/usr/bin/java -ea -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/overflow_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 16:56:50,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 16:56:50,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 16:56:50,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-07 16:56:50,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-07 16:56:50,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-07 16:56:50,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-07 16:56:50,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-07 16:56:50,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-07 16:56:50,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-07 16:56:50,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-07 16:56:50,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-07 16:56:50,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 16:56:50,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 16:56:50,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 16:56:50,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 16:56:50,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 16:56:50,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 16:56:50,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 16:56:50,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 16:56:50,709 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 16:56:50,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 16:56:50,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 16:56:50,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 16:56:50,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 16:56:50,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-07 16:56:50,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 16:56:50,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 16:56:50,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 16:56:50,729 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-07 16:56:50,741 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 16:56:50,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 16:56:50,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 16:56:50,743 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-07 16:56:50,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 16:56:50,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-07 16:56:50,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 16:56:50,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 16:56:50,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 16:56:50,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 16:56:50,744 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-07 16:56:50,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 16:56:50,744 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 16:56:50,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 16:56:50,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 16:56:50,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 16:56:50,745 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 16:56:50,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 16:56:50,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 16:56:50,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 16:56:50,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-07 16:56:50,746 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-07 16:56:50,746 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 16:56:50,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 16:56:51,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 16:56:51,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 16:56:51,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 16:56:51,026 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 16:56:51,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/overflow_1-1.c [2022-04-07 16:56:51,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81412b1a4/52f553a456f446b79aa3b015a0a5a912/FLAG349bbcb0b [2022-04-07 16:56:51,439 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 16:56:51,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/overflow_1-1.c [2022-04-07 16:56:51,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81412b1a4/52f553a456f446b79aa3b015a0a5a912/FLAG349bbcb0b [2022-04-07 16:56:51,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81412b1a4/52f553a456f446b79aa3b015a0a5a912 [2022-04-07 16:56:51,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 16:56:51,865 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-07 16:56:51,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 16:56:51,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 16:56:51,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 16:56:51,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 04:56:51" (1/1) ... [2022-04-07 16:56:51,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc95e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 04:56:51, skipping insertion in model container [2022-04-07 16:56:51,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 04:56:51" (1/1) ... [2022-04-07 16:56:51,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 16:56:51,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 16:56:52,032 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/overflow_1-1.c[324,337] [2022-04-07 16:56:52,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 16:56:52,049 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 16:56:52,059 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/overflow_1-1.c[324,337] [2022-04-07 16:56:52,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 16:56:52,073 INFO L208 MainTranslator]: Completed translation [2022-04-07 16:56:52,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 04:56:52 WrapperNode [2022-04-07 16:56:52,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 16:56:52,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 16:56:52,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 16:56:52,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 16:56:52,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 04:56:52" (1/1) ... [2022-04-07 16:56:52,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 04:56:52" (1/1) ... [2022-04-07 16:56:52,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 04:56:52" (1/1) ... [2022-04-07 16:56:52,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 04:56:52" (1/1) ... [2022-04-07 16:56:52,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 04:56:52" (1/1) ... [2022-04-07 16:56:52,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 04:56:52" (1/1) ... [2022-04-07 16:56:52,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 04:56:52" (1/1) ... [2022-04-07 16:56:52,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 16:56:52,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 16:56:52,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 16:56:52,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 16:56:52,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 04:56:52" (1/1) ... [2022-04-07 16:56:52,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 16:56:52,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 16:56:52,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-07 16:56:52,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-07 16:56:52,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 16:56:52,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 16:56:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 16:56:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-07 16:56:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 16:56:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 16:56:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 16:56:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 16:56:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 16:56:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-07 16:56:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 16:56:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 16:56:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 16:56:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 16:56:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 16:56:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 16:56:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 16:56:52,256 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 16:56:52,257 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 16:56:52,328 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 16:56:52,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 16:56:52,334 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 16:56:52,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 04:56:52 BoogieIcfgContainer [2022-04-07 16:56:52,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 16:56:52,336 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-07 16:56:52,336 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-07 16:56:52,337 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-07 16:56:52,340 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 04:56:52" (1/1) ... [2022-04-07 16:56:52,341 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-07 16:56:52,910 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-07 16:56:52,911 INFO L91 elerationTransformer]: Accelerated Formula: (and (= v_main_~x~0_1 (+ v_main_~x~0_2 2)) (<= 10 (mod v_main_~x~0_2 4294967296))) InVars {main_~x~0=v_main_~x~0_2} OutVars{main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0] to Formula: (let ((.cse0 (mod v_main_~x~0_2 4294967296))) (or (and (= (mod (+ v_main_~x~0_2 v_main_~x~0_1) 2) 0) (forall ((v_it_1 Int)) (or (not (<= (+ v_it_1 1) (div (+ v_main_~x~0_2 (* (- 1) v_main_~x~0_1)) (- 2)))) (<= 10 (mod (+ (* v_it_1 2) v_main_~x~0_2) 4294967296)) (not (<= 1 v_it_1)))) (<= 10 .cse0) (< 0 (div (+ v_main_~x~0_2 (* (- 1) v_main_~x~0_1)) (- 2)))) (and (< .cse0 10) (= v_main_~x~0_2 v_main_~x~0_1)))) InVars {main_~x~0=v_main_~x~0_2} OutVars{main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0] [2022-04-07 16:56:52,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 04:56:52 BasicIcfg [2022-04-07 16:56:52,917 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-07 16:56:52,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 16:56:52,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 16:56:52,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 16:56:52,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 04:56:51" (1/4) ... [2022-04-07 16:56:52,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae14c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 04:56:52, skipping insertion in model container [2022-04-07 16:56:52,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 04:56:52" (2/4) ... [2022-04-07 16:56:52,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae14c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 04:56:52, skipping insertion in model container [2022-04-07 16:56:52,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 04:56:52" (3/4) ... [2022-04-07 16:56:52,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae14c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 04:56:52, skipping insertion in model container [2022-04-07 16:56:52,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 04:56:52" (4/4) ... [2022-04-07 16:56:52,924 INFO L111 eAbstractionObserver]: Analyzing ICFG overflow_1-1.cJordan [2022-04-07 16:56:52,929 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-07 16:56:52,929 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 16:56:52,975 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 16:56:52,983 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-07 16:56:52,983 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 16:56:53,004 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) [2022-04-07 16:56:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-07 16:56:53,009 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 16:56:53,010 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 16:56:53,010 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 16:56:53,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 16:56:53,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1690616289, now seen corresponding path program 1 times [2022-04-07 16:56:53,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 16:56:53,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990774089] [2022-04-07 16:56:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 16:56:53,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 16:56:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 16:56:53,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 16:56:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 16:56:53,181 INFO L290 TraceCheckUtils]: 0: Hoare triple {26#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {21#true} is VALID [2022-04-07 16:56:53,181 INFO L290 TraceCheckUtils]: 1: Hoare triple {21#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-07 16:56:53,181 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {21#true} {21#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-07 16:56:53,183 INFO L272 TraceCheckUtils]: 0: Hoare triple {21#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 16:56:53,184 INFO L290 TraceCheckUtils]: 1: Hoare triple {26#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {21#true} is VALID [2022-04-07 16:56:53,184 INFO L290 TraceCheckUtils]: 2: Hoare triple {21#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-07 16:56:53,184 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-07 16:56:53,184 INFO L272 TraceCheckUtils]: 4: Hoare triple {21#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-07 16:56:53,185 INFO L290 TraceCheckUtils]: 5: Hoare triple {21#true} [43] mainENTRY-->L15-2: Formula: (= v_main_~x~0_4 10) InVars {} OutVars{main_~x~0=v_main_~x~0_4} AuxVars[] AssignedVars[main_~x~0] {21#true} is VALID [2022-04-07 16:56:53,185 INFO L290 TraceCheckUtils]: 6: Hoare triple {21#true} [45] L15-2-->L15-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {22#false} is VALID [2022-04-07 16:56:53,186 INFO L272 TraceCheckUtils]: 7: Hoare triple {22#false} [48] L15-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= (mod v_main_~x~0_6 2) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {22#false} is VALID [2022-04-07 16:56:53,186 INFO L290 TraceCheckUtils]: 8: Hoare triple {22#false} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {22#false} is VALID [2022-04-07 16:56:53,186 INFO L290 TraceCheckUtils]: 9: Hoare triple {22#false} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {22#false} is VALID [2022-04-07 16:56:53,186 INFO L290 TraceCheckUtils]: 10: Hoare triple {22#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#false} is VALID [2022-04-07 16:56:53,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 16:56:53,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 16:56:53,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990774089] [2022-04-07 16:56:53,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990774089] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 16:56:53,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 16:56:53,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 16:56:53,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039664383] [2022-04-07 16:56:53,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 16:56:53,195 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 [2022-04-07 16:56:53,196 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 16:56:53,199 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 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) [2022-04-07 16:56:53,219 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 16:56:53,219 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 16:56:53,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 16:56:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 16:56:53,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 16:56:53,256 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) [2022-04-07 16:56:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 16:56:53,302 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-04-07 16:56:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 16:56:53,302 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 [2022-04-07 16:56:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 16:56:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-04-07 16:56:53,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2022-04-07 16:56:53,315 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-04-07 16:56:53,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2022-04-07 16:56:53,319 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 20 transitions. [2022-04-07 16:56:53,351 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 16:56:53,357 INFO L225 Difference]: With dead ends: 18 [2022-04-07 16:56:53,357 INFO L226 Difference]: Without dead ends: 12 [2022-04-07 16:56:53,368 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 16:56:53,371 INFO L913 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 [2022-04-07 16:56:53,372 INFO L914 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] [2022-04-07 16:56:53,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-04-07 16:56:53,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-04-07 16:56:53,399 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 16:56:53,399 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second 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) [2022-04-07 16:56:53,400 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second 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) [2022-04-07 16:56:53,401 INFO L87 Difference]: Start difference. First operand 12 states. Second 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) [2022-04-07 16:56:53,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 16:56:53,405 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-04-07 16:56:53,405 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-07 16:56:53,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 16:56:53,406 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 16:56:53,407 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 12 states. [2022-04-07 16:56:53,408 INFO L87 Difference]: Start difference. First 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) Second operand 12 states. [2022-04-07 16:56:53,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 16:56:53,411 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-04-07 16:56:53,411 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-07 16:56:53,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 16:56:53,412 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 16:56:53,412 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 16:56:53,412 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 16:56:53,413 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) [2022-04-07 16:56:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-04-07 16:56:53,415 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2022-04-07 16:56:53,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 16:56:53,416 INFO L478 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-04-07 16:56:53,416 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) [2022-04-07 16:56:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-07 16:56:53,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-07 16:56:53,417 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 16:56:53,418 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 16:56:53,419 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 16:56:53,422 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 16:56:53,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 16:56:53,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1689692768, now seen corresponding path program 1 times [2022-04-07 16:56:53,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 16:56:53,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351041752] [2022-04-07 16:56:53,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 16:56:53,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 16:56:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 16:56:53,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 16:56:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 16:56:53,533 INFO L290 TraceCheckUtils]: 0: Hoare triple {89#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {83#true} is VALID [2022-04-07 16:56:53,533 INFO L290 TraceCheckUtils]: 1: Hoare triple {83#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {83#true} is VALID [2022-04-07 16:56:53,533 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {83#true} {83#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {83#true} is VALID [2022-04-07 16:56:53,534 INFO L272 TraceCheckUtils]: 0: Hoare triple {83#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {89#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 16:56:53,534 INFO L290 TraceCheckUtils]: 1: Hoare triple {89#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {83#true} is VALID [2022-04-07 16:56:53,535 INFO L290 TraceCheckUtils]: 2: Hoare triple {83#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {83#true} is VALID [2022-04-07 16:56:53,535 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {83#true} {83#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {83#true} is VALID [2022-04-07 16:56:53,535 INFO L272 TraceCheckUtils]: 4: Hoare triple {83#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {83#true} is VALID [2022-04-07 16:56:53,536 INFO L290 TraceCheckUtils]: 5: Hoare triple {83#true} [43] mainENTRY-->L15-2: Formula: (= v_main_~x~0_4 10) InVars {} OutVars{main_~x~0=v_main_~x~0_4} AuxVars[] AssignedVars[main_~x~0] {88#(and (<= (div main_~x~0 4294967296) 0) (<= 10 main_~x~0))} is VALID [2022-04-07 16:56:53,536 INFO L290 TraceCheckUtils]: 6: Hoare triple {88#(and (<= (div main_~x~0 4294967296) 0) (<= 10 main_~x~0))} [46] L15-2-->L15-3: Formula: (not (<= 10 (mod v_main_~x~0_5 4294967296))) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {84#false} is VALID [2022-04-07 16:56:53,537 INFO L272 TraceCheckUtils]: 7: Hoare triple {84#false} [48] L15-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= (mod v_main_~x~0_6 2) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {84#false} is VALID [2022-04-07 16:56:53,537 INFO L290 TraceCheckUtils]: 8: Hoare triple {84#false} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {84#false} is VALID [2022-04-07 16:56:53,537 INFO L290 TraceCheckUtils]: 9: Hoare triple {84#false} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {84#false} is VALID [2022-04-07 16:56:53,537 INFO L290 TraceCheckUtils]: 10: Hoare triple {84#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {84#false} is VALID [2022-04-07 16:56:53,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 16:56:53,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 16:56:53,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351041752] [2022-04-07 16:56:53,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351041752] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 16:56:53,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 16:56:53,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 16:56:53,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478233473] [2022-04-07 16:56:53,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 16:56:53,540 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 [2022-04-07 16:56:53,540 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 16:56:53,540 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 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) [2022-04-07 16:56:53,550 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 16:56:53,550 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 16:56:53,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 16:56:53,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 16:56:53,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 16:56:53,553 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) [2022-04-07 16:56:53,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 16:56:53,600 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-07 16:56:53,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 16:56:53,601 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 [2022-04-07 16:56:53,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 16:56:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-04-07 16:56:53,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-04-07 16:56:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-04-07 16:56:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-04-07 16:56:53,604 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 14 transitions. [2022-04-07 16:56:53,622 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 16:56:53,625 INFO L225 Difference]: With dead ends: 13 [2022-04-07 16:56:53,625 INFO L226 Difference]: Without dead ends: 13 [2022-04-07 16:56:53,628 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 16:56:53,631 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 16:56:53,632 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 1 Unchecked, 0.0s Time] [2022-04-07 16:56:53,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-07 16:56:53,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-07 16:56:53,637 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 16:56:53,637 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 16:56:53,637 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 16:56:53,638 INFO L87 Difference]: Start difference. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 16:56:53,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 16:56:53,642 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-07 16:56:53,642 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 16:56:53,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 16:56:53,642 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 16:56:53,643 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 13 states. [2022-04-07 16:56:53,643 INFO L87 Difference]: Start difference. First 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) Second operand 13 states. [2022-04-07 16:56:53,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 16:56:53,645 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-07 16:56:53,645 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 16:56:53,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 16:56:53,646 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 16:56:53,646 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 16:56:53,646 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 16:56:53,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 16:56:53,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-04-07 16:56:53,648 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-04-07 16:56:53,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 16:56:53,648 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-04-07 16:56:53,648 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) [2022-04-07 16:56:53,649 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 16:56:53,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-07 16:56:53,649 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 16:56:53,650 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 16:56:53,650 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 16:56:53,650 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 16:56:53,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 16:56:53,651 INFO L85 PathProgramCache]: Analyzing trace with hash -814146699, now seen corresponding path program 1 times [2022-04-07 16:56:53,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 16:56:53,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650608110] [2022-04-07 16:56:53,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 16:56:53,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 16:56:53,684 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 2) .v_it_1.0) (* (- 1) main_~x~0_5) (* 4294967296 (div (+ (* 2 .v_it_1.0) main_~x~0_5) 4294967296)) 10) 0) [2022-04-07 16:56:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 16:56:53,752 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 2) .v_it_1.1) (* (- 1) main_~x~0_5) (* 4294967296 (div (+ (* 2 .v_it_1.1) main_~x~0_5) 4294967296)) 10) 0) [2022-04-07 16:56:53,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 16:56:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 16:56:53,848 INFO L290 TraceCheckUtils]: 0: Hoare triple {155#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {146#true} is VALID [2022-04-07 16:56:53,848 INFO L290 TraceCheckUtils]: 1: Hoare triple {146#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:53,849 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {146#true} {146#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:53,849 INFO L272 TraceCheckUtils]: 0: Hoare triple {146#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {155#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 16:56:53,850 INFO L290 TraceCheckUtils]: 1: Hoare triple {155#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {146#true} is VALID [2022-04-07 16:56:53,850 INFO L290 TraceCheckUtils]: 2: Hoare triple {146#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:53,850 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {146#true} {146#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:53,850 INFO L272 TraceCheckUtils]: 4: Hoare triple {146#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:53,851 INFO L290 TraceCheckUtils]: 5: Hoare triple {146#true} [43] mainENTRY-->L15-2: Formula: (= v_main_~x~0_4 10) InVars {} OutVars{main_~x~0=v_main_~x~0_4} AuxVars[] AssignedVars[main_~x~0] {151#(and (<= main_~x~0 10) (<= 10 main_~x~0))} is VALID [2022-04-07 16:56:53,854 INFO L290 TraceCheckUtils]: 6: Hoare triple {151#(and (<= main_~x~0 10) (<= 10 main_~x~0))} [47] L15-2-->L15-2: Formula: (let ((.cse0 (mod v_main_~x~0_2 4294967296))) (or (and (= (mod (+ v_main_~x~0_2 v_main_~x~0_1) 2) 0) (forall ((v_it_1 Int)) (or (not (<= (+ v_it_1 1) (div (+ v_main_~x~0_2 (* (- 1) v_main_~x~0_1)) (- 2)))) (<= 10 (mod (+ (* v_it_1 2) v_main_~x~0_2) 4294967296)) (not (<= 1 v_it_1)))) (<= 10 .cse0) (< 0 (div (+ v_main_~x~0_2 (* (- 1) v_main_~x~0_1)) (- 2)))) (and (< .cse0 10) (= v_main_~x~0_2 v_main_~x~0_1)))) InVars {main_~x~0=v_main_~x~0_2} OutVars{main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0] {152#(<= main_~x~0 (* (div main_~x~0 2) 2))} is VALID [2022-04-07 16:56:53,855 INFO L290 TraceCheckUtils]: 7: Hoare triple {152#(<= main_~x~0 (* (div main_~x~0 2) 2))} [46] L15-2-->L15-3: Formula: (not (<= 10 (mod v_main_~x~0_5 4294967296))) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {152#(<= main_~x~0 (* (div main_~x~0 2) 2))} is VALID [2022-04-07 16:56:53,856 INFO L272 TraceCheckUtils]: 8: Hoare triple {152#(<= main_~x~0 (* (div main_~x~0 2) 2))} [48] L15-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= (mod v_main_~x~0_6 2) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {153#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-07 16:56:53,856 INFO L290 TraceCheckUtils]: 9: Hoare triple {153#(not (= |__VERIFIER_assert_#in~cond| 0))} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {154#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 16:56:53,857 INFO L290 TraceCheckUtils]: 10: Hoare triple {154#(not (= __VERIFIER_assert_~cond 0))} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {147#false} is VALID [2022-04-07 16:56:53,857 INFO L290 TraceCheckUtils]: 11: Hoare triple {147#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {147#false} is VALID [2022-04-07 16:56:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 16:56:53,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 16:56:53,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650608110] [2022-04-07 16:56:53,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650608110] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 16:56:53,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327525174] [2022-04-07 16:56:53,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 16:56:53,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 16:56:53,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 16:56:53,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 16:56:53,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-07 16:56:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 16:56:53,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-07 16:56:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 16:56:53,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 16:56:58,755 INFO L272 TraceCheckUtils]: 0: Hoare triple {146#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:58,756 INFO L290 TraceCheckUtils]: 1: Hoare triple {146#true} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {146#true} is VALID [2022-04-07 16:56:58,756 INFO L290 TraceCheckUtils]: 2: Hoare triple {146#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:58,756 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {146#true} {146#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:58,756 INFO L272 TraceCheckUtils]: 4: Hoare triple {146#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:58,758 INFO L290 TraceCheckUtils]: 5: Hoare triple {146#true} [43] mainENTRY-->L15-2: Formula: (= v_main_~x~0_4 10) InVars {} OutVars{main_~x~0=v_main_~x~0_4} AuxVars[] AssignedVars[main_~x~0] {151#(and (<= main_~x~0 10) (<= 10 main_~x~0))} is VALID [2022-04-07 16:56:58,768 INFO L290 TraceCheckUtils]: 6: Hoare triple {151#(and (<= main_~x~0 10) (<= 10 main_~x~0))} [47] L15-2-->L15-2: Formula: (let ((.cse0 (mod v_main_~x~0_2 4294967296))) (or (and (= (mod (+ v_main_~x~0_2 v_main_~x~0_1) 2) 0) (forall ((v_it_1 Int)) (or (not (<= (+ v_it_1 1) (div (+ v_main_~x~0_2 (* (- 1) v_main_~x~0_1)) (- 2)))) (<= 10 (mod (+ (* v_it_1 2) v_main_~x~0_2) 4294967296)) (not (<= 1 v_it_1)))) (<= 10 .cse0) (< 0 (div (+ v_main_~x~0_2 (* (- 1) v_main_~x~0_1)) (- 2)))) (and (< .cse0 10) (= v_main_~x~0_2 v_main_~x~0_1)))) InVars {main_~x~0=v_main_~x~0_2} OutVars{main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0] {177#(exists ((aux_div_aux_mod_v_main_~x~0_10_31_102 Int) (aux_div_v_main_~x~0_10_31 Int) (aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45 Int)) (and (<= (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0) (+ (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10)) (<= (+ (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10) (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0)) (forall ((v_it_1 Int)) (or (not (<= (+ v_it_1 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45 1) aux_div_aux_mod_v_main_~x~0_10_31_102)) (not (<= 1 v_it_1)) (<= 10 (mod (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) (* v_it_1 2) (* 4294967294 aux_div_aux_mod_v_main_~x~0_10_31_102) main_~x~0) 4294967296)))) (< 0 aux_div_aux_mod_v_main_~x~0_10_31_102) (<= 0 (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45)) (<= (+ (* aux_div_v_main_~x~0_10_31 4294967296) (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10) (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0)) (< (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0) (+ (* aux_div_v_main_~x~0_10_31 4294967296) (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 4294967296)) (< (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) 2)))} is VALID [2022-04-07 16:56:58,771 INFO L290 TraceCheckUtils]: 7: Hoare triple {177#(exists ((aux_div_aux_mod_v_main_~x~0_10_31_102 Int) (aux_div_v_main_~x~0_10_31 Int) (aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45 Int)) (and (<= (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0) (+ (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10)) (<= (+ (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10) (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0)) (forall ((v_it_1 Int)) (or (not (<= (+ v_it_1 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45 1) aux_div_aux_mod_v_main_~x~0_10_31_102)) (not (<= 1 v_it_1)) (<= 10 (mod (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) (* v_it_1 2) (* 4294967294 aux_div_aux_mod_v_main_~x~0_10_31_102) main_~x~0) 4294967296)))) (< 0 aux_div_aux_mod_v_main_~x~0_10_31_102) (<= 0 (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45)) (<= (+ (* aux_div_v_main_~x~0_10_31 4294967296) (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10) (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0)) (< (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0) (+ (* aux_div_v_main_~x~0_10_31 4294967296) (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 4294967296)) (< (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) 2)))} [46] L15-2-->L15-3: Formula: (not (<= 10 (mod v_main_~x~0_5 4294967296))) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {177#(exists ((aux_div_aux_mod_v_main_~x~0_10_31_102 Int) (aux_div_v_main_~x~0_10_31 Int) (aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45 Int)) (and (<= (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0) (+ (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10)) (<= (+ (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10) (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0)) (forall ((v_it_1 Int)) (or (not (<= (+ v_it_1 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45 1) aux_div_aux_mod_v_main_~x~0_10_31_102)) (not (<= 1 v_it_1)) (<= 10 (mod (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) (* v_it_1 2) (* 4294967294 aux_div_aux_mod_v_main_~x~0_10_31_102) main_~x~0) 4294967296)))) (< 0 aux_div_aux_mod_v_main_~x~0_10_31_102) (<= 0 (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45)) (<= (+ (* aux_div_v_main_~x~0_10_31 4294967296) (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10) (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0)) (< (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0) (+ (* aux_div_v_main_~x~0_10_31 4294967296) (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 4294967296)) (< (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) 2)))} is VALID [2022-04-07 16:56:58,773 INFO L272 TraceCheckUtils]: 8: Hoare triple {177#(exists ((aux_div_aux_mod_v_main_~x~0_10_31_102 Int) (aux_div_v_main_~x~0_10_31 Int) (aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45 Int)) (and (<= (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0) (+ (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10)) (<= (+ (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10) (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0)) (forall ((v_it_1 Int)) (or (not (<= (+ v_it_1 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45 1) aux_div_aux_mod_v_main_~x~0_10_31_102)) (not (<= 1 v_it_1)) (<= 10 (mod (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) (* v_it_1 2) (* 4294967294 aux_div_aux_mod_v_main_~x~0_10_31_102) main_~x~0) 4294967296)))) (< 0 aux_div_aux_mod_v_main_~x~0_10_31_102) (<= 0 (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45)) (<= (+ (* aux_div_v_main_~x~0_10_31 4294967296) (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 10) (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0)) (< (+ (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) main_~x~0) (+ (* aux_div_v_main_~x~0_10_31 4294967296) (* 2 aux_div_aux_mod_v_main_~x~0_10_31_102) 4294967296)) (< (* 2 aux_div_aux_mod_aux_mod_v_main_~x~0_10_31_102_45) 2)))} [48] L15-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= (mod v_main_~x~0_6 2) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {184#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 16:56:58,773 INFO L290 TraceCheckUtils]: 9: Hoare triple {184#(<= 1 |__VERIFIER_assert_#in~cond|)} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {188#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 16:56:58,775 INFO L290 TraceCheckUtils]: 10: Hoare triple {188#(<= 1 __VERIFIER_assert_~cond)} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {147#false} is VALID [2022-04-07 16:56:58,776 INFO L290 TraceCheckUtils]: 11: Hoare triple {147#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {147#false} is VALID [2022-04-07 16:56:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 16:56:58,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 16:56:59,955 INFO L290 TraceCheckUtils]: 11: Hoare triple {147#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {147#false} is VALID [2022-04-07 16:56:59,956 INFO L290 TraceCheckUtils]: 10: Hoare triple {188#(<= 1 __VERIFIER_assert_~cond)} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {147#false} is VALID [2022-04-07 16:56:59,957 INFO L290 TraceCheckUtils]: 9: Hoare triple {184#(<= 1 |__VERIFIER_assert_#in~cond|)} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {188#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 16:56:59,958 INFO L272 TraceCheckUtils]: 8: Hoare triple {152#(<= main_~x~0 (* (div main_~x~0 2) 2))} [48] L15-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= (mod v_main_~x~0_6 2) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {184#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 16:56:59,958 INFO L290 TraceCheckUtils]: 7: Hoare triple {152#(<= main_~x~0 (* (div main_~x~0 2) 2))} [46] L15-2-->L15-3: Formula: (not (<= 10 (mod v_main_~x~0_5 4294967296))) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {152#(<= main_~x~0 (* (div main_~x~0 2) 2))} is VALID [2022-04-07 16:56:59,961 INFO L290 TraceCheckUtils]: 6: Hoare triple {152#(<= main_~x~0 (* (div main_~x~0 2) 2))} [47] L15-2-->L15-2: Formula: (let ((.cse0 (mod v_main_~x~0_2 4294967296))) (or (and (= (mod (+ v_main_~x~0_2 v_main_~x~0_1) 2) 0) (forall ((v_it_1 Int)) (or (not (<= (+ v_it_1 1) (div (+ v_main_~x~0_2 (* (- 1) v_main_~x~0_1)) (- 2)))) (<= 10 (mod (+ (* v_it_1 2) v_main_~x~0_2) 4294967296)) (not (<= 1 v_it_1)))) (<= 10 .cse0) (< 0 (div (+ v_main_~x~0_2 (* (- 1) v_main_~x~0_1)) (- 2)))) (and (< .cse0 10) (= v_main_~x~0_2 v_main_~x~0_1)))) InVars {main_~x~0=v_main_~x~0_2} OutVars{main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0] {152#(<= main_~x~0 (* (div main_~x~0 2) 2))} is VALID [2022-04-07 16:56:59,962 INFO L290 TraceCheckUtils]: 5: Hoare triple {146#true} [43] mainENTRY-->L15-2: Formula: (= v_main_~x~0_4 10) InVars {} OutVars{main_~x~0=v_main_~x~0_4} AuxVars[] AssignedVars[main_~x~0] {152#(<= main_~x~0 (* (div main_~x~0 2) 2))} is VALID [2022-04-07 16:56:59,962 INFO L272 TraceCheckUtils]: 4: Hoare triple {146#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:59,963 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {146#true} {146#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:59,963 INFO L290 TraceCheckUtils]: 2: Hoare triple {146#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:59,963 INFO L290 TraceCheckUtils]: 1: Hoare triple {146#true} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {146#true} is VALID [2022-04-07 16:56:59,963 INFO L272 TraceCheckUtils]: 0: Hoare triple {146#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {146#true} is VALID [2022-04-07 16:56:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-07 16:56:59,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327525174] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-07 16:56:59,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-07 16:56:59,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 6] total 10 [2022-04-07 16:56:59,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186026122] [2022-04-07 16:56:59,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 16:56:59,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-07 16:56:59,965 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 16:56:59,965 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 16:56:59,979 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 16:56:59,979 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 16:56:59,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 16:56:59,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 16:56:59,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-04-07 16:56:59,980 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 16:57:00,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 16:57:00,015 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-04-07 16:57:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 16:57:00,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-07 16:57:00,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 16:57:00,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 16:57:00,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2022-04-07 16:57:00,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 16:57:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2022-04-07 16:57:00,018 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 11 transitions. [2022-04-07 16:57:00,032 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 16:57:00,032 INFO L225 Difference]: With dead ends: 11 [2022-04-07 16:57:00,032 INFO L226 Difference]: Without dead ends: 0 [2022-04-07 16:57:00,032 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-04-07 16:57:00,033 INFO L913 BasicCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 16:57:00,034 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 24 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 1 Unchecked, 0.0s Time] [2022-04-07 16:57:00,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-07 16:57:00,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-07 16:57:00,035 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 16:57:00,035 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 16:57:00,035 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 16:57:00,035 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 16:57:00,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 16:57:00,035 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 16:57:00,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 16:57:00,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 16:57:00,036 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 16:57:00,036 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-04-07 16:57:00,036 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-04-07 16:57:00,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 16:57:00,036 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 16:57:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 16:57:00,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 16:57:00,036 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 16:57:00,036 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 16:57:00,036 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 16:57:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 16:57:00,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-07 16:57:00,037 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-04-07 16:57:00,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 16:57:00,037 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-07 16:57:00,037 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 16:57:00,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 16:57:00,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 16:57:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 16:57:00,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-07 16:57:00,257 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 16:57:00,259 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-07 16:57:00,260 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 16:57:00,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 04:57:00 BasicIcfg [2022-04-07 16:57:00,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 16:57:00,264 INFO L158 Benchmark]: Toolchain (without parser) took 8399.60ms. Allocated memory was 172.0MB in the beginning and 286.3MB in the end (delta: 114.3MB). Free memory was 113.3MB in the beginning and 198.8MB in the end (delta: -85.5MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. [2022-04-07 16:57:00,264 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 16:57:00,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.88ms. Allocated memory was 172.0MB in the beginning and 238.0MB in the end (delta: 66.1MB). Free memory was 113.2MB in the beginning and 209.4MB in the end (delta: -96.2MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB. [2022-04-07 16:57:00,265 INFO L158 Benchmark]: Boogie Preprocessor took 35.28ms. Allocated memory is still 238.0MB. Free memory was 208.8MB in the beginning and 207.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-07 16:57:00,265 INFO L158 Benchmark]: RCFGBuilder took 224.09ms. Allocated memory is still 238.0MB. Free memory was 207.3MB in the beginning and 197.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-07 16:57:00,266 INFO L158 Benchmark]: IcfgTransformer took 581.21ms. Allocated memory is still 238.0MB. Free memory was 197.8MB in the beginning and 176.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-04-07 16:57:00,266 INFO L158 Benchmark]: TraceAbstraction took 7344.82ms. Allocated memory was 238.0MB in the beginning and 286.3MB in the end (delta: 48.2MB). Free memory was 175.8MB in the beginning and 198.8MB in the end (delta: -23.0MB). Peak memory consumption was 26.3MB. Max. memory is 8.0GB. [2022-04-07 16:57:00,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 202.88ms. Allocated memory was 172.0MB in the beginning and 238.0MB in the end (delta: 66.1MB). Free memory was 113.2MB in the beginning and 209.4MB in the end (delta: -96.2MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.28ms. Allocated memory is still 238.0MB. Free memory was 208.8MB in the beginning and 207.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 224.09ms. Allocated memory is still 238.0MB. Free memory was 207.3MB in the beginning and 197.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 581.21ms. Allocated memory is still 238.0MB. Free memory was 197.8MB in the beginning and 176.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 7344.82ms. Allocated memory was 238.0MB in the beginning and 286.3MB in the end (delta: 48.2MB). Free memory was 175.8MB in the beginning and 198.8MB in the end (delta: -23.0MB). Peak memory consumption was 26.3MB. 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: 7]: 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 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 35 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 53 ConstructedInterpolants, 2 QuantifiedInterpolants, 319 SizeOfPredicates, 1 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 1/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-07 16:57:00,291 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 0 Received shutdown request...