/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/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 23:30:44,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 23:30:44,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 23:30:44,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-07 23:30:44,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-07 23:30:44,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-07 23:30:44,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-07 23:30:44,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-07 23:30:44,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-07 23:30:44,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-07 23:30:44,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-07 23:30:44,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-07 23:30:44,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 23:30:44,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 23:30:44,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 23:30:44,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 23:30:44,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 23:30:44,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 23:30:44,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 23:30:44,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 23:30:44,072 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 23:30:44,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 23:30:44,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 23:30:44,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 23:30:44,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 23:30:44,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-07 23:30:44,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 23:30:44,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 23:30:44,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 23:30:44,092 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-07 23:30:44,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 23:30:44,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 23:30:44,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-07 23:30:44,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-07 23:30:44,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-07 23:30:44,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-07 23:30:44,118 INFO L138 SettingsManager]: * Use SBE=true [2022-04-07 23:30:44,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 23:30:44,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 23:30:44,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 23:30:44,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 23:30:44,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 23:30:44,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 23:30:44,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 23:30:44,119 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 23:30:44,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 23:30:44,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 23:30:44,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 23:30:44,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 23:30:44,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 23:30:44,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 23:30:44,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-07 23:30:44,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-07 23:30:44,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-07 23:30:44,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-07 23:30:44,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-07 23:30:44,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-07 23:30:44,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-07 23:30:44,121 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-07 23:30:44,121 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 23:30:44,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 23:30:44,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 23:30:44,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 23:30:44,317 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 23:30:44,318 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 23:30:44,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i [2022-04-07 23:30:44,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2287e0ec/e52b698787634575a2d8e85622ff7921/FLAG123034850 [2022-04-07 23:30:44,715 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 23:30:44,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i [2022-04-07 23:30:44,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2287e0ec/e52b698787634575a2d8e85622ff7921/FLAG123034850 [2022-04-07 23:30:44,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2287e0ec/e52b698787634575a2d8e85622ff7921 [2022-04-07 23:30:44,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 23:30:44,730 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-07 23:30:44,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 23:30:44,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 23:30:44,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 23:30:44,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 11:30:44" (1/1) ... [2022-04-07 23:30:44,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d6b5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:30:44, skipping insertion in model container [2022-04-07 23:30:44,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 11:30:44" (1/1) ... [2022-04-07 23:30:44,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 23:30:44,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 23:30:44,857 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-zilu/benchmark04_conjunctive.i[873,886] [2022-04-07 23:30:44,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 23:30:44,884 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 23:30:44,892 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-zilu/benchmark04_conjunctive.i[873,886] [2022-04-07 23:30:44,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 23:30:44,903 INFO L208 MainTranslator]: Completed translation [2022-04-07 23:30:44,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:30:44 WrapperNode [2022-04-07 23:30:44,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 23:30:44,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 23:30:44,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 23:30:44,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 23:30:44,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:30:44" (1/1) ... [2022-04-07 23:30:44,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:30:44" (1/1) ... [2022-04-07 23:30:44,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:30:44" (1/1) ... [2022-04-07 23:30:44,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:30:44" (1/1) ... [2022-04-07 23:30:44,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:30:44" (1/1) ... [2022-04-07 23:30:44,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:30:44" (1/1) ... [2022-04-07 23:30:44,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:30:44" (1/1) ... [2022-04-07 23:30:44,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 23:30:44,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 23:30:44,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 23:30:44,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 23:30:44,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:30:44" (1/1) ... [2022-04-07 23:30:44,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 23:30:44,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 23:30:44,945 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 23:30:44,947 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 23:30:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 23:30:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 23:30:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 23:30:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-07 23:30:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 23:30:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 23:30:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-07 23:30:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 23:30:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 23:30:45,020 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 23:30:45,021 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 23:30:45,173 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 23:30:45,178 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 23:30:45,178 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 23:30:45,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 11:30:45 BoogieIcfgContainer [2022-04-07 23:30:45,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 23:30:45,180 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-07 23:30:45,180 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-07 23:30:45,181 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-07 23:30:45,183 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 11:30:45" (1/1) ... [2022-04-07 23:30:45,185 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-07 23:30:45,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 11:30:45 BasicIcfg [2022-04-07 23:30:45,216 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-07 23:30:45,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 23:30:45,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 23:30:45,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 23:30:45,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 11:30:44" (1/4) ... [2022-04-07 23:30:45,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0aeaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 11:30:45, skipping insertion in model container [2022-04-07 23:30:45,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:30:44" (2/4) ... [2022-04-07 23:30:45,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0aeaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 11:30:45, skipping insertion in model container [2022-04-07 23:30:45,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 11:30:45" (3/4) ... [2022-04-07 23:30:45,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0aeaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 11:30:45, skipping insertion in model container [2022-04-07 23:30:45,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 11:30:45" (4/4) ... [2022-04-07 23:30:45,221 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark04_conjunctive.iqvasr [2022-04-07 23:30:45,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-07 23:30:45,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 23:30:45,287 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 23:30:45,291 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 23:30:45,292 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 23:30:45,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 23:30:45,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-07 23:30:45,319 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 23:30:45,319 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 23:30:45,320 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 23:30:45,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 23:30:45,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1809217115, now seen corresponding path program 1 times [2022-04-07 23:30:45,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 23:30:45,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976535312] [2022-04-07 23:30:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 23:30:45,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 23:30:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:30:45,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 23:30:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:30:45,493 INFO L290 TraceCheckUtils]: 0: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {23#true} is VALID [2022-04-07 23:30:45,493 INFO L290 TraceCheckUtils]: 1: Hoare triple {23#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:30:45,493 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:30:45,496 INFO L272 TraceCheckUtils]: 0: Hoare triple {23#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 23:30:45,496 INFO L290 TraceCheckUtils]: 1: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {23#true} is VALID [2022-04-07 23:30:45,497 INFO L290 TraceCheckUtils]: 2: Hoare triple {23#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:30:45,497 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {23#true} {23#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:30:45,497 INFO L272 TraceCheckUtils]: 4: Hoare triple {23#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:30:45,498 INFO L290 TraceCheckUtils]: 5: Hoare triple {23#true} [52] mainENTRY-->L23: Formula: (and (= v_main_~n~0_3 |v_main_#t~nondet3_2|) (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~k~0_3 |v_main_#t~nondet1_2|) (= v_main_~j~0_4 |v_main_#t~nondet2_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648))) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~n~0=v_main_~n~0_3, main_~k~0=v_main_~k~0_3, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_#t~nondet1, main_~k~0, main_#t~nondet3, main_~j~0, main_#t~nondet2, main_~n~0] {23#true} is VALID [2022-04-07 23:30:45,498 INFO L290 TraceCheckUtils]: 6: Hoare triple {23#true} [55] L23-->L24-2: Formula: (and (<= 1 v_main_~n~0_5) (<= v_main_~n~0_5 v_main_~k~0_6) (= v_main_~j~0_6 0)) InVars {main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} OutVars{main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:30:45,499 INFO L290 TraceCheckUtils]: 7: Hoare triple {23#true} [57] L24-2-->L24-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-07 23:30:45,499 INFO L272 TraceCheckUtils]: 8: Hoare triple {24#false} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0] {24#false} is VALID [2022-04-07 23:30:45,499 INFO L290 TraceCheckUtils]: 9: Hoare triple {24#false} [62] __VERIFIER_assertENTRY-->L15: 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] {24#false} is VALID [2022-04-07 23:30:45,500 INFO L290 TraceCheckUtils]: 10: Hoare triple {24#false} [63] L15-->L16: 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[] {24#false} is VALID [2022-04-07 23:30:45,500 INFO L290 TraceCheckUtils]: 11: Hoare triple {24#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-07 23:30:45,500 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 23:30:45,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 23:30:45,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976535312] [2022-04-07 23:30:45,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976535312] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 23:30:45,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 23:30:45,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 23:30:45,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761277569] [2022-04-07 23:30:45,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 23:30:45,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 12 [2022-04-07 23:30:45,509 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 23:30:45,511 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 23:30:45,531 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 23:30:45,531 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 23:30:45,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 23:30:45,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 23:30:45,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 23:30:45,550 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 23:30:45,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:45,626 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-04-07 23:30:45,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 23:30:45,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 12 [2022-04-07 23:30:45,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 23:30:45,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 23:30:45,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-04-07 23:30:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 23:30:45,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-04-07 23:30:45,642 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 36 transitions. [2022-04-07 23:30:45,686 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 23:30:45,691 INFO L225 Difference]: With dead ends: 32 [2022-04-07 23:30:45,691 INFO L226 Difference]: Without dead ends: 13 [2022-04-07 23:30:45,694 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 23:30:45,698 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 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 23:30:45,700 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 23:30:45,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-07 23:30:45,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-07 23:30:45,723 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 23:30:45,724 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 23:30:45,724 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 23:30:45,725 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 23:30:45,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:45,731 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-07 23:30:45,731 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 23:30:45,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:30:45,732 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:30:45,732 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 23:30:45,732 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 23:30:45,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:45,735 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-07 23:30:45,735 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 23:30:45,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:30:45,735 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:30:45,736 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 23:30:45,736 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 23:30:45,737 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 23:30:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-04-07 23:30:45,742 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12 [2022-04-07 23:30:45,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 23:30:45,746 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-04-07 23:30:45,747 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 23:30:45,747 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 23:30:45,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-07 23:30:45,747 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 23:30:45,748 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 23:30:45,748 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 23:30:45,748 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 23:30:45,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 23:30:45,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1810140636, now seen corresponding path program 1 times [2022-04-07 23:30:45,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 23:30:45,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549544038] [2022-04-07 23:30:45,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 23:30:45,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 23:30:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:30:45,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 23:30:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:30:45,815 INFO L290 TraceCheckUtils]: 0: Hoare triple {124#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {118#true} is VALID [2022-04-07 23:30:45,816 INFO L290 TraceCheckUtils]: 1: Hoare triple {118#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#true} is VALID [2022-04-07 23:30:45,816 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {118#true} {118#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#true} is VALID [2022-04-07 23:30:45,817 INFO L272 TraceCheckUtils]: 0: Hoare triple {118#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {124#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 23:30:45,817 INFO L290 TraceCheckUtils]: 1: Hoare triple {124#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {118#true} is VALID [2022-04-07 23:30:45,817 INFO L290 TraceCheckUtils]: 2: Hoare triple {118#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#true} is VALID [2022-04-07 23:30:45,817 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {118#true} {118#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#true} is VALID [2022-04-07 23:30:45,817 INFO L272 TraceCheckUtils]: 4: Hoare triple {118#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#true} is VALID [2022-04-07 23:30:45,818 INFO L290 TraceCheckUtils]: 5: Hoare triple {118#true} [52] mainENTRY-->L23: Formula: (and (= v_main_~n~0_3 |v_main_#t~nondet3_2|) (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~k~0_3 |v_main_#t~nondet1_2|) (= v_main_~j~0_4 |v_main_#t~nondet2_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648))) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~n~0=v_main_~n~0_3, main_~k~0=v_main_~k~0_3, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_#t~nondet1, main_~k~0, main_#t~nondet3, main_~j~0, main_#t~nondet2, main_~n~0] {118#true} is VALID [2022-04-07 23:30:45,818 INFO L290 TraceCheckUtils]: 6: Hoare triple {118#true} [55] L23-->L24-2: Formula: (and (<= 1 v_main_~n~0_5) (<= v_main_~n~0_5 v_main_~k~0_6) (= v_main_~j~0_6 0)) InVars {main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} OutVars{main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} AuxVars[] AssignedVars[] {123#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-07 23:30:45,819 INFO L290 TraceCheckUtils]: 7: Hoare triple {123#(<= (+ main_~j~0 1) main_~n~0)} [58] L24-2-->L24-3: Formula: (not (<= (+ v_main_~j~0_1 1) v_main_~n~0_1)) InVars {main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} OutVars{main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {119#false} is VALID [2022-04-07 23:30:45,819 INFO L272 TraceCheckUtils]: 8: Hoare triple {119#false} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0] {119#false} is VALID [2022-04-07 23:30:45,819 INFO L290 TraceCheckUtils]: 9: Hoare triple {119#false} [62] __VERIFIER_assertENTRY-->L15: 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] {119#false} is VALID [2022-04-07 23:30:45,819 INFO L290 TraceCheckUtils]: 10: Hoare triple {119#false} [63] L15-->L16: 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[] {119#false} is VALID [2022-04-07 23:30:45,819 INFO L290 TraceCheckUtils]: 11: Hoare triple {119#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {119#false} is VALID [2022-04-07 23:30:45,820 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 23:30:45,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 23:30:45,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549544038] [2022-04-07 23:30:45,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549544038] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 23:30:45,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 23:30:45,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 23:30:45,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680985624] [2022-04-07 23:30:45,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 23:30:45,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 12 [2022-04-07 23:30:45,822 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 23:30:45,822 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 23:30:45,837 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 23:30:45,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 23:30:45,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 23:30:45,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 23:30:45,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 23:30:45,838 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 23:30:45,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:45,903 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-04-07 23:30:45,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 23:30:45,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 12 [2022-04-07 23:30:45,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 23:30:45,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 23:30:45,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-04-07 23:30:45,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 23:30:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-04-07 23:30:45,913 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 19 transitions. [2022-04-07 23:30:45,932 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 23:30:45,934 INFO L225 Difference]: With dead ends: 19 [2022-04-07 23:30:45,934 INFO L226 Difference]: Without dead ends: 14 [2022-04-07 23:30:45,938 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 23:30:45,940 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 23:30:45,942 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 19 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 23:30:45,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-04-07 23:30:45,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-04-07 23:30:45,948 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 23:30:45,949 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 23:30:45,949 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 23:30:45,949 INFO L87 Difference]: Start difference. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 23:30:45,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:45,950 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-04-07 23:30:45,950 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-07 23:30:45,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:30:45,951 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:30:45,951 INFO L74 IsIncluded]: Start isIncluded. First operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 14 states. [2022-04-07 23:30:45,952 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 14 states. [2022-04-07 23:30:45,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:45,953 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-04-07 23:30:45,953 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-07 23:30:45,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:30:45,954 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:30:45,954 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 23:30:45,954 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 23:30:45,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 23:30:45,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-04-07 23:30:45,956 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2022-04-07 23:30:45,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 23:30:45,957 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-04-07 23:30:45,957 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 23:30:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-07 23:30:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-07 23:30:45,958 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 23:30:45,958 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 23:30:45,958 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 23:30:45,958 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 23:30:45,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 23:30:45,965 INFO L85 PathProgramCache]: Analyzing trace with hash 306506437, now seen corresponding path program 1 times [2022-04-07 23:30:45,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 23:30:45,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475061611] [2022-04-07 23:30:45,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 23:30:45,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 23:30:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:30:46,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 23:30:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:30:46,081 INFO L290 TraceCheckUtils]: 0: Hoare triple {217#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {208#true} is VALID [2022-04-07 23:30:46,081 INFO L290 TraceCheckUtils]: 1: Hoare triple {208#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,081 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {208#true} {208#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,082 INFO L272 TraceCheckUtils]: 0: Hoare triple {208#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {217#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 23:30:46,082 INFO L290 TraceCheckUtils]: 1: Hoare triple {217#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {208#true} is VALID [2022-04-07 23:30:46,082 INFO L290 TraceCheckUtils]: 2: Hoare triple {208#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,082 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {208#true} {208#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,084 INFO L272 TraceCheckUtils]: 4: Hoare triple {208#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,084 INFO L290 TraceCheckUtils]: 5: Hoare triple {208#true} [52] mainENTRY-->L23: Formula: (and (= v_main_~n~0_3 |v_main_#t~nondet3_2|) (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~k~0_3 |v_main_#t~nondet1_2|) (= v_main_~j~0_4 |v_main_#t~nondet2_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648))) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~n~0=v_main_~n~0_3, main_~k~0=v_main_~k~0_3, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_#t~nondet1, main_~k~0, main_#t~nondet3, main_~j~0, main_#t~nondet2, main_~n~0] {208#true} is VALID [2022-04-07 23:30:46,085 INFO L290 TraceCheckUtils]: 6: Hoare triple {208#true} [55] L23-->L24-2: Formula: (and (<= 1 v_main_~n~0_5) (<= v_main_~n~0_5 v_main_~k~0_6) (= v_main_~j~0_6 0)) InVars {main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} OutVars{main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} AuxVars[] AssignedVars[] {213#(<= 1 main_~k~0)} is VALID [2022-04-07 23:30:46,086 INFO L290 TraceCheckUtils]: 7: Hoare triple {213#(<= 1 main_~k~0)} [59] L24-2-->L24-2: Formula: (let ((.cse0 (+ v_main_~j~0_3 1))) (and (<= .cse0 v_main_~n~0_2) (= .cse0 v_main_~j~0_2) (= v_main_~k~0_2 (+ v_main_~k~0_1 1)))) InVars {main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_#t~post5=|v_main_#t~post5_1|, main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_#t~post4, main_#t~post5] {214#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:46,087 INFO L290 TraceCheckUtils]: 8: Hoare triple {214#(<= 0 main_~k~0)} [58] L24-2-->L24-3: Formula: (not (<= (+ v_main_~j~0_1 1) v_main_~n~0_1)) InVars {main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} OutVars{main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {214#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:46,087 INFO L272 TraceCheckUtils]: 9: Hoare triple {214#(<= 0 main_~k~0)} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0] {215#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-07 23:30:46,088 INFO L290 TraceCheckUtils]: 10: Hoare triple {215#(not (= |__VERIFIER_assert_#in~cond| 0))} [62] __VERIFIER_assertENTRY-->L15: 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] {216#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 23:30:46,089 INFO L290 TraceCheckUtils]: 11: Hoare triple {216#(not (= __VERIFIER_assert_~cond 0))} [63] L15-->L16: 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[] {209#false} is VALID [2022-04-07 23:30:46,089 INFO L290 TraceCheckUtils]: 12: Hoare triple {209#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-07 23:30:46,090 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 23:30:46,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 23:30:46,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475061611] [2022-04-07 23:30:46,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475061611] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 23:30:46,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353084524] [2022-04-07 23:30:46,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 23:30:46,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 23:30:46,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 23:30:46,100 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 23:30:46,101 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 23:30:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:30:46,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-07 23:30:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:30:46,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 23:30:46,322 INFO L272 TraceCheckUtils]: 0: Hoare triple {208#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,322 INFO L290 TraceCheckUtils]: 1: Hoare triple {208#true} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {208#true} is VALID [2022-04-07 23:30:46,323 INFO L290 TraceCheckUtils]: 2: Hoare triple {208#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,323 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {208#true} {208#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,323 INFO L272 TraceCheckUtils]: 4: Hoare triple {208#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,323 INFO L290 TraceCheckUtils]: 5: Hoare triple {208#true} [52] mainENTRY-->L23: Formula: (and (= v_main_~n~0_3 |v_main_#t~nondet3_2|) (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~k~0_3 |v_main_#t~nondet1_2|) (= v_main_~j~0_4 |v_main_#t~nondet2_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648))) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~n~0=v_main_~n~0_3, main_~k~0=v_main_~k~0_3, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_#t~nondet1, main_~k~0, main_#t~nondet3, main_~j~0, main_#t~nondet2, main_~n~0] {208#true} is VALID [2022-04-07 23:30:46,324 INFO L290 TraceCheckUtils]: 6: Hoare triple {208#true} [55] L23-->L24-2: Formula: (and (<= 1 v_main_~n~0_5) (<= v_main_~n~0_5 v_main_~k~0_6) (= v_main_~j~0_6 0)) InVars {main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} OutVars{main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} AuxVars[] AssignedVars[] {213#(<= 1 main_~k~0)} is VALID [2022-04-07 23:30:46,324 INFO L290 TraceCheckUtils]: 7: Hoare triple {213#(<= 1 main_~k~0)} [59] L24-2-->L24-2: Formula: (let ((.cse0 (+ v_main_~j~0_3 1))) (and (<= .cse0 v_main_~n~0_2) (= .cse0 v_main_~j~0_2) (= v_main_~k~0_2 (+ v_main_~k~0_1 1)))) InVars {main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_#t~post5=|v_main_#t~post5_1|, main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_#t~post4, main_#t~post5] {214#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:46,325 INFO L290 TraceCheckUtils]: 8: Hoare triple {214#(<= 0 main_~k~0)} [58] L24-2-->L24-3: Formula: (not (<= (+ v_main_~j~0_1 1) v_main_~n~0_1)) InVars {main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} OutVars{main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {214#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:46,332 INFO L272 TraceCheckUtils]: 9: Hoare triple {214#(<= 0 main_~k~0)} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0] {248#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 23:30:46,332 INFO L290 TraceCheckUtils]: 10: Hoare triple {248#(<= 1 |__VERIFIER_assert_#in~cond|)} [62] __VERIFIER_assertENTRY-->L15: 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] {252#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 23:30:46,333 INFO L290 TraceCheckUtils]: 11: Hoare triple {252#(<= 1 __VERIFIER_assert_~cond)} [63] L15-->L16: 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[] {209#false} is VALID [2022-04-07 23:30:46,333 INFO L290 TraceCheckUtils]: 12: Hoare triple {209#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-07 23:30:46,333 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 23:30:46,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 23:30:46,483 INFO L290 TraceCheckUtils]: 12: Hoare triple {209#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-07 23:30:46,484 INFO L290 TraceCheckUtils]: 11: Hoare triple {252#(<= 1 __VERIFIER_assert_~cond)} [63] L15-->L16: 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[] {209#false} is VALID [2022-04-07 23:30:46,484 INFO L290 TraceCheckUtils]: 10: Hoare triple {248#(<= 1 |__VERIFIER_assert_#in~cond|)} [62] __VERIFIER_assertENTRY-->L15: 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] {252#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 23:30:46,485 INFO L272 TraceCheckUtils]: 9: Hoare triple {214#(<= 0 main_~k~0)} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0] {248#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 23:30:46,485 INFO L290 TraceCheckUtils]: 8: Hoare triple {214#(<= 0 main_~k~0)} [58] L24-2-->L24-3: Formula: (not (<= (+ v_main_~j~0_1 1) v_main_~n~0_1)) InVars {main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} OutVars{main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {214#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:46,486 INFO L290 TraceCheckUtils]: 7: Hoare triple {213#(<= 1 main_~k~0)} [59] L24-2-->L24-2: Formula: (let ((.cse0 (+ v_main_~j~0_3 1))) (and (<= .cse0 v_main_~n~0_2) (= .cse0 v_main_~j~0_2) (= v_main_~k~0_2 (+ v_main_~k~0_1 1)))) InVars {main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_#t~post5=|v_main_#t~post5_1|, main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_#t~post4, main_#t~post5] {214#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:46,487 INFO L290 TraceCheckUtils]: 6: Hoare triple {208#true} [55] L23-->L24-2: Formula: (and (<= 1 v_main_~n~0_5) (<= v_main_~n~0_5 v_main_~k~0_6) (= v_main_~j~0_6 0)) InVars {main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} OutVars{main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} AuxVars[] AssignedVars[] {213#(<= 1 main_~k~0)} is VALID [2022-04-07 23:30:46,487 INFO L290 TraceCheckUtils]: 5: Hoare triple {208#true} [52] mainENTRY-->L23: Formula: (and (= v_main_~n~0_3 |v_main_#t~nondet3_2|) (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~k~0_3 |v_main_#t~nondet1_2|) (= v_main_~j~0_4 |v_main_#t~nondet2_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648))) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~n~0=v_main_~n~0_3, main_~k~0=v_main_~k~0_3, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_#t~nondet1, main_~k~0, main_#t~nondet3, main_~j~0, main_#t~nondet2, main_~n~0] {208#true} is VALID [2022-04-07 23:30:46,487 INFO L272 TraceCheckUtils]: 4: Hoare triple {208#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,487 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {208#true} {208#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,488 INFO L290 TraceCheckUtils]: 2: Hoare triple {208#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,488 INFO L290 TraceCheckUtils]: 1: Hoare triple {208#true} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {208#true} is VALID [2022-04-07 23:30:46,488 INFO L272 TraceCheckUtils]: 0: Hoare triple {208#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-07 23:30:46,488 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 23:30:46,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353084524] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-07 23:30:46,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-07 23:30:46,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 9 [2022-04-07 23:30:46,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466829585] [2022-04-07 23:30:46,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-07 23:30:46,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-04-07 23:30:46,492 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 23:30:46,493 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:30:46,508 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 23:30:46,511 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-07 23:30:46,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 23:30:46,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-07 23:30:46,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-04-07 23:30:46,512 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:30:46,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:46,630 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-04-07 23:30:46,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-07 23:30:46,630 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-04-07 23:30:46,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 23:30:46,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:30:46,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2022-04-07 23:30:46,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:30:46,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2022-04-07 23:30:46,633 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 20 transitions. [2022-04-07 23:30:46,646 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 23:30:46,647 INFO L225 Difference]: With dead ends: 20 [2022-04-07 23:30:46,647 INFO L226 Difference]: Without dead ends: 15 [2022-04-07 23:30:46,647 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-04-07 23:30:46,648 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 23:30:46,648 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 38 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 23:30:46,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-04-07 23:30:46,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-04-07 23:30:46,652 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 23:30:46,652 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 23:30:46,652 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 23:30:46,653 INFO L87 Difference]: Start difference. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 23:30:46,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:46,653 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-07 23:30:46,653 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-07 23:30:46,654 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:30:46,654 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:30:46,654 INFO L74 IsIncluded]: Start isIncluded. First operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 15 states. [2022-04-07 23:30:46,654 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 15 states. [2022-04-07 23:30:46,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:46,655 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-07 23:30:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-07 23:30:46,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:30:46,655 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:30:46,655 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 23:30:46,655 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 23:30:46,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 23:30:46,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-04-07 23:30:46,656 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2022-04-07 23:30:46,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 23:30:46,656 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-04-07 23:30:46,656 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:30:46,656 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-07 23:30:46,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-07 23:30:46,657 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 23:30:46,657 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 23:30:46,677 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 23:30:46,871 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 23:30:46,872 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 23:30:46,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 23:30:46,872 INFO L85 PathProgramCache]: Analyzing trace with hash 938486524, now seen corresponding path program 2 times [2022-04-07 23:30:46,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 23:30:46,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419140470] [2022-04-07 23:30:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 23:30:46,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 23:30:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:30:46,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 23:30:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:30:46,962 INFO L290 TraceCheckUtils]: 0: Hoare triple {399#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {390#true} is VALID [2022-04-07 23:30:46,962 INFO L290 TraceCheckUtils]: 1: Hoare triple {390#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:46,962 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {390#true} {390#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:46,963 INFO L272 TraceCheckUtils]: 0: Hoare triple {390#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {399#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 23:30:46,963 INFO L290 TraceCheckUtils]: 1: Hoare triple {399#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {390#true} is VALID [2022-04-07 23:30:46,963 INFO L290 TraceCheckUtils]: 2: Hoare triple {390#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:46,964 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {390#true} {390#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:46,964 INFO L272 TraceCheckUtils]: 4: Hoare triple {390#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:46,964 INFO L290 TraceCheckUtils]: 5: Hoare triple {390#true} [52] mainENTRY-->L23: Formula: (and (= v_main_~n~0_3 |v_main_#t~nondet3_2|) (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~k~0_3 |v_main_#t~nondet1_2|) (= v_main_~j~0_4 |v_main_#t~nondet2_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648))) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~n~0=v_main_~n~0_3, main_~k~0=v_main_~k~0_3, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_#t~nondet1, main_~k~0, main_#t~nondet3, main_~j~0, main_#t~nondet2, main_~n~0] {390#true} is VALID [2022-04-07 23:30:46,964 INFO L290 TraceCheckUtils]: 6: Hoare triple {390#true} [55] L23-->L24-2: Formula: (and (<= 1 v_main_~n~0_5) (<= v_main_~n~0_5 v_main_~k~0_6) (= v_main_~j~0_6 0)) InVars {main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} OutVars{main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} AuxVars[] AssignedVars[] {395#(<= main_~n~0 (+ main_~k~0 main_~j~0))} is VALID [2022-04-07 23:30:46,965 INFO L290 TraceCheckUtils]: 7: Hoare triple {395#(<= main_~n~0 (+ main_~k~0 main_~j~0))} [59] L24-2-->L24-2: Formula: (let ((.cse0 (+ v_main_~j~0_3 1))) (and (<= .cse0 v_main_~n~0_2) (= .cse0 v_main_~j~0_2) (= v_main_~k~0_2 (+ v_main_~k~0_1 1)))) InVars {main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_#t~post5=|v_main_#t~post5_1|, main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_#t~post4, main_#t~post5] {395#(<= main_~n~0 (+ main_~k~0 main_~j~0))} is VALID [2022-04-07 23:30:46,966 INFO L290 TraceCheckUtils]: 8: Hoare triple {395#(<= main_~n~0 (+ main_~k~0 main_~j~0))} [59] L24-2-->L24-2: Formula: (let ((.cse0 (+ v_main_~j~0_3 1))) (and (<= .cse0 v_main_~n~0_2) (= .cse0 v_main_~j~0_2) (= v_main_~k~0_2 (+ v_main_~k~0_1 1)))) InVars {main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_#t~post5=|v_main_#t~post5_1|, main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_#t~post4, main_#t~post5] {396#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:46,966 INFO L290 TraceCheckUtils]: 9: Hoare triple {396#(<= 0 main_~k~0)} [58] L24-2-->L24-3: Formula: (not (<= (+ v_main_~j~0_1 1) v_main_~n~0_1)) InVars {main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} OutVars{main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {396#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:46,967 INFO L272 TraceCheckUtils]: 10: Hoare triple {396#(<= 0 main_~k~0)} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0] {397#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-07 23:30:46,967 INFO L290 TraceCheckUtils]: 11: Hoare triple {397#(not (= |__VERIFIER_assert_#in~cond| 0))} [62] __VERIFIER_assertENTRY-->L15: 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] {398#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 23:30:46,967 INFO L290 TraceCheckUtils]: 12: Hoare triple {398#(not (= __VERIFIER_assert_~cond 0))} [63] L15-->L16: 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[] {391#false} is VALID [2022-04-07 23:30:46,968 INFO L290 TraceCheckUtils]: 13: Hoare triple {391#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {391#false} is VALID [2022-04-07 23:30:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-07 23:30:46,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 23:30:46,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419140470] [2022-04-07 23:30:46,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419140470] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 23:30:46,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020703181] [2022-04-07 23:30:46,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-07 23:30:46,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 23:30:46,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 23:30:46,969 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 23:30:46,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-07 23:30:47,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-07 23:30:47,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-07 23:30:47,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2022-04-07 23:30:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:30:47,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 23:30:47,205 INFO L272 TraceCheckUtils]: 0: Hoare triple {390#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:47,206 INFO L290 TraceCheckUtils]: 1: Hoare triple {390#true} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {390#true} is VALID [2022-04-07 23:30:47,206 INFO L290 TraceCheckUtils]: 2: Hoare triple {390#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:47,206 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {390#true} {390#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:47,206 INFO L272 TraceCheckUtils]: 4: Hoare triple {390#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:47,206 INFO L290 TraceCheckUtils]: 5: Hoare triple {390#true} [52] mainENTRY-->L23: Formula: (and (= v_main_~n~0_3 |v_main_#t~nondet3_2|) (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~k~0_3 |v_main_#t~nondet1_2|) (= v_main_~j~0_4 |v_main_#t~nondet2_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648))) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~n~0=v_main_~n~0_3, main_~k~0=v_main_~k~0_3, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_#t~nondet1, main_~k~0, main_#t~nondet3, main_~j~0, main_#t~nondet2, main_~n~0] {390#true} is VALID [2022-04-07 23:30:47,207 INFO L290 TraceCheckUtils]: 6: Hoare triple {390#true} [55] L23-->L24-2: Formula: (and (<= 1 v_main_~n~0_5) (<= v_main_~n~0_5 v_main_~k~0_6) (= v_main_~j~0_6 0)) InVars {main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} OutVars{main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} AuxVars[] AssignedVars[] {421#(and (<= 0 main_~j~0) (<= main_~n~0 main_~k~0))} is VALID [2022-04-07 23:30:47,208 INFO L290 TraceCheckUtils]: 7: Hoare triple {421#(and (<= 0 main_~j~0) (<= main_~n~0 main_~k~0))} [59] L24-2-->L24-2: Formula: (let ((.cse0 (+ v_main_~j~0_3 1))) (and (<= .cse0 v_main_~n~0_2) (= .cse0 v_main_~j~0_2) (= v_main_~k~0_2 (+ v_main_~k~0_1 1)))) InVars {main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_#t~post5=|v_main_#t~post5_1|, main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_#t~post4, main_#t~post5] {425#(and (<= 1 main_~j~0) (<= main_~n~0 (+ main_~k~0 1)))} is VALID [2022-04-07 23:30:47,208 INFO L290 TraceCheckUtils]: 8: Hoare triple {425#(and (<= 1 main_~j~0) (<= main_~n~0 (+ main_~k~0 1)))} [59] L24-2-->L24-2: Formula: (let ((.cse0 (+ v_main_~j~0_3 1))) (and (<= .cse0 v_main_~n~0_2) (= .cse0 v_main_~j~0_2) (= v_main_~k~0_2 (+ v_main_~k~0_1 1)))) InVars {main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_#t~post5=|v_main_#t~post5_1|, main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_#t~post4, main_#t~post5] {396#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:47,208 INFO L290 TraceCheckUtils]: 9: Hoare triple {396#(<= 0 main_~k~0)} [58] L24-2-->L24-3: Formula: (not (<= (+ v_main_~j~0_1 1) v_main_~n~0_1)) InVars {main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} OutVars{main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {396#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:47,209 INFO L272 TraceCheckUtils]: 10: Hoare triple {396#(<= 0 main_~k~0)} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0] {435#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 23:30:47,209 INFO L290 TraceCheckUtils]: 11: Hoare triple {435#(<= 1 |__VERIFIER_assert_#in~cond|)} [62] __VERIFIER_assertENTRY-->L15: 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] {439#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 23:30:47,210 INFO L290 TraceCheckUtils]: 12: Hoare triple {439#(<= 1 __VERIFIER_assert_~cond)} [63] L15-->L16: 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[] {391#false} is VALID [2022-04-07 23:30:47,210 INFO L290 TraceCheckUtils]: 13: Hoare triple {391#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {391#false} is VALID [2022-04-07 23:30:47,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 23:30:47,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 23:30:47,363 INFO L290 TraceCheckUtils]: 13: Hoare triple {391#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {391#false} is VALID [2022-04-07 23:30:47,365 INFO L290 TraceCheckUtils]: 12: Hoare triple {439#(<= 1 __VERIFIER_assert_~cond)} [63] L15-->L16: 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[] {391#false} is VALID [2022-04-07 23:30:47,366 INFO L290 TraceCheckUtils]: 11: Hoare triple {435#(<= 1 |__VERIFIER_assert_#in~cond|)} [62] __VERIFIER_assertENTRY-->L15: 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] {439#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 23:30:47,366 INFO L272 TraceCheckUtils]: 10: Hoare triple {396#(<= 0 main_~k~0)} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0] {435#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 23:30:47,367 INFO L290 TraceCheckUtils]: 9: Hoare triple {396#(<= 0 main_~k~0)} [58] L24-2-->L24-3: Formula: (not (<= (+ v_main_~j~0_1 1) v_main_~n~0_1)) InVars {main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} OutVars{main_~j~0=v_main_~j~0_1, main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {396#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:47,367 INFO L290 TraceCheckUtils]: 8: Hoare triple {461#(or (<= 1 main_~k~0) (not (<= (+ main_~j~0 1) main_~n~0)))} [59] L24-2-->L24-2: Formula: (let ((.cse0 (+ v_main_~j~0_3 1))) (and (<= .cse0 v_main_~n~0_2) (= .cse0 v_main_~j~0_2) (= v_main_~k~0_2 (+ v_main_~k~0_1 1)))) InVars {main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_#t~post5=|v_main_#t~post5_1|, main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_#t~post4, main_#t~post5] {396#(<= 0 main_~k~0)} is VALID [2022-04-07 23:30:47,368 INFO L290 TraceCheckUtils]: 7: Hoare triple {465#(or (<= 2 main_~k~0) (< main_~n~0 (+ main_~j~0 2)))} [59] L24-2-->L24-2: Formula: (let ((.cse0 (+ v_main_~j~0_3 1))) (and (<= .cse0 v_main_~n~0_2) (= .cse0 v_main_~j~0_2) (= v_main_~k~0_2 (+ v_main_~k~0_1 1)))) InVars {main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_#t~post5=|v_main_#t~post5_1|, main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~0_2} AuxVars[] AssignedVars[main_~k~0, main_~j~0, main_#t~post4, main_#t~post5] {461#(or (<= 1 main_~k~0) (not (<= (+ main_~j~0 1) main_~n~0)))} is VALID [2022-04-07 23:30:47,368 INFO L290 TraceCheckUtils]: 6: Hoare triple {390#true} [55] L23-->L24-2: Formula: (and (<= 1 v_main_~n~0_5) (<= v_main_~n~0_5 v_main_~k~0_6) (= v_main_~j~0_6 0)) InVars {main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} OutVars{main_~n~0=v_main_~n~0_5, main_~k~0=v_main_~k~0_6, main_~j~0=v_main_~j~0_6} AuxVars[] AssignedVars[] {465#(or (<= 2 main_~k~0) (< main_~n~0 (+ main_~j~0 2)))} is VALID [2022-04-07 23:30:47,368 INFO L290 TraceCheckUtils]: 5: Hoare triple {390#true} [52] mainENTRY-->L23: Formula: (and (= v_main_~n~0_3 |v_main_#t~nondet3_2|) (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~k~0_3 |v_main_#t~nondet1_2|) (= v_main_~j~0_4 |v_main_#t~nondet2_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648))) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~n~0=v_main_~n~0_3, main_~k~0=v_main_~k~0_3, main_~j~0=v_main_~j~0_4} AuxVars[] AssignedVars[main_#t~nondet1, main_~k~0, main_#t~nondet3, main_~j~0, main_#t~nondet2, main_~n~0] {390#true} is VALID [2022-04-07 23:30:47,369 INFO L272 TraceCheckUtils]: 4: Hoare triple {390#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:47,369 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {390#true} {390#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:47,369 INFO L290 TraceCheckUtils]: 2: Hoare triple {390#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:47,369 INFO L290 TraceCheckUtils]: 1: Hoare triple {390#true} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (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] {390#true} is VALID [2022-04-07 23:30:47,369 INFO L272 TraceCheckUtils]: 0: Hoare triple {390#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {390#true} is VALID [2022-04-07 23:30:47,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 23:30:47,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020703181] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-07 23:30:47,370 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-07 23:30:47,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-04-07 23:30:47,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392192189] [2022-04-07 23:30:47,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-07 23:30:47,370 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-07 23:30:47,371 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 23:30:47,371 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:30:47,385 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 23:30:47,386 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-07 23:30:47,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 23:30:47,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-07 23:30:47,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-04-07 23:30:47,387 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:30:47,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:47,547 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-07 23:30:47,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-07 23:30:47,547 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-07 23:30:47,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 23:30:47,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:30:47,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2022-04-07 23:30:47,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:30:47,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2022-04-07 23:30:47,549 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 15 transitions. [2022-04-07 23:30:47,562 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 23:30:47,562 INFO L225 Difference]: With dead ends: 15 [2022-04-07 23:30:47,562 INFO L226 Difference]: Without dead ends: 0 [2022-04-07 23:30:47,562 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-04-07 23:30:47,563 INFO L913 BasicCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 23:30:47,563 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 45 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 23:30:47,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-07 23:30:47,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-07 23:30:47,564 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 23:30:47,564 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 23:30:47,564 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 23:30:47,564 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 23:30:47,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:47,564 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 23:30:47,564 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 23:30:47,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:30:47,564 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:30:47,564 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 23:30:47,565 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 23:30:47,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:30:47,565 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 23:30:47,565 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 23:30:47,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:30:47,565 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:30:47,565 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 23:30:47,565 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 23:30:47,565 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 23:30:47,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-07 23:30:47,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-04-07 23:30:47,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 23:30:47,565 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-07 23:30:47,566 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:30:47,566 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 23:30:47,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:30:47,567 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 23:30:47,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-07 23:30:47,779 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-04-07 23:30:47,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-07 23:30:47,823 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-07 23:30:47,824 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-07 23:30:47,824 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-07 23:30:47,824 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-07 23:30:47,824 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-07 23:30:47,824 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-07 23:30:47,824 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-07 23:30:47,824 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 19 30) the Hoare annotation is: true [2022-04-07 23:30:47,824 INFO L882 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-04-07 23:30:47,824 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 19 30) no Hoare annotation was computed. [2022-04-07 23:30:47,824 INFO L878 garLoopResultBuilder]: At program point L24-2(lines 24 27) the Hoare annotation is: (and (<= main_~n~0 (+ main_~k~0 main_~j~0)) (<= 0 main_~k~0)) [2022-04-07 23:30:47,824 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 19 30) no Hoare annotation was computed. [2022-04-07 23:30:47,824 INFO L878 garLoopResultBuilder]: At program point L24-3(lines 24 27) the Hoare annotation is: (<= 0 main_~k~0) [2022-04-07 23:30:47,824 INFO L882 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-04-07 23:30:47,824 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 18) the Hoare annotation is: true [2022-04-07 23:30:47,824 INFO L882 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-04-07 23:30:47,825 INFO L882 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-04-07 23:30:47,825 INFO L882 garLoopResultBuilder]: For program point L15-2(lines 14 18) no Hoare annotation was computed. [2022-04-07 23:30:47,825 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2022-04-07 23:30:47,825 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 18) no Hoare annotation was computed. [2022-04-07 23:30:47,827 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-04-07 23:30:47,828 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 23:30:47,835 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-07 23:30:47,835 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-07 23:30:47,835 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-07 23:30:47,835 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-07 23:30:47,836 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-07 23:30:47,836 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-07 23:30:47,836 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-07 23:30:47,836 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-07 23:30:47,836 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-07 23:30:47,836 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-07 23:30:47,838 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-07 23:30:47,838 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-07 23:30:47,838 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2022-04-07 23:30:47,838 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-07 23:30:47,838 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-07 23:30:47,839 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-07 23:30:47,839 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-04-07 23:30:47,839 INFO L163 areAnnotationChecker]: CFG has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-07 23:30:47,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 11:30:47 BasicIcfg [2022-04-07 23:30:47,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 23:30:47,846 INFO L158 Benchmark]: Toolchain (without parser) took 3116.09ms. Allocated memory was 208.7MB in the beginning and 250.6MB in the end (delta: 41.9MB). Free memory was 156.3MB in the beginning and 114.8MB in the end (delta: 41.5MB). Peak memory consumption was 84.4MB. Max. memory is 8.0GB. [2022-04-07 23:30:47,847 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 208.7MB. Free memory was 172.5MB in the beginning and 172.4MB in the end (delta: 150.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 23:30:47,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.08ms. Allocated memory is still 208.7MB. Free memory was 156.0MB in the beginning and 184.5MB in the end (delta: -28.4MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. [2022-04-07 23:30:47,847 INFO L158 Benchmark]: Boogie Preprocessor took 18.85ms. Allocated memory is still 208.7MB. Free memory was 184.5MB in the beginning and 182.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-07 23:30:47,847 INFO L158 Benchmark]: RCFGBuilder took 256.51ms. Allocated memory is still 208.7MB. Free memory was 182.8MB in the beginning and 171.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-07 23:30:47,847 INFO L158 Benchmark]: IcfgTransformer took 35.65ms. Allocated memory is still 208.7MB. Free memory was 171.7MB in the beginning and 170.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-07 23:30:47,848 INFO L158 Benchmark]: TraceAbstraction took 2628.67ms. Allocated memory was 208.7MB in the beginning and 250.6MB in the end (delta: 41.9MB). Free memory was 169.6MB in the beginning and 114.8MB in the end (delta: 54.9MB). Peak memory consumption was 97.8MB. Max. memory is 8.0GB. [2022-04-07 23:30:47,849 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 208.7MB. Free memory was 172.5MB in the beginning and 172.4MB in the end (delta: 150.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 172.08ms. Allocated memory is still 208.7MB. Free memory was 156.0MB in the beginning and 184.5MB in the end (delta: -28.4MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.85ms. Allocated memory is still 208.7MB. Free memory was 184.5MB in the beginning and 182.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 256.51ms. Allocated memory is still 208.7MB. Free memory was 182.8MB in the beginning and 171.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 35.65ms. Allocated memory is still 208.7MB. Free memory was 171.7MB in the beginning and 170.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 2628.67ms. Allocated memory was 208.7MB in the beginning and 250.6MB in the end (delta: 41.9MB). Free memory was 169.6MB in the beginning and 114.8MB in the end (delta: 54.9MB). Peak memory consumption was 97.8MB. 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: 16]: 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, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 125 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 51 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 23 HoareAnnotationTreeSize, 10 FomulaSimplifications, 3 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 38 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 SizeOfPredicates, 9 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 1/12 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 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: n <= k + j && 0 <= k RESULT: Ultimate proved your program to be correct! [2022-04-07 23:30:47,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...