/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-acceleration/const_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 14:54:47,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 14:54:47,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 14:54:47,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 14:54:47,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 14:54:47,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 14:54:47,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 14:54:47,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 14:54:47,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 14:54:47,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 14:54:47,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 14:54:47,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 14:54:47,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 14:54:47,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 14:54:47,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 14:54:47,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 14:54:47,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 14:54:47,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 14:54:47,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 14:54:47,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 14:54:47,252 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 14:54:47,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 14:54:47,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 14:54:47,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 14:54:47,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 14:54:47,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 14:54:47,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 14:54:47,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 14:54:47,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 14:54:47,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 14:54:47,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 14:54:47,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 14:54:47,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 14:54:47,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 14:54:47,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 14:54:47,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 14:54:47,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 14:54:47,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 14:54:47,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 14:54:47,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 14:54:47,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 14:54:47,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 14:54:47,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 14:54:47,283 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 14:54:47,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 14:54:47,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 14:54:47,286 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 14:54:47,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 14:54:47,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 14:54:47,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 14:54:47,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 14:54:47,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 14:54:47,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 14:54:47,288 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 14:54:47,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 14:54:47,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 14:54:47,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 14:54:47,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 14:54:47,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 14:54:47,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 14:54:47,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 14:54:47,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 14:54:47,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 14:54:47,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 14:54:47,290 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 14:54:47,290 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 14:54:47,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 14:54:47,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 14:54:47,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 14:54:47,536 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 14:54:47,538 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 14:54:47,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/const_1-2.c [2022-03-17 14:54:47,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cce78afa0/c65b65e3a4c14d1f875ab8f76f6df8dc/FLAGff987d217 [2022-03-17 14:54:47,969 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 14:54:47,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/const_1-2.c [2022-03-17 14:54:47,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cce78afa0/c65b65e3a4c14d1f875ab8f76f6df8dc/FLAGff987d217 [2022-03-17 14:54:48,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cce78afa0/c65b65e3a4c14d1f875ab8f76f6df8dc [2022-03-17 14:54:48,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 14:54:48,410 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 14:54:48,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 14:54:48,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 14:54:48,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 14:54:48,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:54:48" (1/1) ... [2022-03-17 14:54:48,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17670e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:48, skipping insertion in model container [2022-03-17 14:54:48,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:54:48" (1/1) ... [2022-03-17 14:54:48,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 14:54:48,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 14:54:48,593 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-acceleration/const_1-2.c[321,334] [2022-03-17 14:54:48,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 14:54:48,609 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 14:54:48,618 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-acceleration/const_1-2.c[321,334] [2022-03-17 14:54:48,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 14:54:48,631 INFO L208 MainTranslator]: Completed translation [2022-03-17 14:54:48,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:48 WrapperNode [2022-03-17 14:54:48,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 14:54:48,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 14:54:48,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 14:54:48,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 14:54:48,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:48" (1/1) ... [2022-03-17 14:54:48,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:48" (1/1) ... [2022-03-17 14:54:48,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:48" (1/1) ... [2022-03-17 14:54:48,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:48" (1/1) ... [2022-03-17 14:54:48,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:48" (1/1) ... [2022-03-17 14:54:48,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:48" (1/1) ... [2022-03-17 14:54:48,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:48" (1/1) ... [2022-03-17 14:54:48,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 14:54:48,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 14:54:48,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 14:54:48,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 14:54:48,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:48" (1/1) ... [2022-03-17 14:54:48,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 14:54:48,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 14:54:48,687 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) [2022-03-17 14:54:48,689 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 [2022-03-17 14:54:48,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 14:54:48,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 14:54:48,727 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 14:54:48,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-17 14:54:48,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 14:54:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 14:54:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 14:54:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 14:54:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 14:54:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-17 14:54:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 14:54:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 14:54:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 14:54:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 14:54:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 14:54:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 14:54:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 14:54:48,778 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 14:54:48,779 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 14:54:48,849 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 14:54:48,853 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 14:54:48,854 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 14:54:48,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 02:54:48 BoogieIcfgContainer [2022-03-17 14:54:48,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 14:54:48,856 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 14:54:48,856 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 14:54:48,857 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 14:54:48,860 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 02:54:48" (1/1) ... [2022-03-17 14:54:49,070 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-17 14:54:49,071 INFO L91 elerationTransformer]: Accelerated Formula: (and (= v_main_~x~0_1 0) (= v_main_~y~0_1 (+ v_main_~y~0_2 1)) (< (mod v_main_~y~0_2 4294967296) 1024)) InVars {main_~y~0=v_main_~y~0_2} OutVars{main_~x~0=v_main_~x~0_1, main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] to Formula: (let ((.cse0 (mod v_main_~y~0_2 4294967296))) (or (and (= v_main_~x~0_1 0) (< v_main_~y~0_2 v_main_~y~0_1) (<= (div (+ (* (- 1) v_main_~y~0_1) 1024) (- 4294967296)) (+ (div (+ v_main_~y~0_2 (- 4294967295)) 4294967296) 1)) (< .cse0 1024)) (and (<= 1024 .cse0) (= v_main_~y~0_2 v_main_~y~0_1) (= |v_main_#t~post4_3| |v_main_#t~post4_1|) (= v_main_~x~0_5 v_main_~x~0_1)))) InVars {main_#t~post4=|v_main_#t~post4_3|, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_5} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] [2022-03-17 14:54:49,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 02:54:49 BasicIcfg [2022-03-17 14:54:49,077 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 14:54:49,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 14:54:49,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 14:54:49,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 14:54:49,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:54:48" (1/4) ... [2022-03-17 14:54:49,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0cb350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:54:49, skipping insertion in model container [2022-03-17 14:54:49,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:54:48" (2/4) ... [2022-03-17 14:54:49,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0cb350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:54:49, skipping insertion in model container [2022-03-17 14:54:49,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 02:54:48" (3/4) ... [2022-03-17 14:54:49,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0cb350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:54:49, skipping insertion in model container [2022-03-17 14:54:49,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 02:54:49" (4/4) ... [2022-03-17 14:54:49,084 INFO L111 eAbstractionObserver]: Analyzing ICFG const_1-2.cJordan [2022-03-17 14:54:49,088 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 14:54:49,088 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 14:54:49,128 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 14:54:49,134 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 [2022-03-17 14:54:49,134 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 14:54:49,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 14:54:49,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-17 14:54:49,156 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 14:54:49,157 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 14:54:49,157 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 14:54:49,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 14:54:49,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1690616289, now seen corresponding path program 1 times [2022-03-17 14:54:49,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 14:54:49,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14514575] [2022-03-17 14:54:49,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 14:54:49,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 14:54:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 14:54:49,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 14:54:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 14:54:49,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 14:54:49,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 14:54:49,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14514575] [2022-03-17 14:54:49,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14514575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 14:54:49,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 14:54:49,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-17 14:54:49,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87722207] [2022-03-17 14:54:49,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 14:54:49,329 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 14:54:49,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 14:54:49,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 14:54:49,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-17 14:54:49,357 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 14:54:49,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 14:54:49,386 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-03-17 14:54:49,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 14:54:49,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-17 14:54:49,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 14:54:49,394 INFO L225 Difference]: With dead ends: 18 [2022-03-17 14:54:49,395 INFO L226 Difference]: Without dead ends: 12 [2022-03-17 14:54:49,396 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-17 14:54:49,399 INFO L912 BasicCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 14:54:49,400 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 14:54:49,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-03-17 14:54:49,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-03-17 14:54:49,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 14:54:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-03-17 14:54:49,437 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2022-03-17 14:54:49,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 14:54:49,438 INFO L478 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-03-17 14:54:49,438 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 14:54:49,438 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-03-17 14:54:49,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-17 14:54:49,439 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 14:54:49,439 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 14:54:49,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 14:54:49,440 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 14:54:49,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 14:54:49,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1689692768, now seen corresponding path program 1 times [2022-03-17 14:54:49,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 14:54:49,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193206348] [2022-03-17 14:54:49,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 14:54:49,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 14:54:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 14:54:49,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 14:54:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 14:54:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 14:54:49,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 14:54:49,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193206348] [2022-03-17 14:54:49,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193206348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 14:54:49,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 14:54:49,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 14:54:49,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956344408] [2022-03-17 14:54:49,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 14:54:49,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 14:54:49,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 14:54:49,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 14:54:49,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 14:54:49,554 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 14:54:49,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 14:54:49,585 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-03-17 14:54:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 14:54:49,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-17 14:54:49,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 14:54:49,586 INFO L225 Difference]: With dead ends: 13 [2022-03-17 14:54:49,586 INFO L226 Difference]: Without dead ends: 13 [2022-03-17 14:54:49,587 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 14:54:49,588 INFO L912 BasicCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 14:54:49,589 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 18 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 14:54:49,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-03-17 14:54:49,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-03-17 14:54:49,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 14:54:49,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-03-17 14:54:49,593 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-03-17 14:54:49,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 14:54:49,593 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-03-17 14:54:49,594 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 14:54:49,594 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-03-17 14:54:49,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-17 14:54:49,594 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 14:54:49,594 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 14:54:49,595 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 14:54:49,598 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 14:54:49,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 14:54:49,607 INFO L85 PathProgramCache]: Analyzing trace with hash -814146699, now seen corresponding path program 1 times [2022-03-17 14:54:49,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 14:54:49,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912780843] [2022-03-17 14:54:49,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 14:54:49,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 14:54:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-17 14:54:49,651 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-17 14:54:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-17 14:54:49,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-17 14:54:49,711 INFO L614 BasicCegarLoop]: Counterexample is feasible [2022-03-17 14:54:49,712 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-17 14:54:49,716 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 14:54:49,719 INFO L718 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-03-17 14:54:49,722 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 14:54:49,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:54:49 BasicIcfg [2022-03-17 14:54:49,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 14:54:49,742 INFO L158 Benchmark]: Toolchain (without parser) took 1331.94ms. Allocated memory is still 200.3MB. Free memory was 148.9MB in the beginning and 126.5MB in the end (delta: 22.3MB). Peak memory consumption was 22.4MB. Max. memory is 8.0GB. [2022-03-17 14:54:49,742 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 200.3MB. Free memory was 165.7MB in the beginning and 165.6MB in the end (delta: 79.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 14:54:49,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.57ms. Allocated memory is still 200.3MB. Free memory was 148.7MB in the beginning and 177.5MB in the end (delta: -28.8MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2022-03-17 14:54:49,743 INFO L158 Benchmark]: Boogie Preprocessor took 23.52ms. Allocated memory is still 200.3MB. Free memory was 177.5MB in the beginning and 176.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-17 14:54:49,744 INFO L158 Benchmark]: RCFGBuilder took 198.89ms. Allocated memory is still 200.3MB. Free memory was 176.2MB in the beginning and 167.0MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-17 14:54:49,744 INFO L158 Benchmark]: IcfgTransformer took 220.68ms. Allocated memory is still 200.3MB. Free memory was 167.0MB in the beginning and 157.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-17 14:54:49,744 INFO L158 Benchmark]: TraceAbstraction took 663.45ms. Allocated memory is still 200.3MB. Free memory was 157.3MB in the beginning and 126.5MB in the end (delta: 30.7MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-03-17 14:54:49,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 1 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 200.3MB. Free memory was 165.7MB in the beginning and 165.6MB in the end (delta: 79.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.57ms. Allocated memory is still 200.3MB. Free memory was 148.7MB in the beginning and 177.5MB in the end (delta: -28.8MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.52ms. Allocated memory is still 200.3MB. Free memory was 177.5MB in the beginning and 176.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 198.89ms. Allocated memory is still 200.3MB. Free memory was 176.2MB in the beginning and 167.0MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 220.68ms. Allocated memory is still 200.3MB. Free memory was 167.0MB in the beginning and 157.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 663.45ms. Allocated memory is still 200.3MB. Free memory was 157.3MB in the beginning and 126.5MB in the end (delta: 30.7MB). Peak memory consumption was 30.4MB. 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 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L13] unsigned int x = 1; [L14] unsigned int y = 0; VAL [x=1, y=0] [L16] COND TRUE y < 1024 [L17] x = 0 [L18] y++ VAL [x=0, y=1024, y++=1027] [L16] COND FALSE !(y < 1024) VAL [x=0, y=1024, y++=1027] [L21] CALL __VERIFIER_assert(x == 1) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 28 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2022-03-17 14:54:49,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...