/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark20_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 01:20:28,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 01:20:28,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 01:20:28,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 01:20:28,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 01:20:28,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 01:20:28,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 01:20:28,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 01:20:28,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 01:20:28,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 01:20:28,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 01:20:28,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 01:20:28,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 01:20:28,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 01:20:28,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 01:20:28,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 01:20:28,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 01:20:28,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 01:20:28,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 01:20:28,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 01:20:28,659 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 01:20:28,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 01:20:28,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 01:20:28,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 01:20:28,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 01:20:28,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 01:20:28,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 01:20:28,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 01:20:28,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 01:20:28,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 01:20:28,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-05 01:20:28,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-05 01:20:28,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-05 01:20:28,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-05 01:20:28,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-05 01:20:28,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-05 01:20:28,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-05 01:20:28,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-05 01:20:28,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-05 01:20:28,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 01:20:28,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 01:20:28,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 01:20:28,674 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 01:20:28,682 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 01:20:28,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 01:20:28,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 01:20:28,684 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 01:20:28,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 01:20:28,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 01:20:28,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 01:20:28,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 01:20:28,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 01:20:28,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 01:20:28,685 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 01:20:28,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 01:20:28,685 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 01:20:28,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 01:20:28,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 01:20:28,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 01:20:28,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 01:20:28,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 01:20:28,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 01:20:28,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 01:20:28,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 01:20:28,687 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 01:20:28,687 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 01:20:28,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 01:20:28,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 01:20:28,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 01:20:28,894 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 01:20:28,894 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 01:20:28,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark20_conjunctive.i [2022-04-05 01:20:28,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d8210039/8ccbe9d6dd9c45a48c7826e179838626/FLAGabb9193f3 [2022-04-05 01:20:29,292 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 01:20:29,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark20_conjunctive.i [2022-04-05 01:20:29,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d8210039/8ccbe9d6dd9c45a48c7826e179838626/FLAGabb9193f3 [2022-04-05 01:20:29,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d8210039/8ccbe9d6dd9c45a48c7826e179838626 [2022-04-05 01:20:29,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 01:20:29,306 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 01:20:29,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 01:20:29,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 01:20:29,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 01:20:29,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 01:20:29" (1/1) ... [2022-04-05 01:20:29,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b7fee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:20:29, skipping insertion in model container [2022-04-05 01:20:29,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 01:20:29" (1/1) ... [2022-04-05 01:20:29,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 01:20:29,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 01:20:29,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark20_conjunctive.i[873,886] [2022-04-05 01:20:29,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 01:20:29,441 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 01:20:29,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark20_conjunctive.i[873,886] [2022-04-05 01:20:29,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 01:20:29,459 INFO L208 MainTranslator]: Completed translation [2022-04-05 01:20:29,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:20:29 WrapperNode [2022-04-05 01:20:29,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 01:20:29,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 01:20:29,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 01:20:29,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 01:20:29,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:20:29" (1/1) ... [2022-04-05 01:20:29,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:20:29" (1/1) ... [2022-04-05 01:20:29,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:20:29" (1/1) ... [2022-04-05 01:20:29,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:20:29" (1/1) ... [2022-04-05 01:20:29,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:20:29" (1/1) ... [2022-04-05 01:20:29,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:20:29" (1/1) ... [2022-04-05 01:20:29,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:20:29" (1/1) ... [2022-04-05 01:20:29,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 01:20:29,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 01:20:29,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 01:20:29,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 01:20:29,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:20:29" (1/1) ... [2022-04-05 01:20:29,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 01:20:29,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 01:20:29,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-05 01:20:29,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-05 01:20:29,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 01:20:29,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 01:20:29,531 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 01:20:29,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-05 01:20:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 01:20:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 01:20:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 01:20:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 01:20:29,573 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 01:20:29,574 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 01:20:29,653 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 01:20:29,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 01:20:29,657 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 01:20:29,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 01:20:29 BoogieIcfgContainer [2022-04-05 01:20:29,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 01:20:29,660 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 01:20:29,660 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 01:20:29,661 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 01:20:29,663 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 01:20:29" (1/1) ... [2022-04-05 01:20:29,665 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 01:20:31,090 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={3=1}}, 0 SequentialAcceleration, 1 AlternatingAcceleration, 1 QuantifierFreeResult [2022-04-05 01:20:31,091 INFO L91 elerationTransformer]: Accelerated Formula: (and (= (+ v_main_~i~0_3 v_main_~sum~0_2) v_main_~sum~0_1) (< v_main_~i~0_3 v_main_~n~0_2) (= v_main_~i~0_2 (+ v_main_~i~0_3 1))) InVars {main_~sum~0=v_main_~sum~0_2, main_~i~0=v_main_~i~0_3, main_~n~0=v_main_~n~0_2} OutVars{main_~sum~0=v_main_~sum~0_1, main_#t~post4=|v_main_#t~post4_1|, main_~i~0=v_main_~i~0_2, main_~n~0=v_main_~n~0_2} AuxVars[] AssignedVars[main_~sum~0, main_#t~post4, main_~i~0] to Formula: (let ((.cse1 (* (- 1) v_main_~i~0_3)) (.cse2 (* (- 1) v_main_~i~0_2))) (or (and (not (< v_main_~i~0_3 v_main_~n~0_2)) (= |v_main_#t~post4_3| |v_main_#t~post4_1|) (= v_main_~sum~0_2 v_main_~sum~0_1) (= v_main_~i~0_3 v_main_~i~0_2)) (let ((.cse0 (div (+ .cse2 v_main_~i~0_3 1) (- 2)))) (and (= (mod (+ v_main_~i~0_3 v_main_~i~0_2 1) 2) 0) (= (+ .cse0 v_main_~i~0_3 (* (* .cse0 .cse0) 2) (* 2 (* .cse0 v_main_~i~0_3)) v_main_~sum~0_2) v_main_~sum~0_1) (< .cse0 (+ (div (+ (- 1) v_main_~n~0_2 .cse1) 2) 1)) (<= 0 .cse0))) (let ((.cse3 (div (+ .cse2 v_main_~i~0_3) (- 2)))) (and (= (+ (* (* .cse3 .cse3) 2) (* 2 (* v_main_~i~0_3 .cse3)) v_main_~sum~0_2) (+ .cse3 v_main_~sum~0_1)) (< 0 .cse3) (< .cse3 (+ (div (+ (- 2) v_main_~n~0_2 .cse1) 2) 2)) (= (mod (+ v_main_~i~0_3 v_main_~i~0_2) 2) 0))))) InVars {main_~i~0=v_main_~i~0_3, main_#t~post4=|v_main_#t~post4_3|, main_~n~0=v_main_~n~0_2, main_~sum~0=v_main_~sum~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~i~0=v_main_~i~0_2, main_~n~0=v_main_~n~0_2, main_~sum~0=v_main_~sum~0_1} AuxVars[] AssignedVars[main_~sum~0, main_#t~post4, main_~i~0] [2022-04-05 01:20:31,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 01:20:31 BasicIcfg [2022-04-05 01:20:31,094 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 01:20:31,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 01:20:31,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 01:20:31,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 01:20:31,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 01:20:29" (1/4) ... [2022-04-05 01:20:31,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77db9830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 01:20:31, skipping insertion in model container [2022-04-05 01:20:31,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:20:29" (2/4) ... [2022-04-05 01:20:31,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77db9830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 01:20:31, skipping insertion in model container [2022-04-05 01:20:31,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 01:20:29" (3/4) ... [2022-04-05 01:20:31,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77db9830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 01:20:31, skipping insertion in model container [2022-04-05 01:20:31,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 01:20:31" (4/4) ... [2022-04-05 01:20:31,104 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark20_conjunctive.iJordan [2022-04-05 01:20:31,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 01:20:31,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 01:20:31,134 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 01:20:31,138 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 01:20:31,138 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 01:20:31,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-05 01:20:31,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-05 01:20:31,150 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 01:20:31,150 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 01:20:31,151 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 01:20:31,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 01:20:31,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1809217115, now seen corresponding path program 1 times [2022-04-05 01:20:31,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 01:20:31,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261638268] [2022-04-05 01:20:31,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 01:20:31,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 01:20:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 01:20:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 01:20:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 01:20:31,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 01:20:31,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 01:20:31,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261638268] [2022-04-05 01:20:31,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261638268] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 01:20:31,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 01:20:31,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-05 01:20:31,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158762012] [2022-04-05 01:20:31,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 01:20:31,278 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-05 01:20:31,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 01:20:31,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-05 01:20:31,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-05 01:20:31,296 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:31,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 01:20:31,313 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-04-05 01:20:31,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-05 01:20:31,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-05 01:20:31,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 01:20:31,319 INFO L225 Difference]: With dead ends: 20 [2022-04-05 01:20:31,320 INFO L226 Difference]: Without dead ends: 13 [2022-04-05 01:20:31,321 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-05 01:20:31,323 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-05 01:20:31,324 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-05 01:20:31,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-05 01:20:31,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-05 01:20:31,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:31,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-04-05 01:20:31,343 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12 [2022-04-05 01:20:31,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 01:20:31,343 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-04-05 01:20:31,343 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:31,344 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-05 01:20:31,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-05 01:20:31,344 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 01:20:31,344 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 01:20:31,344 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 01:20:31,345 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 01:20:31,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 01:20:31,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1810140636, now seen corresponding path program 1 times [2022-04-05 01:20:31,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 01:20:31,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092826350] [2022-04-05 01:20:31,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 01:20:31,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 01:20:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 01:20:31,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 01:20:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 01:20:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 01:20:31,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 01:20:31,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092826350] [2022-04-05 01:20:31,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092826350] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 01:20:31,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 01:20:31,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 01:20:31,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069254351] [2022-04-05 01:20:31,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 01:20:31,430 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 01:20:31,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 01:20:31,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 01:20:31,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 01:20:31,431 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:31,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 01:20:31,508 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-04-05 01:20:31,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 01:20:31,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-05 01:20:31,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 01:20:31,509 INFO L225 Difference]: With dead ends: 17 [2022-04-05 01:20:31,509 INFO L226 Difference]: Without dead ends: 14 [2022-04-05 01:20:31,510 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-05 01:20:31,511 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-05 01:20:31,511 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 28 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-05 01:20:31,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-04-05 01:20:31,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-04-05 01:20:31,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:31,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-04-05 01:20:31,514 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2022-04-05 01:20:31,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 01:20:31,514 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-04-05 01:20:31,514 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:31,514 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-05 01:20:31,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-05 01:20:31,514 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 01:20:31,515 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 01:20:31,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 01:20:31,515 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 01:20:31,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 01:20:31,515 INFO L85 PathProgramCache]: Analyzing trace with hash 306506437, now seen corresponding path program 1 times [2022-04-05 01:20:31,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 01:20:31,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656255229] [2022-04-05 01:20:31,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 01:20:31,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 01:20:31,537 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-05 01:20:31,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104344756] [2022-04-05 01:20:31,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 01:20:31,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 01:20:31,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 01:20:31,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 01:20:31,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 01:20:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 01:20:31,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-05 01:20:31,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 01:20:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 01:20:31,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 01:20:36,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 01:20:36,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 01:20:36,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656255229] [2022-04-05 01:20:36,180 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-05 01:20:36,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104344756] [2022-04-05 01:20:36,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104344756] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 01:20:36,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-05 01:20:36,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2022-04-05 01:20:36,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599169512] [2022-04-05 01:20:36,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-05 01:20:36,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 01:20:36,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 01:20:36,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 01:20:36,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-04-05 01:20:36,181 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:36,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 01:20:36,208 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-04-05 01:20:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 01:20:36,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-04-05 01:20:36,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 01:20:36,209 INFO L225 Difference]: With dead ends: 18 [2022-04-05 01:20:36,209 INFO L226 Difference]: Without dead ends: 15 [2022-04-05 01:20:36,210 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-04-05 01:20:36,212 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-05 01:20:36,213 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 45 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2022-04-05 01:20:36,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-04-05 01:20:36,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-04-05 01:20:36,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:36,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-04-05 01:20:36,219 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2022-04-05 01:20:36,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 01:20:36,219 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-04-05 01:20:36,220 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:36,220 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-05 01:20:36,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-05 01:20:36,220 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 01:20:36,220 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 01:20:36,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-05 01:20:36,435 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 01:20:36,436 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 01:20:36,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 01:20:36,437 INFO L85 PathProgramCache]: Analyzing trace with hash 938486524, now seen corresponding path program 2 times [2022-04-05 01:20:36,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 01:20:36,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966794981] [2022-04-05 01:20:36,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 01:20:36,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 01:20:36,445 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-05 01:20:36,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1229906327] [2022-04-05 01:20:36,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-05 01:20:36,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 01:20:36,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 01:20:36,458 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 01:20:36,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-05 01:20:36,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-05 01:20:36,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-05 01:20:36,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-05 01:20:36,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 01:20:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 01:20:37,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 01:20:47,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 01:20:47,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 01:20:47,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966794981] [2022-04-05 01:20:47,117 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-05 01:20:47,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229906327] [2022-04-05 01:20:47,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229906327] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 01:20:47,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-05 01:20:47,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-04-05 01:20:47,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828069991] [2022-04-05 01:20:47,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-05 01:20:47,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-05 01:20:47,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 01:20:47,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-05 01:20:47,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=49, Unknown=1, NotChecked=0, Total=72 [2022-04-05 01:20:47,119 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:49,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-05 01:20:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 01:20:52,386 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-04-05 01:20:52,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 01:20:52,396 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-05 01:20:52,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 01:20:52,397 INFO L225 Difference]: With dead ends: 20 [2022-04-05 01:20:52,397 INFO L226 Difference]: Without dead ends: 17 [2022-04-05 01:20:52,397 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=32, Invalid=76, Unknown=2, NotChecked=0, Total=110 [2022-04-05 01:20:52,398 INFO L913 BasicCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-05 01:20:52,398 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 55 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 1 Unknown, 8 Unchecked, 2.1s Time] [2022-04-05 01:20:52,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-04-05 01:20:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-04-05 01:20:52,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:52,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-04-05 01:20:52,400 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2022-04-05 01:20:52,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 01:20:52,400 INFO L478 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-04-05 01:20:52,400 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 01:20:52,401 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-04-05 01:20:52,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-05 01:20:52,401 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 01:20:52,401 INFO L499 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 01:20:52,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-05 01:20:52,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-04-05 01:20:52,604 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 01:20:52,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 01:20:52,604 INFO L85 PathProgramCache]: Analyzing trace with hash 797507612, now seen corresponding path program 3 times [2022-04-05 01:20:52,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 01:20:52,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558547183] [2022-04-05 01:20:52,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 01:20:52,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 01:20:52,611 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-05 01:20:52,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [158359781] [2022-04-05 01:20:52,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-05 01:20:52,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 01:20:52,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 01:20:52,617 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 01:20:52,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-05 01:20:53,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-04-05 01:20:53,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-05 01:20:53,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-05 01:20:53,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 01:21:38,276 WARN L232 SmtUtils]: Spent 37.32s on a formula simplification that was a NOOP. DAG size: 112 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-04-05 01:23:21,161 WARN L232 SmtUtils]: Spent 1.12m on a formula simplification that was a NOOP. DAG size: 191 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-04-05 01:25:26,112 WARN L232 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 7 DAG size of output: 1 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)