/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 18:15:47,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 18:15:47,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 18:15:47,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 18:15:47,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 18:15:47,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 18:15:47,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 18:15:47,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 18:15:47,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 18:15:47,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 18:15:47,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 18:15:47,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 18:15:47,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 18:15:47,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 18:15:47,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 18:15:47,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 18:15:47,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 18:15:47,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 18:15:47,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 18:15:47,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 18:15:47,778 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 18:15:47,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 18:15:47,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 18:15:47,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 18:15:47,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 18:15:47,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 18:15:47,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 18:15:47,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 18:15:47,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 18:15:47,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 18:15:47,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 18:15:47,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 18:15:47,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 18:15:47,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 18:15:47,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 18:15:47,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 18:15:47,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 18:15:47,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 18:15:47,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 18:15:47,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 18:15:47,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 18:15:47,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 18:15:47,797 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-20 18:15:47,804 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 18:15:47,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 18:15:47,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 18:15:47,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 18:15:47,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 18:15:47,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 18:15:47,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 18:15:47,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 18:15:47,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 18:15:47,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 18:15:47,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 18:15:47,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 18:15:47,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 18:15:47,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 18:15:47,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 18:15:47,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 18:15:47,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 18:15:47,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 18:15:47,807 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 18:15:47,807 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 18:15:47,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 18:15:47,807 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-20 18:15:47,807 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 18:15:48,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 18:15:48,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 18:15:48,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 18:15:48,021 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 18:15:48,021 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 18:15:48,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005.i [2022-03-20 18:15:48,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7994735bc/9a3dc6dfc4c64640bf49e7a403c81c21/FLAG6bf2b1b3b [2022-03-20 18:15:48,401 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 18:15:48,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005.i [2022-03-20 18:15:48,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7994735bc/9a3dc6dfc4c64640bf49e7a403c81c21/FLAG6bf2b1b3b [2022-03-20 18:15:48,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7994735bc/9a3dc6dfc4c64640bf49e7a403c81c21 [2022-03-20 18:15:48,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 18:15:48,838 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 18:15:48,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 18:15:48,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 18:15:48,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 18:15:48,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 06:15:48" (1/1) ... [2022-03-20 18:15:48,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106a276b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:15:48, skipping insertion in model container [2022-03-20 18:15:48,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 06:15:48" (1/1) ... [2022-03-20 18:15:48,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 18:15:48,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 18:15:48,998 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-lit/cggmp2005.i[895,908] [2022-03-20 18:15:49,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 18:15:49,010 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 18:15:49,018 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-lit/cggmp2005.i[895,908] [2022-03-20 18:15:49,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 18:15:49,027 INFO L208 MainTranslator]: Completed translation [2022-03-20 18:15:49,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:15:49 WrapperNode [2022-03-20 18:15:49,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 18:15:49,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 18:15:49,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 18:15:49,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 18:15:49,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:15:49" (1/1) ... [2022-03-20 18:15:49,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:15:49" (1/1) ... [2022-03-20 18:15:49,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:15:49" (1/1) ... [2022-03-20 18:15:49,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:15:49" (1/1) ... [2022-03-20 18:15:49,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:15:49" (1/1) ... [2022-03-20 18:15:49,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:15:49" (1/1) ... [2022-03-20 18:15:49,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:15:49" (1/1) ... [2022-03-20 18:15:49,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 18:15:49,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 18:15:49,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 18:15:49,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 18:15:49,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:15:49" (1/1) ... [2022-03-20 18:15:49,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 18:15:49,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 18:15:49,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 18:15:49,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 18:15:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 18:15:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 18:15:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 18:15:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 18:15:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 18:15:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 18:15:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 18:15:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 18:15:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-03-20 18:15:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-03-20 18:15:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 18:15:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 18:15:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 18:15:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 18:15:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 18:15:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 18:15:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 18:15:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 18:15:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 18:15:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 18:15:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 18:15:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 18:15:49,185 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 18:15:49,186 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 18:15:49,256 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 18:15:49,260 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 18:15:49,260 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 18:15:49,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 06:15:49 BoogieIcfgContainer [2022-03-20 18:15:49,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 18:15:49,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 18:15:49,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 18:15:49,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 18:15:49,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 06:15:48" (1/3) ... [2022-03-20 18:15:49,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6542a479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 06:15:49, skipping insertion in model container [2022-03-20 18:15:49,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:15:49" (2/3) ... [2022-03-20 18:15:49,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6542a479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 06:15:49, skipping insertion in model container [2022-03-20 18:15:49,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 06:15:49" (3/3) ... [2022-03-20 18:15:49,268 INFO L111 eAbstractionObserver]: Analyzing ICFG cggmp2005.i [2022-03-20 18:15:49,272 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 18:15:49,272 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 18:15:49,310 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 18:15:49,319 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 18:15:49,319 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 18:15:49,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 18:15:49,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-20 18:15:49,341 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:15:49,342 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 18:15:49,342 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 18:15:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:15:49,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1817730928, now seen corresponding path program 1 times [2022-03-20 18:15:49,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:15:49,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [766663486] [2022-03-20 18:15:49,361 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:15:49,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1817730928, now seen corresponding path program 2 times [2022-03-20 18:15:49,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:15:49,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818016072] [2022-03-20 18:15:49,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:15:49,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:15:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:15:49,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:15:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:15:49,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:15:49,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:15:49,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818016072] [2022-03-20 18:15:49,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818016072] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:15:49,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:15:49,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 18:15:49,549 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:15:49,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [766663486] [2022-03-20 18:15:49,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [766663486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:15:49,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:15:49,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 18:15:49,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370019140] [2022-03-20 18:15:49,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:15:49,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 18:15:49,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:15:49,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 18:15:49,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 18:15:49,591 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:15:49,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:15:49,667 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-03-20 18:15:49,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 18:15:49,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-20 18:15:49,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:15:49,675 INFO L225 Difference]: With dead ends: 32 [2022-03-20 18:15:49,676 INFO L226 Difference]: Without dead ends: 13 [2022-03-20 18:15:49,678 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 18:15:49,680 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 18:15:49,681 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 26 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 18:15:49,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-03-20 18:15:49,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-03-20 18:15:49,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:15:49,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-03-20 18:15:49,710 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-03-20 18:15:49,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:15:49,711 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-03-20 18:15:49,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:15:49,711 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-03-20 18:15:49,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-20 18:15:49,712 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:15:49,712 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 18:15:49,712 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 18:15:49,712 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 18:15:49,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:15:49,713 INFO L85 PathProgramCache]: Analyzing trace with hash -480588846, now seen corresponding path program 1 times [2022-03-20 18:15:49,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:15:49,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [595452235] [2022-03-20 18:15:50,015 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 18:15:50,017 INFO L85 PathProgramCache]: Analyzing trace with hash 406914835, now seen corresponding path program 1 times [2022-03-20 18:15:50,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:15:50,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510473938] [2022-03-20 18:15:50,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:15:50,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:15:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:15:50,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:15:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:15:50,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:15:50,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:15:50,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510473938] [2022-03-20 18:15:50,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510473938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:15:50,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:15:50,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 18:15:50,199 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:15:50,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [595452235] [2022-03-20 18:15:50,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [595452235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:15:50,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:15:50,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 18:15:50,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300862599] [2022-03-20 18:15:50,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:15:50,201 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 18:15:50,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:15:50,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 18:15:50,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 18:15:50,202 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:15:50,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:15:50,249 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-03-20 18:15:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 18:15:50,249 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-03-20 18:15:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:15:50,250 INFO L225 Difference]: With dead ends: 13 [2022-03-20 18:15:50,251 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 18:15:50,255 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-03-20 18:15:50,258 INFO L913 BasicCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 18:15:50,263 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 32 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-03-20 18:15:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 18:15:50,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 18:15:50,265 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) [2022-03-20 18:15:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 18:15:50,266 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-03-20 18:15:50,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:15:50,266 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 18:15:50,266 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:15:50,266 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 18:15:50,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 18:15:50,268 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 18:15:50,269 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 18:15:50,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-20 18:15:50,354 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2022-03-20 18:15:50,354 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2022-03-20 18:15:50,354 INFO L882 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-03-20 18:15:50,354 INFO L882 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-03-20 18:15:50,354 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2022-03-20 18:15:50,355 INFO L882 garLoopResultBuilder]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2022-03-20 18:15:50,355 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2022-03-20 18:15:50,355 INFO L885 garLoopResultBuilder]: At program point L32(line 32) the Hoare annotation is: true [2022-03-20 18:15:50,355 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 24 34) the Hoare annotation is: true [2022-03-20 18:15:50,355 INFO L878 garLoopResultBuilder]: At program point L28-2(lines 28 31) the Hoare annotation is: (exists ((v_main_~j~0_12 Int)) (and (<= 10 v_main_~j~0_12) (<= v_main_~j~0_12 10) (or (and (= v_main_~j~0_12 main_~j~0) (= main_~i~0 1)) (and (<= main_~i~0 (+ main_~j~0 3)) (<= main_~j~0 v_main_~j~0_12) (= (+ (* v_main_~j~0_12 2) 1) (+ (* main_~j~0 2) main_~i~0)))))) [2022-03-20 18:15:50,355 INFO L878 garLoopResultBuilder]: At program point L28-3(lines 28 31) the Hoare annotation is: (and (<= main_~j~0 6) (< 5 main_~j~0)) [2022-03-20 18:15:50,355 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 24 34) the Hoare annotation is: true [2022-03-20 18:15:50,356 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 24 34) the Hoare annotation is: true [2022-03-20 18:15:50,356 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-03-20 18:15:50,356 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-20 18:15:50,356 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-03-20 18:15:50,356 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-03-20 18:15:50,356 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-20 18:15:50,356 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-20 18:15:50,356 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-03-20 18:15:50,356 INFO L885 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2022-03-20 18:15:50,357 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2022-03-20 18:15:50,357 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2022-03-20 18:15:50,357 INFO L878 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-03-20 18:15:50,357 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-03-20 18:15:50,357 INFO L878 garLoopResultBuilder]: At program point L18(lines 18 20) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-03-20 18:15:50,360 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-03-20 18:15:50,361 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 18:15:50,374 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,375 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,375 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,375 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,375 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,381 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,381 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 06:15:50 BoogieIcfgContainer [2022-03-20 18:15:50,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 18:15:50,388 INFO L158 Benchmark]: Toolchain (without parser) took 1546.42ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 129.2MB in the beginning and 181.6MB in the end (delta: -52.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 18:15:50,388 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory was 145.1MB in the beginning and 145.0MB in the end (delta: 67.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 18:15:50,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.36ms. Allocated memory is still 184.5MB. Free memory was 129.0MB in the beginning and 156.5MB in the end (delta: -27.5MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. [2022-03-20 18:15:50,389 INFO L158 Benchmark]: Boogie Preprocessor took 17.29ms. Allocated memory is still 184.5MB. Free memory was 156.5MB in the beginning and 155.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 18:15:50,389 INFO L158 Benchmark]: RCFGBuilder took 215.69ms. Allocated memory is still 184.5MB. Free memory was 155.0MB in the beginning and 145.3MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-20 18:15:50,391 INFO L158 Benchmark]: TraceAbstraction took 1120.71ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 144.8MB in the beginning and 181.6MB in the end (delta: -36.8MB). Peak memory consumption was 848.2kB. Max. memory is 8.0GB. [2022-03-20 18:15:50,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory was 145.1MB in the beginning and 145.0MB in the end (delta: 67.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 189.36ms. Allocated memory is still 184.5MB. Free memory was 129.0MB in the beginning and 156.5MB in the end (delta: -27.5MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.29ms. Allocated memory is still 184.5MB. Free memory was 156.5MB in the beginning and 155.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 215.69ms. Allocated memory is still 184.5MB. Free memory was 155.0MB in the beginning and 145.3MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1120.71ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 144.8MB in the beginning and 181.6MB in the end (delta: -36.8MB). Peak memory consumption was 848.2kB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] * 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: 19]: 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 6 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 5 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 24 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 25 PreInvPairs, 34 NumberOfFragments, 77 HoareAnnotationTreeSize, 25 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 58 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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: 28]: Loop Invariant [2022-03-20 18:15:50,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,402 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,402 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,402 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] [2022-03-20 18:15:50,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_12,QUANTIFIED] Derived loop invariant: (\exists v_main_~j~0_12 : int :: (10 <= v_main_~j~0_12 && v_main_~j~0_12 <= 10) && ((v_main_~j~0_12 == j && i == 1) || ((i <= j + 3 && j <= v_main_~j~0_12) && v_main_~j~0_12 * 2 + 1 == j * 2 + i))) - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 RESULT: Ultimate proved your program to be correct! [2022-03-20 18:15:50,425 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...