/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loops/n.c11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-14 18:56:24,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-14 18:56:24,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-14 18:56:24,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-14 18:56:24,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-14 18:56:24,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-14 18:56:24,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-14 18:56:24,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-14 18:56:24,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-14 18:56:24,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-14 18:56:24,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-14 18:56:24,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-14 18:56:24,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-14 18:56:24,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-14 18:56:24,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-14 18:56:24,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-14 18:56:24,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-14 18:56:24,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-14 18:56:24,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-14 18:56:24,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-14 18:56:24,371 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-14 18:56:24,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-14 18:56:24,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-14 18:56:24,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-14 18:56:24,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-14 18:56:24,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-14 18:56:24,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-14 18:56:24,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-14 18:56:24,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-14 18:56:24,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-14 18:56:24,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-14 18:56:24,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-14 18:56:24,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-14 18:56:24,396 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-14 18:56:24,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-14 18:56:24,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-14 18:56:24,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-14 18:56:24,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-14 18:56:24,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-14 18:56:24,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-14 18:56:24,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-14 18:56:24,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-14 18:56:24,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-14 18:56:24,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-14 18:56:24,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-14 18:56:24,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-14 18:56:24,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-14 18:56:24,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-14 18:56:24,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 18:56:24,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-14 18:56:24,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-14 18:56:24,399 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-14 18:56:24,399 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-14 18:56:24,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-14 18:56:24,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-14 18:56:24,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-14 18:56:24,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-14 18:56:24,608 INFO L275 PluginConnector]: CDTParser initialized [2022-04-14 18:56:24,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c11.c [2022-04-14 18:56:24,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5be2967e8/a67573eee9cf405bb28d520b91cfece7/FLAGf70d5a7b3 [2022-04-14 18:56:25,006 INFO L306 CDTParser]: Found 1 translation units. [2022-04-14 18:56:25,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c11.c [2022-04-14 18:56:25,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5be2967e8/a67573eee9cf405bb28d520b91cfece7/FLAGf70d5a7b3 [2022-04-14 18:56:25,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5be2967e8/a67573eee9cf405bb28d520b91cfece7 [2022-04-14 18:56:25,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-14 18:56:25,021 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-14 18:56:25,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-14 18:56:25,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-14 18:56:25,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-14 18:56:25,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 06:56:25" (1/1) ... [2022-04-14 18:56:25,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533b7fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:56:25, skipping insertion in model container [2022-04-14 18:56:25,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 06:56:25" (1/1) ... [2022-04-14 18:56:25,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-14 18:56:25,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-14 18:56:25,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c11.c[317,330] [2022-04-14 18:56:25,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 18:56:25,182 INFO L203 MainTranslator]: Completed pre-run [2022-04-14 18:56:25,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c11.c[317,330] [2022-04-14 18:56:25,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 18:56:25,200 INFO L208 MainTranslator]: Completed translation [2022-04-14 18:56:25,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:56:25 WrapperNode [2022-04-14 18:56:25,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-14 18:56:25,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-14 18:56:25,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-14 18:56:25,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-14 18:56:25,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:56:25" (1/1) ... [2022-04-14 18:56:25,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:56:25" (1/1) ... [2022-04-14 18:56:25,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:56:25" (1/1) ... [2022-04-14 18:56:25,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:56:25" (1/1) ... [2022-04-14 18:56:25,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:56:25" (1/1) ... [2022-04-14 18:56:25,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:56:25" (1/1) ... [2022-04-14 18:56:25,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:56:25" (1/1) ... [2022-04-14 18:56:25,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-14 18:56:25,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-14 18:56:25,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-14 18:56:25,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-14 18:56:25,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:56:25" (1/1) ... [2022-04-14 18:56:25,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 18:56:25,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 18:56:25,239 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) [2022-04-14 18:56:25,243 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 [2022-04-14 18:56:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-14 18:56:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-14 18:56:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-14 18:56:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-14 18:56:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-14 18:56:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-14 18:56:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-14 18:56:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-14 18:56:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-14 18:56:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-14 18:56:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-14 18:56:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-14 18:56:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-14 18:56:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-14 18:56:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-14 18:56:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-14 18:56:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-14 18:56:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-14 18:56:25,304 INFO L234 CfgBuilder]: Building ICFG [2022-04-14 18:56:25,305 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-14 18:56:25,392 INFO L275 CfgBuilder]: Performing block encoding [2022-04-14 18:56:25,396 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-14 18:56:25,397 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-14 18:56:25,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 06:56:25 BoogieIcfgContainer [2022-04-14 18:56:25,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-14 18:56:25,398 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-14 18:56:25,398 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-14 18:56:25,399 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-14 18:56:25,401 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 06:56:25" (1/1) ... [2022-04-14 18:56:25,403 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-14 18:56:25,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 06:56:25 BasicIcfg [2022-04-14 18:56:25,419 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-14 18:56:25,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-14 18:56:25,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-14 18:56:25,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-14 18:56:25,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 06:56:25" (1/4) ... [2022-04-14 18:56:25,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286b09fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 06:56:25, skipping insertion in model container [2022-04-14 18:56:25,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:56:25" (2/4) ... [2022-04-14 18:56:25,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286b09fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 06:56:25, skipping insertion in model container [2022-04-14 18:56:25,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 06:56:25" (3/4) ... [2022-04-14 18:56:25,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286b09fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 06:56:25, skipping insertion in model container [2022-04-14 18:56:25,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 06:56:25" (4/4) ... [2022-04-14 18:56:25,436 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c11.cJordan [2022-04-14 18:56:25,439 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-14 18:56:25,439 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-14 18:56:25,465 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-14 18:56:25,470 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-14 18:56:25,470 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-14 18:56:25,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 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) [2022-04-14 18:56:25,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-14 18:56:25,485 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 18:56:25,485 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 18:56:25,486 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 18:56:25,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 18:56:25,528 INFO L85 PathProgramCache]: Analyzing trace with hash 447419557, now seen corresponding path program 1 times [2022-04-14 18:56:25,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 18:56:25,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481231770] [2022-04-14 18:56:25,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:56:25,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 18:56:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:56:25,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 18:56:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:56:25,719 INFO L290 TraceCheckUtils]: 0: Hoare triple {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [49] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#length_1| 2) 8) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {24#true} is VALID [2022-04-14 18:56:25,719 INFO L290 TraceCheckUtils]: 1: Hoare triple {24#true} [52] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-14 18:56:25,719 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {24#true} {24#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-14 18:56:25,724 INFO L272 TraceCheckUtils]: 0: Hoare triple {24#true} [47] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 18:56:25,726 INFO L290 TraceCheckUtils]: 1: Hoare triple {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [49] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#length_1| 2) 8) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {24#true} is VALID [2022-04-14 18:56:25,726 INFO L290 TraceCheckUtils]: 2: Hoare triple {24#true} [52] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-14 18:56:25,726 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {24#true} {24#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-14 18:56:25,726 INFO L272 TraceCheckUtils]: 4: Hoare triple {24#true} [48] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-14 18:56:25,727 INFO L290 TraceCheckUtils]: 5: Hoare triple {24#true} [51] mainENTRY-->L21-2: Formula: (= v_main_~len~0_2 0) InVars {} OutVars{main_~i~0=v_main_~i~0_1, main_~len~0=v_main_~len~0_2, main_~a~0=v_main_~a~0_1} AuxVars[] AssignedVars[main_~len~0, main_~i~0, main_~a~0] {24#true} is VALID [2022-04-14 18:56:25,727 INFO L290 TraceCheckUtils]: 6: Hoare triple {24#true} [53] L21-2-->L21-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {25#false} is VALID [2022-04-14 18:56:25,728 INFO L272 TraceCheckUtils]: 7: Hoare triple {25#false} [56] L21-3-->__VERIFIER_assertENTRY: Formula: (= (ite (< (mod v_main_~len~0_8 4294967296) 5) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~len~0=v_main_~len~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~len~0] {25#false} is VALID [2022-04-14 18:56:25,728 INFO L290 TraceCheckUtils]: 8: Hoare triple {25#false} [60] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_3 |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_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {25#false} is VALID [2022-04-14 18:56:25,729 INFO L290 TraceCheckUtils]: 9: Hoare triple {25#false} [63] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {25#false} is VALID [2022-04-14 18:56:25,729 INFO L290 TraceCheckUtils]: 10: Hoare triple {25#false} [65] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#false} is VALID [2022-04-14 18:56:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:56:25,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 18:56:25,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481231770] [2022-04-14 18:56:25,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481231770] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 18:56:25,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 18:56:25,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-14 18:56:25,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978863935] [2022-04-14 18:56:25,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 18:56:25,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-14 18:56:25,742 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 18:56:25,745 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:25,768 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:56:25,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-14 18:56:25,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 18:56:25,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-14 18:56:25,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-14 18:56:25,797 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:25,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:56:25,873 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-04-14 18:56:25,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-14 18:56:25,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-14 18:56:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 18:56:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:25,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2022-04-14 18:56:25,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2022-04-14 18:56:25,891 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 24 transitions. [2022-04-14 18:56:25,922 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:56:25,928 INFO L225 Difference]: With dead ends: 21 [2022-04-14 18:56:25,928 INFO L226 Difference]: Without dead ends: 14 [2022-04-14 18:56:25,930 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 [2022-04-14 18:56:25,933 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 24 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 [2022-04-14 18:56:25,933 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 24 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 18:56:25,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-04-14 18:56:25,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-04-14 18:56:25,951 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 18:56:25,952 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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) [2022-04-14 18:56:25,953 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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) [2022-04-14 18:56:25,953 INFO L87 Difference]: Start difference. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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) [2022-04-14 18:56:25,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:56:25,956 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-04-14 18:56:25,956 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-14 18:56:25,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:56:25,957 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:56:25,957 INFO L74 IsIncluded]: Start isIncluded. First operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 14 states. [2022-04-14 18:56:25,957 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 14 states. [2022-04-14 18:56:25,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:56:25,960 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-04-14 18:56:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-14 18:56:25,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:56:25,961 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:56:25,961 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 18:56:25,961 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 18:56:25,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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) [2022-04-14 18:56:25,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-04-14 18:56:25,964 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-04-14 18:56:25,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 18:56:25,964 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-04-14 18:56:25,965 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:25,965 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-14 18:56:25,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-14 18:56:25,966 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 18:56:25,966 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 18:56:25,967 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-14 18:56:25,967 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 18:56:25,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 18:56:25,972 INFO L85 PathProgramCache]: Analyzing trace with hash 448343078, now seen corresponding path program 1 times [2022-04-14 18:56:25,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 18:56:25,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056211728] [2022-04-14 18:56:25,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:56:25,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 18:56:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:56:26,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 18:56:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:56:26,096 INFO L290 TraceCheckUtils]: 0: Hoare triple {103#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [49] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#length_1| 2) 8) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {95#true} is VALID [2022-04-14 18:56:26,097 INFO L290 TraceCheckUtils]: 1: Hoare triple {95#true} [52] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {95#true} is VALID [2022-04-14 18:56:26,097 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {95#true} {95#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {95#true} is VALID [2022-04-14 18:56:26,098 INFO L272 TraceCheckUtils]: 0: Hoare triple {95#true} [47] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {103#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 18:56:26,098 INFO L290 TraceCheckUtils]: 1: Hoare triple {103#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [49] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#length_1| 2) 8) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {95#true} is VALID [2022-04-14 18:56:26,098 INFO L290 TraceCheckUtils]: 2: Hoare triple {95#true} [52] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {95#true} is VALID [2022-04-14 18:56:26,098 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {95#true} {95#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {95#true} is VALID [2022-04-14 18:56:26,098 INFO L272 TraceCheckUtils]: 4: Hoare triple {95#true} [48] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {95#true} is VALID [2022-04-14 18:56:26,099 INFO L290 TraceCheckUtils]: 5: Hoare triple {95#true} [51] mainENTRY-->L21-2: Formula: (= v_main_~len~0_2 0) InVars {} OutVars{main_~i~0=v_main_~i~0_1, main_~len~0=v_main_~len~0_2, main_~a~0=v_main_~a~0_1} AuxVars[] AssignedVars[main_~len~0, main_~i~0, main_~a~0] {100#(= main_~len~0 0)} is VALID [2022-04-14 18:56:26,099 INFO L290 TraceCheckUtils]: 6: Hoare triple {100#(= main_~len~0 0)} [54] L21-2-->L21-3: Formula: (= (mod |v_main_#t~nondet4_2| 256) 0) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{} AuxVars[] AssignedVars[main_#t~nondet4] {100#(= main_~len~0 0)} is VALID [2022-04-14 18:56:26,100 INFO L272 TraceCheckUtils]: 7: Hoare triple {100#(= main_~len~0 0)} [56] L21-3-->__VERIFIER_assertENTRY: Formula: (= (ite (< (mod v_main_~len~0_8 4294967296) 5) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~len~0=v_main_~len~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~len~0] {101#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 18:56:26,100 INFO L290 TraceCheckUtils]: 8: Hoare triple {101#(not (= |__VERIFIER_assert_#in~cond| 0))} [60] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_3 |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_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {102#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-14 18:56:26,101 INFO L290 TraceCheckUtils]: 9: Hoare triple {102#(not (= __VERIFIER_assert_~cond 0))} [63] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {96#false} is VALID [2022-04-14 18:56:26,101 INFO L290 TraceCheckUtils]: 10: Hoare triple {96#false} [65] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {96#false} is VALID [2022-04-14 18:56:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:56:26,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 18:56:26,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056211728] [2022-04-14 18:56:26,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056211728] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 18:56:26,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 18:56:26,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-14 18:56:26,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438331867] [2022-04-14 18:56:26,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 18:56:26,103 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-14 18:56:26,103 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 18:56:26,103 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:26,112 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:56:26,112 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-14 18:56:26,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 18:56:26,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-14 18:56:26,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-14 18:56:26,113 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:26,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:56:26,235 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-04-14 18:56:26,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-14 18:56:26,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-14 18:56:26,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 18:56:26,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:26,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 23 transitions. [2022-04-14 18:56:26,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 23 transitions. [2022-04-14 18:56:26,245 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 23 transitions. [2022-04-14 18:56:26,262 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:56:26,264 INFO L225 Difference]: With dead ends: 20 [2022-04-14 18:56:26,264 INFO L226 Difference]: Without dead ends: 17 [2022-04-14 18:56:26,267 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-14 18:56:26,269 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 18:56:26,270 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 29 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 18:56:26,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-04-14 18:56:26,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-04-14 18:56:26,273 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 18:56:26,274 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-04-14 18:56:26,274 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-04-14 18:56:26,275 INFO L87 Difference]: Start difference. First operand 17 states. Second operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-04-14 18:56:26,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:56:26,276 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-04-14 18:56:26,276 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-04-14 18:56:26,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:56:26,278 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:56:26,278 INFO L74 IsIncluded]: Start isIncluded. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 17 states. [2022-04-14 18:56:26,279 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 17 states. [2022-04-14 18:56:26,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:56:26,280 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-04-14 18:56:26,280 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-04-14 18:56:26,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:56:26,280 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:56:26,281 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 18:56:26,281 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 18:56:26,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-04-14 18:56:26,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-04-14 18:56:26,283 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2022-04-14 18:56:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 18:56:26,283 INFO L478 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-04-14 18:56:26,283 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:26,283 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-04-14 18:56:26,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-14 18:56:26,283 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 18:56:26,284 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 18:56:26,284 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-14 18:56:26,284 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 18:56:26,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 18:56:26,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1516694440, now seen corresponding path program 1 times [2022-04-14 18:56:26,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 18:56:26,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577665245] [2022-04-14 18:56:26,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:56:26,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 18:56:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:56:26,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 18:56:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:56:26,388 INFO L290 TraceCheckUtils]: 0: Hoare triple {191#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [49] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#length_1| 2) 8) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {182#true} is VALID [2022-04-14 18:56:26,388 INFO L290 TraceCheckUtils]: 1: Hoare triple {182#true} [52] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,388 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {182#true} {182#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,389 INFO L272 TraceCheckUtils]: 0: Hoare triple {182#true} [47] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {191#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 18:56:26,389 INFO L290 TraceCheckUtils]: 1: Hoare triple {191#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [49] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#length_1| 2) 8) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {182#true} is VALID [2022-04-14 18:56:26,389 INFO L290 TraceCheckUtils]: 2: Hoare triple {182#true} [52] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,389 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {182#true} {182#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,389 INFO L272 TraceCheckUtils]: 4: Hoare triple {182#true} [48] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,390 INFO L290 TraceCheckUtils]: 5: Hoare triple {182#true} [51] mainENTRY-->L21-2: Formula: (= v_main_~len~0_2 0) InVars {} OutVars{main_~i~0=v_main_~i~0_1, main_~len~0=v_main_~len~0_2, main_~a~0=v_main_~a~0_1} AuxVars[] AssignedVars[main_~len~0, main_~i~0, main_~a~0] {187#(= main_~len~0 0)} is VALID [2022-04-14 18:56:26,390 INFO L290 TraceCheckUtils]: 6: Hoare triple {187#(= main_~len~0 0)} [55] L21-2-->L23: Formula: (not (= (mod |v_main_#t~nondet4_4| 256) 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_4|} OutVars{} AuxVars[] AssignedVars[main_#t~nondet4] {187#(= main_~len~0 0)} is VALID [2022-04-14 18:56:26,390 INFO L290 TraceCheckUtils]: 7: Hoare triple {187#(= main_~len~0 0)} [58] L23-->L23-2: Formula: (not (= (mod v_main_~len~0_1 4294967296) 4)) InVars {main_~len~0=v_main_~len~0_1} OutVars{main_~len~0=v_main_~len~0_1} AuxVars[] AssignedVars[] {187#(= main_~len~0 0)} is VALID [2022-04-14 18:56:26,391 INFO L290 TraceCheckUtils]: 8: Hoare triple {187#(= main_~len~0 0)} [61] L23-2-->L21-2: Formula: (and (= v_main_~a~0_2 (store v_main_~a~0_3 (let ((.cse0 (mod v_main_~len~0_4 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) 0)) (= (+ v_main_~len~0_4 1) v_main_~len~0_3)) InVars {main_~len~0=v_main_~len~0_4, main_~a~0=v_main_~a~0_3} OutVars{main_#t~post5=|v_main_#t~post5_1|, main_~len~0=v_main_~len~0_3, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~len~0, main_#t~post5, main_~a~0] {188#(and (<= main_~len~0 1) (not (<= (+ (div main_~len~0 4294967296) 1) 0)))} is VALID [2022-04-14 18:56:26,392 INFO L290 TraceCheckUtils]: 9: Hoare triple {188#(and (<= main_~len~0 1) (not (<= (+ (div main_~len~0 4294967296) 1) 0)))} [54] L21-2-->L21-3: Formula: (= (mod |v_main_#t~nondet4_2| 256) 0) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{} AuxVars[] AssignedVars[main_#t~nondet4] {188#(and (<= main_~len~0 1) (not (<= (+ (div main_~len~0 4294967296) 1) 0)))} is VALID [2022-04-14 18:56:26,394 INFO L272 TraceCheckUtils]: 10: Hoare triple {188#(and (<= main_~len~0 1) (not (<= (+ (div main_~len~0 4294967296) 1) 0)))} [56] L21-3-->__VERIFIER_assertENTRY: Formula: (= (ite (< (mod v_main_~len~0_8 4294967296) 5) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~len~0=v_main_~len~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~len~0] {189#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 18:56:26,394 INFO L290 TraceCheckUtils]: 11: Hoare triple {189#(not (= |__VERIFIER_assert_#in~cond| 0))} [60] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_3 |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_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {190#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-14 18:56:26,394 INFO L290 TraceCheckUtils]: 12: Hoare triple {190#(not (= __VERIFIER_assert_~cond 0))} [63] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {183#false} is VALID [2022-04-14 18:56:26,395 INFO L290 TraceCheckUtils]: 13: Hoare triple {183#false} [65] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {183#false} is VALID [2022-04-14 18:56:26,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:56:26,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 18:56:26,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577665245] [2022-04-14 18:56:26,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577665245] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-14 18:56:26,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189916337] [2022-04-14 18:56:26,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:56:26,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 18:56:26,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 18:56:26,399 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) [2022-04-14 18:56:26,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-14 18:56:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:56:26,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-14 18:56:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:56:26,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 18:56:26,549 INFO L272 TraceCheckUtils]: 0: Hoare triple {182#true} [47] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,550 INFO L290 TraceCheckUtils]: 1: Hoare triple {182#true} [49] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#length_1| 2) 8) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {182#true} is VALID [2022-04-14 18:56:26,550 INFO L290 TraceCheckUtils]: 2: Hoare triple {182#true} [52] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,550 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {182#true} {182#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,550 INFO L272 TraceCheckUtils]: 4: Hoare triple {182#true} [48] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,553 INFO L290 TraceCheckUtils]: 5: Hoare triple {182#true} [51] mainENTRY-->L21-2: Formula: (= v_main_~len~0_2 0) InVars {} OutVars{main_~i~0=v_main_~i~0_1, main_~len~0=v_main_~len~0_2, main_~a~0=v_main_~a~0_1} AuxVars[] AssignedVars[main_~len~0, main_~i~0, main_~a~0] {187#(= main_~len~0 0)} is VALID [2022-04-14 18:56:26,553 INFO L290 TraceCheckUtils]: 6: Hoare triple {187#(= main_~len~0 0)} [55] L21-2-->L23: Formula: (not (= (mod |v_main_#t~nondet4_4| 256) 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_4|} OutVars{} AuxVars[] AssignedVars[main_#t~nondet4] {187#(= main_~len~0 0)} is VALID [2022-04-14 18:56:26,553 INFO L290 TraceCheckUtils]: 7: Hoare triple {187#(= main_~len~0 0)} [58] L23-->L23-2: Formula: (not (= (mod v_main_~len~0_1 4294967296) 4)) InVars {main_~len~0=v_main_~len~0_1} OutVars{main_~len~0=v_main_~len~0_1} AuxVars[] AssignedVars[] {187#(= main_~len~0 0)} is VALID [2022-04-14 18:56:26,554 INFO L290 TraceCheckUtils]: 8: Hoare triple {187#(= main_~len~0 0)} [61] L23-2-->L21-2: Formula: (and (= v_main_~a~0_2 (store v_main_~a~0_3 (let ((.cse0 (mod v_main_~len~0_4 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) 0)) (= (+ v_main_~len~0_4 1) v_main_~len~0_3)) InVars {main_~len~0=v_main_~len~0_4, main_~a~0=v_main_~a~0_3} OutVars{main_#t~post5=|v_main_#t~post5_1|, main_~len~0=v_main_~len~0_3, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~len~0, main_#t~post5, main_~a~0] {219#(= main_~len~0 1)} is VALID [2022-04-14 18:56:26,554 INFO L290 TraceCheckUtils]: 9: Hoare triple {219#(= main_~len~0 1)} [54] L21-2-->L21-3: Formula: (= (mod |v_main_#t~nondet4_2| 256) 0) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{} AuxVars[] AssignedVars[main_#t~nondet4] {219#(= main_~len~0 1)} is VALID [2022-04-14 18:56:26,555 INFO L272 TraceCheckUtils]: 10: Hoare triple {219#(= main_~len~0 1)} [56] L21-3-->__VERIFIER_assertENTRY: Formula: (= (ite (< (mod v_main_~len~0_8 4294967296) 5) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~len~0=v_main_~len~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~len~0] {226#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 18:56:26,556 INFO L290 TraceCheckUtils]: 11: Hoare triple {226#(<= 1 |__VERIFIER_assert_#in~cond|)} [60] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_3 |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_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {230#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 18:56:26,557 INFO L290 TraceCheckUtils]: 12: Hoare triple {230#(<= 1 __VERIFIER_assert_~cond)} [63] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {183#false} is VALID [2022-04-14 18:56:26,557 INFO L290 TraceCheckUtils]: 13: Hoare triple {183#false} [65] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {183#false} is VALID [2022-04-14 18:56:26,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:56:26,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 18:56:26,694 INFO L290 TraceCheckUtils]: 13: Hoare triple {183#false} [65] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {183#false} is VALID [2022-04-14 18:56:26,694 INFO L290 TraceCheckUtils]: 12: Hoare triple {230#(<= 1 __VERIFIER_assert_~cond)} [63] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {183#false} is VALID [2022-04-14 18:56:26,695 INFO L290 TraceCheckUtils]: 11: Hoare triple {226#(<= 1 |__VERIFIER_assert_#in~cond|)} [60] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_3 |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_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {230#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 18:56:26,695 INFO L272 TraceCheckUtils]: 10: Hoare triple {246#(< (mod main_~len~0 4294967296) 5)} [56] L21-3-->__VERIFIER_assertENTRY: Formula: (= (ite (< (mod v_main_~len~0_8 4294967296) 5) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~len~0=v_main_~len~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~len~0] {226#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 18:56:26,696 INFO L290 TraceCheckUtils]: 9: Hoare triple {246#(< (mod main_~len~0 4294967296) 5)} [54] L21-2-->L21-3: Formula: (= (mod |v_main_#t~nondet4_2| 256) 0) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{} AuxVars[] AssignedVars[main_#t~nondet4] {246#(< (mod main_~len~0 4294967296) 5)} is VALID [2022-04-14 18:56:26,697 INFO L290 TraceCheckUtils]: 8: Hoare triple {253#(< (mod (+ main_~len~0 1) 4294967296) 5)} [61] L23-2-->L21-2: Formula: (and (= v_main_~a~0_2 (store v_main_~a~0_3 (let ((.cse0 (mod v_main_~len~0_4 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) 0)) (= (+ v_main_~len~0_4 1) v_main_~len~0_3)) InVars {main_~len~0=v_main_~len~0_4, main_~a~0=v_main_~a~0_3} OutVars{main_#t~post5=|v_main_#t~post5_1|, main_~len~0=v_main_~len~0_3, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~len~0, main_#t~post5, main_~a~0] {246#(< (mod main_~len~0 4294967296) 5)} is VALID [2022-04-14 18:56:26,697 INFO L290 TraceCheckUtils]: 7: Hoare triple {253#(< (mod (+ main_~len~0 1) 4294967296) 5)} [58] L23-->L23-2: Formula: (not (= (mod v_main_~len~0_1 4294967296) 4)) InVars {main_~len~0=v_main_~len~0_1} OutVars{main_~len~0=v_main_~len~0_1} AuxVars[] AssignedVars[] {253#(< (mod (+ main_~len~0 1) 4294967296) 5)} is VALID [2022-04-14 18:56:26,697 INFO L290 TraceCheckUtils]: 6: Hoare triple {253#(< (mod (+ main_~len~0 1) 4294967296) 5)} [55] L21-2-->L23: Formula: (not (= (mod |v_main_#t~nondet4_4| 256) 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_4|} OutVars{} AuxVars[] AssignedVars[main_#t~nondet4] {253#(< (mod (+ main_~len~0 1) 4294967296) 5)} is VALID [2022-04-14 18:56:26,698 INFO L290 TraceCheckUtils]: 5: Hoare triple {182#true} [51] mainENTRY-->L21-2: Formula: (= v_main_~len~0_2 0) InVars {} OutVars{main_~i~0=v_main_~i~0_1, main_~len~0=v_main_~len~0_2, main_~a~0=v_main_~a~0_1} AuxVars[] AssignedVars[main_~len~0, main_~i~0, main_~a~0] {253#(< (mod (+ main_~len~0 1) 4294967296) 5)} is VALID [2022-04-14 18:56:26,698 INFO L272 TraceCheckUtils]: 4: Hoare triple {182#true} [48] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,698 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {182#true} {182#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,698 INFO L290 TraceCheckUtils]: 2: Hoare triple {182#true} [52] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,699 INFO L290 TraceCheckUtils]: 1: Hoare triple {182#true} [49] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#length_1| 2) 8) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {182#true} is VALID [2022-04-14 18:56:26,699 INFO L272 TraceCheckUtils]: 0: Hoare triple {182#true} [47] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {182#true} is VALID [2022-04-14 18:56:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:56:26,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189916337] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-14 18:56:26,699 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-14 18:56:26,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2022-04-14 18:56:26,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810973549] [2022-04-14 18:56:26,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-14 18:56:26,700 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-14 18:56:26,700 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 18:56:26,700 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:26,719 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:56:26,719 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-14 18:56:26,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 18:56:26,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-14 18:56:26,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-04-14 18:56:26,720 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:26,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:56:26,905 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-04-14 18:56:26,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-14 18:56:26,906 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-14 18:56:26,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 18:56:26,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:26,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 28 transitions. [2022-04-14 18:56:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:26,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 28 transitions. [2022-04-14 18:56:26,908 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 28 transitions. [2022-04-14 18:56:26,932 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:56:26,932 INFO L225 Difference]: With dead ends: 22 [2022-04-14 18:56:26,932 INFO L226 Difference]: Without dead ends: 0 [2022-04-14 18:56:26,933 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-04-14 18:56:26,933 INFO L913 BasicCegarLoop]: 10 mSDtfsCounter, 29 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-14 18:56:26,934 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 32 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-14 18:56:26,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-14 18:56:26,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-14 18:56:26,934 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 18:56:26,934 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) [2022-04-14 18:56:26,934 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) [2022-04-14 18:56:26,935 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) [2022-04-14 18:56:26,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:56:26,935 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-14 18:56:26,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 18:56:26,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:56:26,935 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:56:26,935 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. [2022-04-14 18:56:26,935 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. [2022-04-14 18:56:26,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:56:26,935 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-14 18:56:26,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 18:56:26,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:56:26,936 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:56:26,936 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 18:56:26,936 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 18:56:26,936 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) [2022-04-14 18:56:26,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-14 18:56:26,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-04-14 18:56:26,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 18:56:26,936 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-14 18:56:26,936 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-14 18:56:26,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 18:56:26,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:56:26,938 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-14 18:56:26,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-14 18:56:27,157 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 [2022-04-14 18:56:27,160 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-14 18:56:27,161 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-14 18:56:27,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 06:56:27 BasicIcfg [2022-04-14 18:56:27,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-14 18:56:27,164 INFO L158 Benchmark]: Toolchain (without parser) took 2142.52ms. Allocated memory is still 179.3MB. Free memory was 131.4MB in the beginning and 96.3MB in the end (delta: 35.1MB). Peak memory consumption was 36.4MB. Max. memory is 8.0GB. [2022-04-14 18:56:27,164 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 179.3MB. Free memory was 148.1MB in the beginning and 148.1MB in the end (delta: 76.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-14 18:56:27,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.75ms. Allocated memory is still 179.3MB. Free memory was 131.2MB in the beginning and 157.7MB in the end (delta: -26.5MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. [2022-04-14 18:56:27,165 INFO L158 Benchmark]: Boogie Preprocessor took 16.23ms. Allocated memory is still 179.3MB. Free memory was 157.7MB in the beginning and 156.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-14 18:56:27,165 INFO L158 Benchmark]: RCFGBuilder took 179.79ms. Allocated memory is still 179.3MB. Free memory was 156.1MB in the beginning and 146.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-14 18:56:27,165 INFO L158 Benchmark]: IcfgTransformer took 20.82ms. Allocated memory is still 179.3MB. Free memory was 146.1MB in the beginning and 144.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-14 18:56:27,166 INFO L158 Benchmark]: TraceAbstraction took 1731.70ms. Allocated memory is still 179.3MB. Free memory was 144.0MB in the beginning and 96.3MB in the end (delta: 47.8MB). Peak memory consumption was 48.3MB. Max. memory is 8.0GB. [2022-04-14 18:56:27,179 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 0.09ms. Allocated memory is still 179.3MB. Free memory was 148.1MB in the beginning and 148.1MB in the end (delta: 76.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 178.75ms. Allocated memory is still 179.3MB. Free memory was 131.2MB in the beginning and 157.7MB in the end (delta: -26.5MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.23ms. Allocated memory is still 179.3MB. Free memory was 157.7MB in the beginning and 156.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 179.79ms. Allocated memory is still 179.3MB. Free memory was 156.1MB in the beginning and 146.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 20.82ms. Allocated memory is still 179.3MB. Free memory was 146.1MB in the beginning and 144.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1731.70ms. Allocated memory is still 179.3MB. Free memory was 144.0MB in the beginning and 96.3MB in the end (delta: 47.8MB). Peak memory consumption was 48.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 43 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 SizeOfPredicates, 1 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-14 18:56:27,214 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...