/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 20:54:19,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 20:54:19,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 20:54:19,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 20:54:19,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 20:54:19,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 20:54:19,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 20:54:19,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 20:54:19,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 20:54:19,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 20:54:19,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 20:54:19,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 20:54:19,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 20:54:19,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 20:54:19,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 20:54:19,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 20:54:19,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 20:54:19,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 20:54:19,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 20:54:19,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 20:54:19,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 20:54:19,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 20:54:19,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 20:54:19,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 20:54:19,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 20:54:19,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 20:54:19,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 20:54:19,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 20:54:19,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 20:54:19,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 20:54:19,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 20:54:19,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 20:54:19,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 20:54:19,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 20:54:19,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 20:54:19,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 20:54:19,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 20:54:19,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 20:54:19,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 20:54:19,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 20:54:19,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 20:54:19,974 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 20:54:20,031 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 20:54:20,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 20:54:20,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 20:54:20,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 20:54:20,036 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 20:54:20,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 20:54:20,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 20:54:20,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 20:54:20,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 20:54:20,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 20:54:20,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 20:54:20,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 20:54:20,039 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 20:54:20,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 20:54:20,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 20:54:20,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 20:54:20,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 20:54:20,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:54:20,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 20:54:20,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 20:54:20,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 20:54:20,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 20:54:20,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 20:54:20,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 20:54:20,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 20:54:20,041 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 20:54:20,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 20:54:20,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 20:54:20,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 20:54:20,496 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 20:54:20,497 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 20:54:20,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2021-01-06 20:54:20,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0c2ec44c9/02c9e5668329483090b8301c425cb6c0/FLAG561be577e [2021-01-06 20:54:21,398 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 20:54:21,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2021-01-06 20:54:21,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0c2ec44c9/02c9e5668329483090b8301c425cb6c0/FLAG561be577e [2021-01-06 20:54:21,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0c2ec44c9/02c9e5668329483090b8301c425cb6c0 [2021-01-06 20:54:21,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 20:54:21,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 20:54:21,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 20:54:21,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 20:54:21,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 20:54:21,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:54:21" (1/1) ... [2021-01-06 20:54:21,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87e31a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:21, skipping insertion in model container [2021-01-06 20:54:21,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:54:21" (1/1) ... [2021-01-06 20:54:21,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 20:54:21,732 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1406~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_2236~0,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[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1546~0,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[~__tmp_1555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_1616~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1617_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] [2021-01-06 20:54:22,052 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7139,7152] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1623_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1559~0,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[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__return_1856~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_4~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~3,] [2021-01-06 20:54:22,122 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10026,10039] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~node3__m3~3,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~3,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~__return_2039~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_5~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~4,] [2021-01-06 20:54:22,147 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11117,11130] 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[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__return_2203~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_6~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~5,] [2021-01-06 20:54:22,162 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11723,11736] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,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[~node2__m2~3,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~3,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~4,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~4,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~__return_1770~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_7~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~6,] [2021-01-06 20:54:22,192 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13142,13155] 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[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~__return_1925~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_8~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~7,] [2021-01-06 20:54:22,215 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13748,13761] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1623_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~node3__m3~5,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~5,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~__return_2120~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_9~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~8,] [2021-01-06 20:54:22,228 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14719,14732] 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[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~__return_2272~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1617_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~__return_2167~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_10~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~9,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~6,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~__return_2072~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_11~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~10,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~__return_1988~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_12~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~11,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~4,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~7,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~__return_1889~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_13~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~12,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~__return_1817~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_14~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~13,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~8,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~__return_1707~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_15~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~14,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~__return_1479~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_16~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~15,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] [2021-01-06 20:54:22,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:54:22,324 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1406~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_2236~0,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[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1546~0,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[~__tmp_1555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_1616~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1617_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] [2021-01-06 20:54:22,375 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7139,7152] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1623_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1559~0,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[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__return_1856~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_4~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~3,] [2021-01-06 20:54:22,395 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10026,10039] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~node3__m3~3,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~3,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~__return_2039~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_5~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~4,] [2021-01-06 20:54:22,411 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11117,11130] 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[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__return_2203~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_6~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~5,] [2021-01-06 20:54:22,422 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11723,11736] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,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[~node2__m2~3,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~3,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~4,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~4,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~__return_1770~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_7~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~6,] [2021-01-06 20:54:22,444 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13142,13155] 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[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~__return_1925~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_8~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~7,] [2021-01-06 20:54:22,453 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13748,13761] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1623_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,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[~node3__m3~5,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~5,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~__return_2120~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_9~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~8,] [2021-01-06 20:54:22,499 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14719,14732] 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[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~__return_2272~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1617_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~__return_2167~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_10~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~9,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~6,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~__return_2072~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_11~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~10,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~__return_1988~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_12~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~11,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~4,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~7,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~__return_1889~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_13~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~12,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~__return_1817~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_14~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~13,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~8,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~__return_1707~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_15~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~14,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~__return_1479~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_16~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~15,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1489_0~0,GLOBAL] [2021-01-06 20:54:22,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:54:22,622 INFO L208 MainTranslator]: Completed translation [2021-01-06 20:54:22,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22 WrapperNode [2021-01-06 20:54:22,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 20:54:22,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 20:54:22,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 20:54:22,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 20:54:22,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22" (1/1) ... [2021-01-06 20:54:22,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22" (1/1) ... [2021-01-06 20:54:22,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 20:54:22,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 20:54:22,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 20:54:22,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 20:54:22,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22" (1/1) ... [2021-01-06 20:54:22,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22" (1/1) ... [2021-01-06 20:54:22,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22" (1/1) ... [2021-01-06 20:54:22,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22" (1/1) ... [2021-01-06 20:54:22,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22" (1/1) ... [2021-01-06 20:54:22,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22" (1/1) ... [2021-01-06 20:54:22,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22" (1/1) ... [2021-01-06 20:54:22,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 20:54:22,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 20:54:22,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 20:54:22,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 20:54:22,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:54:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 20:54:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 20:54:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 20:54:22,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 20:54:24,110 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 20:54:24,111 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-06 20:54:24,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:54:24 BoogieIcfgContainer [2021-01-06 20:54:24,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 20:54:24,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 20:54:24,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 20:54:24,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 20:54:24,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 08:54:21" (1/3) ... [2021-01-06 20:54:24,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fce2b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:54:24, skipping insertion in model container [2021-01-06 20:54:24,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:54:22" (2/3) ... [2021-01-06 20:54:24,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fce2b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:54:24, skipping insertion in model container [2021-01-06 20:54:24,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:54:24" (3/3) ... [2021-01-06 20:54:24,123 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2021-01-06 20:54:24,130 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 20:54:24,137 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2021-01-06 20:54:24,160 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-01-06 20:54:24,195 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 20:54:24,195 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 20:54:24,195 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 20:54:24,195 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 20:54:24,195 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 20:54:24,196 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 20:54:24,196 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 20:54:24,196 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 20:54:24,223 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2021-01-06 20:54:24,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-06 20:54:24,234 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:24,236 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] [2021-01-06 20:54:24,236 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:24,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:24,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1485336045, now seen corresponding path program 1 times [2021-01-06 20:54:24,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:24,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183468206] [2021-01-06 20:54:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:24,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183468206] [2021-01-06 20:54:24,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:24,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 20:54:24,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666631947] [2021-01-06 20:54:24,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:54:24,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:24,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:54:24,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:54:24,760 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2021-01-06 20:54:25,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:25,051 INFO L93 Difference]: Finished difference Result 339 states and 570 transitions. [2021-01-06 20:54:25,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:54:25,053 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2021-01-06 20:54:25,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:25,067 INFO L225 Difference]: With dead ends: 339 [2021-01-06 20:54:25,067 INFO L226 Difference]: Without dead ends: 175 [2021-01-06 20:54:25,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:54:25,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-01-06 20:54:25,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2021-01-06 20:54:25,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2021-01-06 20:54:25,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 216 transitions. [2021-01-06 20:54:25,130 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 216 transitions. Word has length 47 [2021-01-06 20:54:25,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:25,131 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 216 transitions. [2021-01-06 20:54:25,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:54:25,131 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 216 transitions. [2021-01-06 20:54:25,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-06 20:54:25,134 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:25,134 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] [2021-01-06 20:54:25,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 20:54:25,135 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:25,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:25,136 INFO L82 PathProgramCache]: Analyzing trace with hash 200422799, now seen corresponding path program 1 times [2021-01-06 20:54:25,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:25,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44476992] [2021-01-06 20:54:25,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:25,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:25,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44476992] [2021-01-06 20:54:25,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:25,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 20:54:25,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125824092] [2021-01-06 20:54:25,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:54:25,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:25,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:54:25,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:54:25,298 INFO L87 Difference]: Start difference. First operand 175 states and 216 transitions. Second operand 5 states. [2021-01-06 20:54:25,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:25,482 INFO L93 Difference]: Finished difference Result 298 states and 377 transitions. [2021-01-06 20:54:25,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:54:25,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2021-01-06 20:54:25,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:25,485 INFO L225 Difference]: With dead ends: 298 [2021-01-06 20:54:25,485 INFO L226 Difference]: Without dead ends: 165 [2021-01-06 20:54:25,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:54:25,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-01-06 20:54:25,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-01-06 20:54:25,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2021-01-06 20:54:25,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 203 transitions. [2021-01-06 20:54:25,537 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 203 transitions. Word has length 48 [2021-01-06 20:54:25,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:25,537 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 203 transitions. [2021-01-06 20:54:25,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:54:25,538 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 203 transitions. [2021-01-06 20:54:25,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-06 20:54:25,540 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:25,540 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] [2021-01-06 20:54:25,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 20:54:25,541 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:25,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:25,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1089931239, now seen corresponding path program 1 times [2021-01-06 20:54:25,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:25,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209884689] [2021-01-06 20:54:25,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:25,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:25,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209884689] [2021-01-06 20:54:25,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:25,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 20:54:25,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293126653] [2021-01-06 20:54:25,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:54:25,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:25,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:54:25,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:54:25,656 INFO L87 Difference]: Start difference. First operand 165 states and 203 transitions. Second operand 5 states. [2021-01-06 20:54:25,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:25,814 INFO L93 Difference]: Finished difference Result 288 states and 363 transitions. [2021-01-06 20:54:25,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:54:25,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2021-01-06 20:54:25,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:25,816 INFO L225 Difference]: With dead ends: 288 [2021-01-06 20:54:25,817 INFO L226 Difference]: Without dead ends: 157 [2021-01-06 20:54:25,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:54:25,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-01-06 20:54:25,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2021-01-06 20:54:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2021-01-06 20:54:25,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 193 transitions. [2021-01-06 20:54:25,832 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 193 transitions. Word has length 49 [2021-01-06 20:54:25,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:25,832 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 193 transitions. [2021-01-06 20:54:25,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:54:25,832 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 193 transitions. [2021-01-06 20:54:25,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-06 20:54:25,834 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:25,835 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] [2021-01-06 20:54:25,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 20:54:25,835 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:25,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:25,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1243075504, now seen corresponding path program 1 times [2021-01-06 20:54:25,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:25,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174252100] [2021-01-06 20:54:25,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:26,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174252100] [2021-01-06 20:54:26,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:26,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 20:54:26,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691971250] [2021-01-06 20:54:26,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 20:54:26,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:26,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 20:54:26,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-01-06 20:54:26,010 INFO L87 Difference]: Start difference. First operand 157 states and 193 transitions. Second operand 9 states. [2021-01-06 20:54:26,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:26,658 INFO L93 Difference]: Finished difference Result 332 states and 431 transitions. [2021-01-06 20:54:26,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 20:54:26,659 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2021-01-06 20:54:26,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:26,664 INFO L225 Difference]: With dead ends: 332 [2021-01-06 20:54:26,664 INFO L226 Difference]: Without dead ends: 327 [2021-01-06 20:54:26,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-01-06 20:54:26,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-01-06 20:54:26,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 157. [2021-01-06 20:54:26,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2021-01-06 20:54:26,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 192 transitions. [2021-01-06 20:54:26,704 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 192 transitions. Word has length 50 [2021-01-06 20:54:26,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:26,705 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 192 transitions. [2021-01-06 20:54:26,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 20:54:26,705 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2021-01-06 20:54:26,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-06 20:54:26,712 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:26,713 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] [2021-01-06 20:54:26,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 20:54:26,713 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:26,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:26,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1139694690, now seen corresponding path program 1 times [2021-01-06 20:54:26,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:26,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072694665] [2021-01-06 20:54:26,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:26,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:26,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072694665] [2021-01-06 20:54:26,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:26,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 20:54:26,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99982160] [2021-01-06 20:54:26,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 20:54:26,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:26,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 20:54:26,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-01-06 20:54:26,941 INFO L87 Difference]: Start difference. First operand 157 states and 192 transitions. Second operand 9 states. [2021-01-06 20:54:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:27,630 INFO L93 Difference]: Finished difference Result 391 states and 514 transitions. [2021-01-06 20:54:27,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 20:54:27,630 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2021-01-06 20:54:27,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:27,633 INFO L225 Difference]: With dead ends: 391 [2021-01-06 20:54:27,633 INFO L226 Difference]: Without dead ends: 331 [2021-01-06 20:54:27,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-01-06 20:54:27,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2021-01-06 20:54:27,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 157. [2021-01-06 20:54:27,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2021-01-06 20:54:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 191 transitions. [2021-01-06 20:54:27,647 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 191 transitions. Word has length 50 [2021-01-06 20:54:27,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:27,648 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 191 transitions. [2021-01-06 20:54:27,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 20:54:27,648 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 191 transitions. [2021-01-06 20:54:27,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-06 20:54:27,649 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:27,649 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] [2021-01-06 20:54:27,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 20:54:27,650 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:27,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:27,651 INFO L82 PathProgramCache]: Analyzing trace with hash 134088220, now seen corresponding path program 1 times [2021-01-06 20:54:27,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:27,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812551182] [2021-01-06 20:54:27,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:27,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:27,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812551182] [2021-01-06 20:54:27,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:27,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 20:54:27,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367490171] [2021-01-06 20:54:27,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 20:54:27,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:27,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 20:54:27,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:54:27,774 INFO L87 Difference]: Start difference. First operand 157 states and 191 transitions. Second operand 8 states. [2021-01-06 20:54:28,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:28,264 INFO L93 Difference]: Finished difference Result 312 states and 389 transitions. [2021-01-06 20:54:28,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 20:54:28,265 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2021-01-06 20:54:28,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:28,267 INFO L225 Difference]: With dead ends: 312 [2021-01-06 20:54:28,267 INFO L226 Difference]: Without dead ends: 229 [2021-01-06 20:54:28,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-01-06 20:54:28,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-01-06 20:54:28,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 157. [2021-01-06 20:54:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2021-01-06 20:54:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 190 transitions. [2021-01-06 20:54:28,284 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 190 transitions. Word has length 50 [2021-01-06 20:54:28,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:28,285 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 190 transitions. [2021-01-06 20:54:28,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 20:54:28,285 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 190 transitions. [2021-01-06 20:54:28,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-06 20:54:28,286 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:28,287 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] [2021-01-06 20:54:28,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 20:54:28,287 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:28,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:28,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1263855603, now seen corresponding path program 1 times [2021-01-06 20:54:28,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:28,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056435704] [2021-01-06 20:54:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:28,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056435704] [2021-01-06 20:54:28,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:28,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-01-06 20:54:28,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016642092] [2021-01-06 20:54:28,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 20:54:28,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:28,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 20:54:28,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-01-06 20:54:28,930 INFO L87 Difference]: Start difference. First operand 157 states and 190 transitions. Second operand 19 states. [2021-01-06 20:54:29,141 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2021-01-06 20:54:29,717 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-06 20:54:30,299 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2021-01-06 20:54:31,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:31,566 INFO L93 Difference]: Finished difference Result 444 states and 563 transitions. [2021-01-06 20:54:31,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-06 20:54:31,566 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2021-01-06 20:54:31,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:31,569 INFO L225 Difference]: With dead ends: 444 [2021-01-06 20:54:31,569 INFO L226 Difference]: Without dead ends: 397 [2021-01-06 20:54:31,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2021-01-06 20:54:31,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-01-06 20:54:31,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 163. [2021-01-06 20:54:31,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2021-01-06 20:54:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 198 transitions. [2021-01-06 20:54:31,591 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 198 transitions. Word has length 52 [2021-01-06 20:54:31,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:31,591 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 198 transitions. [2021-01-06 20:54:31,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 20:54:31,591 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 198 transitions. [2021-01-06 20:54:31,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-06 20:54:31,592 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:31,592 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] [2021-01-06 20:54:31,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 20:54:31,593 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:31,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:31,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1250594545, now seen corresponding path program 1 times [2021-01-06 20:54:31,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:31,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469113998] [2021-01-06 20:54:31,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:32,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469113998] [2021-01-06 20:54:32,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:32,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-01-06 20:54:32,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681634] [2021-01-06 20:54:32,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 20:54:32,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:32,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 20:54:32,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2021-01-06 20:54:32,228 INFO L87 Difference]: Start difference. First operand 163 states and 198 transitions. Second operand 19 states. [2021-01-06 20:54:32,545 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2021-01-06 20:54:33,145 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-06 20:54:33,373 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-01-06 20:54:33,943 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-06 20:54:35,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:35,474 INFO L93 Difference]: Finished difference Result 456 states and 593 transitions. [2021-01-06 20:54:35,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-01-06 20:54:35,474 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2021-01-06 20:54:35,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:35,477 INFO L225 Difference]: With dead ends: 456 [2021-01-06 20:54:35,477 INFO L226 Difference]: Without dead ends: 450 [2021-01-06 20:54:35,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2021-01-06 20:54:35,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-01-06 20:54:35,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 163. [2021-01-06 20:54:35,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2021-01-06 20:54:35,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 197 transitions. [2021-01-06 20:54:35,497 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 197 transitions. Word has length 52 [2021-01-06 20:54:35,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:35,498 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 197 transitions. [2021-01-06 20:54:35,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 20:54:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 197 transitions. [2021-01-06 20:54:35,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-06 20:54:35,499 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:35,499 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] [2021-01-06 20:54:35,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 20:54:35,499 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:35,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:35,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1783814727, now seen corresponding path program 1 times [2021-01-06 20:54:35,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:35,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856522635] [2021-01-06 20:54:35,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:35,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856522635] [2021-01-06 20:54:35,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:35,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-06 20:54:35,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356135640] [2021-01-06 20:54:35,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:54:35,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:35,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:54:35,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:54:35,869 INFO L87 Difference]: Start difference. First operand 163 states and 197 transitions. Second operand 10 states. [2021-01-06 20:54:36,436 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2021-01-06 20:54:36,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:36,798 INFO L93 Difference]: Finished difference Result 406 states and 524 transitions. [2021-01-06 20:54:36,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 20:54:36,799 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2021-01-06 20:54:36,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:36,801 INFO L225 Difference]: With dead ends: 406 [2021-01-06 20:54:36,801 INFO L226 Difference]: Without dead ends: 324 [2021-01-06 20:54:36,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2021-01-06 20:54:36,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-01-06 20:54:36,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 124. [2021-01-06 20:54:36,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2021-01-06 20:54:36,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 151 transitions. [2021-01-06 20:54:36,821 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 151 transitions. Word has length 52 [2021-01-06 20:54:36,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:36,822 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 151 transitions. [2021-01-06 20:54:36,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:54:36,822 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 151 transitions. [2021-01-06 20:54:36,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-06 20:54:36,823 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:36,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:54:36,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 20:54:36,823 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:36,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:36,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1706910886, now seen corresponding path program 1 times [2021-01-06 20:54:36,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:36,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671220507] [2021-01-06 20:54:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:37,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:37,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671220507] [2021-01-06 20:54:37,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:37,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-01-06 20:54:37,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631555112] [2021-01-06 20:54:37,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 20:54:37,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:37,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 20:54:37,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-01-06 20:54:37,384 INFO L87 Difference]: Start difference. First operand 124 states and 151 transitions. Second operand 19 states. [2021-01-06 20:54:39,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:39,181 INFO L93 Difference]: Finished difference Result 339 states and 432 transitions. [2021-01-06 20:54:39,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-06 20:54:39,182 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2021-01-06 20:54:39,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:39,184 INFO L225 Difference]: With dead ends: 339 [2021-01-06 20:54:39,184 INFO L226 Difference]: Without dead ends: 335 [2021-01-06 20:54:39,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=241, Invalid=1019, Unknown=0, NotChecked=0, Total=1260 [2021-01-06 20:54:39,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-01-06 20:54:39,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 134. [2021-01-06 20:54:39,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2021-01-06 20:54:39,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 166 transitions. [2021-01-06 20:54:39,208 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 166 transitions. Word has length 52 [2021-01-06 20:54:39,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:39,208 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 166 transitions. [2021-01-06 20:54:39,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 20:54:39,208 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 166 transitions. [2021-01-06 20:54:39,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-06 20:54:39,209 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:39,209 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] [2021-01-06 20:54:39,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 20:54:39,209 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:39,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:39,210 INFO L82 PathProgramCache]: Analyzing trace with hash -987220198, now seen corresponding path program 1 times [2021-01-06 20:54:39,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:39,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564748399] [2021-01-06 20:54:39,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:39,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564748399] [2021-01-06 20:54:39,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:39,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-01-06 20:54:39,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90261903] [2021-01-06 20:54:39,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-06 20:54:39,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:39,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-06 20:54:39,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-01-06 20:54:39,647 INFO L87 Difference]: Start difference. First operand 134 states and 166 transitions. Second operand 13 states. [2021-01-06 20:54:40,084 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2021-01-06 20:54:40,242 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2021-01-06 20:54:40,393 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2021-01-06 20:54:40,551 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-01-06 20:54:41,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:41,330 INFO L93 Difference]: Finished difference Result 424 states and 564 transitions. [2021-01-06 20:54:41,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-06 20:54:41,330 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2021-01-06 20:54:41,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:41,334 INFO L225 Difference]: With dead ends: 424 [2021-01-06 20:54:41,334 INFO L226 Difference]: Without dead ends: 404 [2021-01-06 20:54:41,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2021-01-06 20:54:41,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2021-01-06 20:54:41,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 108. [2021-01-06 20:54:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-01-06 20:54:41,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 133 transitions. [2021-01-06 20:54:41,355 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 133 transitions. Word has length 53 [2021-01-06 20:54:41,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:41,356 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 133 transitions. [2021-01-06 20:54:41,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-01-06 20:54:41,356 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 133 transitions. [2021-01-06 20:54:41,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-06 20:54:41,356 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:41,357 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] [2021-01-06 20:54:41,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 20:54:41,357 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:41,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:41,358 INFO L82 PathProgramCache]: Analyzing trace with hash 339917441, now seen corresponding path program 1 times [2021-01-06 20:54:41,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:41,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410817139] [2021-01-06 20:54:41,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:41,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:41,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410817139] [2021-01-06 20:54:41,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:41,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 20:54:41,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725073011] [2021-01-06 20:54:41,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:54:41,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:41,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:54:41,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:54:41,564 INFO L87 Difference]: Start difference. First operand 108 states and 133 transitions. Second operand 10 states. [2021-01-06 20:54:42,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:42,780 INFO L93 Difference]: Finished difference Result 413 states and 554 transitions. [2021-01-06 20:54:42,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-06 20:54:42,780 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2021-01-06 20:54:42,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:42,782 INFO L225 Difference]: With dead ends: 413 [2021-01-06 20:54:42,782 INFO L226 Difference]: Without dead ends: 352 [2021-01-06 20:54:42,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2021-01-06 20:54:42,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-01-06 20:54:42,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 112. [2021-01-06 20:54:42,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2021-01-06 20:54:42,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 137 transitions. [2021-01-06 20:54:42,806 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 137 transitions. Word has length 53 [2021-01-06 20:54:42,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:42,807 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 137 transitions. [2021-01-06 20:54:42,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:54:42,807 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 137 transitions. [2021-01-06 20:54:42,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-06 20:54:42,807 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:42,808 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] [2021-01-06 20:54:42,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 20:54:42,808 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:42,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:42,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1175492289, now seen corresponding path program 1 times [2021-01-06 20:54:42,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:42,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983707526] [2021-01-06 20:54:42,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:42,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:42,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983707526] [2021-01-06 20:54:42,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:42,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 20:54:42,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018378277] [2021-01-06 20:54:42,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 20:54:42,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:42,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 20:54:42,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-01-06 20:54:42,946 INFO L87 Difference]: Start difference. First operand 112 states and 137 transitions. Second operand 9 states. [2021-01-06 20:54:43,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:43,439 INFO L93 Difference]: Finished difference Result 239 states and 309 transitions. [2021-01-06 20:54:43,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 20:54:43,440 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2021-01-06 20:54:43,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:43,441 INFO L225 Difference]: With dead ends: 239 [2021-01-06 20:54:43,441 INFO L226 Difference]: Without dead ends: 178 [2021-01-06 20:54:43,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-01-06 20:54:43,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-01-06 20:54:43,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2021-01-06 20:54:43,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-01-06 20:54:43,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 132 transitions. [2021-01-06 20:54:43,462 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 132 transitions. Word has length 54 [2021-01-06 20:54:43,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:43,462 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 132 transitions. [2021-01-06 20:54:43,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 20:54:43,462 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 132 transitions. [2021-01-06 20:54:43,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-06 20:54:43,463 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:43,463 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] [2021-01-06 20:54:43,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 20:54:43,463 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:43,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:43,464 INFO L82 PathProgramCache]: Analyzing trace with hash -824240014, now seen corresponding path program 1 times [2021-01-06 20:54:43,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:43,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520183047] [2021-01-06 20:54:43,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:43,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520183047] [2021-01-06 20:54:43,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:43,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-06 20:54:43,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958993016] [2021-01-06 20:54:43,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-06 20:54:43,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:43,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-06 20:54:43,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-06 20:54:43,974 INFO L87 Difference]: Start difference. First operand 108 states and 132 transitions. Second operand 18 states. [2021-01-06 20:54:44,156 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2021-01-06 20:54:44,743 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-06 20:54:46,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:46,272 INFO L93 Difference]: Finished difference Result 400 states and 531 transitions. [2021-01-06 20:54:46,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-06 20:54:46,273 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 55 [2021-01-06 20:54:46,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:46,275 INFO L225 Difference]: With dead ends: 400 [2021-01-06 20:54:46,275 INFO L226 Difference]: Without dead ends: 394 [2021-01-06 20:54:46,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2021-01-06 20:54:46,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-01-06 20:54:46,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 119. [2021-01-06 20:54:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2021-01-06 20:54:46,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 146 transitions. [2021-01-06 20:54:46,304 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 146 transitions. Word has length 55 [2021-01-06 20:54:46,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:46,304 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 146 transitions. [2021-01-06 20:54:46,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-01-06 20:54:46,304 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 146 transitions. [2021-01-06 20:54:46,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-06 20:54:46,305 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:46,305 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] [2021-01-06 20:54:46,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 20:54:46,305 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:46,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:46,306 INFO L82 PathProgramCache]: Analyzing trace with hash -995695438, now seen corresponding path program 1 times [2021-01-06 20:54:46,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:46,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864129347] [2021-01-06 20:54:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:46,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:46,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864129347] [2021-01-06 20:54:46,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:46,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-01-06 20:54:46,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057948983] [2021-01-06 20:54:46,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-01-06 20:54:46,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:46,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-01-06 20:54:46,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-01-06 20:54:46,876 INFO L87 Difference]: Start difference. First operand 119 states and 146 transitions. Second operand 14 states. [2021-01-06 20:54:47,482 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-01-06 20:54:47,904 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2021-01-06 20:54:48,410 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2021-01-06 20:54:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:49,043 INFO L93 Difference]: Finished difference Result 365 states and 494 transitions. [2021-01-06 20:54:49,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-06 20:54:49,043 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2021-01-06 20:54:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:49,045 INFO L225 Difference]: With dead ends: 365 [2021-01-06 20:54:49,045 INFO L226 Difference]: Without dead ends: 359 [2021-01-06 20:54:49,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=160, Invalid=542, Unknown=0, NotChecked=0, Total=702 [2021-01-06 20:54:49,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2021-01-06 20:54:49,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 114. [2021-01-06 20:54:49,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2021-01-06 20:54:49,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2021-01-06 20:54:49,077 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 56 [2021-01-06 20:54:49,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:49,078 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2021-01-06 20:54:49,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-01-06 20:54:49,078 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2021-01-06 20:54:49,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-06 20:54:49,078 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:49,079 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] [2021-01-06 20:54:49,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 20:54:49,079 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:49,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:49,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1326812170, now seen corresponding path program 1 times [2021-01-06 20:54:49,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:49,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179746981] [2021-01-06 20:54:49,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:49,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:49,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179746981] [2021-01-06 20:54:49,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:49,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-01-06 20:54:49,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994115470] [2021-01-06 20:54:49,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 20:54:49,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:49,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 20:54:49,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-01-06 20:54:49,405 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand 11 states. [2021-01-06 20:54:50,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:50,370 INFO L93 Difference]: Finished difference Result 264 states and 350 transitions. [2021-01-06 20:54:50,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 20:54:50,372 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2021-01-06 20:54:50,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:50,374 INFO L225 Difference]: With dead ends: 264 [2021-01-06 20:54:50,374 INFO L226 Difference]: Without dead ends: 258 [2021-01-06 20:54:50,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2021-01-06 20:54:50,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-01-06 20:54:50,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 102. [2021-01-06 20:54:50,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-01-06 20:54:50,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 126 transitions. [2021-01-06 20:54:50,400 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 126 transitions. Word has length 56 [2021-01-06 20:54:50,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:50,400 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 126 transitions. [2021-01-06 20:54:50,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 20:54:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 126 transitions. [2021-01-06 20:54:50,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-01-06 20:54:50,401 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:50,401 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] [2021-01-06 20:54:50,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 20:54:50,402 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:50,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:50,402 INFO L82 PathProgramCache]: Analyzing trace with hash 2042294308, now seen corresponding path program 1 times [2021-01-06 20:54:50,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:50,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375693592] [2021-01-06 20:54:50,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:50,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375693592] [2021-01-06 20:54:50,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:50,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:54:50,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209529214] [2021-01-06 20:54:50,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:54:50,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:50,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:54:50,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:50,459 INFO L87 Difference]: Start difference. First operand 102 states and 126 transitions. Second operand 3 states. [2021-01-06 20:54:50,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:50,530 INFO L93 Difference]: Finished difference Result 184 states and 244 transitions. [2021-01-06 20:54:50,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:54:50,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2021-01-06 20:54:50,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:50,532 INFO L225 Difference]: With dead ends: 184 [2021-01-06 20:54:50,533 INFO L226 Difference]: Without dead ends: 141 [2021-01-06 20:54:50,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:50,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-01-06 20:54:50,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2021-01-06 20:54:50,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2021-01-06 20:54:50,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 179 transitions. [2021-01-06 20:54:50,593 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 179 transitions. Word has length 73 [2021-01-06 20:54:50,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:50,593 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 179 transitions. [2021-01-06 20:54:50,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:54:50,594 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 179 transitions. [2021-01-06 20:54:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-01-06 20:54:50,595 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:50,595 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] [2021-01-06 20:54:50,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 20:54:50,595 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:50,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:50,596 INFO L82 PathProgramCache]: Analyzing trace with hash -786943772, now seen corresponding path program 1 times [2021-01-06 20:54:50,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:50,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346308614] [2021-01-06 20:54:50,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:50,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346308614] [2021-01-06 20:54:50,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:50,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:54:50,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663392971] [2021-01-06 20:54:50,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:54:50,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:50,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:54:50,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:54:50,716 INFO L87 Difference]: Start difference. First operand 139 states and 179 transitions. Second operand 5 states. [2021-01-06 20:54:51,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:51,004 INFO L93 Difference]: Finished difference Result 408 states and 569 transitions. [2021-01-06 20:54:51,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:54:51,005 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2021-01-06 20:54:51,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:51,008 INFO L225 Difference]: With dead ends: 408 [2021-01-06 20:54:51,008 INFO L226 Difference]: Without dead ends: 328 [2021-01-06 20:54:51,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:54:51,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-01-06 20:54:51,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 180. [2021-01-06 20:54:51,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2021-01-06 20:54:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 240 transitions. [2021-01-06 20:54:51,098 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 240 transitions. Word has length 75 [2021-01-06 20:54:51,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:51,098 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 240 transitions. [2021-01-06 20:54:51,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:54:51,098 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 240 transitions. [2021-01-06 20:54:51,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-01-06 20:54:51,099 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:51,099 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] [2021-01-06 20:54:51,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-06 20:54:51,100 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:51,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:51,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1322322984, now seen corresponding path program 1 times [2021-01-06 20:54:51,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:51,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611971990] [2021-01-06 20:54:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:51,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:51,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611971990] [2021-01-06 20:54:51,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:51,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:54:51,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423610451] [2021-01-06 20:54:51,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:54:51,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:51,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:54:51,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:54:51,215 INFO L87 Difference]: Start difference. First operand 180 states and 240 transitions. Second operand 5 states. [2021-01-06 20:54:51,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:51,455 INFO L93 Difference]: Finished difference Result 429 states and 600 transitions. [2021-01-06 20:54:51,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:54:51,456 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2021-01-06 20:54:51,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:51,458 INFO L225 Difference]: With dead ends: 429 [2021-01-06 20:54:51,458 INFO L226 Difference]: Without dead ends: 349 [2021-01-06 20:54:51,459 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 [2021-01-06 20:54:51,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-01-06 20:54:51,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 262. [2021-01-06 20:54:51,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-01-06 20:54:51,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 362 transitions. [2021-01-06 20:54:51,578 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 362 transitions. Word has length 75 [2021-01-06 20:54:51,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:51,579 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 362 transitions. [2021-01-06 20:54:51,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:54:51,579 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 362 transitions. [2021-01-06 20:54:51,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-01-06 20:54:51,580 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:51,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:54:51,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 20:54:51,580 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:51,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:51,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1446907099, now seen corresponding path program 1 times [2021-01-06 20:54:51,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:51,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130248301] [2021-01-06 20:54:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:51,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:51,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130248301] [2021-01-06 20:54:51,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:51,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:54:51,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813605634] [2021-01-06 20:54:51,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:54:51,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:51,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:54:51,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:51,649 INFO L87 Difference]: Start difference. First operand 262 states and 362 transitions. Second operand 3 states. [2021-01-06 20:54:51,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:51,855 INFO L93 Difference]: Finished difference Result 590 states and 845 transitions. [2021-01-06 20:54:51,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:54:51,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2021-01-06 20:54:51,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:51,858 INFO L225 Difference]: With dead ends: 590 [2021-01-06 20:54:51,859 INFO L226 Difference]: Without dead ends: 387 [2021-01-06 20:54:51,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:51,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-01-06 20:54:51,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2021-01-06 20:54:51,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2021-01-06 20:54:51,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 537 transitions. [2021-01-06 20:54:51,982 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 537 transitions. Word has length 75 [2021-01-06 20:54:51,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:51,982 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 537 transitions. [2021-01-06 20:54:51,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:54:51,983 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 537 transitions. [2021-01-06 20:54:51,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-01-06 20:54:51,984 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:51,984 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] [2021-01-06 20:54:51,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-06 20:54:51,984 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:51,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:51,985 INFO L82 PathProgramCache]: Analyzing trace with hash 2078767204, now seen corresponding path program 1 times [2021-01-06 20:54:51,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:51,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040122823] [2021-01-06 20:54:51,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:52,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040122823] [2021-01-06 20:54:52,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:52,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:54:52,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491335693] [2021-01-06 20:54:52,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:54:52,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:52,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:54:52,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:52,049 INFO L87 Difference]: Start difference. First operand 385 states and 537 transitions. Second operand 3 states. [2021-01-06 20:54:52,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:52,471 INFO L93 Difference]: Finished difference Result 988 states and 1403 transitions. [2021-01-06 20:54:52,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:54:52,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2021-01-06 20:54:52,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:52,476 INFO L225 Difference]: With dead ends: 988 [2021-01-06 20:54:52,476 INFO L226 Difference]: Without dead ends: 662 [2021-01-06 20:54:52,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:52,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-01-06 20:54:52,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 660. [2021-01-06 20:54:52,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2021-01-06 20:54:52,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 914 transitions. [2021-01-06 20:54:52,805 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 914 transitions. Word has length 75 [2021-01-06 20:54:52,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:52,805 INFO L481 AbstractCegarLoop]: Abstraction has 660 states and 914 transitions. [2021-01-06 20:54:52,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:54:52,805 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 914 transitions. [2021-01-06 20:54:52,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-01-06 20:54:52,806 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:52,807 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] [2021-01-06 20:54:52,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-06 20:54:52,807 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:52,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:52,807 INFO L82 PathProgramCache]: Analyzing trace with hash 95104542, now seen corresponding path program 1 times [2021-01-06 20:54:52,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:52,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310604131] [2021-01-06 20:54:52,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:52,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:52,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310604131] [2021-01-06 20:54:52,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:52,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:54:52,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413189394] [2021-01-06 20:54:52,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:54:52,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:52,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:54:52,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:54:52,911 INFO L87 Difference]: Start difference. First operand 660 states and 914 transitions. Second operand 5 states. [2021-01-06 20:54:53,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:53,413 INFO L93 Difference]: Finished difference Result 1287 states and 1800 transitions. [2021-01-06 20:54:53,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:54:53,414 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2021-01-06 20:54:53,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:53,420 INFO L225 Difference]: With dead ends: 1287 [2021-01-06 20:54:53,420 INFO L226 Difference]: Without dead ends: 1064 [2021-01-06 20:54:53,423 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 [2021-01-06 20:54:53,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2021-01-06 20:54:53,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 811. [2021-01-06 20:54:53,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2021-01-06 20:54:53,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1128 transitions. [2021-01-06 20:54:53,836 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1128 transitions. Word has length 75 [2021-01-06 20:54:53,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:53,836 INFO L481 AbstractCegarLoop]: Abstraction has 811 states and 1128 transitions. [2021-01-06 20:54:53,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:54:53,837 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1128 transitions. [2021-01-06 20:54:53,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-01-06 20:54:53,838 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:53,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:54:53,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-06 20:54:53,838 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:53,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:53,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1963614716, now seen corresponding path program 1 times [2021-01-06 20:54:53,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:53,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886088656] [2021-01-06 20:54:53,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:53,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886088656] [2021-01-06 20:54:53,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:53,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:54:53,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625186501] [2021-01-06 20:54:53,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:54:53,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:53,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:54:53,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:53,918 INFO L87 Difference]: Start difference. First operand 811 states and 1128 transitions. Second operand 3 states. [2021-01-06 20:54:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:54,586 INFO L93 Difference]: Finished difference Result 2035 states and 2844 transitions. [2021-01-06 20:54:54,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:54:54,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2021-01-06 20:54:54,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:54,593 INFO L225 Difference]: With dead ends: 2035 [2021-01-06 20:54:54,594 INFO L226 Difference]: Without dead ends: 1283 [2021-01-06 20:54:54,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:54,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2021-01-06 20:54:55,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1205. [2021-01-06 20:54:55,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1205 states. [2021-01-06 20:54:55,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1664 transitions. [2021-01-06 20:54:55,222 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1664 transitions. Word has length 76 [2021-01-06 20:54:55,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:55,222 INFO L481 AbstractCegarLoop]: Abstraction has 1205 states and 1664 transitions. [2021-01-06 20:54:55,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:54:55,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1664 transitions. [2021-01-06 20:54:55,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-01-06 20:54:55,223 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:55,223 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] [2021-01-06 20:54:55,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-06 20:54:55,224 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:55,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:55,224 INFO L82 PathProgramCache]: Analyzing trace with hash -628172474, now seen corresponding path program 1 times [2021-01-06 20:54:55,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:55,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518084277] [2021-01-06 20:54:55,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:55,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:55,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518084277] [2021-01-06 20:54:55,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:55,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:54:55,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546790420] [2021-01-06 20:54:55,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:54:55,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:55,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:54:55,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:55,299 INFO L87 Difference]: Start difference. First operand 1205 states and 1664 transitions. Second operand 3 states. [2021-01-06 20:54:56,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:56,340 INFO L93 Difference]: Finished difference Result 3377 states and 4656 transitions. [2021-01-06 20:54:56,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:54:56,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2021-01-06 20:54:56,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:56,354 INFO L225 Difference]: With dead ends: 3377 [2021-01-06 20:54:56,354 INFO L226 Difference]: Without dead ends: 2231 [2021-01-06 20:54:56,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:56,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-01-06 20:54:57,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2109. [2021-01-06 20:54:57,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2021-01-06 20:54:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2874 transitions. [2021-01-06 20:54:57,260 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2874 transitions. Word has length 77 [2021-01-06 20:54:57,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:57,261 INFO L481 AbstractCegarLoop]: Abstraction has 2109 states and 2874 transitions. [2021-01-06 20:54:57,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:54:57,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2874 transitions. [2021-01-06 20:54:57,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-01-06 20:54:57,262 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:57,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:54:57,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-06 20:54:57,262 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:57,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:57,263 INFO L82 PathProgramCache]: Analyzing trace with hash -763788569, now seen corresponding path program 1 times [2021-01-06 20:54:57,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:57,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585360322] [2021-01-06 20:54:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:57,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:57,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585360322] [2021-01-06 20:54:57,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:57,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:54:57,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71022666] [2021-01-06 20:54:57,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:54:57,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:57,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:54:57,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:57,319 INFO L87 Difference]: Start difference. First operand 2109 states and 2874 transitions. Second operand 3 states. [2021-01-06 20:54:58,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:58,901 INFO L93 Difference]: Finished difference Result 5969 states and 8076 transitions. [2021-01-06 20:54:58,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:54:58,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2021-01-06 20:54:58,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:58,919 INFO L225 Difference]: With dead ends: 5969 [2021-01-06 20:54:58,919 INFO L226 Difference]: Without dead ends: 3919 [2021-01-06 20:54:58,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:58,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2021-01-06 20:55:00,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3677. [2021-01-06 20:55:00,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3677 states. [2021-01-06 20:55:00,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3677 states to 3677 states and 4904 transitions. [2021-01-06 20:55:00,319 INFO L78 Accepts]: Start accepts. Automaton has 3677 states and 4904 transitions. Word has length 78 [2021-01-06 20:55:00,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:55:00,320 INFO L481 AbstractCegarLoop]: Abstraction has 3677 states and 4904 transitions. [2021-01-06 20:55:00,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:55:00,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3677 states and 4904 transitions. [2021-01-06 20:55:00,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-01-06 20:55:00,321 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:55:00,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:55:00,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-06 20:55:00,321 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:55:00,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:55:00,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1461539563, now seen corresponding path program 1 times [2021-01-06 20:55:00,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:55:00,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569927349] [2021-01-06 20:55:00,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:55:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:55:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:55:00,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569927349] [2021-01-06 20:55:00,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:55:00,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:55:00,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29847439] [2021-01-06 20:55:00,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:55:00,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:55:00,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:55:00,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:55:00,411 INFO L87 Difference]: Start difference. First operand 3677 states and 4904 transitions. Second operand 6 states. [2021-01-06 20:55:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:55:02,806 INFO L93 Difference]: Finished difference Result 5622 states and 7464 transitions. [2021-01-06 20:55:02,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 20:55:02,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2021-01-06 20:55:02,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:55:02,827 INFO L225 Difference]: With dead ends: 5622 [2021-01-06 20:55:02,827 INFO L226 Difference]: Without dead ends: 5620 [2021-01-06 20:55:02,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-06 20:55:02,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2021-01-06 20:55:04,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 3773. [2021-01-06 20:55:04,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3773 states. [2021-01-06 20:55:04,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3773 states to 3773 states and 4960 transitions. [2021-01-06 20:55:04,167 INFO L78 Accepts]: Start accepts. Automaton has 3773 states and 4960 transitions. Word has length 79 [2021-01-06 20:55:04,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:55:04,167 INFO L481 AbstractCegarLoop]: Abstraction has 3773 states and 4960 transitions. [2021-01-06 20:55:04,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:55:04,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3773 states and 4960 transitions. [2021-01-06 20:55:04,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-01-06 20:55:04,168 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:55:04,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:55:04,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-06 20:55:04,169 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:55:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:55:04,169 INFO L82 PathProgramCache]: Analyzing trace with hash 965347417, now seen corresponding path program 1 times [2021-01-06 20:55:04,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:55:04,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057665093] [2021-01-06 20:55:04,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:55:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:55:04,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:55:04,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057665093] [2021-01-06 20:55:04,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:55:04,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:55:04,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969116724] [2021-01-06 20:55:04,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:55:04,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:55:04,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:55:04,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:55:04,217 INFO L87 Difference]: Start difference. First operand 3773 states and 4960 transitions. Second operand 3 states. [2021-01-06 20:55:05,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:55:05,974 INFO L93 Difference]: Finished difference Result 7593 states and 10002 transitions. [2021-01-06 20:55:05,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:55:05,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2021-01-06 20:55:05,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:55:05,989 INFO L225 Difference]: With dead ends: 7593 [2021-01-06 20:55:05,989 INFO L226 Difference]: Without dead ends: 3879 [2021-01-06 20:55:05,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:55:06,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2021-01-06 20:55:07,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 3877. [2021-01-06 20:55:07,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3877 states. [2021-01-06 20:55:07,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3877 states to 3877 states and 5028 transitions. [2021-01-06 20:55:07,361 INFO L78 Accepts]: Start accepts. Automaton has 3877 states and 5028 transitions. Word has length 79 [2021-01-06 20:55:07,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:55:07,361 INFO L481 AbstractCegarLoop]: Abstraction has 3877 states and 5028 transitions. [2021-01-06 20:55:07,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:55:07,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3877 states and 5028 transitions. [2021-01-06 20:55:07,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-06 20:55:07,363 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:55:07,363 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:55:07,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-01-06 20:55:07,364 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:55:07,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:55:07,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1381911094, now seen corresponding path program 1 times [2021-01-06 20:55:07,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:55:07,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026490132] [2021-01-06 20:55:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:55:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:55:07,640 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:55:07,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026490132] [2021-01-06 20:55:07,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830633853] [2021-01-06 20:55:07,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 20:55:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:55:07,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 20:55:07,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 20:55:08,117 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 20:55:08,212 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 20:55:08,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 20:55:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:55:08,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 20:55:08,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2021-01-06 20:55:08,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831590596] [2021-01-06 20:55:08,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-06 20:55:08,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:55:08,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-06 20:55:08,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-01-06 20:55:08,717 INFO L87 Difference]: Start difference. First operand 3877 states and 5028 transitions. Second operand 18 states. [2021-01-06 20:55:14,420 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-01-06 20:55:16,975 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2021-01-06 20:55:30,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:55:30,864 INFO L93 Difference]: Finished difference Result 38447 states and 48996 transitions. [2021-01-06 20:55:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-01-06 20:55:30,866 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 101 [2021-01-06 20:55:30,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:55:30,956 INFO L225 Difference]: With dead ends: 38447 [2021-01-06 20:55:30,957 INFO L226 Difference]: Without dead ends: 34629 [2021-01-06 20:55:30,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2651 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1537, Invalid=6653, Unknown=0, NotChecked=0, Total=8190 [2021-01-06 20:55:31,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34629 states. [2021-01-06 20:55:34,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34629 to 8266. [2021-01-06 20:55:34,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8266 states. [2021-01-06 20:55:34,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 10663 transitions. [2021-01-06 20:55:34,800 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 10663 transitions. Word has length 101 [2021-01-06 20:55:34,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:55:34,801 INFO L481 AbstractCegarLoop]: Abstraction has 8266 states and 10663 transitions. [2021-01-06 20:55:34,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-01-06 20:55:34,801 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 10663 transitions. [2021-01-06 20:55:34,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-01-06 20:55:34,804 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:55:34,804 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:55:35,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-01-06 20:55:35,006 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:55:35,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:55:35,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1466079819, now seen corresponding path program 1 times [2021-01-06 20:55:35,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:55:35,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527475880] [2021-01-06 20:55:35,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:55:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:55:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-01-06 20:55:35,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527475880] [2021-01-06 20:55:35,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:55:35,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:55:35,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902863648] [2021-01-06 20:55:35,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:55:35,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:55:35,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:55:35,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:55:35,069 INFO L87 Difference]: Start difference. First operand 8266 states and 10663 transitions. Second operand 3 states. [2021-01-06 20:55:38,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:55:38,128 INFO L93 Difference]: Finished difference Result 15776 states and 20448 transitions. [2021-01-06 20:55:38,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:55:38,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2021-01-06 20:55:38,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:55:38,147 INFO L225 Difference]: With dead ends: 15776 [2021-01-06 20:55:38,147 INFO L226 Difference]: Without dead ends: 7576 [2021-01-06 20:55:38,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:55:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2021-01-06 20:55:41,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 7576. [2021-01-06 20:55:41,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7576 states. [2021-01-06 20:55:41,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7576 states to 7576 states and 9731 transitions. [2021-01-06 20:55:41,393 INFO L78 Accepts]: Start accepts. Automaton has 7576 states and 9731 transitions. Word has length 102 [2021-01-06 20:55:41,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:55:41,394 INFO L481 AbstractCegarLoop]: Abstraction has 7576 states and 9731 transitions. [2021-01-06 20:55:41,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:55:41,394 INFO L276 IsEmpty]: Start isEmpty. Operand 7576 states and 9731 transitions. [2021-01-06 20:55:41,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-01-06 20:55:41,396 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:55:41,396 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:55:41,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-01-06 20:55:41,397 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:55:41,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:55:41,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1423038550, now seen corresponding path program 1 times [2021-01-06 20:55:41,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:55:41,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799921451] [2021-01-06 20:55:41,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:55:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:55:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:55:41,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799921451] [2021-01-06 20:55:41,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614472622] [2021-01-06 20:55:41,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 20:55:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:55:41,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 20:55:41,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 20:55:42,021 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 20:55:42,074 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 20:55:42,238 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 20:55:42,575 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 29 [2021-01-06 20:55:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:55:42,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 20:55:42,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-01-06 20:55:42,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932907372] [2021-01-06 20:55:42,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 20:55:42,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:55:42,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 20:55:42,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-01-06 20:55:42,841 INFO L87 Difference]: Start difference. First operand 7576 states and 9731 transitions. Second operand 19 states. [2021-01-06 20:55:45,468 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2021-01-06 20:55:45,720 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2021-01-06 20:55:46,101 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-01-06 20:55:46,319 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-01-06 20:55:46,545 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2021-01-06 20:55:47,078 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-06 20:55:47,278 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2021-01-06 20:55:47,515 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-06 20:55:47,816 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-01-06 20:55:47,993 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2021-01-06 20:55:48,402 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-01-06 20:55:48,670 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2021-01-06 20:55:48,921 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2021-01-06 20:55:49,308 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-01-06 20:55:49,858 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-06 20:55:50,141 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-01-06 20:55:50,592 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2021-01-06 20:55:51,297 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2021-01-06 20:55:52,608 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2021-01-06 20:55:52,845 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2021-01-06 20:55:53,111 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-01-06 20:55:53,373 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-01-06 20:55:53,587 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-06 20:55:53,853 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2021-01-06 20:55:54,315 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2021-01-06 20:55:54,510 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2021-01-06 20:55:54,724 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2021-01-06 20:55:54,927 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2021-01-06 20:55:55,366 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2021-01-06 20:55:55,612 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2021-01-06 20:55:55,851 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2021-01-06 20:55:56,104 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2021-01-06 20:55:56,316 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2021-01-06 20:55:56,597 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-01-06 20:55:57,179 WARN L197 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2021-01-06 20:55:57,434 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2021-01-06 20:55:57,898 WARN L197 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2021-01-06 20:55:58,152 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2021-01-06 20:55:58,664 WARN L197 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2021-01-06 20:55:58,836 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2021-01-06 20:55:59,495 WARN L197 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2021-01-06 20:55:59,668 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2021-01-06 20:55:59,884 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2021-01-06 20:56:00,096 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2021-01-06 20:56:00,486 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2021-01-06 20:56:00,689 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-01-06 20:56:00,890 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-01-06 20:56:01,370 WARN L197 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2021-01-06 20:56:01,576 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-01-06 20:56:02,361 WARN L197 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2021-01-06 20:56:02,574 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2021-01-06 20:56:03,056 WARN L197 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2021-01-06 20:56:03,278 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2021-01-06 20:56:03,552 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-01-06 20:56:03,699 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2021-01-06 20:56:04,365 WARN L197 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2021-01-06 20:56:04,980 WARN L197 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2021-01-06 20:56:05,464 WARN L197 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-01-06 20:56:05,675 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-01-06 20:56:06,171 WARN L197 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2021-01-06 20:56:06,483 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2021-01-06 20:56:06,919 WARN L197 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-01-06 20:56:08,049 WARN L197 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2021-01-06 20:56:08,249 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2021-01-06 20:56:10,330 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2021-01-06 20:56:10,515 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2021-01-06 20:56:11,027 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-01-06 20:56:11,205 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2021-01-06 20:56:11,633 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2021-01-06 20:56:11,817 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2021-01-06 20:56:12,041 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2021-01-06 20:56:12,193 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2021-01-06 20:56:12,887 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-01-06 20:56:13,211 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-01-06 20:56:13,408 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2021-01-06 20:56:13,783 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2021-01-06 20:56:14,136 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 33 [2021-01-06 20:56:14,311 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 30 [2021-01-06 20:56:14,800 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2021-01-06 20:56:14,954 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2021-01-06 20:56:15,237 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2021-01-06 20:56:15,435 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-01-06 20:56:15,649 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2021-01-06 20:56:15,810 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2021-01-06 20:56:15,985 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2021-01-06 20:56:16,389 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2021-01-06 20:56:17,085 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-01-06 20:56:17,451 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2021-01-06 20:56:18,032 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2021-01-06 20:56:18,230 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-01-06 20:56:18,391 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-01-06 20:56:18,670 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2021-01-06 20:56:18,906 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2021-01-06 20:56:19,286 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2021-01-06 20:56:19,472 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 26 [2021-01-06 20:56:19,657 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 23 [2021-01-06 20:56:20,247 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2021-01-06 20:56:20,486 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2021-01-06 20:56:20,904 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-01-06 20:56:21,166 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2021-01-06 20:56:21,436 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2021-01-06 20:56:21,722 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2021-01-06 20:56:22,398 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2021-01-06 20:56:23,108 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2021-01-06 20:56:23,326 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2021-01-06 20:56:23,646 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-01-06 20:56:24,246 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2021-01-06 20:56:25,518 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 35 [2021-01-06 20:56:25,752 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 35 [2021-01-06 20:56:26,334 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2021-01-06 20:56:26,524 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 28 [2021-01-06 20:56:26,706 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2021-01-06 20:56:26,901 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 28 [2021-01-06 20:56:27,270 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 29 [2021-01-06 20:56:28,532 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-06 20:56:28,852 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-06 20:56:29,149 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-06 20:56:29,609 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2021-01-06 20:56:29,956 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2021-01-06 20:56:30,357 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2021-01-06 20:56:30,710 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2021-01-06 20:56:31,186 WARN L197 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2021-01-06 20:56:31,525 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2021-01-06 20:56:31,959 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2021-01-06 20:56:32,338 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-01-06 20:56:32,652 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2021-01-06 20:56:33,024 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2021-01-06 20:56:33,332 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2021-01-06 20:56:33,582 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2021-01-06 20:56:34,105 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2021-01-06 20:56:37,564 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2021-01-06 20:56:38,187 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2021-01-06 20:56:40,264 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2021-01-06 20:56:40,932 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2021-01-06 20:56:41,553 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-01-06 20:56:42,531 WARN L197 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2021-01-06 20:56:42,703 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 21 [2021-01-06 20:56:42,943 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2021-01-06 20:56:44,024 WARN L197 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-01-06 20:56:47,827 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2021-01-06 20:56:48,402 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2021-01-06 20:56:48,640 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2021-01-06 20:56:49,320 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 27 [2021-01-06 20:56:53,081 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2021-01-06 20:56:53,517 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-01-06 20:56:55,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:56:55,652 INFO L93 Difference]: Finished difference Result 58416 states and 73288 transitions. [2021-01-06 20:56:55,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 218 states. [2021-01-06 20:56:55,652 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 102 [2021-01-06 20:56:55,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:56:55,721 INFO L225 Difference]: With dead ends: 58416 [2021-01-06 20:56:55,722 INFO L226 Difference]: Without dead ends: 50906 [2021-01-06 20:56:55,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23219 ImplicationChecksByTransitivity, 46.1s TimeCoverageRelationStatistics Valid=7542, Invalid=47448, Unknown=0, NotChecked=0, Total=54990 [2021-01-06 20:56:55,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50906 states. [2021-01-06 20:57:05,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50906 to 21652. [2021-01-06 20:57:05,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21652 states. [2021-01-06 20:57:05,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21652 states to 21652 states and 27698 transitions. [2021-01-06 20:57:05,610 INFO L78 Accepts]: Start accepts. Automaton has 21652 states and 27698 transitions. Word has length 102 [2021-01-06 20:57:05,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:57:05,610 INFO L481 AbstractCegarLoop]: Abstraction has 21652 states and 27698 transitions. [2021-01-06 20:57:05,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 20:57:05,611 INFO L276 IsEmpty]: Start isEmpty. Operand 21652 states and 27698 transitions. [2021-01-06 20:57:05,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-01-06 20:57:05,615 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:57:05,615 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:57:05,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 20:57:05,829 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:57:05,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:57:05,830 INFO L82 PathProgramCache]: Analyzing trace with hash 2144404502, now seen corresponding path program 1 times [2021-01-06 20:57:05,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:57:05,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193703654] [2021-01-06 20:57:05,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:57:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:57:06,143 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:57:06,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193703654] [2021-01-06 20:57:06,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570411812] [2021-01-06 20:57:06,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 20:57:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:57:06,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 21 conjunts are in the unsatisfiable core [2021-01-06 20:57:06,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 20:57:06,523 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-01-06 20:57:06,524 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 20:57:06,769 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 20:57:06,776 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 20:57:06,857 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 20:57:08,510 WARN L197 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 68 [2021-01-06 20:57:08,890 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-01-06 20:57:09,263 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-01-06 20:57:09,706 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2021-01-06 20:57:09,799 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:57:09,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 20:57:09,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2021-01-06 20:57:09,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673073867] [2021-01-06 20:57:09,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-06 20:57:09,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:57:09,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-06 20:57:09,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-01-06 20:57:09,801 INFO L87 Difference]: Start difference. First operand 21652 states and 27698 transitions. Second operand 18 states. [2021-01-06 20:57:12,250 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-01-06 20:57:12,753 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-01-06 20:57:13,817 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-01-06 20:57:15,167 WARN L197 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2021-01-06 20:57:15,362 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-01-06 20:57:16,696 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2021-01-06 20:57:17,296 WARN L197 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 20:57:17,914 WARN L197 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 20:57:19,524 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2021-01-06 20:57:20,088 WARN L197 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-01-06 20:57:20,998 WARN L197 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 20:57:21,797 WARN L197 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-01-06 20:57:23,295 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2021-01-06 20:57:24,619 WARN L197 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2021-01-06 20:57:26,000 WARN L197 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 120 DAG size of output: 115 [2021-01-06 20:57:26,841 WARN L197 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-01-06 20:57:27,724 WARN L197 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-01-06 20:57:29,442 WARN L197 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2021-01-06 20:57:31,883 WARN L197 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2021-01-06 20:57:33,420 WARN L197 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2021-01-06 20:57:34,769 WARN L197 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-01-06 20:57:36,387 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2021-01-06 20:57:37,774 WARN L197 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-01-06 20:57:40,176 WARN L197 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-01-06 20:57:42,207 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2021-01-06 20:57:43,734 WARN L197 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2021-01-06 20:57:45,187 WARN L197 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2021-01-06 20:57:46,793 WARN L197 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2021-01-06 20:57:48,046 WARN L197 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-01-06 20:57:49,369 WARN L197 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2021-01-06 20:57:51,049 WARN L197 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-01-06 20:57:51,756 WARN L197 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-01-06 20:57:52,743 WARN L197 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-01-06 20:57:53,623 WARN L197 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-01-06 20:57:54,765 WARN L197 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2021-01-06 20:57:56,249 WARN L197 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2021-01-06 20:57:57,216 WARN L197 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-01-06 20:57:58,834 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2021-01-06 20:58:00,361 WARN L197 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2021-01-06 20:58:01,701 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 108 DAG size of output: 103 [2021-01-06 20:58:03,209 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 108 DAG size of output: 103 [2021-01-06 20:58:04,126 WARN L197 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-01-06 20:58:05,804 WARN L197 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2021-01-06 20:58:07,444 WARN L197 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-01-06 20:58:13,519 WARN L197 SmtUtils]: Spent 5.72 s on a formula simplification. DAG size of input: 178 DAG size of output: 173 [2021-01-06 20:58:21,120 WARN L197 SmtUtils]: Spent 7.12 s on a formula simplification. DAG size of input: 178 DAG size of output: 173 [2021-01-06 20:58:23,680 WARN L197 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 120 DAG size of output: 115