/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-5d317bd [2022-03-19 08:40:02,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 08:40:02,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 08:40:02,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-19 08:40:02,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 08:40:02,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 08:40:02,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 08:40:02,435 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-19 08:40:02,441 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 08:40:02,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 08:40:02,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 08:40:02,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 08:40:02,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 08:40:02,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 08:40:02,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 08:40:02,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 08:40:02,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 08:40:02,443 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 08:40:02,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 08:40:02,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 08:40:02,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 08:40:02,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-19 08:40:02,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 08:40:02,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 08:40:02,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 08:40:02,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-19 08:40:02,444 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-19 08:40:02,444 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-19 08:40:02,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 08:40:02,444 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-19 08:40:02,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 08:40:02,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 08:40:02,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 08:40:02,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 08:40:02,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 08:40:02,647 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 08:40:02,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c [2022-03-19 08:40:02,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2fcd689/c4d11a8a6d8141f9aa02148e86b08bc4/FLAG34da0d610 [2022-03-19 08:40:03,043 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 08:40:03,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt8.c [2022-03-19 08:40:03,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2fcd689/c4d11a8a6d8141f9aa02148e86b08bc4/FLAG34da0d610 [2022-03-19 08:40:03,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2fcd689/c4d11a8a6d8141f9aa02148e86b08bc4 [2022-03-19 08:40:03,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 08:40:03,058 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 08:40:03,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 08:40:03,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 08:40:03,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 08:40:03,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 08:40:03" (1/1) ... [2022-03-19 08:40:03,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19d25b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:40:03, skipping insertion in model container [2022-03-19 08:40:03,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 08:40:03" (1/1) ... [2022-03-19 08:40:03,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 08:40:03,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 08:40:03,236 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] [2022-03-19 08:40:03,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 08:40:03,263 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 08:40:03,272 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] [2022-03-19 08:40:03,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 08:40:03,292 INFO L208 MainTranslator]: Completed translation [2022-03-19 08:40:03,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:40:03 WrapperNode [2022-03-19 08:40:03,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 08:40:03,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 08:40:03,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 08:40:03,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 08:40:03,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:40:03" (1/1) ... [2022-03-19 08:40:03,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:40:03" (1/1) ... [2022-03-19 08:40:03,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:40:03" (1/1) ... [2022-03-19 08:40:03,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:40:03" (1/1) ... [2022-03-19 08:40:03,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:40:03" (1/1) ... [2022-03-19 08:40:03,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:40:03" (1/1) ... [2022-03-19 08:40:03,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:40:03" (1/1) ... [2022-03-19 08:40:03,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 08:40:03,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 08:40:03,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 08:40:03,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 08:40:03,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:40:03" (1/1) ... [2022-03-19 08:40:03,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 08:40:03,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 08:40:03,351 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) [2022-03-19 08:40:03,353 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 [2022-03-19 08:40:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 08:40:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 08:40:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 08:40:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-19 08:40:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-19 08:40:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 08:40:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 08:40:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 08:40:03,421 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 08:40:03,422 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 08:40:12,289 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 08:40:12,293 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 08:40:12,293 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 08:40:12,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 08:40:12 BoogieIcfgContainer [2022-03-19 08:40:12,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 08:40:12,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 08:40:12,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 08:40:12,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 08:40:12,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 08:40:03" (1/3) ... [2022-03-19 08:40:12,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143f43e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 08:40:12, skipping insertion in model container [2022-03-19 08:40:12,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:40:03" (2/3) ... [2022-03-19 08:40:12,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143f43e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 08:40:12, skipping insertion in model container [2022-03-19 08:40:12,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 08:40:12" (3/3) ... [2022-03-19 08:40:12,300 INFO L111 eAbstractionObserver]: Analyzing ICFG sumt8.c [2022-03-19 08:40:12,303 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-19 08:40:12,303 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 08:40:12,337 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 08:40:12,346 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 [2022-03-19 08:40:12,346 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 08:40:12,366 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) [2022-03-19 08:40:12,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-19 08:40:12,370 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 08:40:12,370 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 08:40:12,371 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 08:40:12,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 08:40:12,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1128394070, now seen corresponding path program 1 times [2022-03-19 08:40:12,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 08:40:12,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1766691194] [2022-03-19 08:40:12,411 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 08:40:12,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1128394070, now seen corresponding path program 2 times [2022-03-19 08:40:12,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 08:40:12,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424102677] [2022-03-19 08:40:12,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 08:40:12,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 08:40:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 08:40:12,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 08:40:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 08:40:12,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 08:40:12,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 08:40:12,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424102677] [2022-03-19 08:40:12,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424102677] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 08:40:12,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 08:40:12,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-19 08:40:12,973 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 08:40:12,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1766691194] [2022-03-19 08:40:12,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1766691194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 08:40:12,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 08:40:12,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-19 08:40:12,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435020545] [2022-03-19 08:40:12,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 08:40:12,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-19 08:40:12,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 08:40:12,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-19 08:40:12,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-03-19 08:40:12,997 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) [2022-03-19 08:40:15,281 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 [] [2022-03-19 08:40:17,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 08:40:19,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 08:40:21,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 08:40:23,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 08:40:26,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 08:40:28,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 08:40:30,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 08:40:32,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 08:40:34,742 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 [] [2022-03-19 08:40:34,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 08:40:34,929 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2022-03-19 08:40:34,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-19 08:40:34,931 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 [2022-03-19 08:40:34,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 08:40:34,935 INFO L225 Difference]: With dead ends: 66 [2022-03-19 08:40:34,936 INFO L226 Difference]: Without dead ends: 34 [2022-03-19 08:40:34,937 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-03-19 08:40:34,939 INFO L912 BasicCegarLoop]: 24 mSDtfsCounter, 57 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 14 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2022-03-19 08:40:34,940 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 55 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 124 Invalid, 9 Unknown, 0 Unchecked, 21.7s Time] [2022-03-19 08:40:34,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-03-19 08:40:34,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2022-03-19 08:40:34,965 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) [2022-03-19 08:40:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-03-19 08:40:34,967 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2022-03-19 08:40:34,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 08:40:34,967 INFO L478 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-03-19 08:40:34,968 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) [2022-03-19 08:40:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-03-19 08:40:34,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-19 08:40:34,968 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 08:40:34,968 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 08:40:34,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 08:40:34,969 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 08:40:34,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 08:40:34,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1294727378, now seen corresponding path program 1 times [2022-03-19 08:40:34,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 08:40:34,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1144355581] [2022-03-19 08:40:35,434 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-19 08:40:35,435 INFO L85 PathProgramCache]: Analyzing trace with hash 508503026, now seen corresponding path program 1 times [2022-03-19 08:40:35,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 08:40:35,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069230727] [2022-03-19 08:40:35,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 08:40:35,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 08:40:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 08:40:35,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 08:40:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 08:40:35,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 08:40:35,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 08:40:35,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069230727] [2022-03-19 08:40:35,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069230727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 08:40:35,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 08:40:35,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-19 08:40:36,060 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 08:40:36,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1144355581] [2022-03-19 08:40:36,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1144355581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 08:40:36,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 08:40:36,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-19 08:40:36,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679387499] [2022-03-19 08:40:36,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 08:40:36,062 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-19 08:40:36,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 08:40:36,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-19 08:40:36,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-03-19 08:40:36,063 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) [2022-03-19 08:40:36,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 08:40:36,299 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2022-03-19 08:40:36,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-19 08:40:36,299 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 [2022-03-19 08:40:36,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 08:40:36,300 INFO L225 Difference]: With dead ends: 32 [2022-03-19 08:40:36,300 INFO L226 Difference]: Without dead ends: 0 [2022-03-19 08:40:36,300 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2022-03-19 08:40:36,301 INFO L912 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 [2022-03-19 08:40:36,301 INFO L913 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] [2022-03-19 08:40:36,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-19 08:40:36,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-19 08:40:36,303 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) [2022-03-19 08:40:36,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-19 08:40:36,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-03-19 08:40:36,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 08:40:36,303 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-19 08:40:36,303 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) [2022-03-19 08:40:36,303 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-19 08:40:36,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-19 08:40:36,305 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-19 08:40:36,305 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 08:40:36,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-19 08:40:36,542 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-03-19 08:40:36,542 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-03-19 08:40:36,542 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-03-19 08:40:36,542 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 5 7) no Hoare annotation was computed. [2022-03-19 08:40:36,542 INFO L882 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-03-19 08:40:36,542 INFO L882 garLoopResultBuilder]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2022-03-19 08:40:36,542 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-03-19 08:40:36,543 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)) [2022-03-19 08:40:36,543 INFO L878 garLoopResultBuilder]: At program point L31(lines 31 38) the Hoare annotation is: false [2022-03-19 08:40:36,543 INFO L878 garLoopResultBuilder]: At program point L27(lines 27 38) the Hoare annotation is: false [2022-03-19 08:40:36,543 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 16 43) the Hoare annotation is: true [2022-03-19 08:40:36,543 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)) [2022-03-19 08:40:36,543 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)) [2022-03-19 08:40:36,543 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))) [2022-03-19 08:40:36,543 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)) [2022-03-19 08:40:36,544 INFO L878 garLoopResultBuilder]: At program point L33(lines 33 38) the Hoare annotation is: false [2022-03-19 08:40:36,544 INFO L878 garLoopResultBuilder]: At program point L29(lines 29 38) the Hoare annotation is: false [2022-03-19 08:40:36,544 INFO L878 garLoopResultBuilder]: At program point L25(lines 25 38) the Hoare annotation is: false [2022-03-19 08:40:36,544 INFO L885 garLoopResultBuilder]: At program point L21-2(lines 21 41) the Hoare annotation is: true [2022-03-19 08:40:36,544 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 16 43) the Hoare annotation is: true [2022-03-19 08:40:36,544 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 16 43) the Hoare annotation is: true [2022-03-19 08:40:36,544 INFO L878 garLoopResultBuilder]: At program point L35(lines 35 38) the Hoare annotation is: false [2022-03-19 08:40:36,544 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-03-19 08:40:36,544 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|)) [2022-03-19 08:40:36,545 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-03-19 08:40:36,545 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-03-19 08:40:36,545 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-19 08:40:36,545 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-19 08:40:36,545 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-03-19 08:40:36,545 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 8 13) the Hoare annotation is: true [2022-03-19 08:40:36,545 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)))) [2022-03-19 08:40:36,545 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)))) [2022-03-19 08:40:36,545 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)))) [2022-03-19 08:40:36,545 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)))) [2022-03-19 08:40:36,546 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)))) [2022-03-19 08:40:36,548 INFO L718 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-03-19 08:40:36,549 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-19 08:40:36,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 08:40:36 BoogieIcfgContainer [2022-03-19 08:40:36,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-19 08:40:36,559 INFO L158 Benchmark]: Toolchain (without parser) took 33501.47ms. Allocated memory was 216.0MB in the beginning and 372.2MB in the end (delta: 156.2MB). Free memory was 162.9MB in the beginning and 228.6MB in the end (delta: -65.7MB). Peak memory consumption was 91.6MB. Max. memory is 8.0GB. [2022-03-19 08:40:36,559 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 216.0MB. Free memory is still 179.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 08:40:36,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.54ms. Allocated memory is still 216.0MB. Free memory was 162.6MB in the beginning and 192.1MB in the end (delta: -29.5MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. [2022-03-19 08:40:36,560 INFO L158 Benchmark]: Boogie Preprocessor took 24.65ms. Allocated memory is still 216.0MB. Free memory was 192.1MB in the beginning and 190.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-19 08:40:36,560 INFO L158 Benchmark]: RCFGBuilder took 8975.53ms. Allocated memory is still 216.0MB. Free memory was 190.4MB in the beginning and 178.5MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-19 08:40:36,560 INFO L158 Benchmark]: TraceAbstraction took 24263.55ms. Allocated memory was 216.0MB in the beginning and 372.2MB in the end (delta: 156.2MB). Free memory was 178.3MB in the beginning and 228.6MB in the end (delta: -50.3MB). Peak memory consumption was 107.0MB. Max. memory is 8.0GB. [2022-03-19 08:40:36,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 216.0MB. Free memory is still 179.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.54ms. Allocated memory is still 216.0MB. Free memory was 162.6MB in the beginning and 192.1MB in the end (delta: -29.5MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.65ms. Allocated memory is still 216.0MB. Free memory was 192.1MB in the beginning and 190.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 8975.53ms. Allocated memory is still 216.0MB. Free memory was 190.4MB in the beginning and 178.5MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 24263.55ms. Allocated memory was 216.0MB in the beginning and 372.2MB in the end (delta: 156.2MB). Free memory was 178.3MB in the beginning and 228.6MB in the end (delta: -50.3MB). Peak memory consumption was 107.0MB. 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: 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: 24.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 22.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 21.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 20.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 32 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s 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, 0.2s 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! [2022-03-19 08:40:36,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...