/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-lit/hhk2008.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 06:14:20,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 06:14:20,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 06:14:20,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 06:14:20,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 06:14:20,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 06:14:20,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 06:14:20,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-15 06:14:20,732 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 06:14:20,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 06:14:20,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 06:14:20,734 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-15 06:14:20,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 06:14:20,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-15 06:14:20,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 06:14:20,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 06:14:20,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 06:14:20,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 06:14:20,735 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-15 06:14:20,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 06:14:20,735 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 06:14:20,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 06:14:20,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 06:14:20,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 06:14:20,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 06:14:20,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 06:14:20,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 06:14:20,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 06:14:20,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 06:14:20,737 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 06:14:20,737 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 06:14:20,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 06:14:20,737 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-15 06:14:20,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 06:14:20,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 06:14:20,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 06:14:20,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 06:14:20,953 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 06:14:20,955 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 06:14:20,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/hhk2008.i [2022-04-15 06:14:21,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/991c4c1eb/ae17a0290db546248912978dfceade46/FLAG681b426d7 [2022-04-15 06:14:21,505 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 06:14:21,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008.i [2022-04-15 06:14:21,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/991c4c1eb/ae17a0290db546248912978dfceade46/FLAG681b426d7 [2022-04-15 06:14:21,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/991c4c1eb/ae17a0290db546248912978dfceade46 [2022-04-15 06:14:21,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 06:14:21,873 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 06:14:21,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 06:14:21,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 06:14:21,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 06:14:21,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 06:14:21" (1/1) ... [2022-04-15 06:14:21,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9186dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:14:21, skipping insertion in model container [2022-04-15 06:14:21,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 06:14:21" (1/1) ... [2022-04-15 06:14:21,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 06:14:21,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 06:14:22,117 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/hhk2008.i[895,908] [2022-04-15 06:14:22,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 06:14:22,144 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 06:14:22,157 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/hhk2008.i[895,908] [2022-04-15 06:14:22,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 06:14:22,170 INFO L208 MainTranslator]: Completed translation [2022-04-15 06:14:22,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:14:22 WrapperNode [2022-04-15 06:14:22,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 06:14:22,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 06:14:22,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 06:14:22,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 06:14:22,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:14:22" (1/1) ... [2022-04-15 06:14:22,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:14:22" (1/1) ... [2022-04-15 06:14:22,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:14:22" (1/1) ... [2022-04-15 06:14:22,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:14:22" (1/1) ... [2022-04-15 06:14:22,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:14:22" (1/1) ... [2022-04-15 06:14:22,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:14:22" (1/1) ... [2022-04-15 06:14:22,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:14:22" (1/1) ... [2022-04-15 06:14:22,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 06:14:22,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 06:14:22,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 06:14:22,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 06:14:22,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:14:22" (1/1) ... [2022-04-15 06:14:22,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 06:14:22,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 06:14:22,265 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) [2022-04-15 06:14:22,330 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 [2022-04-15 06:14:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 06:14:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 06:14:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 06:14:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-15 06:14:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 06:14:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 06:14:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 06:14:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 06:14:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-15 06:14:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-15 06:14:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 06:14:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 06:14:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-15 06:14:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 06:14:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 06:14:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 06:14:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 06:14:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 06:14:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 06:14:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 06:14:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 06:14:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 06:14:22,436 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 06:14:22,437 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 06:14:22,567 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 06:14:22,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 06:14:22,572 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 06:14:22,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 06:14:22 BoogieIcfgContainer [2022-04-15 06:14:22,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 06:14:22,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 06:14:22,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 06:14:22,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 06:14:22,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 06:14:21" (1/3) ... [2022-04-15 06:14:22,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f20011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 06:14:22, skipping insertion in model container [2022-04-15 06:14:22,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:14:22" (2/3) ... [2022-04-15 06:14:22,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f20011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 06:14:22, skipping insertion in model container [2022-04-15 06:14:22,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 06:14:22" (3/3) ... [2022-04-15 06:14:22,587 INFO L111 eAbstractionObserver]: Analyzing ICFG hhk2008.i [2022-04-15 06:14:22,591 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 06:14:22,591 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 06:14:22,656 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 06:14:22,675 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 [2022-04-15 06:14:22,676 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 06:14:22,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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) [2022-04-15 06:14:22,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-15 06:14:22,693 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 06:14:22,693 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 06:14:22,694 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 06:14:22,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 06:14:22,698 INFO L85 PathProgramCache]: Analyzing trace with hash 499112448, now seen corresponding path program 1 times [2022-04-15 06:14:22,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 06:14:22,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [808511569] [2022-04-15 06:14:22,719 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 06:14:22,719 INFO L85 PathProgramCache]: Analyzing trace with hash 499112448, now seen corresponding path program 2 times [2022-04-15 06:14:22,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 06:14:22,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531749895] [2022-04-15 06:14:22,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 06:14:22,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 06:14:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:14:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 06:14:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:14:22,921 INFO L290 TraceCheckUtils]: 0: Hoare triple {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {24#true} is VALID [2022-04-15 06:14:22,921 INFO L290 TraceCheckUtils]: 1: Hoare triple {24#true} assume true; {24#true} is VALID [2022-04-15 06:14:22,921 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {24#true} {24#true} #58#return; {24#true} is VALID [2022-04-15 06:14:22,923 INFO L272 TraceCheckUtils]: 0: Hoare triple {24#true} call ULTIMATE.init(); {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 06:14:22,923 INFO L290 TraceCheckUtils]: 1: Hoare triple {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {24#true} is VALID [2022-04-15 06:14:22,923 INFO L290 TraceCheckUtils]: 2: Hoare triple {24#true} assume true; {24#true} is VALID [2022-04-15 06:14:22,923 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {24#true} {24#true} #58#return; {24#true} is VALID [2022-04-15 06:14:22,924 INFO L272 TraceCheckUtils]: 4: Hoare triple {24#true} call #t~ret3 := main(); {24#true} is VALID [2022-04-15 06:14:22,925 INFO L290 TraceCheckUtils]: 5: Hoare triple {24#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~a~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~b~0 := #t~nondet2;havoc #t~nondet2;havoc ~res~0;havoc ~cnt~0; {24#true} is VALID [2022-04-15 06:14:22,925 INFO L290 TraceCheckUtils]: 6: Hoare triple {24#true} assume !!(~a~0 <= 1000000); {24#true} is VALID [2022-04-15 06:14:22,925 INFO L290 TraceCheckUtils]: 7: Hoare triple {24#true} assume !!(0 <= ~b~0 && ~b~0 <= 1000000);~res~0 := ~a~0;~cnt~0 := ~b~0; {24#true} is VALID [2022-04-15 06:14:22,926 INFO L290 TraceCheckUtils]: 8: Hoare triple {24#true} assume !true; {25#false} is VALID [2022-04-15 06:14:22,926 INFO L272 TraceCheckUtils]: 9: Hoare triple {25#false} call __VERIFIER_assert((if ~res~0 == ~a~0 + ~b~0 then 1 else 0)); {25#false} is VALID [2022-04-15 06:14:22,927 INFO L290 TraceCheckUtils]: 10: Hoare triple {25#false} ~cond := #in~cond; {25#false} is VALID [2022-04-15 06:14:22,927 INFO L290 TraceCheckUtils]: 11: Hoare triple {25#false} assume 0 == ~cond; {25#false} is VALID [2022-04-15 06:14:22,927 INFO L290 TraceCheckUtils]: 12: Hoare triple {25#false} assume !false; {25#false} is VALID [2022-04-15 06:14:22,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:14:22,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 06:14:22,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531749895] [2022-04-15 06:14:22,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531749895] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:14:22,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:14:22,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 06:14:22,931 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 06:14:22,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [808511569] [2022-04-15 06:14:22,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [808511569] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:14:22,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:14:22,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 06:14:22,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232516604] [2022-04-15 06:14:22,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 06:14:22,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 13 [2022-04-15 06:14:22,937 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 06:14:22,938 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-04-15 06:14:22,960 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:14:22,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-15 06:14:22,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 06:14:22,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-15 06:14:22,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 06:14:22,992 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-04-15 06:14:23,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:14:23,070 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2022-04-15 06:14:23,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-15 06:14:23,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 13 [2022-04-15 06:14:23,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 06:14:23,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-04-15 06:14:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2022-04-15 06:14:23,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-04-15 06:14:23,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2022-04-15 06:14:23,079 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 38 transitions. [2022-04-15 06:14:23,152 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:14:23,157 INFO L225 Difference]: With dead ends: 33 [2022-04-15 06:14:23,157 INFO L226 Difference]: Without dead ends: 14 [2022-04-15 06:14:23,159 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 06:14:23,162 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 25 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 [2022-04-15 06:14:23,162 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 25 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 06:14:23,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-04-15 06:14:23,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-04-15 06:14:23,182 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 06:14:23,183 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:14:23,183 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:14:23,183 INFO L87 Difference]: Start difference. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:14:23,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:14:23,185 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-04-15 06:14:23,185 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-15 06:14:23,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:14:23,185 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:14:23,186 INFO L74 IsIncluded]: Start isIncluded. First operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 14 states. [2022-04-15 06:14:23,186 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 14 states. [2022-04-15 06:14:23,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:14:23,187 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-04-15 06:14:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-15 06:14:23,188 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:14:23,188 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:14:23,188 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 06:14:23,188 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 06:14:23,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:14:23,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-04-15 06:14:23,190 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 13 [2022-04-15 06:14:23,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 06:14:23,191 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-04-15 06:14:23,191 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-04-15 06:14:23,191 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 14 states and 14 transitions. [2022-04-15 06:14:23,205 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:14:23,205 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-15 06:14:23,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-15 06:14:23,206 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 06:14:23,206 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 06:14:23,206 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 06:14:23,206 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 06:14:23,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 06:14:23,207 INFO L85 PathProgramCache]: Analyzing trace with hash 495418364, now seen corresponding path program 1 times [2022-04-15 06:14:23,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 06:14:23,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1849587817] [2022-04-15 06:14:23,208 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 06:14:23,208 INFO L85 PathProgramCache]: Analyzing trace with hash 495418364, now seen corresponding path program 2 times [2022-04-15 06:14:23,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 06:14:23,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001168287] [2022-04-15 06:14:23,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 06:14:23,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 06:14:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:14:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 06:14:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:14:23,321 INFO L290 TraceCheckUtils]: 0: Hoare triple {163#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {154#true} is VALID [2022-04-15 06:14:23,321 INFO L290 TraceCheckUtils]: 1: Hoare triple {154#true} assume true; {154#true} is VALID [2022-04-15 06:14:23,321 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {154#true} {154#true} #58#return; {154#true} is VALID [2022-04-15 06:14:23,322 INFO L272 TraceCheckUtils]: 0: Hoare triple {154#true} call ULTIMATE.init(); {163#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 06:14:23,322 INFO L290 TraceCheckUtils]: 1: Hoare triple {163#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {154#true} is VALID [2022-04-15 06:14:23,322 INFO L290 TraceCheckUtils]: 2: Hoare triple {154#true} assume true; {154#true} is VALID [2022-04-15 06:14:23,322 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {154#true} {154#true} #58#return; {154#true} is VALID [2022-04-15 06:14:23,323 INFO L272 TraceCheckUtils]: 4: Hoare triple {154#true} call #t~ret3 := main(); {154#true} is VALID [2022-04-15 06:14:23,323 INFO L290 TraceCheckUtils]: 5: Hoare triple {154#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~a~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~b~0 := #t~nondet2;havoc #t~nondet2;havoc ~res~0;havoc ~cnt~0; {154#true} is VALID [2022-04-15 06:14:23,323 INFO L290 TraceCheckUtils]: 6: Hoare triple {154#true} assume !!(~a~0 <= 1000000); {154#true} is VALID [2022-04-15 06:14:23,324 INFO L290 TraceCheckUtils]: 7: Hoare triple {154#true} assume !!(0 <= ~b~0 && ~b~0 <= 1000000);~res~0 := ~a~0;~cnt~0 := ~b~0; {159#(and (< main_~res~0 (+ main_~b~0 main_~a~0 1)) (or (<= (+ main_~b~0 main_~a~0) main_~res~0) (<= (+ main_~b~0 main_~a~0) (+ main_~cnt~0 main_~res~0))))} is VALID [2022-04-15 06:14:23,324 INFO L290 TraceCheckUtils]: 8: Hoare triple {159#(and (< main_~res~0 (+ main_~b~0 main_~a~0 1)) (or (<= (+ main_~b~0 main_~a~0) main_~res~0) (<= (+ main_~b~0 main_~a~0) (+ main_~cnt~0 main_~res~0))))} assume !(~cnt~0 > 0); {160#(and (< main_~res~0 (+ main_~b~0 main_~a~0 1)) (<= (+ main_~b~0 main_~a~0) main_~res~0))} is VALID [2022-04-15 06:14:23,325 INFO L272 TraceCheckUtils]: 9: Hoare triple {160#(and (< main_~res~0 (+ main_~b~0 main_~a~0 1)) (<= (+ main_~b~0 main_~a~0) main_~res~0))} call __VERIFIER_assert((if ~res~0 == ~a~0 + ~b~0 then 1 else 0)); {161#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 06:14:23,326 INFO L290 TraceCheckUtils]: 10: Hoare triple {161#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {162#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-15 06:14:23,326 INFO L290 TraceCheckUtils]: 11: Hoare triple {162#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {155#false} is VALID [2022-04-15 06:14:23,326 INFO L290 TraceCheckUtils]: 12: Hoare triple {155#false} assume !false; {155#false} is VALID [2022-04-15 06:14:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:14:23,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 06:14:23,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001168287] [2022-04-15 06:14:23,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001168287] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:14:23,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:14:23,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-15 06:14:23,327 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 06:14:23,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1849587817] [2022-04-15 06:14:23,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1849587817] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:14:23,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:14:23,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-15 06:14:23,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655253741] [2022-04-15 06:14:23,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 06:14:23,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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 13 [2022-04-15 06:14:23,329 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 06:14:23,329 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-04-15 06:14:23,339 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:14:23,340 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-15 06:14:23,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 06:14:23,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-15 06:14:23,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-04-15 06:14:23,341 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-04-15 06:14:23,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:14:23,525 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-04-15 06:14:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-15 06:14:23,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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 13 [2022-04-15 06:14:23,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 06:14:23,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-04-15 06:14:23,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2022-04-15 06:14:23,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-04-15 06:14:23,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2022-04-15 06:14:23,529 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 20 transitions. [2022-04-15 06:14:23,547 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:14:23,550 INFO L225 Difference]: With dead ends: 20 [2022-04-15 06:14:23,551 INFO L226 Difference]: Without dead ends: 15 [2022-04-15 06:14:23,551 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-04-15 06:14:23,554 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 06:14:23,554 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 33 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 06:14:23,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-04-15 06:14:23,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-04-15 06:14:23,560 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 06:14:23,560 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:14:23,561 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:14:23,561 INFO L87 Difference]: Start difference. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:14:23,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:14:23,563 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-15 06:14:23,563 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-15 06:14:23,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:14:23,563 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:14:23,564 INFO L74 IsIncluded]: Start isIncluded. First operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 15 states. [2022-04-15 06:14:23,566 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 15 states. [2022-04-15 06:14:23,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:14:23,568 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-15 06:14:23,568 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-15 06:14:23,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:14:23,568 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:14:23,569 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 06:14:23,569 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 06:14:23,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:14:23,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-04-15 06:14:23,571 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2022-04-15 06:14:23,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 06:14:23,571 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-04-15 06:14:23,572 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-04-15 06:14:23,572 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 15 states and 15 transitions. [2022-04-15 06:14:23,584 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:14:23,586 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-15 06:14:23,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-15 06:14:23,586 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 06:14:23,586 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 06:14:23,586 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-15 06:14:23,587 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 06:14:23,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 06:14:23,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1787404818, now seen corresponding path program 1 times [2022-04-15 06:14:23,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 06:14:23,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [287365718] [2022-04-15 06:14:27,797 WARN L977 rdanLoopAcceleration]: Unable to prove correctness of quantifier elimination. [2022-04-15 06:14:27,890 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-04-15 06:14:27,891 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-04-15 06:14:27,894 INFO L85 PathProgramCache]: Analyzing trace with hash -899901137, now seen corresponding path program 1 times [2022-04-15 06:14:27,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 06:14:27,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112710517] [2022-04-15 06:14:27,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 06:14:27,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 06:14:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:14:28,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 06:14:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:14:28,030 INFO L290 TraceCheckUtils]: 0: Hoare triple {284#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {274#true} is VALID [2022-04-15 06:14:28,030 INFO L290 TraceCheckUtils]: 1: Hoare triple {274#true} assume true; {274#true} is VALID [2022-04-15 06:14:28,030 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {274#true} {274#true} #58#return; {274#true} is VALID [2022-04-15 06:14:28,031 INFO L272 TraceCheckUtils]: 0: Hoare triple {274#true} call ULTIMATE.init(); {284#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 06:14:28,031 INFO L290 TraceCheckUtils]: 1: Hoare triple {284#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {274#true} is VALID [2022-04-15 06:14:28,031 INFO L290 TraceCheckUtils]: 2: Hoare triple {274#true} assume true; {274#true} is VALID [2022-04-15 06:14:28,031 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {274#true} {274#true} #58#return; {274#true} is VALID [2022-04-15 06:14:28,031 INFO L272 TraceCheckUtils]: 4: Hoare triple {274#true} call #t~ret3 := main(); {274#true} is VALID [2022-04-15 06:14:28,031 INFO L290 TraceCheckUtils]: 5: Hoare triple {274#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~a~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~b~0 := #t~nondet2;havoc #t~nondet2;havoc ~res~0;havoc ~cnt~0; {274#true} is VALID [2022-04-15 06:14:28,032 INFO L290 TraceCheckUtils]: 6: Hoare triple {274#true} assume !!(~a~0 <= 1000000); {274#true} is VALID [2022-04-15 06:14:28,032 INFO L290 TraceCheckUtils]: 7: Hoare triple {274#true} assume !!(0 <= ~b~0 && ~b~0 <= 1000000);~res~0 := ~a~0;~cnt~0 := ~b~0; {279#(and (<= main_~res~0 (+ main_~b~0 main_~a~0)) (<= (+ main_~b~0 main_~a~0) (+ main_~cnt~0 main_~res~0)) (<= (+ main_~cnt~0 main_~res~0) (+ main_~b~0 main_~a~0)))} is VALID [2022-04-15 06:14:28,033 INFO L290 TraceCheckUtils]: 8: Hoare triple {279#(and (<= main_~res~0 (+ main_~b~0 main_~a~0)) (<= (+ main_~b~0 main_~a~0) (+ main_~cnt~0 main_~res~0)) (<= (+ main_~cnt~0 main_~res~0) (+ main_~b~0 main_~a~0)))} [62] L32-2-->L32-3_primed: Formula: (let ((.cse0 (= v_main_~cnt~0_7 v_main_~cnt~0_6)) (.cse1 (= v_main_~res~0_8 v_main_~res~0_7))) (or (and (= (+ v_main_~cnt~0_7 v_main_~res~0_8) (+ v_main_~cnt~0_6 v_main_~res~0_7)) (< 0 (+ v_main_~cnt~0_6 1)) (< v_main_~cnt~0_6 v_main_~cnt~0_7)) (and .cse0 .cse1 (not (< 0 v_main_~cnt~0_7))) (and .cse0 .cse1))) InVars {main_~res~0=v_main_~res~0_8, main_~cnt~0=v_main_~cnt~0_7} OutVars{main_~res~0=v_main_~res~0_7, main_~cnt~0=v_main_~cnt~0_6} AuxVars[] AssignedVars[main_~res~0, main_~cnt~0] {280#(or (and (< main_~res~0 (+ main_~b~0 main_~a~0 1)) (<= (+ main_~b~0 main_~a~0) main_~res~0)) (<= 1 main_~cnt~0))} is VALID [2022-04-15 06:14:28,034 INFO L290 TraceCheckUtils]: 9: Hoare triple {280#(or (and (< main_~res~0 (+ main_~b~0 main_~a~0 1)) (<= (+ main_~b~0 main_~a~0) main_~res~0)) (<= 1 main_~cnt~0))} [61] L32-3_primed-->L32-3: Formula: (not (< 0 v_main_~cnt~0_4)) InVars {main_~cnt~0=v_main_~cnt~0_4} OutVars{main_~cnt~0=v_main_~cnt~0_4} AuxVars[] AssignedVars[] {281#(and (< main_~res~0 (+ main_~b~0 main_~a~0 1)) (<= (+ main_~b~0 main_~a~0) main_~res~0))} is VALID [2022-04-15 06:14:28,035 INFO L272 TraceCheckUtils]: 10: Hoare triple {281#(and (< main_~res~0 (+ main_~b~0 main_~a~0 1)) (<= (+ main_~b~0 main_~a~0) main_~res~0))} call __VERIFIER_assert((if ~res~0 == ~a~0 + ~b~0 then 1 else 0)); {282#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 06:14:28,035 INFO L290 TraceCheckUtils]: 11: Hoare triple {282#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {283#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-15 06:14:28,036 INFO L290 TraceCheckUtils]: 12: Hoare triple {283#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {275#false} is VALID [2022-04-15 06:14:28,036 INFO L290 TraceCheckUtils]: 13: Hoare triple {275#false} assume !false; {275#false} is VALID [2022-04-15 06:14:28,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:14:28,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 06:14:28,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112710517] [2022-04-15 06:14:28,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112710517] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:14:28,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:14:28,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-15 06:14:28,131 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 06:14:28,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [287365718] [2022-04-15 06:14:28,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [287365718] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:14:28,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:14:28,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-15 06:14:28,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232231739] [2022-04-15 06:14:28,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 06:14:28,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 14 [2022-04-15 06:14:28,132 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 06:14:28,132 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-04-15 06:14:28,142 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:14:28,143 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-15 06:14:28,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 06:14:28,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-15 06:14:28,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-15 06:14:28,144 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-04-15 06:14:28,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:14:28,268 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-15 06:14:28,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-15 06:14:28,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 14 [2022-04-15 06:14:28,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 06:14:28,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-04-15 06:14:28,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 14 transitions. [2022-04-15 06:14:28,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-04-15 06:14:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 14 transitions. [2022-04-15 06:14:28,270 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 14 transitions. [2022-04-15 06:14:28,282 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:14:28,282 INFO L225 Difference]: With dead ends: 15 [2022-04-15 06:14:28,282 INFO L226 Difference]: Without dead ends: 0 [2022-04-15 06:14:28,283 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-04-15 06:14:28,284 INFO L913 BasicCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 06:14:28,284 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 31 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 06:14:28,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-15 06:14:28,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-15 06:14:28,285 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 06:14:28,285 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) [2022-04-15 06:14:28,285 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) [2022-04-15 06:14:28,285 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) [2022-04-15 06:14:28,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:14:28,285 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-15 06:14:28,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 06:14:28,286 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:14:28,286 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:14:28,286 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. [2022-04-15 06:14:28,286 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. [2022-04-15 06:14:28,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:14:28,286 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-15 06:14:28,286 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 06:14:28,286 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:14:28,286 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:14:28,286 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 06:14:28,287 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 06:14:28,287 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) [2022-04-15 06:14:28,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-15 06:14:28,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-04-15 06:14:28,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 06:14:28,287 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-15 06:14:28,287 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-04-15 06:14:28,287 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2022-04-15 06:14:28,288 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:14:28,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 06:14:28,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:14:28,290 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-15 06:14:28,290 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-15 06:14:28,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-15 06:14:28,351 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2022-04-15 06:14:28,351 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2022-04-15 06:14:28,351 INFO L882 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-04-15 06:14:28,352 INFO L882 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-04-15 06:14:28,352 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2022-04-15 06:14:28,352 INFO L882 garLoopResultBuilder]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2022-04-15 06:14:28,352 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2022-04-15 06:14:28,352 INFO L878 garLoopResultBuilder]: At program point L32-2(lines 32 35) the Hoare annotation is: (let ((.cse1 (+ main_~cnt~0 main_~res~0)) (.cse0 (+ main_~b~0 main_~a~0))) (and (<= main_~res~0 .cse0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2022-04-15 06:14:28,352 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 24 38) the Hoare annotation is: true [2022-04-15 06:14:28,352 INFO L885 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: true [2022-04-15 06:14:28,352 INFO L878 garLoopResultBuilder]: At program point L32-3(lines 32 35) the Hoare annotation is: (and (< main_~res~0 (+ main_~b~0 main_~a~0 1)) (<= (+ main_~b~0 main_~a~0) main_~res~0)) [2022-04-15 06:14:28,352 INFO L885 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: true [2022-04-15 06:14:28,353 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 24 38) the Hoare annotation is: true [2022-04-15 06:14:28,353 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 24 38) the Hoare annotation is: true [2022-04-15 06:14:28,353 INFO L885 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: true [2022-04-15 06:14:28,353 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-04-15 06:14:28,353 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-15 06:14:28,353 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-04-15 06:14:28,353 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-04-15 06:14:28,353 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-15 06:14:28,353 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-15 06:14:28,353 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-04-15 06:14:28,353 INFO L885 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2022-04-15 06:14:28,354 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2022-04-15 06:14:28,354 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2022-04-15 06:14:28,354 INFO L878 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-04-15 06:14:28,354 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-04-15 06:14:28,354 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))) [2022-04-15 06:14:28,356 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2022-04-15 06:14:28,357 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-15 06:14:28,359 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-15 06:14:28,360 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-15 06:14:28,360 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2022-04-15 06:14:28,361 WARN L170 areAnnotationChecker]: L12-1 has no Hoare annotation [2022-04-15 06:14:28,361 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-15 06:14:28,361 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-15 06:14:28,361 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2022-04-15 06:14:28,366 INFO L163 areAnnotationChecker]: CFG has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-15 06:14:28,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 06:14:28 BoogieIcfgContainer [2022-04-15 06:14:28,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-15 06:14:28,374 INFO L158 Benchmark]: Toolchain (without parser) took 6501.37ms. Allocated memory was 188.7MB in the beginning and 265.3MB in the end (delta: 76.5MB). Free memory was 134.0MB in the beginning and 167.0MB in the end (delta: -33.0MB). Peak memory consumption was 42.4MB. Max. memory is 8.0GB. [2022-04-15 06:14:28,375 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory is still 150.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 06:14:28,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.75ms. Allocated memory is still 188.7MB. Free memory was 164.9MB in the beginning and 162.3MB in the end (delta: 2.6MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. [2022-04-15 06:14:28,375 INFO L158 Benchmark]: Boogie Preprocessor took 35.86ms. Allocated memory is still 188.7MB. Free memory was 162.3MB in the beginning and 161.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 06:14:28,375 INFO L158 Benchmark]: RCFGBuilder took 364.64ms. Allocated memory is still 188.7MB. Free memory was 161.0MB in the beginning and 149.8MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-15 06:14:28,376 INFO L158 Benchmark]: TraceAbstraction took 5799.30ms. Allocated memory was 188.7MB in the beginning and 265.3MB in the end (delta: 76.5MB). Free memory was 149.1MB in the beginning and 167.0MB in the end (delta: -17.9MB). Peak memory consumption was 58.0MB. Max. memory is 8.0GB. [2022-04-15 06:14:28,380 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 0.12ms. Allocated memory is still 188.7MB. Free memory is still 150.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 279.75ms. Allocated memory is still 188.7MB. Free memory was 164.9MB in the beginning and 162.3MB in the end (delta: 2.6MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.86ms. Allocated memory is still 188.7MB. Free memory was 162.3MB in the beginning and 161.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 364.64ms. Allocated memory is still 188.7MB. Free memory was 161.0MB in the beginning and 149.8MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 5799.30ms. Allocated memory was 188.7MB in the beginning and 265.3MB in the end (delta: 76.5MB). Free memory was 149.1MB in the beginning and 167.0MB in the end (delta: -17.9MB). Peak memory consumption was 58.0MB. 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: 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, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 42 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 33 PreInvPairs, 45 NumberOfFragments, 68 HoareAnnotationTreeSize, 33 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 31 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: 32]: Loop Invariant Derived loop invariant: (res <= b + a && b + a <= cnt + res) && cnt + res <= b + a - 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! [2022-04-15 06:14:28,398 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...