/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/loop-acceleration/multivar_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 21:20:33,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 21:20:33,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 21:20:33,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 21:20:33,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 21:20:33,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 21:20:33,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 21:20:33,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 21:20:33,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 21:20:33,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 21:20:33,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 21:20:33,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 21:20:33,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 21:20:33,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 21:20:33,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 21:20:33,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 21:20:33,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 21:20:33,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 21:20:33,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 21:20:33,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 21:20:33,857 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 21:20:33,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 21:20:33,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 21:20:33,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 21:20:33,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 21:20:33,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-27 21:20:33,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 21:20:33,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 21:20:33,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 21:20:33,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-27 21:20:33,905 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 21:20:33,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 21:20:33,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-27 21:20:33,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-27 21:20:33,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-27 21:20:33,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-27 21:20:33,907 INFO L138 SettingsManager]: * Use SBE=true [2022-04-27 21:20:33,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 21:20:33,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 21:20:33,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 21:20:33,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 21:20:33,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 21:20:33,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 21:20:33,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 21:20:33,908 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 21:20:33,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 21:20:33,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 21:20:33,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 21:20:33,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 21:20:33,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 21:20:33,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 21:20:33,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-27 21:20:33,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-27 21:20:33,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 21:20:33,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-27 21:20:33,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-27 21:20:33,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-27 21:20:33,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-27 21:20:33,910 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-27 21:20:33,911 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 21:20:34,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 21:20:34,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 21:20:34,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 21:20:34,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 21:20:34,065 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 21:20:34,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/multivar_1-1.c [2022-04-27 21:20:34,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f49d9067/5ea2a0147a82418cb62d86a8a3a839da/FLAG72305819e [2022-04-27 21:20:34,406 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 21:20:34,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-1.c [2022-04-27 21:20:34,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f49d9067/5ea2a0147a82418cb62d86a8a3a839da/FLAG72305819e [2022-04-27 21:20:34,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f49d9067/5ea2a0147a82418cb62d86a8a3a839da [2022-04-27 21:20:34,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 21:20:34,861 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-27 21:20:34,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 21:20:34,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 21:20:34,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 21:20:34,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 09:20:34" (1/1) ... [2022-04-27 21:20:34,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fcdbf73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 09:20:34, skipping insertion in model container [2022-04-27 21:20:34,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 09:20:34" (1/1) ... [2022-04-27 21:20:34,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 21:20:34,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 21:20:34,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-1.c[374,387] [2022-04-27 21:20:35,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 21:20:35,023 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 21:20:35,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-1.c[374,387] [2022-04-27 21:20:35,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 21:20:35,043 INFO L208 MainTranslator]: Completed translation [2022-04-27 21:20:35,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 09:20:35 WrapperNode [2022-04-27 21:20:35,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 21:20:35,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 21:20:35,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 21:20:35,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 21:20:35,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 09:20:35" (1/1) ... [2022-04-27 21:20:35,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 09:20:35" (1/1) ... [2022-04-27 21:20:35,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 09:20:35" (1/1) ... [2022-04-27 21:20:35,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 09:20:35" (1/1) ... [2022-04-27 21:20:35,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 09:20:35" (1/1) ... [2022-04-27 21:20:35,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 09:20:35" (1/1) ... [2022-04-27 21:20:35,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 09:20:35" (1/1) ... [2022-04-27 21:20:35,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 21:20:35,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 21:20:35,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 21:20:35,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 21:20:35,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 09:20:35" (1/1) ... [2022-04-27 21:20:35,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 21:20:35,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 21:20:35,106 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) [2022-04-27 21:20:35,124 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 [2022-04-27 21:20:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 21:20:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 21:20:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 21:20:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 21:20:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 21:20:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 21:20:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 21:20:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 21:20:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 21:20:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-27 21:20:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 21:20:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 21:20:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 21:20:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 21:20:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 21:20:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 21:20:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 21:20:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 21:20:35,173 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 21:20:35,174 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 21:20:35,247 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 21:20:35,251 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 21:20:35,251 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-27 21:20:35,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 09:20:35 BoogieIcfgContainer [2022-04-27 21:20:35,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 21:20:35,253 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-27 21:20:35,253 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-27 21:20:35,254 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-27 21:20:35,256 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 09:20:35" (1/1) ... [2022-04-27 21:20:35,257 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-27 21:20:35,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 09:20:35 BasicIcfg [2022-04-27 21:20:35,267 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-27 21:20:35,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 21:20:35,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 21:20:35,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 21:20:35,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 09:20:34" (1/4) ... [2022-04-27 21:20:35,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73717c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 09:20:35, skipping insertion in model container [2022-04-27 21:20:35,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 09:20:35" (2/4) ... [2022-04-27 21:20:35,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73717c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 09:20:35, skipping insertion in model container [2022-04-27 21:20:35,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 09:20:35" (3/4) ... [2022-04-27 21:20:35,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73717c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 09:20:35, skipping insertion in model container [2022-04-27 21:20:35,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 09:20:35" (4/4) ... [2022-04-27 21:20:35,291 INFO L111 eAbstractionObserver]: Analyzing ICFG multivar_1-1.cqvasr [2022-04-27 21:20:35,299 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-27 21:20:35,299 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 21:20:35,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 21:20:35,340 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3c2b8a22, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@35e760a0 [2022-04-27 21:20:35,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 21:20:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 21:20:35,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-27 21:20:35,350 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 21:20:35,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 21:20:35,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 21:20:35,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 21:20:35,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1690616289, now seen corresponding path program 1 times [2022-04-27 21:20:35,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 21:20:35,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464971856] [2022-04-27 21:20:35,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 21:20:35,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 21:20:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 21:20:35,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 21:20:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 21:20:35,456 INFO L290 TraceCheckUtils]: 0: Hoare triple {26#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {21#true} is VALID [2022-04-27 21:20:35,456 INFO L290 TraceCheckUtils]: 1: Hoare triple {21#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-27 21:20:35,456 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {21#true} {21#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-27 21:20:35,457 INFO L272 TraceCheckUtils]: 0: Hoare triple {21#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 21:20:35,458 INFO L290 TraceCheckUtils]: 1: Hoare triple {26#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {21#true} is VALID [2022-04-27 21:20:35,458 INFO L290 TraceCheckUtils]: 2: Hoare triple {21#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-27 21:20:35,458 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-27 21:20:35,458 INFO L272 TraceCheckUtils]: 4: Hoare triple {21#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-27 21:20:35,458 INFO L290 TraceCheckUtils]: 5: Hoare triple {21#true} [43] mainENTRY-->L17-2: Formula: (and (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (= v_main_~x~0_1 v_main_~y~0_1)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~y~0] {21#true} is VALID [2022-04-27 21:20:35,459 INFO L290 TraceCheckUtils]: 6: Hoare triple {21#true} [45] L17-2-->L17-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {22#false} is VALID [2022-04-27 21:20:35,459 INFO L272 TraceCheckUtils]: 7: Hoare triple {22#false} [48] L17-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= (mod v_main_~y~0_5 4294967296) (mod v_main_~x~0_6 4294967296)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {22#false} is VALID [2022-04-27 21:20:35,459 INFO L290 TraceCheckUtils]: 8: Hoare triple {22#false} [50] __VERIFIER_assertENTRY-->L7: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {22#false} is VALID [2022-04-27 21:20:35,460 INFO L290 TraceCheckUtils]: 9: Hoare triple {22#false} [51] L7-->L8: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {22#false} is VALID [2022-04-27 21:20:35,460 INFO L290 TraceCheckUtils]: 10: Hoare triple {22#false} [53] L8-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#false} is VALID [2022-04-27 21:20:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 21:20:35,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 21:20:35,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464971856] [2022-04-27 21:20:35,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464971856] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 21:20:35,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 21:20:35,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-27 21:20:35,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900174394] [2022-04-27 21:20:35,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 21:20:35,465 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 [2022-04-27 21:20:35,466 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 21:20:35,468 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) [2022-04-27 21:20:35,479 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 21:20:35,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-27 21:20:35,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 21:20:35,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-27 21:20:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 21:20:35,493 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 21:20:35,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 21:20:35,556 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-04-27 21:20:35,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-27 21:20:35,556 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 [2022-04-27 21:20:35,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 21:20:35,557 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) [2022-04-27 21:20:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-04-27 21:20:35,563 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) [2022-04-27 21:20:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-04-27 21:20:35,567 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 32 transitions. [2022-04-27 21:20:35,619 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 21:20:35,624 INFO L225 Difference]: With dead ends: 29 [2022-04-27 21:20:35,624 INFO L226 Difference]: Without dead ends: 12 [2022-04-27 21:20:35,626 INFO L412 NwaCegarLoop]: 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 [2022-04-27 21:20:35,628 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 21:20:35,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 21:20:35,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-04-27 21:20:35,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-04-27 21:20:35,653 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 21:20:35,654 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 21:20:35,654 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 21:20:35,656 INFO L87 Difference]: Start difference. First operand 12 states. Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 21:20:35,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 21:20:35,661 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-04-27 21:20:35,661 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-27 21:20:35,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 21:20:35,662 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 21:20:35,662 INFO L74 IsIncluded]: Start isIncluded. First operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 12 states. [2022-04-27 21:20:35,662 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 12 states. [2022-04-27 21:20:35,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 21:20:35,664 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-04-27 21:20:35,664 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-27 21:20:35,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 21:20:35,664 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 21:20:35,665 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 21:20:35,665 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 21:20:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 21:20:35,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-04-27 21:20:35,668 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2022-04-27 21:20:35,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 21:20:35,669 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-04-27 21:20:35,670 INFO L496 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) [2022-04-27 21:20:35,671 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-27 21:20:35,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-27 21:20:35,675 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 21:20:35,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 21:20:35,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 21:20:35,676 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 21:20:35,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 21:20:35,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1689692768, now seen corresponding path program 1 times [2022-04-27 21:20:35,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 21:20:35,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193206348] [2022-04-27 21:20:35,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 21:20:35,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 21:20:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 21:20:35,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 21:20:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 21:20:35,848 INFO L290 TraceCheckUtils]: 0: Hoare triple {118#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {110#true} is VALID [2022-04-27 21:20:35,848 INFO L290 TraceCheckUtils]: 1: Hoare triple {110#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {110#true} is VALID [2022-04-27 21:20:35,848 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {110#true} {110#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {110#true} is VALID [2022-04-27 21:20:35,849 INFO L272 TraceCheckUtils]: 0: Hoare triple {110#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 21:20:35,849 INFO L290 TraceCheckUtils]: 1: Hoare triple {118#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 15) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {110#true} is VALID [2022-04-27 21:20:35,849 INFO L290 TraceCheckUtils]: 2: Hoare triple {110#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {110#true} is VALID [2022-04-27 21:20:35,849 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {110#true} {110#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {110#true} is VALID [2022-04-27 21:20:35,849 INFO L272 TraceCheckUtils]: 4: Hoare triple {110#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {110#true} is VALID [2022-04-27 21:20:35,850 INFO L290 TraceCheckUtils]: 5: Hoare triple {110#true} [43] mainENTRY-->L17-2: Formula: (and (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (= v_main_~x~0_1 v_main_~y~0_1)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~y~0] {115#(= (+ main_~x~0 (* (- 1) main_~y~0)) 0)} is VALID [2022-04-27 21:20:35,850 INFO L290 TraceCheckUtils]: 6: Hoare triple {115#(= (+ main_~x~0 (* (- 1) main_~y~0)) 0)} [46] L17-2-->L17-3: Formula: (not (< (mod v_main_~x~0_2 4294967296) 1024)) InVars {main_~x~0=v_main_~x~0_2} OutVars{main_~x~0=v_main_~x~0_2} AuxVars[] AssignedVars[] {115#(= (+ main_~x~0 (* (- 1) main_~y~0)) 0)} is VALID [2022-04-27 21:20:35,851 INFO L272 TraceCheckUtils]: 7: Hoare triple {115#(= (+ main_~x~0 (* (- 1) main_~y~0)) 0)} [48] L17-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= (mod v_main_~y~0_5 4294967296) (mod v_main_~x~0_6 4294967296)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {116#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-27 21:20:35,852 INFO L290 TraceCheckUtils]: 8: Hoare triple {116#(not (= |__VERIFIER_assert_#in~cond| 0))} [50] __VERIFIER_assertENTRY-->L7: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {117#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-27 21:20:35,852 INFO L290 TraceCheckUtils]: 9: Hoare triple {117#(not (= __VERIFIER_assert_~cond 0))} [51] L7-->L8: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {111#false} is VALID [2022-04-27 21:20:35,853 INFO L290 TraceCheckUtils]: 10: Hoare triple {111#false} [53] L8-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {111#false} is VALID [2022-04-27 21:20:35,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 21:20:35,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 21:20:35,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193206348] [2022-04-27 21:20:35,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193206348] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 21:20:35,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 21:20:35,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-27 21:20:35,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48538874] [2022-04-27 21:20:35,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 21:20:35,855 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 [2022-04-27 21:20:35,855 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 21:20:35,855 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) [2022-04-27 21:20:35,864 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 21:20:35,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-27 21:20:35,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 21:20:35,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-27 21:20:35,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-27 21:20:35,865 INFO L87 Difference]: Start difference. First operand 12 states and 12 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) [2022-04-27 21:20:35,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 21:20:35,924 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-04-27 21:20:35,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-27 21:20:35,924 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 [2022-04-27 21:20:35,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 21:20:35,925 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) [2022-04-27 21:20:35,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 12 transitions. [2022-04-27 21:20:35,926 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) [2022-04-27 21:20:35,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 12 transitions. [2022-04-27 21:20:35,926 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 12 transitions. [2022-04-27 21:20:35,937 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 21:20:35,937 INFO L225 Difference]: With dead ends: 12 [2022-04-27 21:20:35,937 INFO L226 Difference]: Without dead ends: 0 [2022-04-27 21:20:35,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-27 21:20:35,938 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 21:20:35,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 24 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 21:20:35,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-27 21:20:35,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-27 21:20:35,940 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 21:20:35,940 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) [2022-04-27 21:20:35,940 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) [2022-04-27 21:20:35,940 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) [2022-04-27 21:20:35,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 21:20:35,940 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 21:20:35,940 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 21:20:35,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 21:20:35,940 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 21:20:35,940 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. [2022-04-27 21:20:35,941 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. [2022-04-27 21:20:35,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 21:20:35,941 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 21:20:35,941 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 21:20:35,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 21:20:35,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 21:20:35,941 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 21:20:35,941 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 21:20:35,941 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) [2022-04-27 21:20:35,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-27 21:20:35,942 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-04-27 21:20:35,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 21:20:35,942 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-27 21:20:35,942 INFO L496 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) [2022-04-27 21:20:35,942 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 21:20:35,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 21:20:35,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 21:20:35,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-27 21:20:35,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-27 21:20:35,961 INFO L895 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-27 21:20:35,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-27 21:20:35,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-27 21:20:35,961 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-27 21:20:35,961 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-27 21:20:35,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-27 21:20:35,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-27 21:20:35,961 INFO L902 garLoopResultBuilder]: At program point mainENTRY(lines 13 23) the Hoare annotation is: true [2022-04-27 21:20:35,961 INFO L895 garLoopResultBuilder]: At program point L17-2(lines 17 20) the Hoare annotation is: (= (+ main_~x~0 (* (- 1) main_~y~0)) 0) [2022-04-27 21:20:35,962 INFO L895 garLoopResultBuilder]: At program point L17-3(lines 17 20) the Hoare annotation is: (= (+ main_~x~0 (* (- 1) main_~y~0)) 0) [2022-04-27 21:20:35,962 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 13 23) no Hoare annotation was computed. [2022-04-27 21:20:35,962 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 13 23) no Hoare annotation was computed. [2022-04-27 21:20:35,962 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2022-04-27 21:20:35,962 INFO L899 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2022-04-27 21:20:35,962 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-04-27 21:20:35,962 INFO L899 garLoopResultBuilder]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2022-04-27 21:20:35,962 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2022-04-27 21:20:35,962 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2022-04-27 21:20:35,964 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-27 21:20:35,966 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 21:20:35,969 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-27 21:20:35,969 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-27 21:20:35,969 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-27 21:20:35,970 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-27 21:20:35,970 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-27 21:20:35,971 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-27 21:20:35,971 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2022-04-27 21:20:35,971 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2022-04-27 21:20:35,971 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2022-04-27 21:20:35,971 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 21:20:35,971 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-27 21:20:35,971 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-27 21:20:35,971 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-27 21:20:35,971 INFO L163 areAnnotationChecker]: CFG has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-27 21:20:35,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 09:20:35 BasicIcfg [2022-04-27 21:20:35,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 21:20:35,978 INFO L158 Benchmark]: Toolchain (without parser) took 1117.10ms. Allocated memory is still 222.3MB. Free memory was 198.4MB in the beginning and 130.1MB in the end (delta: 68.2MB). Peak memory consumption was 67.0MB. Max. memory is 8.0GB. [2022-04-27 21:20:35,979 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 222.3MB. Free memory is still 183.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 21:20:35,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.87ms. Allocated memory is still 222.3MB. Free memory was 198.4MB in the beginning and 196.3MB in the end (delta: 2.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-27 21:20:35,979 INFO L158 Benchmark]: Boogie Preprocessor took 22.60ms. Allocated memory is still 222.3MB. Free memory was 196.3MB in the beginning and 195.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 21:20:35,979 INFO L158 Benchmark]: RCFGBuilder took 183.77ms. Allocated memory is still 222.3MB. Free memory was 194.7MB in the beginning and 184.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-27 21:20:35,980 INFO L158 Benchmark]: IcfgTransformer took 14.17ms. Allocated memory is still 222.3MB. Free memory was 184.2MB in the beginning and 183.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-27 21:20:35,980 INFO L158 Benchmark]: TraceAbstraction took 709.30ms. Allocated memory is still 222.3MB. Free memory was 182.6MB in the beginning and 130.1MB in the end (delta: 52.5MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. [2022-04-27 21:20:35,981 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 222.3MB. Free memory is still 183.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 182.87ms. Allocated memory is still 222.3MB. Free memory was 198.4MB in the beginning and 196.3MB in the end (delta: 2.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.60ms. Allocated memory is still 222.3MB. Free memory was 196.3MB in the beginning and 195.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 183.77ms. Allocated memory is still 222.3MB. Free memory was 194.7MB in the beginning and 184.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 14.17ms. Allocated memory is still 222.3MB. Free memory was 184.2MB in the beginning and 183.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 709.30ms. Allocated memory is still 222.3MB. Free memory was 182.6MB in the beginning and 130.1MB in the end (delta: 52.5MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 24 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 25 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 50 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x + -1 * y == 0 RESULT: Ultimate proved your program to be correct! [2022-04-27 21:20:36,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...