/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-invgen/half_2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 03:32:05,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 03:32:05,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 03:32:05,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 03:32:05,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 03:32:05,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 03:32:05,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 03:32:05,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 03:32:05,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 03:32:05,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 03:32:05,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 03:32:05,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 03:32:05,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 03:32:05,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 03:32:05,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 03:32:05,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 03:32:05,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 03:32:05,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 03:32:05,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 03:32:05,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 03:32:05,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 03:32:05,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 03:32:05,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 03:32:05,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 03:32:05,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-16 03:32:05,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-16 03:32:05,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-16 03:32:05,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-16 03:32:05,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-16 03:32:05,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-16 03:32:05,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 03:32:05,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 03:32:05,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 03:32:05,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 03:32:05,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 03:32:05,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 03:32:05,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 03:32:05,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 03:32:05,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 03:32:05,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 03:32:05,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 03:32:05,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-04-16 03:32:05,755 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 03:32:05,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 03:32:05,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 03:32:05,756 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 03:32:05,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 03:32:05,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 03:32:05,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 03:32:05,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 03:32:05,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 03:32:05,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 03:32:05,757 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 03:32:05,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 03:32:05,758 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 03:32:05,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 03:32:05,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 03:32:05,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 03:32:05,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 03:32:05,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 03:32:05,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 03:32:05,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 03:32:05,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-16 03:32:05,760 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-04-16 03:32:05,760 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 03:32:06,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 03:32:06,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 03:32:06,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 03:32:06,074 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 03:32:06,076 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 03:32:06,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/half_2.i [2021-04-16 03:32:06,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4472cf460/7de58f30917f4aca97afba34731a1781/FLAG33d467844 [2021-04-16 03:32:06,582 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 03:32:06,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/half_2.i [2021-04-16 03:32:06,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4472cf460/7de58f30917f4aca97afba34731a1781/FLAG33d467844 [2021-04-16 03:32:06,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4472cf460/7de58f30917f4aca97afba34731a1781 [2021-04-16 03:32:06,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 03:32:06,609 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-16 03:32:06,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 03:32:06,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 03:32:06,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 03:32:06,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 03:32:06" (1/1) ... [2021-04-16 03:32:06,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750358cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:32:06, skipping insertion in model container [2021-04-16 03:32:06,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 03:32:06" (1/1) ... [2021-04-16 03:32:06,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 03:32:06,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 03:32:06,739 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/half_2.i[893,906] [2021-04-16 03:32:06,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 03:32:06,759 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 03:32:06,771 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/half_2.i[893,906] [2021-04-16 03:32:06,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 03:32:06,789 INFO L208 MainTranslator]: Completed translation [2021-04-16 03:32:06,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:32:06 WrapperNode [2021-04-16 03:32:06,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 03:32:06,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 03:32:06,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 03:32:06,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 03:32:06,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:32:06" (1/1) ... [2021-04-16 03:32:06,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:32:06" (1/1) ... [2021-04-16 03:32:06,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:32:06" (1/1) ... [2021-04-16 03:32:06,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:32:06" (1/1) ... [2021-04-16 03:32:06,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:32:06" (1/1) ... [2021-04-16 03:32:06,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:32:06" (1/1) ... [2021-04-16 03:32:06,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:32:06" (1/1) ... [2021-04-16 03:32:06,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 03:32:06,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 03:32:06,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 03:32:06,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 03:32:06,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:32:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-04-16 03:32:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 03:32:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 03:32:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 03:32:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 03:32:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 03:32:06,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 03:32:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 03:32:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 03:32:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-04-16 03:32:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-04-16 03:32:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 03:32:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 03:32:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 03:32:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 03:32:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-04-16 03:32:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 03:32:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 03:32:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 03:32:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 03:32:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 03:32:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 03:32:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 03:32:07,205 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 03:32:07,205 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-04-16 03:32:07,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 03:32:07 BoogieIcfgContainer [2021-04-16 03:32:07,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 03:32:07,207 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-04-16 03:32:07,207 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-04-16 03:32:07,207 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-04-16 03:32:07,209 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 03:32:07" (1/1) ... [2021-04-16 03:32:07,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 03:32:07,255 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< v_main_~i~0_5 v_main_~n~0_9) InVars {main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_9} OutVars{main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_9} AuxVars[] AssignedVars[] [2021-04-16 03:32:07,269 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 83.3 percent of original size [2021-04-16 03:32:07,280 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,287 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,292 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,298 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,303 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,311 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 03:32:07,318 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,324 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,330 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,337 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,353 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 03:32:07,358 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,362 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 83.3 percent of original size 60 [2021-04-16 03:32:07,403 INFO L1067 elerationTransformer]: Accelerated Formula: (and (= v_main_~i~0_4 (+ v_main_~i~0_5 2)) (= (+ v_main_~k~0_6 1) v_main_~k~0_7) (< v_main_~i~0_5 v_main_~n~0_9)) InVars {main_~k~0=v_main_~k~0_7, main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_9} OutVars{main_~k~0=v_main_~k~0_6, main_~i~0=v_main_~i~0_4, main_#t~post4=|v_main_#t~post4_1|, main_~n~0=v_main_~n~0_9} AuxVars[] AssignedVars[main_~k~0, main_~i~0, main_#t~post4] with Formula: (or (and (= v_itFin_1 0) (= v_main_~k~0_7 v_main_~k~0_6) (<= v_main_~n~0_9 v_main_~i~0_5) (= |v_main_#t~post4_3| |v_main_#t~post4_1|) (= v_main_~i~0_4 v_main_~i~0_5)) (let ((.cse0 (+ (* 2 v_itFin_1) v_main_~i~0_5))) (and (<= v_main_~n~0_9 .cse0) (= v_main_~k~0_7 (+ v_itFin_1 v_main_~k~0_6)) (< v_main_~i~0_5 v_main_~n~0_9) (= v_main_~i~0_4 .cse0) (< v_itFin_1 (+ (div (+ (* v_main_~i~0_5 (- 1)) v_main_~n~0_9 (- 1)) 2) 2))))) InVars {main_~i~0=v_main_~i~0_5, main_#t~post4=|v_main_#t~post4_3|, main_~n~0=v_main_~n~0_9, main_~k~0=v_main_~k~0_7} OutVars{main_~i~0=v_main_~i~0_4, main_#t~post4=|v_main_#t~post4_1|, main_~n~0=v_main_~n~0_9, main_~k~0=v_main_~k~0_6} AuxVars[v_itFin_1] AssignedVars[main_~k~0, main_~i~0, main_#t~post4] [2021-04-16 03:32:07,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 03:32:07 BasicIcfg [2021-04-16 03:32:07,411 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-04-16 03:32:07,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 03:32:07,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 03:32:07,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 03:32:07,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 03:32:06" (1/4) ... [2021-04-16 03:32:07,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a452c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 03:32:07, skipping insertion in model container [2021-04-16 03:32:07,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:32:06" (2/4) ... [2021-04-16 03:32:07,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a452c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 03:32:07, skipping insertion in model container [2021-04-16 03:32:07,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 03:32:07" (3/4) ... [2021-04-16 03:32:07,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a452c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 03:32:07, skipping insertion in model container [2021-04-16 03:32:07,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 03:32:07" (4/4) ... [2021-04-16 03:32:07,419 INFO L111 eAbstractionObserver]: Analyzing ICFG half_2.iJordan [2021-04-16 03:32:07,423 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-04-16 03:32:07,437 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 03:32:07,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 03:32:07,475 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 03:32:07,476 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-16 03:32:07,476 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-04-16 03:32:07,476 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 03:32:07,476 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 03:32:07,476 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 03:32:07,476 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 03:32:07,476 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 03:32:07,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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) [2021-04-16 03:32:07,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-04-16 03:32:07,494 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 03:32:07,495 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 03:32:07,495 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 03:32:07,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 03:32:07,501 INFO L82 PathProgramCache]: Analyzing trace with hash 101012931, now seen corresponding path program 1 times [2021-04-16 03:32:07,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 03:32:07,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283413699] [2021-04-16 03:32:07,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 03:32:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:32:07,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:07,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:07,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 03:32:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:32:07,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 03:32:07,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283413699] [2021-04-16 03:32:07,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 03:32:07,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-16 03:32:07,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572951556] [2021-04-16 03:32:07,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-16 03:32:07,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 03:32:07,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-16 03:32:07,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 03:32:07,748 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-04-16 03:32:07,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 03:32:07,783 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2021-04-16 03:32:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 03:32:07,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 14 [2021-04-16 03:32:07,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 03:32:07,790 INFO L225 Difference]: With dead ends: 23 [2021-04-16 03:32:07,791 INFO L226 Difference]: Without dead ends: 18 [2021-04-16 03:32:07,792 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 03:32:07,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-04-16 03:32:07,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-04-16 03:32:07,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-04-16 03:32:07,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-04-16 03:32:07,819 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 14 [2021-04-16 03:32:07,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 03:32:07,819 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-04-16 03:32:07,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-04-16 03:32:07,820 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-04-16 03:32:07,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-04-16 03:32:07,820 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 03:32:07,820 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 03:32:07,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 03:32:07,821 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 03:32:07,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 03:32:07,822 INFO L82 PathProgramCache]: Analyzing trace with hash 988516612, now seen corresponding path program 1 times [2021-04-16 03:32:07,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 03:32:07,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539244813] [2021-04-16 03:32:07,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 03:32:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:32:07,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:07,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 03:32:07,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 03:32:07,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 03:32:07,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:07,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 03:32:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:32:07,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:07,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:07,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 03:32:07,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539244813] [2021-04-16 03:32:07,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 03:32:07,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-16 03:32:07,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043022196] [2021-04-16 03:32:07,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-16 03:32:07,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 03:32:07,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-16 03:32:07,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-16 03:32:07,917 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-04-16 03:32:08,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 03:32:08,034 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-04-16 03:32:08,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-16 03:32:08,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 14 [2021-04-16 03:32:08,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 03:32:08,036 INFO L225 Difference]: With dead ends: 21 [2021-04-16 03:32:08,036 INFO L226 Difference]: Without dead ends: 19 [2021-04-16 03:32:08,037 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 106.1ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-04-16 03:32:08,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-04-16 03:32:08,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-04-16 03:32:08,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-04-16 03:32:08,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-04-16 03:32:08,041 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2021-04-16 03:32:08,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 03:32:08,041 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-04-16 03:32:08,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-04-16 03:32:08,041 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-04-16 03:32:08,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-04-16 03:32:08,042 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 03:32:08,042 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 03:32:08,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 03:32:08,042 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 03:32:08,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 03:32:08,043 INFO L82 PathProgramCache]: Analyzing trace with hash 459251866, now seen corresponding path program 1 times [2021-04-16 03:32:08,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 03:32:08,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179976212] [2021-04-16 03:32:08,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 03:32:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:32:08,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 03:32:08,098 INFO L142 QuantifierPusher]: treesize reduction 12, result has 55.6 percent of original size [2021-04-16 03:32:08,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-16 03:32:08,113 INFO L142 QuantifierPusher]: treesize reduction 12, result has 61.3 percent of original size [2021-04-16 03:32:08,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-16 03:32:08,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 03:32:08,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 03:32:08,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 03:32:08,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 03:32:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:32:08,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 03:32:08,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179976212] [2021-04-16 03:32:08,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445469192] [2021-04-16 03:32:08,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2021-04-16 03:32:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:32:08,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-16 03:32:08,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-16 03:32:08,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:32:08,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 03:32:08,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 03:32:08,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 03:32:08,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 03:32:08,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 03:32:08,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 03:32:08,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 03:32:08,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 03:32:08,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-04-16 03:32:08,394 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-16 03:32:08,397 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,401 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.9 percent of original size 35 [2021-04-16 03:32:08,403 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.9 percent of original size 35 [2021-04-16 03:32:08,404 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.9 percent of original size [2021-04-16 03:32:08,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-04-16 03:32:08,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 03:32:08,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 03:32:08,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 03:32:08,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 03:32:08,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-16 03:32:08,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-16 03:32:08,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-16 03:32:08,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-16 03:32:08,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-04-16 03:32:08,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-04-16 03:32:08,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-04-16 03:32:08,470 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-04-16 03:32:08,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,473 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-16 03:32:08,475 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-04-16 03:32:08,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-04-16 03:32:08,481 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-16 03:32:08,482 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,497 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-04-16 03:32:08,499 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size 29 [2021-04-16 03:32:08,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,502 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-16 03:32:08,503 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,517 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.9 percent of original size 62 [2021-04-16 03:32:08,518 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.9 percent of original size 62 [2021-04-16 03:32:08,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,561 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.0 percent of original size 26 [2021-04-16 03:32:08,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,568 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-04-16 03:32:08,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,575 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size 29 [2021-04-16 03:32:08,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,577 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-16 03:32:08,581 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:08,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:32:08,703 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-16 03:32:08,919 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-16 03:32:09,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:09,121 INFO L142 QuantifierPusher]: treesize reduction 25, result has 95.8 percent of original size [2021-04-16 03:32:09,164 INFO L147 QuantifierPusher]: treesize reduction -30, result has 101.1 percent of original size 2741 [2021-04-16 03:32:09,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:09,198 INFO L142 QuantifierPusher]: treesize reduction 16, result has 99.3 percent of original size [2021-04-16 03:32:09,783 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-16 03:32:13,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:13,821 INFO L142 QuantifierPusher]: treesize reduction -36, result has 101.2 percent of original size [2021-04-16 03:32:14,552 WARN L205 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 1609 DAG size of output: 1593 [2021-04-16 03:32:14,603 INFO L147 QuantifierPusher]: treesize reduction -4283, result has 106.5 percent of original size 70402 [2021-04-16 03:32:14,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:14,705 INFO L142 QuantifierPusher]: treesize reduction -221, result has 103.8 percent of original size [2021-04-16 03:32:18,576 WARN L205 SmtUtils]: Spent 3.79 s on a formula simplification. DAG size of input: 4501 DAG size of output: 1540 [2021-04-16 03:32:18,632 INFO L147 QuantifierPusher]: treesize reduction 168515, result has 28.7 percent of original size 67888 [2021-04-16 03:32:18,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:18,838 INFO L142 QuantifierPusher]: treesize reduction 2794, result has 68.6 percent of original size [2021-04-16 03:32:22,486 WARN L205 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 4370 DAG size of output: 1469 [2021-04-16 03:32:22,526 INFO L147 QuantifierPusher]: treesize reduction 166166, result has 28.2 percent of original size 65249 [2021-04-16 03:32:22,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:32:22,719 INFO L142 QuantifierPusher]: treesize reduction 5692, result has 56.6 percent of original size [2021-04-16 03:32:23,669 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-16 03:33:09,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:33:09,523 INFO L142 QuantifierPusher]: treesize reduction -281, result has 101.0 percent of original size [2021-04-16 03:35:23,524 WARN L205 SmtUtils]: Spent 2.23 m on a formula simplification. DAG size of input: 26246 DAG size of output: 10723 [2021-04-16 03:35:23,913 INFO L147 QuantifierPusher]: treesize reduction 1677334, result has 35.9 percent of original size 939789 [2021-04-16 03:35:24,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 03:35:24,516 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 2673 DAG size of output: 1779 [2021-04-16 03:35:24,535 INFO L142 QuantifierPusher]: treesize reduction 15371, result has 68.9 percent of original size [2021-04-16 03:35:27,629 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-16 03:35:34,059 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-16 03:35:44,245 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-16 03:35:58,076 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug.