/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/sumt4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 19:05:32,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 19:05:32,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 19:05:32,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 19:05:32,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 19:05:32,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 19:05:32,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 19:05:32,363 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 19:05:32,369 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 19:05:32,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 19:05:32,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 19:05:32,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 19:05:32,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 19:05:32,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 19:05:32,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 19:05:32,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 19:05:32,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 19:05:32,371 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 19:05:32,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 19:05:32,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 19:05:32,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 19:05:32,372 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 19:05:32,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 19:05:32,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 19:05:32,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 19:05:32,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 19:05:32,372 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 19:05:32,372 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 19:05:32,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 19:05:32,373 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-20 19:05:32,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 19:05:32,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 19:05:32,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 19:05:32,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 19:05:32,542 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 19:05:32,543 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 19:05:32,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt4.c [2022-03-20 19:05:32,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c4959f54/b40f34f6dda3483582e4059dab416c8b/FLAG5a37173ec [2022-03-20 19:05:32,973 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 19:05:32,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt4.c [2022-03-20 19:05:32,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c4959f54/b40f34f6dda3483582e4059dab416c8b/FLAG5a37173ec [2022-03-20 19:05:32,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c4959f54/b40f34f6dda3483582e4059dab416c8b [2022-03-20 19:05:32,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 19:05:32,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 19:05:32,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 19:05:32,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 19:05:32,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 19:05:32,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:05:32" (1/1) ... [2022-03-20 19:05:32,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b3e9a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:05:32, skipping insertion in model container [2022-03-20 19:05:32,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:05:32" (1/1) ... [2022-03-20 19:05:33,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 19:05:33,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 19:05:33,123 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/sumt4.c[403,416] [2022-03-20 19:05:33,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 19:05:33,158 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 19:05:33,165 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/sumt4.c[403,416] [2022-03-20 19:05:33,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 19:05:33,177 INFO L208 MainTranslator]: Completed translation [2022-03-20 19:05:33,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:05:33 WrapperNode [2022-03-20 19:05:33,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 19:05:33,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 19:05:33,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 19:05:33,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 19:05:33,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:05:33" (1/1) ... [2022-03-20 19:05:33,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:05:33" (1/1) ... [2022-03-20 19:05:33,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:05:33" (1/1) ... [2022-03-20 19:05:33,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:05:33" (1/1) ... [2022-03-20 19:05:33,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:05:33" (1/1) ... [2022-03-20 19:05:33,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:05:33" (1/1) ... [2022-03-20 19:05:33,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:05:33" (1/1) ... [2022-03-20 19:05:33,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 19:05:33,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 19:05:33,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 19:05:33,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 19:05:33,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:05:33" (1/1) ... [2022-03-20 19:05:33,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 19:05:33,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 19:05:33,233 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 19:05:33,240 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 19:05:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 19:05:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 19:05:33,261 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 19:05:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 19:05:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 19:05:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 19:05:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 19:05:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 19:05:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 19:05:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 19:05:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 19:05:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 19:05:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-03-20 19:05:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 19:05:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 19:05:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 19:05:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 19:05:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 19:05:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 19:05:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 19:05:33,304 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 19:05:33,305 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 19:05:35,645 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 19:05:35,649 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 19:05:35,649 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 19:05:35,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:05:35 BoogieIcfgContainer [2022-03-20 19:05:35,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 19:05:35,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 19:05:35,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 19:05:35,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 19:05:35,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 07:05:32" (1/3) ... [2022-03-20 19:05:35,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a279db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:05:35, skipping insertion in model container [2022-03-20 19:05:35,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:05:33" (2/3) ... [2022-03-20 19:05:35,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a279db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:05:35, skipping insertion in model container [2022-03-20 19:05:35,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:05:35" (3/3) ... [2022-03-20 19:05:35,656 INFO L111 eAbstractionObserver]: Analyzing ICFG sumt4.c [2022-03-20 19:05:35,659 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 19:05:35,660 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 19:05:35,723 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 19:05:35,727 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 19:05:35,727 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 19:05:35,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 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 19:05:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-20 19:05:35,741 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 19:05:35,742 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 19:05:35,742 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 19:05:35,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 19:05:35,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1709511738, now seen corresponding path program 1 times [2022-03-20 19:05:35,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 19:05:35,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1710593668] [2022-03-20 19:05:35,758 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 19:05:35,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1709511738, now seen corresponding path program 2 times [2022-03-20 19:05:35,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 19:05:35,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408990796] [2022-03-20 19:05:35,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 19:05:35,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 19:05:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 19:05:36,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 19:05:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 19:05:36,221 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 19:05:36,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 19:05:36,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408990796] [2022-03-20 19:05:36,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408990796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 19:05:36,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 19:05:36,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 19:05:36,225 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 19:05:36,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1710593668] [2022-03-20 19:05:36,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1710593668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 19:05:36,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 19:05:36,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 19:05:36,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285537856] [2022-03-20 19:05:36,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 19:05:36,232 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 19:05:36,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 19:05:36,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 19:05:36,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 19:05:36,260 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 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 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 19:05:38,417 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 19:05:38,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 19:05:38,696 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2022-03-20 19:05:38,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 19:05:38,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-03-20 19:05:38,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 19:05:38,703 INFO L225 Difference]: With dead ends: 51 [2022-03-20 19:05:38,703 INFO L226 Difference]: Without dead ends: 19 [2022-03-20 19:05:38,705 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-03-20 19:05:38,707 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 36 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 19:05:38,708 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 41 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 73 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 19:05:38,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-03-20 19:05:38,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-03-20 19:05:38,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 19:05:38,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-03-20 19:05:38,736 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 12 [2022-03-20 19:05:38,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 19:05:38,736 INFO L478 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-03-20 19:05:38,737 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 19:05:38,737 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-03-20 19:05:38,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-20 19:05:38,737 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 19:05:38,737 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 19:05:38,738 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 19:05:38,738 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 19:05:38,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 19:05:38,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1996045709, now seen corresponding path program 1 times [2022-03-20 19:05:38,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 19:05:38,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1465538926] [2022-03-20 19:05:39,609 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 19:05:39,610 INFO L85 PathProgramCache]: Analyzing trace with hash -46561988, now seen corresponding path program 1 times [2022-03-20 19:05:39,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 19:05:39,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371604040] [2022-03-20 19:05:39,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 19:05:39,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 19:05:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 19:05:40,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 19:05:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 19:05:40,069 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 19:05:40,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 19:05:40,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371604040] [2022-03-20 19:05:40,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371604040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 19:05:40,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 19:05:40,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-20 19:05:40,242 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 19:05:40,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1465538926] [2022-03-20 19:05:40,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1465538926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 19:05:40,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 19:05:40,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 19:05:40,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339561249] [2022-03-20 19:05:40,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 19:05:40,243 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-20 19:05:40,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 19:05:40,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-20 19:05:40,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-03-20 19:05:40,244 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 13 states, 11 states have (on average 1.0) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 19:05:42,585 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 19:05:42,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 19:05:42,796 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2022-03-20 19:05:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 19:05:42,797 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 1.0) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-03-20 19:05:42,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 19:05:42,797 INFO L225 Difference]: With dead ends: 33 [2022-03-20 19:05:42,798 INFO L226 Difference]: Without dead ends: 23 [2022-03-20 19:05:42,798 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-03-20 19:05:42,799 INFO L913 BasicCegarLoop]: 13 mSDtfsCounter, 36 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 19:05:42,799 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 48 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 104 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 19:05:42,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-03-20 19:05:42,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-03-20 19:05:42,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 19:05:42,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-03-20 19:05:42,804 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 15 [2022-03-20 19:05:42,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 19:05:42,805 INFO L478 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-03-20 19:05:42,805 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 1.0) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 19:05:42,805 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-03-20 19:05:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-20 19:05:42,805 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 19:05:42,805 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 19:05:42,805 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 19:05:42,806 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 19:05:42,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 19:05:42,806 INFO L85 PathProgramCache]: Analyzing trace with hash -376560181, now seen corresponding path program 1 times [2022-03-20 19:05:42,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 19:05:42,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1019333926] [2022-03-20 19:05:43,784 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractionJoin.removeLastColumnRational(QvasrAbstractionJoin.java:428) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractionJoin.pushout(QvasrAbstractionJoin.java:181) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractionJoin.join(QvasrAbstractionJoin.java:116) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.summarizeLoop(QvasrSummarizer.java:130) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrLoopSummarization.getQvasrAcceleration(QvasrLoopSummarization.java:87) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorQvasr.accelerateLoop(AcceleratorQvasr.java:91) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:246) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAcceleratedInterpolation.construct(IpTcStrategyModuleAcceleratedInterpolation.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-20 19:05:43,787 INFO L158 Benchmark]: Toolchain (without parser) took 10795.35ms. Allocated memory was 201.3MB in the beginning and 339.7MB in the end (delta: 138.4MB). Free memory was 145.5MB in the beginning and 208.2MB in the end (delta: -62.7MB). Peak memory consumption was 76.0MB. Max. memory is 8.0GB. [2022-03-20 19:05:43,787 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 19:05:43,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.02ms. Allocated memory was 201.3MB in the beginning and 339.7MB in the end (delta: 138.4MB). Free memory was 145.3MB in the beginning and 311.0MB in the end (delta: -165.7MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. [2022-03-20 19:05:43,788 INFO L158 Benchmark]: Boogie Preprocessor took 30.57ms. Allocated memory is still 339.7MB. Free memory was 311.0MB in the beginning and 309.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 19:05:43,788 INFO L158 Benchmark]: RCFGBuilder took 2441.64ms. Allocated memory is still 339.7MB. Free memory was 309.4MB in the beginning and 299.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-20 19:05:43,788 INFO L158 Benchmark]: TraceAbstraction took 8134.61ms. Allocated memory is still 339.7MB. Free memory was 298.5MB in the beginning and 208.2MB in the end (delta: 90.3MB). Peak memory consumption was 90.2MB. Max. memory is 8.0GB. [2022-03-20 19:05:43,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 185.02ms. Allocated memory was 201.3MB in the beginning and 339.7MB in the end (delta: 138.4MB). Free memory was 145.3MB in the beginning and 311.0MB in the end (delta: -165.7MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.57ms. Allocated memory is still 339.7MB. Free memory was 311.0MB in the beginning and 309.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 2441.64ms. Allocated memory is still 339.7MB. Free memory was 309.4MB in the beginning and 299.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 8134.61ms. Allocated memory is still 339.7MB. Free memory was 298.5MB in the beginning and 208.2MB in the end (delta: 90.3MB). Peak memory consumption was 90.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0: de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractionJoin.removeLastColumnRational(QvasrAbstractionJoin.java:428) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-20 19:05:43,830 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...