22,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:22,846 INFO L93 Difference]: Finished difference Result 5814 states and 8751 transitions. [2021-01-06 21:04:22,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 21:04:22,846 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2021-01-06 21:04:22,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:22,874 INFO L225 Difference]: With dead ends: 5814 [2021-01-06 21:04:22,874 INFO L226 Difference]: Without dead ends: 4924 [2021-01-06 21:04:22,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-06 21:04:22,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4924 states. [2021-01-06 21:04:23,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4924 to 1526. [2021-01-06 21:04:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2021-01-06 21:04:23,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2281 transitions. [2021-01-06 21:04:23,093 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2281 transitions. Word has length 83 [2021-01-06 21:04:23,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:23,094 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 2281 transitions. [2021-01-06 21:04:23,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:04:23,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2281 transitions. [2021-01-06 21:04:23,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-01-06 21:04:23,095 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:23,095 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] [2021-01-06 21:04:23,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 21:04:23,096 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:23,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:23,096 INFO L82 PathProgramCache]: Analyzing trace with hash -2031969341, now seen corresponding path program 1 times [2021-01-06 21:04:23,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:23,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31395978] [2021-01-06 21:04:23,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:23,211 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 21:04:23,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31395978] [2021-01-06 21:04:23,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:23,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:04:23,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909756812] [2021-01-06 21:04:23,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:04:23,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:23,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:04:23,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:04:23,214 INFO L87 Difference]: Start difference. First operand 1526 states and 2281 transitions. Second operand 7 states. [2021-01-06 21:04:23,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:23,837 INFO L93 Difference]: Finished difference Result 6214 states and 9357 transitions. [2021-01-06 21:04:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 21:04:23,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2021-01-06 21:04:23,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:23,864 INFO L225 Difference]: With dead ends: 6214 [2021-01-06 21:04:23,865 INFO L226 Difference]: Without dead ends: 5324 [2021-01-06 21:04:23,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-06 21:04:23,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2021-01-06 21:04:24,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 2498. [2021-01-06 21:04:24,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2498 states. [2021-01-06 21:04:24,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 3757 transitions. [2021-01-06 21:04:24,188 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 3757 transitions. Word has length 83 [2021-01-06 21:04:24,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:24,189 INFO L481 AbstractCegarLoop]: Abstraction has 2498 states and 3757 transitions. [2021-01-06 21:04:24,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:04:24,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 3757 transitions. [2021-01-06 21:04:24,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-01-06 21:04:24,191 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:24,191 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] [2021-01-06 21:04:24,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 21:04:24,192 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:24,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:24,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1257963832, now seen corresponding path program 1 times [2021-01-06 21:04:24,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:24,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719649511] [2021-01-06 21:04:24,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:24,271 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 21:04:24,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719649511] [2021-01-06 21:04:24,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:24,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:04:24,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059197197] [2021-01-06 21:04:24,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:04:24,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:24,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:04:24,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:04:24,274 INFO L87 Difference]: Start difference. First operand 2498 states and 3757 transitions. Second operand 3 states. [2021-01-06 21:04:24,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:24,706 INFO L93 Difference]: Finished difference Result 6150 states and 9303 transitions. [2021-01-06 21:04:24,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:04:24,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2021-01-06 21:04:24,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:24,726 INFO L225 Difference]: With dead ends: 6150 [2021-01-06 21:04:24,726 INFO L226 Difference]: Without dead ends: 3880 [2021-01-06 21:04:24,730 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 21:04:24,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3880 states. [2021-01-06 21:04:25,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3880 to 3878. [2021-01-06 21:04:25,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3878 states. [2021-01-06 21:04:25,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 5793 transitions. [2021-01-06 21:04:25,141 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 5793 transitions. Word has length 83 [2021-01-06 21:04:25,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:25,141 INFO L481 AbstractCegarLoop]: Abstraction has 3878 states and 5793 transitions. [2021-01-06 21:04:25,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:04:25,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 5793 transitions. [2021-01-06 21:04:25,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-01-06 21:04:25,143 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:25,144 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] [2021-01-06 21:04:25,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 21:04:25,144 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:25,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:25,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1051065337, now seen corresponding path program 1 times [2021-01-06 21:04:25,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:25,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270116759] [2021-01-06 21:04:25,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:25,197 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 21:04:25,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270116759] [2021-01-06 21:04:25,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:25,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 21:04:25,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902222056] [2021-01-06 21:04:25,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 21:04:25,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:25,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 21:04:25,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 21:04:25,199 INFO L87 Difference]: Start difference. First operand 3878 states and 5793 transitions. Second operand 3 states. [2021-01-06 21:04:25,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:25,966 INFO L93 Difference]: Finished difference Result 10786 states and 16099 transitions. [2021-01-06 21:04:25,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 21:04:25,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2021-01-06 21:04:25,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:26,002 INFO L225 Difference]: With dead ends: 10786 [2021-01-06 21:04:26,002 INFO L226 Difference]: Without dead ends: 7136 [2021-01-06 21:04:26,009 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 21:04:26,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7136 states. [2021-01-06 21:04:26,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7136 to 7134. [2021-01-06 21:04:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7134 states. [2021-01-06 21:04:26,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 10505 transitions. [2021-01-06 21:04:26,807 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 10505 transitions. Word has length 83 [2021-01-06 21:04:26,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:26,807 INFO L481 AbstractCegarLoop]: Abstraction has 7134 states and 10505 transitions. [2021-01-06 21:04:26,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 21:04:26,808 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 10505 transitions. [2021-01-06 21:04:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-01-06 21:04:26,809 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:26,810 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] [2021-01-06 21:04:26,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 21:04:26,810 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:26,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:26,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1066791687, now seen corresponding path program 1 times [2021-01-06 21:04:26,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:26,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124632185] [2021-01-06 21:04:26,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:26,920 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 21:04:26,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124632185] [2021-01-06 21:04:26,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:26,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:04:26,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944707913] [2021-01-06 21:04:26,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:04:26,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:26,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:04:26,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:04:26,923 INFO L87 Difference]: Start difference. First operand 7134 states and 10505 transitions. Second operand 7 states. [2021-01-06 21:04:28,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:28,474 INFO L93 Difference]: Finished difference Result 19232 states and 28383 transitions. [2021-01-06 21:04:28,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 21:04:28,475 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2021-01-06 21:04:28,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:28,514 INFO L225 Difference]: With dead ends: 19232 [2021-01-06 21:04:28,514 INFO L226 Difference]: Without dead ends: 16670 [2021-01-06 21:04:28,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-06 21:04:28,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16670 states. [2021-01-06 21:04:29,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16670 to 8874. [2021-01-06 21:04:29,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8874 states. [2021-01-06 21:04:29,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8874 states to 8874 states and 13069 transitions. [2021-01-06 21:04:29,397 INFO L78 Accepts]: Start accepts. Automaton has 8874 states and 13069 transitions. Word has length 83 [2021-01-06 21:04:29,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:29,397 INFO L481 AbstractCegarLoop]: Abstraction has 8874 states and 13069 transitions. [2021-01-06 21:04:29,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:04:29,397 INFO L276 IsEmpty]: Start isEmpty. Operand 8874 states and 13069 transitions. [2021-01-06 21:04:29,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-01-06 21:04:29,399 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:29,399 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] [2021-01-06 21:04:29,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 21:04:29,400 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:29,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:29,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1309753425, now seen corresponding path program 1 times [2021-01-06 21:04:29,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:29,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904108234] [2021-01-06 21:04:29,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:29,509 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 21:04:29,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904108234] [2021-01-06 21:04:29,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:29,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:04:29,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629149628] [2021-01-06 21:04:29,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:04:29,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:29,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:04:29,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:04:29,512 INFO L87 Difference]: Start difference. First operand 8874 states and 13069 transitions. Second operand 7 states. [2021-01-06 21:04:31,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:31,846 INFO L93 Difference]: Finished difference Result 21470 states and 31703 transitions. [2021-01-06 21:04:31,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 21:04:31,847 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2021-01-06 21:04:31,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:31,888 INFO L225 Difference]: With dead ends: 21470 [2021-01-06 21:04:31,889 INFO L226 Difference]: Without dead ends: 18908 [2021-01-06 21:04:31,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-06 21:04:31,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18908 states. [2021-01-06 21:04:33,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18908 to 10653. [2021-01-06 21:04:33,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10653 states. [2021-01-06 21:04:33,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10653 states to 10653 states and 15693 transitions. [2021-01-06 21:04:33,079 INFO L78 Accepts]: Start accepts. Automaton has 10653 states and 15693 transitions. Word has length 83 [2021-01-06 21:04:33,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:33,080 INFO L481 AbstractCegarLoop]: Abstraction has 10653 states and 15693 transitions. [2021-01-06 21:04:33,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:04:33,080 INFO L276 IsEmpty]: Start isEmpty. Operand 10653 states and 15693 transitions. [2021-01-06 21:04:33,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-01-06 21:04:33,082 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:33,082 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] [2021-01-06 21:04:33,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 21:04:33,082 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:33,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:33,083 INFO L82 PathProgramCache]: Analyzing trace with hash 716839727, now seen corresponding path program 1 times [2021-01-06 21:04:33,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:33,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201290180] [2021-01-06 21:04:33,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:33,190 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 21:04:33,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201290180] [2021-01-06 21:04:33,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:33,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 21:04:33,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625027699] [2021-01-06 21:04:33,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 21:04:33,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:33,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 21:04:33,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-06 21:04:33,193 INFO L87 Difference]: Start difference. First operand 10653 states and 15693 transitions. Second operand 7 states. [2021-01-06 21:04:34,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:34,959 INFO L93 Difference]: Finished difference Result 23046 states and 34027 transitions. [2021-01-06 21:04:34,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 21:04:34,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2021-01-06 21:04:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:35,000 INFO L225 Difference]: With dead ends: 23046 [2021-01-06 21:04:35,000 INFO L226 Difference]: Without dead ends: 20484 [2021-01-06 21:04:35,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-06 21:04:35,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20484 states. [2021-01-06 21:04:36,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20484 to 12413. [2021-01-06 21:04:36,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12413 states. [2021-01-06 21:04:36,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12413 states to 12413 states and 18289 transitions. [2021-01-06 21:04:36,340 INFO L78 Accepts]: Start accepts. Automaton has 12413 states and 18289 transitions. Word has length 83 [2021-01-06 21:04:36,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:36,340 INFO L481 AbstractCegarLoop]: Abstraction has 12413 states and 18289 transitions. [2021-01-06 21:04:36,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 21:04:36,341 INFO L276 IsEmpty]: Start isEmpty. Operand 12413 states and 18289 transitions. [2021-01-06 21:04:36,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-01-06 21:04:36,343 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:36,343 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] [2021-01-06 21:04:36,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 21:04:36,343 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:36,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:36,344 INFO L82 PathProgramCache]: Analyzing trace with hash 340263851, now seen corresponding path program 1 times [2021-01-06 21:04:36,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:36,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625089914] [2021-01-06 21:04:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:36,438 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 21:04:36,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625089914] [2021-01-06 21:04:36,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:36,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 21:04:36,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807524461] [2021-01-06 21:04:36,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 21:04:36,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:36,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 21:04:36,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 21:04:36,440 INFO L87 Difference]: Start difference. First operand 12413 states and 18289 transitions. Second operand 5 states. [2021-01-06 21:04:38,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:38,934 INFO L93 Difference]: Finished difference Result 20975 states and 30898 transitions. [2021-01-06 21:04:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 21:04:38,934 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2021-01-06 21:04:38,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:38,969 INFO L225 Difference]: With dead ends: 20975 [2021-01-06 21:04:38,969 INFO L226 Difference]: Without dead ends: 20973 [2021-01-06 21:04:38,974 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 21:04:38,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20973 states. [2021-01-06 21:04:40,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20973 to 12509. [2021-01-06 21:04:40,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12509 states. [2021-01-06 21:04:40,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 18329 transitions. [2021-01-06 21:04:40,480 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 18329 transitions. Word has length 84 [2021-01-06 21:04:40,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:40,480 INFO L481 AbstractCegarLoop]: Abstraction has 12509 states and 18329 transitions. [2021-01-06 21:04:40,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 21:04:40,480 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 18329 transitions. [2021-01-06 21:04:40,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-01-06 21:04:40,483 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:40,483 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] [2021-01-06 21:04:40,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 21:04:40,483 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:40,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:40,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1580243929, now seen corresponding path program 1 times [2021-01-06 21:04:40,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:40,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103984237] [2021-01-06 21:04:40,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:40,729 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 21:04:40,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103984237] [2021-01-06 21:04:40,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:40,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 21:04:40,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037004917] [2021-01-06 21:04:40,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 21:04:40,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:40,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 21:04:40,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-01-06 21:04:40,731 INFO L87 Difference]: Start difference. First operand 12509 states and 18329 transitions. Second operand 10 states. [2021-01-06 21:04:44,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:44,429 INFO L93 Difference]: Finished difference Result 37582 states and 54898 transitions. [2021-01-06 21:04:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 21:04:44,429 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2021-01-06 21:04:44,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:44,463 INFO L225 Difference]: With dead ends: 37582 [2021-01-06 21:04:44,464 INFO L226 Difference]: Without dead ends: 25307 [2021-01-06 21:04:44,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2021-01-06 21:04:44,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25307 states. [2021-01-06 21:04:46,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25307 to 12509. [2021-01-06 21:04:46,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12509 states. [2021-01-06 21:04:46,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 18320 transitions. [2021-01-06 21:04:46,194 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 18320 transitions. Word has length 84 [2021-01-06 21:04:46,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:46,194 INFO L481 AbstractCegarLoop]: Abstraction has 12509 states and 18320 transitions. [2021-01-06 21:04:46,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 21:04:46,195 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 18320 transitions. [2021-01-06 21:04:46,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-01-06 21:04:46,197 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:46,197 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] [2021-01-06 21:04:46,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 21:04:46,197 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:46,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:46,198 INFO L82 PathProgramCache]: Analyzing trace with hash 568884420, now seen corresponding path program 1 times [2021-01-06 21:04:46,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:46,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793204601] [2021-01-06 21:04:46,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:46,515 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 21:04:46,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793204601] [2021-01-06 21:04:46,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:46,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 21:04:46,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756475139] [2021-01-06 21:04:46,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 21:04:46,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:46,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 21:04:46,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-01-06 21:04:46,522 INFO L87 Difference]: Start difference. First operand 12509 states and 18320 transitions. Second operand 9 states. [2021-01-06 21:04:49,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:49,714 INFO L93 Difference]: Finished difference Result 30981 states and 45390 transitions. [2021-01-06 21:04:49,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 21:04:49,714 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2021-01-06 21:04:49,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:49,733 INFO L225 Difference]: With dead ends: 30981 [2021-01-06 21:04:49,733 INFO L226 Difference]: Without dead ends: 18671 [2021-01-06 21:04:49,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-01-06 21:04:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18671 states. [2021-01-06 21:04:51,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18671 to 12509. [2021-01-06 21:04:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12509 states. [2021-01-06 21:04:51,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 18319 transitions. [2021-01-06 21:04:51,472 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 18319 transitions. Word has length 85 [2021-01-06 21:04:51,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:51,472 INFO L481 AbstractCegarLoop]: Abstraction has 12509 states and 18319 transitions. [2021-01-06 21:04:51,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 21:04:51,473 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 18319 transitions. [2021-01-06 21:04:51,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-01-06 21:04:51,475 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:51,475 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] [2021-01-06 21:04:51,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 21:04:51,475 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:51,476 INFO L82 PathProgramCache]: Analyzing trace with hash 690607320, now seen corresponding path program 1 times [2021-01-06 21:04:51,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:51,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435625647] [2021-01-06 21:04:51,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:51,691 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 21:04:51,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435625647] [2021-01-06 21:04:51,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:51,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 21:04:51,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835392607] [2021-01-06 21:04:51,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 21:04:51,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:51,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 21:04:51,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-01-06 21:04:51,693 INFO L87 Difference]: Start difference. First operand 12509 states and 18319 transitions. Second operand 10 states. [2021-01-06 21:04:56,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:04:56,240 INFO L93 Difference]: Finished difference Result 37672 states and 55011 transitions. [2021-01-06 21:04:56,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 21:04:56,241 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2021-01-06 21:04:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:04:56,271 INFO L225 Difference]: With dead ends: 37672 [2021-01-06 21:04:56,271 INFO L226 Difference]: Without dead ends: 25322 [2021-01-06 21:04:56,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2021-01-06 21:04:56,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25322 states. [2021-01-06 21:04:58,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25322 to 12509. [2021-01-06 21:04:58,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12509 states. [2021-01-06 21:04:58,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 18313 transitions. [2021-01-06 21:04:58,331 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 18313 transitions. Word has length 85 [2021-01-06 21:04:58,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:04:58,331 INFO L481 AbstractCegarLoop]: Abstraction has 12509 states and 18313 transitions. [2021-01-06 21:04:58,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 21:04:58,332 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 18313 transitions. [2021-01-06 21:04:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-01-06 21:04:58,333 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:04:58,333 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] [2021-01-06 21:04:58,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 21:04:58,334 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:04:58,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:04:58,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1622636759, now seen corresponding path program 1 times [2021-01-06 21:04:58,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:04:58,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755311838] [2021-01-06 21:04:58,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:04:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:04:58,556 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 21:04:58,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755311838] [2021-01-06 21:04:58,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:04:58,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 21:04:58,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724109165] [2021-01-06 21:04:58,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 21:04:58,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:04:58,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 21:04:58,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 21:04:58,559 INFO L87 Difference]: Start difference. First operand 12509 states and 18313 transitions. Second operand 10 states. [2021-01-06 21:05:02,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:05:02,636 INFO L93 Difference]: Finished difference Result 31260 states and 45681 transitions. [2021-01-06 21:05:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 21:05:02,637 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2021-01-06 21:05:02,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:05:02,656 INFO L225 Difference]: With dead ends: 31260 [2021-01-06 21:05:02,656 INFO L226 Difference]: Without dead ends: 18895 [2021-01-06 21:05:02,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2021-01-06 21:05:02,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18895 states. [2021-01-06 21:05:04,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18895 to 12509. [2021-01-06 21:05:04,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12509 states. [2021-01-06 21:05:04,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 18310 transitions. [2021-01-06 21:05:04,818 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 18310 transitions. Word has length 86 [2021-01-06 21:05:04,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:05:04,818 INFO L481 AbstractCegarLoop]: Abstraction has 12509 states and 18310 transitions. [2021-01-06 21:05:04,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 21:05:04,818 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 18310 transitions. [2021-01-06 21:05:04,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-01-06 21:05:04,819 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:05:04,820 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] [2021-01-06 21:05:04,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-06 21:05:04,820 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:05:04,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:05:04,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1331278477, now seen corresponding path program 1 times [2021-01-06 21:05:04,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:05:04,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418332128] [2021-01-06 21:05:04,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:05:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:05:05,063 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 21:05:05,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418332128] [2021-01-06 21:05:05,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:05:05,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 21:05:05,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672094379] [2021-01-06 21:05:05,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 21:05:05,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:05:05,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 21:05:05,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 21:05:05,066 INFO L87 Difference]: Start difference. First operand 12509 states and 18310 transitions. Second operand 10 states. [2021-01-06 21:05:09,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:05:09,528 INFO L93 Difference]: Finished difference Result 31125 states and 45480 transitions. [2021-01-06 21:05:09,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 21:05:09,528 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2021-01-06 21:05:09,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:05:09,545 INFO L225 Difference]: With dead ends: 31125 [2021-01-06 21:05:09,545 INFO L226 Difference]: Without dead ends: 18895 [2021-01-06 21:05:09,555 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 21:05:09,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18895 states. [2021-01-06 21:05:11,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18895 to 12509. [2021-01-06 21:05:11,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12509 states. [2021-01-06 21:05:11,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 18290 transitions. [2021-01-06 21:05:11,869 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 18290 transitions. Word has length 87 [2021-01-06 21:05:11,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:05:11,869 INFO L481 AbstractCegarLoop]: Abstraction has 12509 states and 18290 transitions. [2021-01-06 21:05:11,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 21:05:11,869 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 18290 transitions. [2021-01-06 21:05:11,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-01-06 21:05:11,870 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:05:11,870 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] [2021-01-06 21:05:11,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 21:05:11,871 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:05:11,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:05:11,871 INFO L82 PathProgramCache]: Analyzing trace with hash -479617813, now seen corresponding path program 1 times [2021-01-06 21:05:11,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:05:11,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631420777] [2021-01-06 21:05:11,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:05:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:05:14,239 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 21:05:14,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631420777] [2021-01-06 21:05:14,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:05:14,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-01-06 21:05:14,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344344344] [2021-01-06 21:05:14,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-01-06 21:05:14,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:05:14,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-01-06 21:05:14,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=982, Unknown=0, NotChecked=0, Total=1056 [2021-01-06 21:05:14,241 INFO L87 Difference]: Start difference. First operand 12509 states and 18290 transitions. Second operand 33 states. [2021-01-06 21:05:14,858 WARN L197 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 126 [2021-01-06 21:05:15,522 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-01-06 21:05:15,743 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2021-01-06 21:05:15,974 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2021-01-06 21:05:16,217 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-01-06 21:05:16,477 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2021-01-06 21:05:17,067 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-01-06 21:05:17,417 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-01-06 21:05:17,863 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-06 21:05:18,402 WARN L197 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 110 [2021-01-06 21:05:19,124 WARN L197 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 135 [2021-01-06 21:05:19,907 WARN L197 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 148 [2021-01-06 21:05:20,838 WARN L197 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 156 [2021-01-06 21:05:21,711 WARN L197 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 160 [2021-01-06 21:05:22,685 WARN L197 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 167 [2021-01-06 21:05:23,070 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-01-06 21:05:23,447 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-01-06 21:05:23,752 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-01-06 21:05:25,866 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2021-01-06 21:05:26,439 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2021-01-06 21:05:36,602 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2021-01-06 21:05:51,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:05:51,848 INFO L93 Difference]: Finished difference Result 92206 states and 135238 transitions. [2021-01-06 21:05:51,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-01-06 21:05:51,849 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 88 [2021-01-06 21:05:51,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:05:51,954 INFO L225 Difference]: With dead ends: 92206 [2021-01-06 21:05:51,954 INFO L226 Difference]: Without dead ends: 87874 [2021-01-06 21:05:51,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=658, Invalid=3632, Unknown=0, NotChecked=0, Total=4290 [2021-01-06 21:05:52,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87874 states. [2021-01-06 21:05:56,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87874 to 12523. [2021-01-06 21:05:56,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12523 states. [2021-01-06 21:05:56,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12523 states to 12523 states and 18307 transitions. [2021-01-06 21:05:56,025 INFO L78 Accepts]: Start accepts. Automaton has 12523 states and 18307 transitions. Word has length 88 [2021-01-06 21:05:56,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:05:56,026 INFO L481 AbstractCegarLoop]: Abstraction has 12523 states and 18307 transitions. [2021-01-06 21:05:56,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2021-01-06 21:05:56,026 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states and 18307 transitions. [2021-01-06 21:05:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-01-06 21:05:56,027 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:05:56,027 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] [2021-01-06 21:05:56,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-06 21:05:56,028 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:05:56,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:05:56,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1342130604, now seen corresponding path program 1 times [2021-01-06 21:05:56,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:05:56,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950935625] [2021-01-06 21:05:56,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:05:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:05:58,714 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 21:05:58,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950935625] [2021-01-06 21:05:58,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:05:58,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-01-06 21:05:58,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282607975] [2021-01-06 21:05:58,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-01-06 21:05:58,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:05:58,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-01-06 21:05:58,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2021-01-06 21:05:58,717 INFO L87 Difference]: Start difference. First operand 12523 states and 18307 transitions. Second operand 34 states. [2021-01-06 21:05:59,259 WARN L197 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2021-01-06 21:06:00,006 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-01-06 21:06:00,258 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2021-01-06 21:06:00,524 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-06 21:06:00,798 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-06 21:06:01,048 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-06 21:06:01,654 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-06 21:06:02,014 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2021-01-06 21:06:02,506 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2021-01-06 21:06:02,981 WARN L197 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2021-01-06 21:06:03,570 WARN L197 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2021-01-06 21:06:04,189 WARN L197 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2021-01-06 21:06:04,930 WARN L197 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 119 [2021-01-06 21:06:05,721 WARN L197 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 128 [2021-01-06 21:06:06,644 WARN L197 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 139 [2021-01-06 21:06:07,028 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-01-06 21:06:07,412 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-01-06 21:06:07,665 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-01-06 21:06:07,983 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-01-06 21:06:08,441 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-01-06 21:06:09,000 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-01-06 21:06:09,163 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2021-01-06 21:06:09,765 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2021-01-06 21:06:10,158 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-01-06 21:06:10,925 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-01-06 21:06:11,234 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-01-06 21:06:11,970 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-01-06 21:06:12,393 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2021-01-06 21:06:13,170 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2021-01-06 21:06:22,464 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-01-06 21:06:25,963 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-06 21:06:36,160 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-01-06 21:06:47,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:06:47,451 INFO L93 Difference]: Finished difference Result 82343 states and 120778 transitions. [2021-01-06 21:06:47,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-01-06 21:06:47,452 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 88 [2021-01-06 21:06:47,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:06:47,541 INFO L225 Difference]: With dead ends: 82343 [2021-01-06 21:06:47,541 INFO L226 Difference]: Without dead ends: 79763 [2021-01-06 21:06:47,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=856, Invalid=5150, Unknown=0, NotChecked=0, Total=6006 [2021-01-06 21:06:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79763 states. [2021-01-06 21:06:52,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79763 to 12529. [2021-01-06 21:06:52,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12529 states. [2021-01-06 21:06:52,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12529 states to 12529 states and 18314 transitions. [2021-01-06 21:06:52,142 INFO L78 Accepts]: Start accepts. Automaton has 12529 states and 18314 transitions. Word has length 88 [2021-01-06 21:06:52,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:06:52,142 INFO L481 AbstractCegarLoop]: Abstraction has 12529 states and 18314 transitions. [2021-01-06 21:06:52,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-01-06 21:06:52,142 INFO L276 IsEmpty]: Start isEmpty. Operand 12529 states and 18314 transitions. [2021-01-06 21:06:52,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-01-06 21:06:52,145 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:06:52,145 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] [2021-01-06 21:06:52,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-06 21:06:52,145 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:06:52,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:06:52,146 INFO L82 PathProgramCache]: Analyzing trace with hash -949937908, now seen corresponding path program 1 times [2021-01-06 21:06:52,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:06:52,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111599512] [2021-01-06 21:06:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:06:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:06:55,235 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 21:06:55,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111599512] [2021-01-06 21:06:55,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:06:55,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-01-06 21:06:55,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589365356] [2021-01-06 21:06:55,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-01-06 21:06:55,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:06:55,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-01-06 21:06:55,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1016, Unknown=0, NotChecked=0, Total=1122 [2021-01-06 21:06:55,237 INFO L87 Difference]: Start difference. First operand 12529 states and 18314 transitions. Second operand 34 states. [2021-01-06 21:06:55,907 WARN L197 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 110 [2021-01-06 21:06:56,511 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2021-01-06 21:06:56,783 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2021-01-06 21:06:57,115 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-01-06 21:06:57,394 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-01-06 21:06:57,683 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2021-01-06 21:06:57,964 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-01-06 21:06:58,700 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-01-06 21:06:59,080 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-01-06 21:06:59,568 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-06 21:07:00,086 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-01-06 21:07:00,750 WARN L197 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2021-01-06 21:07:01,469 WARN L197 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 101 [2021-01-06 21:07:02,320 WARN L197 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 111 [2021-01-06 21:07:03,264 WARN L197 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 122 [2021-01-06 21:07:04,359 WARN L197 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 137 [2021-01-06 21:07:04,813 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-01-06 21:07:05,262 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-01-06 21:07:05,566 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-01-06 21:07:05,924 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-01-06 21:07:06,441 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-01-06 21:07:07,075 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-01-06 21:07:07,258 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2021-01-06 21:07:08,133 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2021-01-06 21:07:08,854 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2021-01-06 21:07:09,217 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2021-01-06 21:07:09,895 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-01-06 21:07:10,444 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-01-06 21:07:11,300 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2021-01-06 21:07:11,645 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-01-06 21:07:12,055 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2021-01-06 21:07:18,565 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2021-01-06 21:07:22,149 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-01-06 21:07:22,869 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-01-06 21:07:27,125 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2021-01-06 21:07:40,976 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2021-01-06 21:08:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:08:00,772 INFO L93 Difference]: Finished difference Result 112769 states and 165479 transitions. [2021-01-06 21:08:00,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-01-06 21:08:00,775 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 88 [2021-01-06 21:08:00,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:08:00,912 INFO L225 Difference]: With dead ends: 112769 [2021-01-06 21:08:00,912 INFO L226 Difference]: Without dead ends: 110190 [2021-01-06 21:08:01,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1447 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=898, Invalid=5582, Unknown=0, NotChecked=0, Total=6480 [2021-01-06 21:08:01,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110190 states. [2021-01-06 21:08:06,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110190 to 12548. [2021-01-06 21:08:06,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12548 states. [2021-01-06 21:08:06,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12548 states to 12548 states and 18339 transitions. [2021-01-06 21:08:06,242 INFO L78 Accepts]: Start accepts. Automaton has 12548 states and 18339 transitions. Word has length 88 [2021-01-06 21:08:06,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:08:06,242 INFO L481 AbstractCegarLoop]: Abstraction has 12548 states and 18339 transitions. [2021-01-06 21:08:06,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-01-06 21:08:06,242 INFO L276 IsEmpty]: Start isEmpty. Operand 12548 states and 18339 transitions. [2021-01-06 21:08:06,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-01-06 21:08:06,244 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:08:06,244 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] [2021-01-06 21:08:06,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-06 21:08:06,245 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:08:06,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:08:06,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1496853068, now seen corresponding path program 1 times [2021-01-06 21:08:06,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:08:06,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648676923] [2021-01-06 21:08:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:08:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:08:08,849 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 21:08:08,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648676923] [2021-01-06 21:08:08,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:08:08,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-01-06 21:08:08,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120315067] [2021-01-06 21:08:08,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-01-06 21:08:08,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:08:08,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-01-06 21:08:08,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=978, Unknown=0, NotChecked=0, Total=1056 [2021-01-06 21:08:08,851 INFO L87 Difference]: Start difference. First operand 12548 states and 18339 transitions. Second operand 33 states. [2021-01-06 21:08:09,383 WARN L197 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2021-01-06 21:08:09,957 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-06 21:08:10,195 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2021-01-06 21:08:10,495 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2021-01-06 21:08:10,809 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2021-01-06 21:08:11,125 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2021-01-06 21:08:11,452 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-01-06 21:08:11,769 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2021-01-06 21:08:12,578 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-01-06 21:08:12,960 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-01-06 21:08:13,386 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-01-06 21:08:13,822 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-01-06 21:08:14,406 WARN L197 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2021-01-06 21:08:15,003 WARN L197 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2021-01-06 21:08:15,788 WARN L197 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2021-01-06 21:08:16,586 WARN L197 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2021-01-06 21:08:17,545 WARN L197 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 109 [2021-01-06 21:08:18,045 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2021-01-06 21:08:18,506 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2021-01-06 21:08:18,778 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-01-06 21:08:19,686 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-01-06 21:08:20,953 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-06 21:08:21,720 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-01-06 21:08:22,914 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-06 21:08:23,845 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47