/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-6c470ae [2022-02-14 20:54:10,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-14 20:54:10,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-14 20:54:10,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-14 20:54:10,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-14 20:54:10,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-14 20:54:10,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-14 20:54:10,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-14 20:54:10,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-14 20:54:10,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-14 20:54:10,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-14 20:54:10,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-14 20:54:10,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-14 20:54:10,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-14 20:54:10,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-14 20:54:10,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-14 20:54:10,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-14 20:54:10,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-14 20:54:10,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-14 20:54:10,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-14 20:54:10,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-14 20:54:10,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-14 20:54:10,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-14 20:54:10,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-14 20:54:10,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-14 20:54:10,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-14 20:54:10,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-14 20:54:10,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-14 20:54:10,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-14 20:54:10,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-14 20:54:10,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-14 20:54:10,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-14 20:54:10,991 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-14 20:54:10,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-14 20:54:10,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-14 20:54:10,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-14 20:54:10,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-14 20:54:10,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-14 20:54:10,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-14 20:54:10,992 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-14 20:54:10,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-14 20:54:10,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-14 20:54:10,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-14 20:54:10,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-14 20:54:10,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-14 20:54:10,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-14 20:54:10,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-14 20:54:10,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 20:54:10,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-14 20:54:10,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-14 20:54:10,993 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-14 20:54:10,993 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-14 20:54:11,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-14 20:54:11,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-14 20:54:11,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-14 20:54:11,197 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-14 20:54:11,197 INFO L275 PluginConnector]: CDTParser initialized [2022-02-14 20:54:11,198 INFO L432 ainManager$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 [2022-02-14 20:54:11,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be5ad13b/de6cbd564c5b4057bd815f80d1014cc7/FLAGd32a4ef7b [2022-02-14 20:54:11,594 INFO L306 CDTParser]: Found 1 translation units. [2022-02-14 20:54:11,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2022-02-14 20:54:11,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be5ad13b/de6cbd564c5b4057bd815f80d1014cc7/FLAGd32a4ef7b [2022-02-14 20:54:11,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be5ad13b/de6cbd564c5b4057bd815f80d1014cc7 [2022-02-14 20:54:11,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-14 20:54:11,608 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-14 20:54:11,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-14 20:54:11,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-14 20:54:11,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-14 20:54:11,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 08:54:11" (1/1) ... [2022-02-14 20:54:11,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651b5e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:54:11, skipping insertion in model container [2022-02-14 20:54:11,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 08:54:11" (1/1) ... [2022-02-14 20:54:11,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-14 20:54:11,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-14 20:54:11,763 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] [2022-02-14 20:54:11,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 20:54:11,772 INFO L203 MainTranslator]: Completed pre-run [2022-02-14 20:54:11,794 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] [2022-02-14 20:54:11,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 20:54:11,805 INFO L208 MainTranslator]: Completed translation [2022-02-14 20:54:11,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:54:11 WrapperNode [2022-02-14 20:54:11,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-14 20:54:11,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-14 20:54:11,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-14 20:54:11,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-14 20:54:11,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:54:11" (1/1) ... [2022-02-14 20:54:11,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:54:11" (1/1) ... [2022-02-14 20:54:11,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:54:11" (1/1) ... [2022-02-14 20:54:11,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:54:11" (1/1) ... [2022-02-14 20:54:11,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:54:11" (1/1) ... [2022-02-14 20:54:11,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:54:11" (1/1) ... [2022-02-14 20:54:11,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:54:11" (1/1) ... [2022-02-14 20:54:11,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-14 20:54:11,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-14 20:54:11,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-14 20:54:11,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-14 20:54:11,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:54:11" (1/1) ... [2022-02-14 20:54:11,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 20:54:11,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 20:54:11,870 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) [2022-02-14 20:54:11,907 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 [2022-02-14 20:54:11,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-14 20:54:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-14 20:54:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-14 20:54:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-14 20:54:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-14 20:54:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-14 20:54:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-14 20:54:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-14 20:54:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-14 20:54:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-14 20:54:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-14 20:54:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-14 20:54:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-14 20:54:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-14 20:54:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-14 20:54:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-14 20:54:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-14 20:54:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-14 20:54:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-14 20:54:11,971 INFO L234 CfgBuilder]: Building ICFG [2022-02-14 20:54:11,973 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-14 20:54:12,079 INFO L275 CfgBuilder]: Performing block encoding [2022-02-14 20:54:12,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-14 20:54:12,088 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-14 20:54:12,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 08:54:12 BoogieIcfgContainer [2022-02-14 20:54:12,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-14 20:54:12,096 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-14 20:54:12,096 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-14 20:54:12,097 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-14 20:54:12,111 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 08:54:12" (1/1) ... [2022-02-14 20:54:12,995 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={3=1}}, 0 SequentialAcceleration, 1 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-14 20:54:12,996 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] [2022-02-14 20:54:12,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 08:54:12 BasicIcfg [2022-02-14 20:54:12,999 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-14 20:54:13,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-14 20:54:13,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-14 20:54:13,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-14 20:54:13,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 08:54:11" (1/4) ... [2022-02-14 20:54:13,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb212b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 08:54:13, skipping insertion in model container [2022-02-14 20:54:13,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:54:11" (2/4) ... [2022-02-14 20:54:13,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb212b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 08:54:13, skipping insertion in model container [2022-02-14 20:54:13,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 08:54:12" (3/4) ... [2022-02-14 20:54:13,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb212b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 08:54:13, skipping insertion in model container [2022-02-14 20:54:13,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 08:54:12" (4/4) ... [2022-02-14 20:54:13,004 INFO L111 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.cJordan [2022-02-14 20:54:13,007 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-14 20:54:13,007 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-14 20:54:13,029 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-14 20:54:13,033 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-14 20:54:13,033 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-14 20:54:13,040 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) [2022-02-14 20:54:13,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-02-14 20:54:13,045 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 20:54:13,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 20:54:13,046 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 20:54:13,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 20:54:13,049 INFO L85 PathProgramCache]: Analyzing trace with hash 456799944, now seen corresponding path program 1 times [2022-02-14 20:54:13,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 20:54:13,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714469666] [2022-02-14 20:54:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 20:54:13,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 20:54:13,116 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-14 20:54:13,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1968721757] [2022-02-14 20:54:13,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 20:54:13,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 20:54:13,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 20:54:13,118 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) [2022-02-14 20:54:13,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-14 20:54:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 20:54:13,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 28 conjunts are in the unsatisfiable core [2022-02-14 20:54:13,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 20:54:13,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 20:54:13,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-14 20:54:13,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 20:54:13,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714469666] [2022-02-14 20:54:13,346 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-14 20:54:13,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968721757] [2022-02-14 20:54:13,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968721757] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 20:54:13,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 20:54:13,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-14 20:54:13,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271824478] [2022-02-14 20:54:13,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 20:54:13,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-14 20:54:13,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 20:54:13,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-14 20:54:13,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-02-14 20:54:13,374 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) [2022-02-14 20:54:13,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 20:54:13,479 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2022-02-14 20:54:13,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-14 20:54:13,480 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 [2022-02-14 20:54:13,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 20:54:13,484 INFO L225 Difference]: With dead ends: 35 [2022-02-14 20:54:13,484 INFO L226 Difference]: Without dead ends: 18 [2022-02-14 20:54:13,485 INFO L932 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 [2022-02-14 20:54:13,487 INFO L933 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 [2022-02-14 20:54:13,488 INFO L934 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] [2022-02-14 20:54:13,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-02-14 20:54:13,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-02-14 20:54:13,504 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) [2022-02-14 20:54:13,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-02-14 20:54:13,505 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2022-02-14 20:54:13,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 20:54:13,506 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-02-14 20:54:13,506 INFO L471 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) [2022-02-14 20:54:13,506 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-02-14 20:54:13,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-02-14 20:54:13,506 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 20:54:13,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 20:54:13,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-14 20:54:13,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-14 20:54:13,720 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 20:54:13,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 20:54:13,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1275865648, now seen corresponding path program 1 times [2022-02-14 20:54:13,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 20:54:13,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523856781] [2022-02-14 20:54:13,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 20:54:13,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 20:54:13,736 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-14 20:54:13,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166022493] [2022-02-14 20:54:13,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 20:54:13,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 20:54:13,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 20:54:13,742 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) [2022-02-14 20:54:13,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-14 20:54:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 20:54:14,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 30 conjunts are in the unsatisfiable core [2022-02-14 20:54:14,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 20:54:16,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 20:54:16,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-14 20:55:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 20:55:46,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 20:55:46,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523856781] [2022-02-14 20:55:46,817 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-14 20:55:46,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166022493] [2022-02-14 20:55:46,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166022493] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-14 20:55:46,817 INFO L191 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-02-14 20:55:46,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-02-14 20:55:46,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884574202] [2022-02-14 20:55:46,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-02-14 20:55:46,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-14 20:55:46,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 20:55:46,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-14 20:55:46,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=171, Unknown=36, NotChecked=0, Total=272 [2022-02-14 20:55:46,819 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) [2022-02-14 20:56:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 20:56:00,177 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-02-14 20:56:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-14 20:56:00,177 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 [2022-02-14 20:56:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 20:56:00,177 INFO L225 Difference]: With dead ends: 16 [2022-02-14 20:56:00,178 INFO L226 Difference]: Without dead ends: 0 [2022-02-14 20:56:00,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 100.1s TimeCoverageRelationStatistics Valid=113, Invalid=310, Unknown=39, NotChecked=0, Total=462 [2022-02-14 20:56:00,179 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-02-14 20:56:00,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 56 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 25 Unchecked, 1.4s Time] [2022-02-14 20:56:00,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-14 20:56:00,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-14 20:56:00,180 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) [2022-02-14 20:56:00,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-14 20:56:00,180 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-02-14 20:56:00,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 20:56:00,180 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-14 20:56:00,180 INFO L471 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) [2022-02-14 20:56:00,181 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-14 20:56:00,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-14 20:56:00,182 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-14 20:56:00,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-14 20:56:00,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-02-14 20:56:00,385 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-14 20:56:00,386 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-14 20:56:00,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 08:56:00 BasicIcfg [2022-02-14 20:56:00,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-14 20:56:00,388 INFO L158 Benchmark]: Toolchain (without parser) took 108780.28ms. Allocated memory was 197.1MB in the beginning and 291.5MB in the end (delta: 94.4MB). Free memory was 148.3MB in the beginning and 211.9MB in the end (delta: -63.6MB). Peak memory consumption was 31.7MB. Max. memory is 8.0GB. [2022-02-14 20:56:00,389 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 197.1MB. Free memory was 164.9MB in the beginning and 164.8MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-14 20:56:00,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.20ms. Allocated memory is still 197.1MB. Free memory was 148.1MB in the beginning and 174.4MB in the end (delta: -26.2MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2022-02-14 20:56:00,389 INFO L158 Benchmark]: Boogie Preprocessor took 29.31ms. Allocated memory is still 197.1MB. Free memory was 174.4MB in the beginning and 172.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-14 20:56:00,390 INFO L158 Benchmark]: RCFGBuilder took 259.15ms. Allocated memory is still 197.1MB. Free memory was 172.8MB in the beginning and 162.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-14 20:56:00,390 INFO L158 Benchmark]: IcfgTransformer took 903.20ms. Allocated memory is still 197.1MB. Free memory was 162.3MB in the beginning and 146.1MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-02-14 20:56:00,390 INFO L158 Benchmark]: TraceAbstraction took 107387.73ms. Allocated memory was 197.1MB in the beginning and 291.5MB in the end (delta: 94.4MB). Free memory was 145.5MB in the beginning and 211.9MB in the end (delta: -66.4MB). Peak memory consumption was 28.1MB. Max. memory is 8.0GB. [2022-02-14 20:56:00,392 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 0.09ms. Allocated memory is still 197.1MB. Free memory was 164.9MB in the beginning and 164.8MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 197.20ms. Allocated memory is still 197.1MB. Free memory was 148.1MB in the beginning and 174.4MB in the end (delta: -26.2MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.31ms. Allocated memory is still 197.1MB. Free memory was 174.4MB in the beginning and 172.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 259.15ms. Allocated memory is still 197.1MB. Free memory was 172.8MB in the beginning and 162.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 903.20ms. Allocated memory is still 197.1MB. Free memory was 162.3MB in the beginning and 146.1MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 107387.73ms. Allocated memory was 197.1MB in the beginning and 291.5MB in the end (delta: 94.4MB). Free memory was 145.5MB in the beginning and 211.9MB in the end (delta: -66.4MB). Peak memory consumption was 28.1MB. 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: 107.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 250 SdHoareTripleChecker+Invalid, 1.4s 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, 14 ImplicationChecksByTransitivity, 100.2s 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, 92.3s 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! [2022-02-14 20:56:00,607 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 [2022-02-14 20:56:00,643 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...