/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/loops-crafted-1/sumt8.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 19:06:47,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 19:06:47,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 19:06:47,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 19:06:47,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 19:06:47,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 19:06:47,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 19:06:47,941 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 19:06:47,952 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 19:06:47,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 19:06:47,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 19:06:47,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 19:06:47,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 19:06:47,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 19:06:47,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 19:06:47,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 19:06:47,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 19:06:47,957 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 19:06:47,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 19:06:47,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 19:06:47,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 19:06:47,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 19:06:47,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 19:06:47,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 19:06:47,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 19:06:47,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 19:06:47,958 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 19:06:47,958 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 19:06:47,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 19:06:47,958 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-20 19:06:47,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 19:06:48,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 19:06:48,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 19:06:48,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 19:06:48,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 19:06:48,213 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 19:06:48,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c [2022-03-20 19:06:48,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/204b4cd71/c3038701de124838998a3b93fb5746c8/FLAG780cca506 [2022-03-20 19:06:48,645 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 19:06:48,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt8.c [2022-03-20 19:06:48,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/204b4cd71/c3038701de124838998a3b93fb5746c8/FLAG780cca506 [2022-03-20 19:06:48,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/204b4cd71/c3038701de124838998a3b93fb5746c8 [2022-03-20 19:06:48,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 19:06:48,687 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 19:06:48,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 19:06:48,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 19:06:48,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 19:06:48,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:06:48" (1/1) ... [2022-03-20 19:06:48,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33479dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:06:48, skipping insertion in model container [2022-03-20 19:06:48,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:06:48" (1/1) ... [2022-03-20 19:06:48,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 19:06:48,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 19:06:48,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt8.c[403,416] [2022-03-20 19:06:48,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 19:06:48,931 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 19:06:48,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt8.c[403,416] [2022-03-20 19:06:48,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 19:06:48,968 INFO L208 MainTranslator]: Completed translation [2022-03-20 19:06:48,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:06:48 WrapperNode [2022-03-20 19:06:48,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 19:06:48,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 19:06:48,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 19:06:48,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 19:06:48,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:06:48" (1/1) ... [2022-03-20 19:06:48,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:06:48" (1/1) ... [2022-03-20 19:06:48,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:06:48" (1/1) ... [2022-03-20 19:06:48,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:06:48" (1/1) ... [2022-03-20 19:06:49,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:06:48" (1/1) ... [2022-03-20 19:06:49,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:06:48" (1/1) ... [2022-03-20 19:06:49,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:06:48" (1/1) ... [2022-03-20 19:06:49,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 19:06:49,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 19:06:49,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 19:06:49,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 19:06:49,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:06:48" (1/1) ... [2022-03-20 19:06:49,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 19:06:49,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 19:06:49,053 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 19:06:49,075 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 19:06:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 19:06:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 19:06:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 19:06:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 19:06:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 19:06:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 19:06:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 19:06:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 19:06:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 19:06:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 19:06:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 19:06:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 19:06:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 19:06:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 19:06:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 19:06:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 19:06:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 19:06:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 19:06:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 19:06:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 19:06:49,150 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 19:06:49,151 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 19:06:58,066 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 19:06:58,070 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 19:06:58,071 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 19:06:58,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:06:58 BoogieIcfgContainer [2022-03-20 19:06:58,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 19:06:58,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 19:06:58,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 19:06:58,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 19:06:58,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 07:06:48" (1/3) ... [2022-03-20 19:06:58,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e25a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:06:58, skipping insertion in model container [2022-03-20 19:06:58,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:06:48" (2/3) ... [2022-03-20 19:06:58,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e25a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:06:58, skipping insertion in model container [2022-03-20 19:06:58,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:06:58" (3/3) ... [2022-03-20 19:06:58,079 INFO L111 eAbstractionObserver]: Analyzing ICFG sumt8.c [2022-03-20 19:06:58,083 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 19:06:58,084 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 19:06:58,117 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 19:06:58,122 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 19:06:58,122 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 19:06:58,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.6) internal successors, (32), 22 states have internal predecessors, (32), 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 19:06:58,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-20 19:06:58,139 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 19:06:58,140 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 19:06:58,140 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 19:06:58,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 19:06:58,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1128394070, now seen corresponding path program 1 times [2022-03-20 19:06:58,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 19:06:58,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1209484564] [2022-03-20 19:06:58,160 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 19:06:58,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1128394070, now seen corresponding path program 2 times [2022-03-20 19:06:58,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 19:06:58,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119021581] [2022-03-20 19:06:58,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 19:06:58,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 19:06:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 19:06:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 19:06:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 19:06:58,933 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 19:06:58,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 19:06:58,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119021581] [2022-03-20 19:06:58,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119021581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 19:06:58,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 19:06:58,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 19:06:58,938 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 19:06:58,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1209484564] [2022-03-20 19:06:58,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1209484564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 19:06:58,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 19:06:58,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 19:06:58,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574887031] [2022-03-20 19:06:58,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 19:06:58,945 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 19:06:58,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 19:06:58,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 19:06:58,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-03-20 19:06:58,976 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.6) internal successors, (32), 22 states have internal predecessors, (32), 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 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2022-03-20 19:07:01,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 19:07:03,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 19:07:05,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 19:07:07,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 19:07:10,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 19:07:12,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 19:07:14,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 19:07:16,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 19:07:18,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 19:07:21,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 19:07:23,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 19:07:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 19:07:23,472 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2022-03-20 19:07:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 19:07:23,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 [2022-03-20 19:07:23,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 19:07:23,479 INFO L225 Difference]: With dead ends: 66 [2022-03-20 19:07:23,480 INFO L226 Difference]: Without dead ends: 34 [2022-03-20 19:07:23,482 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-03-20 19:07:23,484 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 57 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 14 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2022-03-20 19:07:23,485 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 55 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 123 Invalid, 11 Unknown, 0 Unchecked, 24.2s Time] [2022-03-20 19:07:23,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-03-20 19:07:23,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2022-03-20 19:07:23,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 19:07:23,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-03-20 19:07:23,518 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2022-03-20 19:07:23,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 19:07:23,519 INFO L478 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-03-20 19:07:23,520 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2022-03-20 19:07:23,521 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-03-20 19:07:23,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-20 19:07:23,522 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 19:07:23,523 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 19:07:23,524 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 19:07:23,524 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 19:07:23,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 19:07:23,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1294727378, now seen corresponding path program 1 times [2022-03-20 19:07:23,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 19:07:23,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1376914048] [2022-03-20 19:07:24,081 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 19:07:24,084 INFO L85 PathProgramCache]: Analyzing trace with hash 508503026, now seen corresponding path program 1 times [2022-03-20 19:07:24,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 19:07:24,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529605125] [2022-03-20 19:07:24,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 19:07:24,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 19:07:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 19:07:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 19:07:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 19:07:24,564 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 19:07:24,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 19:07:24,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529605125] [2022-03-20 19:07:24,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529605125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 19:07:24,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 19:07:24,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 19:07:25,062 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 19:07:25,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1376914048] [2022-03-20 19:07:25,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1376914048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 19:07:25,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 19:07:25,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-20 19:07:25,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953040149] [2022-03-20 19:07:25,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 19:07:25,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-20 19:07:25,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 19:07:25,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-20 19:07:25,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-03-20 19:07:25,065 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 19:07:25,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 19:07:25,467 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2022-03-20 19:07:25,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 19:07:25,468 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-03-20 19:07:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 19:07:25,468 INFO L225 Difference]: With dead ends: 32 [2022-03-20 19:07:25,468 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 19:07:25,469 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2022-03-20 19:07:25,469 INFO L913 BasicCegarLoop]: 8 mSDtfsCounter, 19 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 19:07:25,470 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 45 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 19:07:25,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 19:07:25,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 19:07:25,471 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 19:07:25,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 19:07:25,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-03-20 19:07:25,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 19:07:25,471 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 19:07:25,471 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 19:07:25,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 19:07:25,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 19:07:25,474 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 19:07:25,474 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 19:07:25,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-20 19:07:25,884 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-03-20 19:07:25,885 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-03-20 19:07:25,885 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-03-20 19:07:25,885 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 5 7) no Hoare annotation was computed. [2022-03-20 19:07:25,885 INFO L882 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-03-20 19:07:25,885 INFO L882 garLoopResultBuilder]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2022-03-20 19:07:25,885 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-03-20 19:07:25,885 INFO L878 garLoopResultBuilder]: At program point L35-2(lines 23 38) the Hoare annotation is: (and (= main_~v5~0 1) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (< (mod main_~l~0 4294967296) (mod main_~n~0 4294967296)) (= main_~v1~0 0) (= main_~v3~0 0)) [2022-03-20 19:07:25,885 INFO L878 garLoopResultBuilder]: At program point L31(lines 31 38) the Hoare annotation is: false [2022-03-20 19:07:25,885 INFO L878 garLoopResultBuilder]: At program point L27(lines 27 38) the Hoare annotation is: false [2022-03-20 19:07:25,885 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 16 43) the Hoare annotation is: true [2022-03-20 19:07:25,886 INFO L878 garLoopResultBuilder]: At program point L23(lines 23 38) the Hoare annotation is: (and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (< (mod main_~l~0 4294967296) (mod main_~n~0 4294967296)) (= main_~v1~0 0) (= main_~v3~0 0)) [2022-03-20 19:07:25,886 INFO L878 garLoopResultBuilder]: At program point L40(line 40) the Hoare annotation is: (and (= main_~v5~0 1) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 1) (= main_~i~0 0) (= main_~v4~0 0) (< (mod (+ main_~l~0 4294967295) 4294967296) (mod main_~n~0 4294967296)) (= main_~v1~0 0) (= main_~v3~0 0)) [2022-03-20 19:07:25,886 INFO L878 garLoopResultBuilder]: At program point L40-1(lines 21 41) the Hoare annotation is: (let ((.cse0 (= main_~k~0 0)) (.cse1 (= main_~v2~0 0)) (.cse2 (= main_~j~0 0)) (.cse3 (= main_~i~0 0)) (.cse4 (= main_~v4~0 0)) (.cse5 (= main_~v1~0 0)) (.cse6 (= main_~v3~0 0))) (or (and (= main_~v5~0 0) .cse0 .cse1 .cse2 (= main_~l~0 0) .cse3 .cse4 .cse5 .cse6) (and (= main_~v5~0 1) .cse0 .cse1 .cse2 (= (+ (- 1) main_~l~0) 0) .cse3 .cse4 (< (mod (+ main_~l~0 4294967295) 4294967296) (mod main_~n~0 4294967296)) .cse5 .cse6))) [2022-03-20 19:07:25,886 INFO L878 garLoopResultBuilder]: At program point L20(line 20) the Hoare annotation is: (and (= main_~v5~0 0) (= main_~k~0 0) (= main_~v2~0 0) (= main_~j~0 0) (= main_~l~0 0) (= main_~i~0 0) (= main_~v4~0 0) (= main_~v1~0 0) (= main_~v3~0 0)) [2022-03-20 19:07:25,886 INFO L878 garLoopResultBuilder]: At program point L33(lines 33 38) the Hoare annotation is: false [2022-03-20 19:07:25,886 INFO L878 garLoopResultBuilder]: At program point L29(lines 29 38) the Hoare annotation is: false [2022-03-20 19:07:25,886 INFO L878 garLoopResultBuilder]: At program point L25(lines 25 38) the Hoare annotation is: false [2022-03-20 19:07:25,886 INFO L885 garLoopResultBuilder]: At program point L21-2(lines 21 41) the Hoare annotation is: true [2022-03-20 19:07:25,886 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 16 43) the Hoare annotation is: true [2022-03-20 19:07:25,886 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 16 43) the Hoare annotation is: true [2022-03-20 19:07:25,887 INFO L878 garLoopResultBuilder]: At program point L35(lines 35 38) the Hoare annotation is: false [2022-03-20 19:07:25,887 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-03-20 19:07:25,887 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-20 19:07:25,887 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-03-20 19:07:25,887 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-03-20 19:07:25,887 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-20 19:07:25,887 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-20 19:07:25,887 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-03-20 19:07:25,887 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 8 13) the Hoare annotation is: true [2022-03-20 19:07:25,887 INFO L878 garLoopResultBuilder]: At program point L10(line 10) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (not (< 0 (mod main_~n~0 4294967296)))) [2022-03-20 19:07:25,888 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 8 13) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (not (< 0 (mod main_~n~0 4294967296)))) [2022-03-20 19:07:25,888 INFO L878 garLoopResultBuilder]: At program point L9(lines 9 11) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (not (< 0 (mod main_~n~0 4294967296)))) [2022-03-20 19:07:25,888 INFO L878 garLoopResultBuilder]: At program point L9-2(lines 8 13) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (not (< 0 (mod main_~n~0 4294967296)))) [2022-03-20 19:07:25,888 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (not (< 0 (mod main_~n~0 4294967296)))) [2022-03-20 19:07:25,890 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-03-20 19:07:25,892 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 19:07:25,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 07:07:25 BoogieIcfgContainer [2022-03-20 19:07:25,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 19:07:25,906 INFO L158 Benchmark]: Toolchain (without parser) took 37218.46ms. Allocated memory was 166.7MB in the beginning and 204.5MB in the end (delta: 37.7MB). Free memory was 116.1MB in the beginning and 78.4MB in the end (delta: 37.8MB). Peak memory consumption was 76.1MB. Max. memory is 8.0GB. [2022-03-20 19:07:25,906 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 166.7MB. Free memory was 132.6MB in the beginning and 132.5MB in the end (delta: 71.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 19:07:25,906 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.93ms. Allocated memory was 166.7MB in the beginning and 204.5MB in the end (delta: 37.7MB). Free memory was 115.9MB in the beginning and 180.8MB in the end (delta: -64.9MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. [2022-03-20 19:07:25,907 INFO L158 Benchmark]: Boogie Preprocessor took 37.03ms. Allocated memory is still 204.5MB. Free memory was 180.8MB in the beginning and 179.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-20 19:07:25,907 INFO L158 Benchmark]: RCFGBuilder took 9064.73ms. Allocated memory is still 204.5MB. Free memory was 179.4MB in the beginning and 166.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-20 19:07:25,907 INFO L158 Benchmark]: TraceAbstraction took 27831.63ms. Allocated memory is still 204.5MB. Free memory was 166.2MB in the beginning and 78.4MB in the end (delta: 87.8MB). Peak memory consumption was 89.3MB. Max. memory is 8.0GB. [2022-03-20 19:07:25,908 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 166.7MB. Free memory was 132.6MB in the beginning and 132.5MB in the end (delta: 71.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 280.93ms. Allocated memory was 166.7MB in the beginning and 204.5MB in the end (delta: 37.7MB). Free memory was 115.9MB in the beginning and 180.8MB in the end (delta: -64.9MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.03ms. Allocated memory is still 204.5MB. Free memory was 180.8MB in the beginning and 179.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 9064.73ms. Allocated memory is still 204.5MB. Free memory was 179.4MB in the beginning and 166.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 27831.63ms. Allocated memory is still 204.5MB. Free memory was 166.2MB in the beginning and 78.4MB in the end (delta: 87.8MB). Peak memory consumption was 89.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 10]: 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, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 24.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 24.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 22.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 32 mSDtfsCounter, 192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 40 PreInvPairs, 58 NumberOfFragments, 294 HoareAnnotationTreeSize, 40 FomulaSimplifications, 22 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 154 FormulaSimplificationTreeSizeReductionInter, 0.4s 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: 21]: Loop Invariant Derived loop invariant: ((((((((v5 == 0 && k == 0) && v2 == 0) && j == 0) && l == 0) && i == 0) && v4 == 0) && v1 == 0) && v3 == 0) || (((((((((v5 == 1 && k == 0) && v2 == 0) && j == 0) && -1 + l == 0) && i == 0) && v4 == 0) && (l + 4294967295) % 4294967296 < n % 4294967296) && v1 == 0) && v3 == 0) - ProcedureContractResult [Line: 16]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 8]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: (!(\old(cond) == 1) || \old(cond) == cond) || !(0 < n % 4294967296) RESULT: Ultimate proved your program to be correct! [2022-03-20 19:07:25,956 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...