/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-new/gauss_sum.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 00:36:29,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 00:36:29,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 00:36:29,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 00:36:29,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 00:36:29,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 00:36:29,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 00:36:29,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 00:36:29,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 00:36:29,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 00:36:29,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 00:36:29,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 00:36:29,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 00:36:29,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 00:36:29,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 00:36:29,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 00:36:29,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 00:36:29,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 00:36:29,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 00:36:29,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 00:36:29,854 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 00:36:29,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 00:36:29,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 00:36:29,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 00:36:29,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 00:36:29,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 00:36:29,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 00:36:29,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 00:36:29,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 00:36:29,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 00:36:29,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-05 00:36:29,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-05 00:36:29,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-05 00:36:29,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-05 00:36:29,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-05 00:36:29,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-05 00:36:29,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-05 00:36:29,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-05 00:36:29,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-05 00:36:29,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 00:36:29,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 00:36:29,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 00:36:29,864 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 00:36:29,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 00:36:29,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 00:36:29,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 00:36:29,870 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 00:36:29,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 00:36:29,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 00:36:29,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 00:36:29,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 00:36:29,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 00:36:29,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 00:36:29,871 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 00:36:29,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 00:36:29,871 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 00:36:29,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 00:36:29,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 00:36:29,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 00:36:29,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 00:36:29,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 00:36:29,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 00:36:29,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 00:36:29,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 00:36:29,873 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 00:36:29,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 00:36:30,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 00:36:30,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 00:36:30,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 00:36:30,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 00:36:30,066 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 00:36:30,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2022-04-05 00:36:30,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f2cc8dea/8989732d4bf64ab5a51f3939262f4b11/FLAG5c4d8368c [2022-04-05 00:36:30,426 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 00:36:30,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2022-04-05 00:36:30,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f2cc8dea/8989732d4bf64ab5a51f3939262f4b11/FLAG5c4d8368c [2022-04-05 00:36:30,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f2cc8dea/8989732d4bf64ab5a51f3939262f4b11 [2022-04-05 00:36:30,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 00:36:30,867 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 00:36:30,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 00:36:30,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 00:36:30,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 00:36:30,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 12:36:30" (1/1) ... [2022-04-05 00:36:30,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4556360f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:36:30, skipping insertion in model container [2022-04-05 00:36:30,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 12:36:30" (1/1) ... [2022-04-05 00:36:30,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 00:36:30,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 00:36:31,014 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-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2022-04-05 00:36:31,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 00:36:31,024 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 00:36:31,048 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-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2022-04-05 00:36:31,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 00:36:31,061 INFO L208 MainTranslator]: Completed translation [2022-04-05 00:36:31,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:36:31 WrapperNode [2022-04-05 00:36:31,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 00:36:31,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 00:36:31,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 00:36:31,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 00:36:31,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:36:31" (1/1) ... [2022-04-05 00:36:31,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:36:31" (1/1) ... [2022-04-05 00:36:31,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:36:31" (1/1) ... [2022-04-05 00:36:31,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:36:31" (1/1) ... [2022-04-05 00:36:31,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:36:31" (1/1) ... [2022-04-05 00:36:31,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:36:31" (1/1) ... [2022-04-05 00:36:31,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:36:31" (1/1) ... [2022-04-05 00:36:31,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 00:36:31,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 00:36:31,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 00:36:31,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 00:36:31,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:36:31" (1/1) ... [2022-04-05 00:36:31,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 00:36:31,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 00:36:31,104 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 00:36:31,110 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 00:36:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 00:36:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 00:36:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 00:36:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-05 00:36:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 00:36:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 00:36:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 00:36:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 00:36:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 00:36:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-05 00:36:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-05 00:36:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 00:36:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 00:36:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 00:36:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 00:36:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 00:36:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 00:36:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 00:36:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 00:36:31,172 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 00:36:31,174 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 00:36:31,312 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 00:36:31,316 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 00:36:31,316 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-05 00:36:31,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 12:36:31 BoogieIcfgContainer [2022-04-05 00:36:31,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 00:36:31,318 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 00:36:31,318 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 00:36:31,319 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 00:36:31,321 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 12:36:31" (1/1) ... [2022-04-05 00:36:31,322 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 00:36:32,248 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={3=1}}, 0 SequentialAcceleration, 1 AlternatingAcceleration, 1 QuantifierFreeResult [2022-04-05 00:36:32,248 INFO L91 elerationTransformer]: Accelerated Formula: (and (= (+ v_main_~main__sum~0_4 v_main_~main__i~0_4) v_main_~main__sum~0_3) (= (+ v_main_~main__i~0_4 1) v_main_~main__i~0_3) (<= v_main_~main__i~0_4 v_main_~main__n~0_2)) InVars {main_~main__n~0=v_main_~main__n~0_2, main_~main__sum~0=v_main_~main__sum~0_4, main_~main__i~0=v_main_~main__i~0_4} OutVars{main_~main__n~0=v_main_~main__n~0_2, main_~main__sum~0=v_main_~main__sum~0_3, main_~main__i~0=v_main_~main__i~0_3} AuxVars[] AssignedVars[main_~main__sum~0, main_~main__i~0] to Formula: (let ((.cse1 (* (- 1) v_main_~main__i~0_4))) (or (let ((.cse0 (div (+ .cse1 v_main_~main__i~0_3) 2))) (and (= (mod (+ v_main_~main__i~0_4 v_main_~main__i~0_3) 2) 0) (= (+ (* (* .cse0 .cse0) 2) (* (* .cse0 v_main_~main__i~0_4) 2) v_main_~main__sum~0_4) (+ .cse0 v_main_~main__sum~0_3)) (<= .cse0 (+ (div (+ (- 1) .cse1 v_main_~main__n~0_2) 2) 1)) (< 0 .cse0))) (and (not (<= v_main_~main__i~0_4 v_main_~main__n~0_2)) (= v_main_~main__i~0_4 v_main_~main__i~0_3) (= v_main_~main__sum~0_4 v_main_~main__sum~0_3)) (let ((.cse2 (div (+ (- 1) .cse1 v_main_~main__i~0_3) 2))) (and (= (+ .cse2 v_main_~main__sum~0_4 (* 2 (* .cse2 .cse2)) (* 2 (* .cse2 v_main_~main__i~0_4)) v_main_~main__i~0_4) v_main_~main__sum~0_3) (<= 0 .cse2) (= (mod (+ v_main_~main__i~0_4 v_main_~main__i~0_3 1) 2) 0) (<= .cse2 (div (+ .cse1 v_main_~main__n~0_2) 2)))))) InVars {main_~main__n~0=v_main_~main__n~0_2, main_~main__sum~0=v_main_~main__sum~0_4, main_~main__i~0=v_main_~main__i~0_4} OutVars{main_~main__n~0=v_main_~main__n~0_2, main_~main__sum~0=v_main_~main__sum~0_3, main_~main__i~0=v_main_~main__i~0_3} AuxVars[] AssignedVars[main_~main__sum~0, main_~main__i~0] [2022-04-05 00:36:32,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 12:36:32 BasicIcfg [2022-04-05 00:36:32,252 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 00:36:32,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 00:36:32,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 00:36:32,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 00:36:32,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 12:36:30" (1/4) ... [2022-04-05 00:36:32,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eeecc4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 12:36:32, skipping insertion in model container [2022-04-05 00:36:32,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:36:31" (2/4) ... [2022-04-05 00:36:32,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eeecc4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 12:36:32, skipping insertion in model container [2022-04-05 00:36:32,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 12:36:31" (3/4) ... [2022-04-05 00:36:32,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eeecc4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 12:36:32, skipping insertion in model container [2022-04-05 00:36:32,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 12:36:32" (4/4) ... [2022-04-05 00:36:32,259 INFO L111 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.cJordan [2022-04-05 00:36:32,262 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 00:36:32,263 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 00:36:32,285 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 00:36:32,291 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 00:36:32,291 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 00:36:32,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-05 00:36:32,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-05 00:36:32,305 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 00:36:32,305 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 00:36:32,305 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 00:36:32,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 00:36:32,308 INFO L85 PathProgramCache]: Analyzing trace with hash 456799944, now seen corresponding path program 1 times [2022-04-05 00:36:32,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 00:36:32,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116521239] [2022-04-05 00:36:32,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 00:36:32,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 00:36:32,400 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-05 00:36:32,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372244732] [2022-04-05 00:36:32,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 00:36:32,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 00:36:32,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 00:36:32,402 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 00:36:32,403 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 00:36:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:36:32,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 28 conjunts are in the unsatisfiable core [2022-04-05 00:36:32,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 00:36:32,642 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 00:36:32,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 00:36:32,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 00:36:32,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116521239] [2022-04-05 00:36:32,643 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-05 00:36:32,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372244732] [2022-04-05 00:36:32,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372244732] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 00:36:32,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 00:36:32,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-05 00:36:32,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188489818] [2022-04-05 00:36:32,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 00:36:32,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-05 00:36:32,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 00:36:32,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-05 00:36:32,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-04-05 00:36:32,666 INFO L87 Difference]: Start difference. First operand has 21 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:36:32,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 00:36:32,769 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2022-04-05 00:36:32,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 00:36:32,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-04-05 00:36:32,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 00:36:32,775 INFO L225 Difference]: With dead ends: 35 [2022-04-05 00:36:32,775 INFO L226 Difference]: Without dead ends: 18 [2022-04-05 00:36:32,776 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-05 00:36:32,778 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 15 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-05 00:36:32,779 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 194 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-05 00:36:32,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-04-05 00:36:32,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-04-05 00:36:32,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:36:32,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-04-05 00:36:32,801 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2022-04-05 00:36:32,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 00:36:32,801 INFO L478 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-04-05 00:36:32,801 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:36:32,801 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-04-05 00:36:32,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-05 00:36:32,802 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 00:36:32,802 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 00:36:32,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-05 00:36:33,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-04-05 00:36:33,008 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 00:36:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 00:36:33,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1275865648, now seen corresponding path program 1 times [2022-04-05 00:36:33,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 00:36:33,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002811638] [2022-04-05 00:36:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 00:36:33,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 00:36:33,028 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-05 00:36:33,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549677837] [2022-04-05 00:36:33,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 00:36:33,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 00:36:33,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 00:36:33,030 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 00:36:33,031 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 00:36:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:36:33,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 30 conjunts are in the unsatisfiable core [2022-04-05 00:36:33,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 00:36:35,932 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 00:36:35,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 00:38:07,868 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 00:38:07,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 00:38:07,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002811638] [2022-04-05 00:38:07,869 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-05 00:38:07,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549677837] [2022-04-05 00:38:07,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549677837] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 00:38:07,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-05 00:38:07,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-04-05 00:38:07,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794245207] [2022-04-05 00:38:07,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-05 00:38:07,870 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-05 00:38:07,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 00:38:07,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-05 00:38:07,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=172, Unknown=35, NotChecked=0, Total=272 [2022-04-05 00:38:07,871 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:38:12,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-05 00:38:25,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 00:38:25,076 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-04-05 00:38:25,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 00:38:25,076 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-04-05 00:38:25,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 00:38:25,077 INFO L225 Difference]: With dead ends: 16 [2022-04-05 00:38:25,077 INFO L226 Difference]: Without dead ends: 0 [2022-04-05 00:38:25,078 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 105.2s TimeCoverageRelationStatistics Valid=110, Invalid=311, Unknown=41, NotChecked=0, Total=462 [2022-04-05 00:38:25,078 INFO L913 BasicCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-05 00:38:25,079 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 56 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 25 Unchecked, 1.9s Time] [2022-04-05 00:38:25,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-05 00:38:25,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-05 00:38:25,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-05 00:38:25,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-05 00:38:25,080 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-04-05 00:38:25,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 00:38:25,080 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-05 00:38:25,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:38:25,080 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-05 00:38:25,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-05 00:38:25,082 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-05 00:38:25,089 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 00:38:25,282 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,SelfDestructingSolverStorable1 [2022-04-05 00:38:25,284 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-05 00:38:25,285 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-05 00:38:25,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 12:38:25 BasicIcfg [2022-04-05 00:38:25,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-05 00:38:25,288 INFO L158 Benchmark]: Toolchain (without parser) took 114421.02ms. Allocated memory was 207.6MB in the beginning and 257.9MB in the end (delta: 50.3MB). Free memory was 159.2MB in the beginning and 158.5MB in the end (delta: 619.4kB). Peak memory consumption was 51.7MB. Max. memory is 8.0GB. [2022-04-05 00:38:25,288 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 207.6MB. Free memory was 175.1MB in the beginning and 175.0MB in the end (delta: 75.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-05 00:38:25,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.69ms. Allocated memory is still 207.6MB. Free memory was 158.9MB in the beginning and 183.4MB in the end (delta: -24.4MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-04-05 00:38:25,289 INFO L158 Benchmark]: Boogie Preprocessor took 16.08ms. Allocated memory is still 207.6MB. Free memory was 183.4MB in the beginning and 182.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-05 00:38:25,289 INFO L158 Benchmark]: RCFGBuilder took 238.74ms. Allocated memory is still 207.6MB. Free memory was 181.8MB in the beginning and 171.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-05 00:38:25,289 INFO L158 Benchmark]: IcfgTransformer took 933.46ms. Allocated memory is still 207.6MB. Free memory was 171.3MB in the beginning and 155.0MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-04-05 00:38:25,290 INFO L158 Benchmark]: TraceAbstraction took 113034.68ms. Allocated memory was 207.6MB in the beginning and 257.9MB in the end (delta: 50.3MB). Free memory was 154.5MB in the beginning and 158.5MB in the end (delta: -4.0MB). Peak memory consumption was 46.9MB. Max. memory is 8.0GB. [2022-04-05 00:38:25,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={3=1}}, 0 SequentialAcceleration, 1 AlternatingAcceleration, 1 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 207.6MB. Free memory was 175.1MB in the beginning and 175.0MB in the end (delta: 75.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 192.69ms. Allocated memory is still 207.6MB. Free memory was 158.9MB in the beginning and 183.4MB in the end (delta: -24.4MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.08ms. Allocated memory is still 207.6MB. Free memory was 183.4MB in the beginning and 182.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 238.74ms. Allocated memory is still 207.6MB. Free memory was 181.8MB in the beginning and 171.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 933.46ms. Allocated memory is still 207.6MB. Free memory was 171.3MB in the beginning and 155.0MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 113034.68ms. Allocated memory was 207.6MB in the beginning and 257.9MB in the end (delta: 50.3MB). Free memory was 154.5MB in the beginning and 158.5MB in the end (delta: -4.0MB). Peak memory consumption was 46.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 69]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 113.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 250 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 25 IncrementalHoareTripleChecker+Unchecked, 215 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 35 mSDtfsCounter, 134 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 105.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 94.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 47 ConstructedInterpolants, 6 QuantifiedInterpolants, 1553 SizeOfPredicates, 9 NumberOfNonLiveVariables, 193 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-05 00:38:25,503 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-04-05 00:38:25,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...