/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_floodmax.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:29:02,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:29:02,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:29:02,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:29:02,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:29:02,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:29:02,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:29:02,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:29:02,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:29:02,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:29:02,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:29:02,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:29:02,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:29:02,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:29:02,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:29:02,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:29:02,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:29:02,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:29:02,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:29:02,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:29:02,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:29:02,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:29:02,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:29:02,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:29:02,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 10:29:02,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 10:29:02,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 10:29:02,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 10:29:02,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 10:29:02,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 10:29:02,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:29:02,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:29:02,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:29:02,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:29:02,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:29:02,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:29:02,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:29:02,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:29:02,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:29:02,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:29:02,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:29:02,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 10:29:02,972 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:29:02,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:29:02,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:29:02,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:29:02,975 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:29:02,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:29:02,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:29:02,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:29:02,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:29:02,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:29:02,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:29:02,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:29:02,977 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:29:02,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:29:02,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:29:02,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:29:02,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:29:02,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:29:02,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:29:02,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:29:02,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:29:02,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:29:02,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:29:02,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:29:02,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:29:02,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:29:03,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:29:03,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:29:03,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:29:03,431 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:29:03,433 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:29:03,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-12-23 10:29:03,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/db982d744/57ed8c2a7ac743a2a84c4ef0ec697071/FLAGdd94361da [2020-12-23 10:29:04,235 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:29:04,235 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-12-23 10:29:04,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/db982d744/57ed8c2a7ac743a2a84c4ef0ec697071/FLAGdd94361da [2020-12-23 10:29:04,504 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/db982d744/57ed8c2a7ac743a2a84c4ef0ec697071 [2020-12-23 10:29:04,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:29:04,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:29:04,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:29:04,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:29:04,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:29:04,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:29:04" (1/1) ... [2020-12-23 10:29:04,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414dcda2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:04, skipping insertion in model container [2020-12-23 10:29:04,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:29:04" (1/1) ... [2020-12-23 10:29:04,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:29:04,590 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[~ep12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep13~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep23~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep31~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep32~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,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[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,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[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__r121~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r131~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r211~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r231~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r311~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r321~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r122~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r132~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r212~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r232~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r312~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r322~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1732~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1860~0,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[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1978~0,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,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_2099~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__return_2222~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2223_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_4~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~3,] [2020-12-23 10:29:05,008 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_floodmax.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[14115,14128] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~__return_2331~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2223_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p32_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_1~2,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p23_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_1~2,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p13_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_1~2,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_2236~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] [2020-12-23 10:29:05,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:29:05,155 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[~ep12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep13~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep23~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep31~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep32~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,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[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,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[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__r121~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r131~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r211~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r231~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r311~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r321~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r122~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r132~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r212~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r232~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r312~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r322~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1732~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1860~0,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[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1978~0,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,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_2099~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__return_2222~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2223_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_4~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~3,] [2020-12-23 10:29:05,286 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_floodmax.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[14115,14128] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~__return_2331~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2223_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p32_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_1~2,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p23_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_1~2,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p13_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_1~2,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_2236~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] [2020-12-23 10:29:05,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:29:05,385 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:29:05,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05 WrapperNode [2020-12-23 10:29:05,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:29:05,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:29:05,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:29:05,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:29:05,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05" (1/1) ... [2020-12-23 10:29:05,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05" (1/1) ... [2020-12-23 10:29:05,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:29:05,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:29:05,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:29:05,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:29:05,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05" (1/1) ... [2020-12-23 10:29:05,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05" (1/1) ... [2020-12-23 10:29:05,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05" (1/1) ... [2020-12-23 10:29:05,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05" (1/1) ... [2020-12-23 10:29:05,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05" (1/1) ... [2020-12-23 10:29:05,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05" (1/1) ... [2020-12-23 10:29:05,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05" (1/1) ... [2020-12-23 10:29:05,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:29:05,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:29:05,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:29:05,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:29:05,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:29:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:29:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:29:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:29:05,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:29:07,270 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:29:07,270 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:29:07,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:29:07 BoogieIcfgContainer [2020-12-23 10:29:07,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:29:07,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:29:07,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:29:07,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:29:07,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:29:04" (1/3) ... [2020-12-23 10:29:07,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ebd622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:29:07, skipping insertion in model container [2020-12-23 10:29:07,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:29:05" (2/3) ... [2020-12-23 10:29:07,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ebd622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:29:07, skipping insertion in model container [2020-12-23 10:29:07,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:29:07" (3/3) ... [2020-12-23 10:29:07,289 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-12-23 10:29:07,295 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:29:07,301 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:29:07,319 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:29:07,348 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:29:07,348 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:29:07,348 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:29:07,348 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:29:07,349 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:29:07,349 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:29:07,349 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:29:07,349 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:29:07,371 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states. [2020-12-23 10:29:07,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-23 10:29:07,387 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:07,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:07,388 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:07,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:07,395 INFO L82 PathProgramCache]: Analyzing trace with hash 574427721, now seen corresponding path program 1 times [2020-12-23 10:29:07,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:07,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85230718] [2020-12-23 10:29:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:08,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:08,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85230718] [2020-12-23 10:29:08,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:08,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:29:08,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303609868] [2020-12-23 10:29:08,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:29:08,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:08,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:29:08,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:08,086 INFO L87 Difference]: Start difference. First operand 305 states. Second operand 3 states. [2020-12-23 10:29:08,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:08,287 INFO L93 Difference]: Finished difference Result 612 states and 1078 transitions. [2020-12-23 10:29:08,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:29:08,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-12-23 10:29:08,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:08,318 INFO L225 Difference]: With dead ends: 612 [2020-12-23 10:29:08,318 INFO L226 Difference]: Without dead ends: 495 [2020-12-23 10:29:08,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:08,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-12-23 10:29:08,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 493. [2020-12-23 10:29:08,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2020-12-23 10:29:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 736 transitions. [2020-12-23 10:29:08,422 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 736 transitions. Word has length 144 [2020-12-23 10:29:08,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:08,423 INFO L481 AbstractCegarLoop]: Abstraction has 493 states and 736 transitions. [2020-12-23 10:29:08,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:29:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 736 transitions. [2020-12-23 10:29:08,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-23 10:29:08,429 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:08,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:08,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:29:08,430 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:08,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:08,431 INFO L82 PathProgramCache]: Analyzing trace with hash 505056235, now seen corresponding path program 1 times [2020-12-23 10:29:08,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:08,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788423107] [2020-12-23 10:29:08,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:08,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:08,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788423107] [2020-12-23 10:29:08,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:08,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:29:08,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799527058] [2020-12-23 10:29:08,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:29:08,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:08,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:29:08,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:08,753 INFO L87 Difference]: Start difference. First operand 493 states and 736 transitions. Second operand 3 states. [2020-12-23 10:29:08,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:08,879 INFO L93 Difference]: Finished difference Result 1063 states and 1633 transitions. [2020-12-23 10:29:08,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:29:08,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-12-23 10:29:08,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:08,888 INFO L225 Difference]: With dead ends: 1063 [2020-12-23 10:29:08,889 INFO L226 Difference]: Without dead ends: 865 [2020-12-23 10:29:08,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:08,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2020-12-23 10:29:08,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 863. [2020-12-23 10:29:08,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2020-12-23 10:29:08,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1300 transitions. [2020-12-23 10:29:08,953 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1300 transitions. Word has length 144 [2020-12-23 10:29:08,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:08,954 INFO L481 AbstractCegarLoop]: Abstraction has 863 states and 1300 transitions. [2020-12-23 10:29:08,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:29:08,955 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1300 transitions. [2020-12-23 10:29:08,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-23 10:29:08,960 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:08,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:08,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:29:08,961 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:08,962 INFO L82 PathProgramCache]: Analyzing trace with hash 459957428, now seen corresponding path program 1 times [2020-12-23 10:29:08,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:08,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000949705] [2020-12-23 10:29:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:09,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:09,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000949705] [2020-12-23 10:29:09,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:09,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:29:09,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594966269] [2020-12-23 10:29:09,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:29:09,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:09,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:29:09,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:29:09,279 INFO L87 Difference]: Start difference. First operand 863 states and 1300 transitions. Second operand 4 states. [2020-12-23 10:29:09,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:09,441 INFO L93 Difference]: Finished difference Result 2524 states and 3793 transitions. [2020-12-23 10:29:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:29:09,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 144 [2020-12-23 10:29:09,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:09,451 INFO L225 Difference]: With dead ends: 2524 [2020-12-23 10:29:09,451 INFO L226 Difference]: Without dead ends: 1670 [2020-12-23 10:29:09,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:29:09,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2020-12-23 10:29:09,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1668. [2020-12-23 10:29:09,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2020-12-23 10:29:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2486 transitions. [2020-12-23 10:29:09,541 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2486 transitions. Word has length 144 [2020-12-23 10:29:09,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:09,541 INFO L481 AbstractCegarLoop]: Abstraction has 1668 states and 2486 transitions. [2020-12-23 10:29:09,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:29:09,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2486 transitions. [2020-12-23 10:29:09,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-12-23 10:29:09,546 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:09,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:09,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:29:09,547 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:09,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:09,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1789583768, now seen corresponding path program 1 times [2020-12-23 10:29:09,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:09,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391300383] [2020-12-23 10:29:09,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:09,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391300383] [2020-12-23 10:29:09,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:09,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:29:09,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438738377] [2020-12-23 10:29:09,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:29:09,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:09,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:29:09,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:09,625 INFO L87 Difference]: Start difference. First operand 1668 states and 2486 transitions. Second operand 3 states. [2020-12-23 10:29:09,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:09,839 INFO L93 Difference]: Finished difference Result 4966 states and 7396 transitions. [2020-12-23 10:29:09,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:29:09,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-12-23 10:29:09,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:09,867 INFO L225 Difference]: With dead ends: 4966 [2020-12-23 10:29:09,867 INFO L226 Difference]: Without dead ends: 3326 [2020-12-23 10:29:09,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:09,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3326 states. [2020-12-23 10:29:10,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3326 to 1670. [2020-12-23 10:29:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1670 states. [2020-12-23 10:29:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2488 transitions. [2020-12-23 10:29:10,070 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2488 transitions. Word has length 145 [2020-12-23 10:29:10,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:10,070 INFO L481 AbstractCegarLoop]: Abstraction has 1670 states and 2488 transitions. [2020-12-23 10:29:10,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:29:10,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2488 transitions. [2020-12-23 10:29:10,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-12-23 10:29:10,075 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:10,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:10,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:29:10,076 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:10,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:10,076 INFO L82 PathProgramCache]: Analyzing trace with hash 338353525, now seen corresponding path program 1 times [2020-12-23 10:29:10,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:10,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508604022] [2020-12-23 10:29:10,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:10,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:10,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508604022] [2020-12-23 10:29:10,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:10,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:29:10,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439162776] [2020-12-23 10:29:10,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:29:10,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:10,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:29:10,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:29:10,509 INFO L87 Difference]: Start difference. First operand 1670 states and 2488 transitions. Second operand 4 states. [2020-12-23 10:29:10,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:10,864 INFO L93 Difference]: Finished difference Result 4862 states and 7224 transitions. [2020-12-23 10:29:10,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:29:10,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2020-12-23 10:29:10,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:10,882 INFO L225 Difference]: With dead ends: 4862 [2020-12-23 10:29:10,883 INFO L226 Difference]: Without dead ends: 3222 [2020-12-23 10:29:10,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:29:10,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2020-12-23 10:29:11,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 3220. [2020-12-23 10:29:11,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3220 states. [2020-12-23 10:29:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 4744 transitions. [2020-12-23 10:29:11,136 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 4744 transitions. Word has length 146 [2020-12-23 10:29:11,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:11,136 INFO L481 AbstractCegarLoop]: Abstraction has 3220 states and 4744 transitions. [2020-12-23 10:29:11,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:29:11,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 4744 transitions. [2020-12-23 10:29:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-23 10:29:11,142 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:11,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:11,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:29:11,143 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:11,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:11,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1154912631, now seen corresponding path program 1 times [2020-12-23 10:29:11,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:11,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141334854] [2020-12-23 10:29:11,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:11,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:11,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141334854] [2020-12-23 10:29:11,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:11,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:29:11,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543922602] [2020-12-23 10:29:11,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:29:11,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:11,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:29:11,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:11,246 INFO L87 Difference]: Start difference. First operand 3220 states and 4744 transitions. Second operand 3 states. [2020-12-23 10:29:11,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:11,669 INFO L93 Difference]: Finished difference Result 9584 states and 14112 transitions. [2020-12-23 10:29:11,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:29:11,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-12-23 10:29:11,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:11,704 INFO L225 Difference]: With dead ends: 9584 [2020-12-23 10:29:11,704 INFO L226 Difference]: Without dead ends: 6408 [2020-12-23 10:29:11,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:11,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6408 states. [2020-12-23 10:29:12,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6408 to 3224. [2020-12-23 10:29:12,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3224 states. [2020-12-23 10:29:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3224 states to 3224 states and 4748 transitions. [2020-12-23 10:29:12,017 INFO L78 Accepts]: Start accepts. Automaton has 3224 states and 4748 transitions. Word has length 147 [2020-12-23 10:29:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:12,017 INFO L481 AbstractCegarLoop]: Abstraction has 3224 states and 4748 transitions. [2020-12-23 10:29:12,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:29:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3224 states and 4748 transitions. [2020-12-23 10:29:12,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-12-23 10:29:12,023 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:12,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:12,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:29:12,023 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:12,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:12,024 INFO L82 PathProgramCache]: Analyzing trace with hash -2056376896, now seen corresponding path program 1 times [2020-12-23 10:29:12,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:12,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126425922] [2020-12-23 10:29:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:12,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:12,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126425922] [2020-12-23 10:29:12,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:12,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:29:12,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103198914] [2020-12-23 10:29:12,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:29:12,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:12,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:29:12,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:12,141 INFO L87 Difference]: Start difference. First operand 3224 states and 4748 transitions. Second operand 3 states. [2020-12-23 10:29:12,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:12,585 INFO L93 Difference]: Finished difference Result 8505 states and 12535 transitions. [2020-12-23 10:29:12,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:29:12,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-12-23 10:29:12,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:12,614 INFO L225 Difference]: With dead ends: 8505 [2020-12-23 10:29:12,614 INFO L226 Difference]: Without dead ends: 5589 [2020-12-23 10:29:12,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:12,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5589 states. [2020-12-23 10:29:13,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5589 to 5587. [2020-12-23 10:29:13,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5587 states. [2020-12-23 10:29:13,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5587 states to 5587 states and 8109 transitions. [2020-12-23 10:29:13,051 INFO L78 Accepts]: Start accepts. Automaton has 5587 states and 8109 transitions. Word has length 148 [2020-12-23 10:29:13,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:13,051 INFO L481 AbstractCegarLoop]: Abstraction has 5587 states and 8109 transitions. [2020-12-23 10:29:13,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:29:13,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5587 states and 8109 transitions. [2020-12-23 10:29:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-12-23 10:29:13,061 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:13,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:13,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:29:13,062 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:13,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:13,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1182249245, now seen corresponding path program 1 times [2020-12-23 10:29:13,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:13,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668534893] [2020-12-23 10:29:13,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:13,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:13,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668534893] [2020-12-23 10:29:13,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:13,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:29:13,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511424185] [2020-12-23 10:29:13,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:29:13,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:13,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:29:13,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:29:13,275 INFO L87 Difference]: Start difference. First operand 5587 states and 8109 transitions. Second operand 5 states. [2020-12-23 10:29:14,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:14,044 INFO L93 Difference]: Finished difference Result 16093 states and 23348 transitions. [2020-12-23 10:29:14,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:29:14,044 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-12-23 10:29:14,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:14,081 INFO L225 Difference]: With dead ends: 16093 [2020-12-23 10:29:14,081 INFO L226 Difference]: Without dead ends: 10543 [2020-12-23 10:29:14,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:29:14,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10543 states. [2020-12-23 10:29:14,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10543 to 10541. [2020-12-23 10:29:14,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10541 states. [2020-12-23 10:29:14,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10541 states to 10541 states and 15140 transitions. [2020-12-23 10:29:14,924 INFO L78 Accepts]: Start accepts. Automaton has 10541 states and 15140 transitions. Word has length 148 [2020-12-23 10:29:14,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:14,924 INFO L481 AbstractCegarLoop]: Abstraction has 10541 states and 15140 transitions. [2020-12-23 10:29:14,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:29:14,925 INFO L276 IsEmpty]: Start isEmpty. Operand 10541 states and 15140 transitions. [2020-12-23 10:29:14,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-12-23 10:29:14,942 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:14,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:14,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:29:14,943 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:14,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:14,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1313778358, now seen corresponding path program 1 times [2020-12-23 10:29:14,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:14,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874442315] [2020-12-23 10:29:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:15,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:15,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874442315] [2020-12-23 10:29:15,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:15,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:29:15,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761525385] [2020-12-23 10:29:15,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:29:15,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:15,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:29:15,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:29:15,191 INFO L87 Difference]: Start difference. First operand 10541 states and 15140 transitions. Second operand 4 states. [2020-12-23 10:29:15,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:15,954 INFO L93 Difference]: Finished difference Result 21315 states and 30516 transitions. [2020-12-23 10:29:15,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:29:15,954 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-12-23 10:29:15,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:15,977 INFO L225 Difference]: With dead ends: 21315 [2020-12-23 10:29:15,977 INFO L226 Difference]: Without dead ends: 10891 [2020-12-23 10:29:15,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:29:16,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2020-12-23 10:29:16,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 10749. [2020-12-23 10:29:16,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10749 states. [2020-12-23 10:29:16,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10749 states to 10749 states and 15368 transitions. [2020-12-23 10:29:16,797 INFO L78 Accepts]: Start accepts. Automaton has 10749 states and 15368 transitions. Word has length 148 [2020-12-23 10:29:16,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:16,798 INFO L481 AbstractCegarLoop]: Abstraction has 10749 states and 15368 transitions. [2020-12-23 10:29:16,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:29:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 10749 states and 15368 transitions. [2020-12-23 10:29:16,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-12-23 10:29:16,815 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:16,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:16,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:29:16,815 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:16,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:16,816 INFO L82 PathProgramCache]: Analyzing trace with hash -618796246, now seen corresponding path program 1 times [2020-12-23 10:29:16,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:16,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491763439] [2020-12-23 10:29:16,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:16,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491763439] [2020-12-23 10:29:16,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:16,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:29:16,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162855787] [2020-12-23 10:29:16,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:29:16,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:16,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:29:16,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:16,893 INFO L87 Difference]: Start difference. First operand 10749 states and 15368 transitions. Second operand 3 states. [2020-12-23 10:29:18,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:18,360 INFO L93 Difference]: Finished difference Result 31557 states and 45226 transitions. [2020-12-23 10:29:18,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:29:18,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-12-23 10:29:18,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:18,406 INFO L225 Difference]: With dead ends: 31557 [2020-12-23 10:29:18,406 INFO L226 Difference]: Without dead ends: 21373 [2020-12-23 10:29:18,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:18,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21373 states. [2020-12-23 10:29:19,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21373 to 10765. [2020-12-23 10:29:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10765 states. [2020-12-23 10:29:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10765 states to 10765 states and 15384 transitions. [2020-12-23 10:29:19,233 INFO L78 Accepts]: Start accepts. Automaton has 10765 states and 15384 transitions. Word has length 149 [2020-12-23 10:29:19,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:19,233 INFO L481 AbstractCegarLoop]: Abstraction has 10765 states and 15384 transitions. [2020-12-23 10:29:19,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:29:19,233 INFO L276 IsEmpty]: Start isEmpty. Operand 10765 states and 15384 transitions. [2020-12-23 10:29:19,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-12-23 10:29:19,249 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:19,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:19,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:29:19,250 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:19,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:19,250 INFO L82 PathProgramCache]: Analyzing trace with hash 696847479, now seen corresponding path program 1 times [2020-12-23 10:29:19,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:19,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163194712] [2020-12-23 10:29:19,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:19,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:19,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163194712] [2020-12-23 10:29:19,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:19,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:29:19,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047922601] [2020-12-23 10:29:19,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:29:19,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:19,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:29:19,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:29:19,435 INFO L87 Difference]: Start difference. First operand 10765 states and 15384 transitions. Second operand 4 states. [2020-12-23 10:29:20,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:20,074 INFO L93 Difference]: Finished difference Result 21520 states and 30754 transitions. [2020-12-23 10:29:20,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:29:20,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 150 [2020-12-23 10:29:20,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:20,170 INFO L225 Difference]: With dead ends: 21520 [2020-12-23 10:29:20,170 INFO L226 Difference]: Without dead ends: 10763 [2020-12-23 10:29:20,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:29:20,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10763 states. [2020-12-23 10:29:20,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 10763. [2020-12-23 10:29:20,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10763 states. [2020-12-23 10:29:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10763 states to 10763 states and 15380 transitions. [2020-12-23 10:29:20,866 INFO L78 Accepts]: Start accepts. Automaton has 10763 states and 15380 transitions. Word has length 150 [2020-12-23 10:29:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:20,866 INFO L481 AbstractCegarLoop]: Abstraction has 10763 states and 15380 transitions. [2020-12-23 10:29:20,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:29:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand 10763 states and 15380 transitions. [2020-12-23 10:29:20,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-12-23 10:29:20,883 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:20,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:20,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 10:29:20,884 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:20,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:20,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1219131811, now seen corresponding path program 1 times [2020-12-23 10:29:20,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:20,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267241848] [2020-12-23 10:29:20,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:20,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:20,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267241848] [2020-12-23 10:29:20,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:20,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:29:20,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248556830] [2020-12-23 10:29:20,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:29:20,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:20,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:29:20,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:20,979 INFO L87 Difference]: Start difference. First operand 10763 states and 15380 transitions. Second operand 3 states. [2020-12-23 10:29:22,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:22,014 INFO L93 Difference]: Finished difference Result 25628 states and 36743 transitions. [2020-12-23 10:29:22,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:29:22,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-12-23 10:29:22,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:22,050 INFO L225 Difference]: With dead ends: 25628 [2020-12-23 10:29:22,050 INFO L226 Difference]: Without dead ends: 15980 [2020-12-23 10:29:22,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:22,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15980 states. [2020-12-23 10:29:23,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15980 to 15978. [2020-12-23 10:29:23,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15978 states. [2020-12-23 10:29:23,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15978 states to 15978 states and 22453 transitions. [2020-12-23 10:29:23,248 INFO L78 Accepts]: Start accepts. Automaton has 15978 states and 22453 transitions. Word has length 150 [2020-12-23 10:29:23,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:23,249 INFO L481 AbstractCegarLoop]: Abstraction has 15978 states and 22453 transitions. [2020-12-23 10:29:23,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:29:23,249 INFO L276 IsEmpty]: Start isEmpty. Operand 15978 states and 22453 transitions. [2020-12-23 10:29:23,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-23 10:29:23,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:23,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:23,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 10:29:23,268 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:23,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:23,269 INFO L82 PathProgramCache]: Analyzing trace with hash 204880059, now seen corresponding path program 1 times [2020-12-23 10:29:23,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:23,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082941117] [2020-12-23 10:29:23,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:23,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:23,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082941117] [2020-12-23 10:29:23,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:23,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:29:23,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906817259] [2020-12-23 10:29:23,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:29:23,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:23,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:29:23,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:23,353 INFO L87 Difference]: Start difference. First operand 15978 states and 22453 transitions. Second operand 3 states. [2020-12-23 10:29:25,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:25,066 INFO L93 Difference]: Finished difference Result 42898 states and 61037 transitions. [2020-12-23 10:29:25,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:29:25,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2020-12-23 10:29:25,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:25,104 INFO L225 Difference]: With dead ends: 42898 [2020-12-23 10:29:25,105 INFO L226 Difference]: Without dead ends: 29628 [2020-12-23 10:29:25,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:25,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29628 states. [2020-12-23 10:29:26,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29628 to 29626. [2020-12-23 10:29:26,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29626 states. [2020-12-23 10:29:26,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29626 states to 29626 states and 41633 transitions. [2020-12-23 10:29:26,934 INFO L78 Accepts]: Start accepts. Automaton has 29626 states and 41633 transitions. Word has length 156 [2020-12-23 10:29:26,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:26,935 INFO L481 AbstractCegarLoop]: Abstraction has 29626 states and 41633 transitions. [2020-12-23 10:29:26,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:29:26,935 INFO L276 IsEmpty]: Start isEmpty. Operand 29626 states and 41633 transitions. [2020-12-23 10:29:26,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-23 10:29:26,965 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:26,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:26,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 10:29:26,966 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:26,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:26,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1634156586, now seen corresponding path program 1 times [2020-12-23 10:29:26,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:26,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609918406] [2020-12-23 10:29:26,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:27,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:27,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609918406] [2020-12-23 10:29:27,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:27,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:29:27,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623552768] [2020-12-23 10:29:27,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:29:27,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:27,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:29:27,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:29:27,133 INFO L87 Difference]: Start difference. First operand 29626 states and 41633 transitions. Second operand 4 states. [2020-12-23 10:29:30,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:30,251 INFO L93 Difference]: Finished difference Result 76767 states and 107981 transitions. [2020-12-23 10:29:30,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:29:30,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 156 [2020-12-23 10:29:30,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:30,299 INFO L225 Difference]: With dead ends: 76767 [2020-12-23 10:29:30,299 INFO L226 Difference]: Without dead ends: 47501 [2020-12-23 10:29:30,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:29:30,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47501 states. [2020-12-23 10:29:33,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47501 to 47499. [2020-12-23 10:29:33,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47499 states. [2020-12-23 10:29:33,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47499 states to 47499 states and 65936 transitions. [2020-12-23 10:29:33,621 INFO L78 Accepts]: Start accepts. Automaton has 47499 states and 65936 transitions. Word has length 156 [2020-12-23 10:29:33,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:33,622 INFO L481 AbstractCegarLoop]: Abstraction has 47499 states and 65936 transitions. [2020-12-23 10:29:33,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:29:33,622 INFO L276 IsEmpty]: Start isEmpty. Operand 47499 states and 65936 transitions. [2020-12-23 10:29:33,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-12-23 10:29:33,651 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:33,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:33,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 10:29:33,652 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:33,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:33,653 INFO L82 PathProgramCache]: Analyzing trace with hash 926322572, now seen corresponding path program 1 times [2020-12-23 10:29:33,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:33,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571993016] [2020-12-23 10:29:33,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:33,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571993016] [2020-12-23 10:29:33,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:33,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:29:33,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320841113] [2020-12-23 10:29:33,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:29:33,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:33,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:29:33,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:29:33,806 INFO L87 Difference]: Start difference. First operand 47499 states and 65936 transitions. Second operand 4 states. [2020-12-23 10:29:36,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:36,394 INFO L93 Difference]: Finished difference Result 75789 states and 105192 transitions. [2020-12-23 10:29:36,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:29:36,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2020-12-23 10:29:36,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:36,436 INFO L225 Difference]: With dead ends: 75789 [2020-12-23 10:29:36,436 INFO L226 Difference]: Without dead ends: 38775 [2020-12-23 10:29:36,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:29:36,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38775 states. [2020-12-23 10:29:39,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38775 to 38775. [2020-12-23 10:29:39,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38775 states. [2020-12-23 10:29:39,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38775 states to 38775 states and 53621 transitions. [2020-12-23 10:29:39,093 INFO L78 Accepts]: Start accepts. Automaton has 38775 states and 53621 transitions. Word has length 158 [2020-12-23 10:29:39,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:39,093 INFO L481 AbstractCegarLoop]: Abstraction has 38775 states and 53621 transitions. [2020-12-23 10:29:39,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:29:39,094 INFO L276 IsEmpty]: Start isEmpty. Operand 38775 states and 53621 transitions. [2020-12-23 10:29:39,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-12-23 10:29:39,119 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:39,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:39,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 10:29:39,120 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:39,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:39,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1764073122, now seen corresponding path program 1 times [2020-12-23 10:29:39,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:39,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776832225] [2020-12-23 10:29:39,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:39,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776832225] [2020-12-23 10:29:39,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:39,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:29:39,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73127121] [2020-12-23 10:29:39,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 10:29:39,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:39,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 10:29:39,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 10:29:39,398 INFO L87 Difference]: Start difference. First operand 38775 states and 53621 transitions. Second operand 9 states. [2020-12-23 10:29:43,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:43,954 INFO L93 Difference]: Finished difference Result 90373 states and 128849 transitions. [2020-12-23 10:29:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:29:43,955 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 164 [2020-12-23 10:29:43,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:44,033 INFO L225 Difference]: With dead ends: 90373 [2020-12-23 10:29:44,034 INFO L226 Difference]: Without dead ends: 72739 [2020-12-23 10:29:44,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 10:29:44,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72739 states. [2020-12-23 10:29:48,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72739 to 72737. [2020-12-23 10:29:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72737 states. [2020-12-23 10:29:48,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72737 states to 72737 states and 100839 transitions. [2020-12-23 10:29:48,646 INFO L78 Accepts]: Start accepts. Automaton has 72737 states and 100839 transitions. Word has length 164 [2020-12-23 10:29:48,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:48,646 INFO L481 AbstractCegarLoop]: Abstraction has 72737 states and 100839 transitions. [2020-12-23 10:29:48,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 10:29:48,646 INFO L276 IsEmpty]: Start isEmpty. Operand 72737 states and 100839 transitions. [2020-12-23 10:29:48,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-12-23 10:29:48,698 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:48,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:29:48,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 10:29:48,699 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:48,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:48,700 INFO L82 PathProgramCache]: Analyzing trace with hash 283259954, now seen corresponding path program 1 times [2020-12-23 10:29:48,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:48,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676561958] [2020-12-23 10:29:48,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:49,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:49,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676561958] [2020-12-23 10:29:49,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:49,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:29:49,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826362780] [2020-12-23 10:29:49,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:29:49,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:49,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:29:49,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:29:49,164 INFO L87 Difference]: Start difference. First operand 72737 states and 100839 transitions. Second operand 5 states. [2020-12-23 10:29:56,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:56,625 INFO L93 Difference]: Finished difference Result 127529 states and 187019 transitions. [2020-12-23 10:29:56,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:29:56,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-12-23 10:29:56,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:56,778 INFO L225 Difference]: With dead ends: 127529 [2020-12-23 10:29:56,778 INFO L226 Difference]: Without dead ends: 112743 [2020-12-23 10:29:56,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:29:56,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112743 states. [2020-12-23 10:30:03,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112743 to 83297. [2020-12-23 10:30:03,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83297 states. [2020-12-23 10:30:03,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83297 states to 83297 states and 117311 transitions. [2020-12-23 10:30:03,262 INFO L78 Accepts]: Start accepts. Automaton has 83297 states and 117311 transitions. Word has length 164 [2020-12-23 10:30:03,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:30:03,262 INFO L481 AbstractCegarLoop]: Abstraction has 83297 states and 117311 transitions. [2020-12-23 10:30:03,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:30:03,269 INFO L276 IsEmpty]: Start isEmpty. Operand 83297 states and 117311 transitions. [2020-12-23 10:30:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-12-23 10:30:03,316 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:30:03,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:30:03,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 10:30:03,316 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:30:03,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:30:03,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1114803063, now seen corresponding path program 1 times [2020-12-23 10:30:03,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:30:03,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193463791] [2020-12-23 10:30:03,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:30:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:30:03,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:30:03,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193463791] [2020-12-23 10:30:03,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:30:03,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:30:03,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262429159] [2020-12-23 10:30:03,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:30:03,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:30:03,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:30:03,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:30:03,560 INFO L87 Difference]: Start difference. First operand 83297 states and 117311 transitions. Second operand 4 states. [2020-12-23 10:30:09,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:30:09,271 INFO L93 Difference]: Finished difference Result 117305 states and 170165 transitions. [2020-12-23 10:30:09,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:30:09,272 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2020-12-23 10:30:09,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:30:09,363 INFO L225 Difference]: With dead ends: 117305 [2020-12-23 10:30:09,364 INFO L226 Difference]: Without dead ends: 83299 [2020-12-23 10:30:09,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:30:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83299 states. [2020-12-23 10:30:15,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83299 to 83297. [2020-12-23 10:30:15,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83297 states. [2020-12-23 10:30:15,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83297 states to 83297 states and 116703 transitions. [2020-12-23 10:30:15,627 INFO L78 Accepts]: Start accepts. Automaton has 83297 states and 116703 transitions. Word has length 164 [2020-12-23 10:30:15,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:30:15,628 INFO L481 AbstractCegarLoop]: Abstraction has 83297 states and 116703 transitions. [2020-12-23 10:30:15,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:30:15,628 INFO L276 IsEmpty]: Start isEmpty. Operand 83297 states and 116703 transitions. [2020-12-23 10:30:15,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-12-23 10:30:15,666 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:30:15,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:30:15,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 10:30:15,666 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:30:15,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:30:15,667 INFO L82 PathProgramCache]: Analyzing trace with hash 44269025, now seen corresponding path program 1 times [2020-12-23 10:30:15,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:30:15,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757657428] [2020-12-23 10:30:15,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:30:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:30:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:30:15,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757657428] [2020-12-23 10:30:15,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:30:15,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:30:15,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126714632] [2020-12-23 10:30:15,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:30:15,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:30:15,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:30:15,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:30:15,836 INFO L87 Difference]: Start difference. First operand 83297 states and 116703 transitions. Second operand 4 states. [2020-12-23 10:30:20,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:30:20,637 INFO L93 Difference]: Finished difference Result 146758 states and 205650 transitions. [2020-12-23 10:30:20,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:30:20,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2020-12-23 10:30:20,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:30:20,715 INFO L225 Difference]: With dead ends: 146758 [2020-12-23 10:30:20,715 INFO L226 Difference]: Without dead ends: 63531 [2020-12-23 10:30:20,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:30:20,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63531 states. [2020-12-23 10:30:25,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63531 to 63531. [2020-12-23 10:30:25,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63531 states. [2020-12-23 10:30:25,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63531 states to 63531 states and 89033 transitions. [2020-12-23 10:30:25,500 INFO L78 Accepts]: Start accepts. Automaton has 63531 states and 89033 transitions. Word has length 164 [2020-12-23 10:30:25,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:30:25,500 INFO L481 AbstractCegarLoop]: Abstraction has 63531 states and 89033 transitions. [2020-12-23 10:30:25,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:30:25,500 INFO L276 IsEmpty]: Start isEmpty. Operand 63531 states and 89033 transitions. [2020-12-23 10:30:25,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-12-23 10:30:25,529 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:30:25,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:30:25,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 10:30:25,530 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:30:25,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:30:25,531 INFO L82 PathProgramCache]: Analyzing trace with hash -296065430, now seen corresponding path program 1 times [2020-12-23 10:30:25,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:30:25,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87358772] [2020-12-23 10:30:25,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:30:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:30:25,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:30:25,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87358772] [2020-12-23 10:30:25,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:30:25,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:30:25,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639188624] [2020-12-23 10:30:25,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:30:25,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:30:25,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:30:25,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:30:25,654 INFO L87 Difference]: Start difference. First operand 63531 states and 89033 transitions. Second operand 3 states. [2020-12-23 10:30:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:30:32,053 INFO L93 Difference]: Finished difference Result 115310 states and 167786 transitions. [2020-12-23 10:30:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:30:32,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2020-12-23 10:30:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:30:32,280 INFO L225 Difference]: With dead ends: 115310 [2020-12-23 10:30:32,280 INFO L226 Difference]: Without dead ends: 84213 [2020-12-23 10:30:32,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:30:32,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84213 states. [2020-12-23 10:30:38,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84213 to 79512. [2020-12-23 10:30:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79512 states. [2020-12-23 10:30:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79512 states to 79512 states and 112028 transitions. [2020-12-23 10:30:38,846 INFO L78 Accepts]: Start accepts. Automaton has 79512 states and 112028 transitions. Word has length 172 [2020-12-23 10:30:38,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:30:38,846 INFO L481 AbstractCegarLoop]: Abstraction has 79512 states and 112028 transitions. [2020-12-23 10:30:38,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:30:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 79512 states and 112028 transitions. [2020-12-23 10:30:38,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-12-23 10:30:38,878 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:30:38,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:30:38,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 10:30:38,879 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:30:38,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:30:38,880 INFO L82 PathProgramCache]: Analyzing trace with hash -2130569831, now seen corresponding path program 1 times [2020-12-23 10:30:38,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:30:38,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689404381] [2020-12-23 10:30:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:30:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:30:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:30:39,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689404381] [2020-12-23 10:30:39,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:30:39,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:30:39,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329963349] [2020-12-23 10:30:39,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:30:39,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:30:39,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:30:39,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:30:39,048 INFO L87 Difference]: Start difference. First operand 79512 states and 112028 transitions. Second operand 5 states. [2020-12-23 10:30:47,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:30:47,679 INFO L93 Difference]: Finished difference Result 129419 states and 188121 transitions. [2020-12-23 10:30:47,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:30:47,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2020-12-23 10:30:47,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:30:47,825 INFO L225 Difference]: With dead ends: 129419 [2020-12-23 10:30:47,825 INFO L226 Difference]: Without dead ends: 108723 [2020-12-23 10:30:47,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:30:47,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108723 states. [2020-12-23 10:30:54,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108723 to 82293. [2020-12-23 10:30:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82293 states. [2020-12-23 10:30:55,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82293 states to 82293 states and 116351 transitions. [2020-12-23 10:30:55,035 INFO L78 Accepts]: Start accepts. Automaton has 82293 states and 116351 transitions. Word has length 172 [2020-12-23 10:30:55,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:30:55,035 INFO L481 AbstractCegarLoop]: Abstraction has 82293 states and 116351 transitions. [2020-12-23 10:30:55,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:30:55,036 INFO L276 IsEmpty]: Start isEmpty. Operand 82293 states and 116351 transitions. [2020-12-23 10:30:55,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-12-23 10:30:55,069 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:30:55,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:30:55,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 10:30:55,069 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:30:55,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:30:55,069 INFO L82 PathProgramCache]: Analyzing trace with hash -77091141, now seen corresponding path program 1 times [2020-12-23 10:30:55,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:30:55,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058725497] [2020-12-23 10:30:55,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:30:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:30:55,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:30:55,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058725497] [2020-12-23 10:30:55,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:30:55,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 10:30:55,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149009145] [2020-12-23 10:30:55,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 10:30:55,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:30:55,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 10:30:55,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:30:55,608 INFO L87 Difference]: Start difference. First operand 82293 states and 116351 transitions. Second operand 8 states. [2020-12-23 10:31:02,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:31:02,120 INFO L93 Difference]: Finished difference Result 133877 states and 194009 transitions. [2020-12-23 10:31:02,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:31:02,120 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 172 [2020-12-23 10:31:02,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:31:02,221 INFO L225 Difference]: With dead ends: 133877 [2020-12-23 10:31:02,221 INFO L226 Difference]: Without dead ends: 82295 [2020-12-23 10:31:02,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-23 10:31:02,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82295 states. [2020-12-23 10:31:09,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82295 to 79470. [2020-12-23 10:31:09,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79470 states. [2020-12-23 10:31:09,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79470 states to 79470 states and 111440 transitions. [2020-12-23 10:31:09,227 INFO L78 Accepts]: Start accepts. Automaton has 79470 states and 111440 transitions. Word has length 172 [2020-12-23 10:31:09,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:31:09,227 INFO L481 AbstractCegarLoop]: Abstraction has 79470 states and 111440 transitions. [2020-12-23 10:31:09,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 10:31:09,227 INFO L276 IsEmpty]: Start isEmpty. Operand 79470 states and 111440 transitions. [2020-12-23 10:31:09,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-12-23 10:31:09,257 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:31:09,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:31:09,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 10:31:09,257 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:31:09,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:31:09,258 INFO L82 PathProgramCache]: Analyzing trace with hash 779270727, now seen corresponding path program 1 times [2020-12-23 10:31:09,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:31:09,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76127335] [2020-12-23 10:31:09,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:31:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:31:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:31:09,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76127335] [2020-12-23 10:31:09,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:31:09,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 10:31:09,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627165755] [2020-12-23 10:31:09,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 10:31:09,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:31:09,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 10:31:09,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-23 10:31:09,841 INFO L87 Difference]: Start difference. First operand 79470 states and 111440 transitions. Second operand 11 states. [2020-12-23 10:31:16,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:31:16,745 INFO L93 Difference]: Finished difference Result 157857 states and 221612 transitions. [2020-12-23 10:31:16,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:31:16,745 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 172 [2020-12-23 10:31:16,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:31:16,837 INFO L225 Difference]: With dead ends: 157857 [2020-12-23 10:31:16,837 INFO L226 Difference]: Without dead ends: 79470 [2020-12-23 10:31:16,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-12-23 10:31:16,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79470 states. [2020-12-23 10:31:24,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79470 to 79470. [2020-12-23 10:31:24,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79470 states. [2020-12-23 10:31:24,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79470 states to 79470 states and 109776 transitions. [2020-12-23 10:31:24,280 INFO L78 Accepts]: Start accepts. Automaton has 79470 states and 109776 transitions. Word has length 172 [2020-12-23 10:31:24,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:31:24,281 INFO L481 AbstractCegarLoop]: Abstraction has 79470 states and 109776 transitions. [2020-12-23 10:31:24,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 10:31:24,281 INFO L276 IsEmpty]: Start isEmpty. Operand 79470 states and 109776 transitions. [2020-12-23 10:31:24,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-12-23 10:31:24,316 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:31:24,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:31:24,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 10:31:24,316 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:31:24,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:31:24,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1437606036, now seen corresponding path program 1 times [2020-12-23 10:31:24,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:31:24,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644238510] [2020-12-23 10:31:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:31:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:31:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:31:24,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644238510] [2020-12-23 10:31:24,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:31:24,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:31:24,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328319966] [2020-12-23 10:31:24,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:31:24,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:31:24,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:31:24,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:31:24,647 INFO L87 Difference]: Start difference. First operand 79470 states and 109776 transitions. Second operand 4 states. [2020-12-23 10:31:31,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:31:31,434 INFO L93 Difference]: Finished difference Result 140186 states and 193472 transitions. [2020-12-23 10:31:31,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:31:31,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 172 [2020-12-23 10:31:31,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:31:31,530 INFO L225 Difference]: With dead ends: 140186 [2020-12-23 10:31:31,530 INFO L226 Difference]: Without dead ends: 79460 [2020-12-23 10:31:31,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:31:31,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79460 states. [2020-12-23 10:31:38,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79460 to 79460. [2020-12-23 10:31:38,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79460 states. [2020-12-23 10:31:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79460 states to 79460 states and 109761 transitions. [2020-12-23 10:31:38,830 INFO L78 Accepts]: Start accepts. Automaton has 79460 states and 109761 transitions. Word has length 172 [2020-12-23 10:31:38,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:31:38,830 INFO L481 AbstractCegarLoop]: Abstraction has 79460 states and 109761 transitions. [2020-12-23 10:31:38,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:31:38,830 INFO L276 IsEmpty]: Start isEmpty. Operand 79460 states and 109761 transitions. [2020-12-23 10:31:38,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-12-23 10:31:38,861 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:31:38,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:31:38,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 10:31:38,862 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:31:38,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:31:38,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1590934886, now seen corresponding path program 1 times [2020-12-23 10:31:38,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:31:38,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187530372] [2020-12-23 10:31:38,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:31:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:31:39,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:31:39,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187530372] [2020-12-23 10:31:39,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:31:39,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:31:39,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454331719] [2020-12-23 10:31:39,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:31:39,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:31:39,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:31:39,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:31:39,035 INFO L87 Difference]: Start difference. First operand 79460 states and 109761 transitions. Second operand 5 states. [2020-12-23 10:31:45,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:31:45,416 INFO L93 Difference]: Finished difference Result 148486 states and 204987 transitions. [2020-12-23 10:31:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:31:45,416 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2020-12-23 10:31:45,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:31:45,507 INFO L225 Difference]: With dead ends: 148486 [2020-12-23 10:31:45,507 INFO L226 Difference]: Without dead ends: 69345 [2020-12-23 10:31:45,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:31:45,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69345 states. [2020-12-23 10:31:52,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69345 to 69088. [2020-12-23 10:31:52,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69088 states. [2020-12-23 10:31:52,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69088 states to 69088 states and 95273 transitions. [2020-12-23 10:31:52,389 INFO L78 Accepts]: Start accepts. Automaton has 69088 states and 95273 transitions. Word has length 172 [2020-12-23 10:31:52,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:31:52,389 INFO L481 AbstractCegarLoop]: Abstraction has 69088 states and 95273 transitions. [2020-12-23 10:31:52,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:31:52,389 INFO L276 IsEmpty]: Start isEmpty. Operand 69088 states and 95273 transitions. [2020-12-23 10:31:52,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-12-23 10:31:52,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:31:52,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:31:52,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-23 10:31:52,416 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:31:52,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:31:52,417 INFO L82 PathProgramCache]: Analyzing trace with hash -2110023509, now seen corresponding path program 1 times [2020-12-23 10:31:52,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:31:52,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947955865] [2020-12-23 10:31:52,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:31:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:31:52,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:31:52,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947955865] [2020-12-23 10:31:52,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:31:52,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:31:52,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849407258] [2020-12-23 10:31:52,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:31:52,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:31:52,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:31:52,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:31:52,529 INFO L87 Difference]: Start difference. First operand 69088 states and 95273 transitions. Second operand 5 states.