/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/array-examples/standard_compare_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:10:36,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:10:36,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:10:36,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 23:10:36,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 23:10:36,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 23:10:36,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 23:10:36,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 23:10:36,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 23:10:36,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 23:10:36,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 23:10:36,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 23:10:36,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:10:36,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:10:36,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:10:36,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:10:36,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:10:36,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:10:36,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:10:36,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:10:36,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:10:36,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:10:36,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:10:36,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:10:36,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:10:36,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:10:36,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:10:36,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:10:36,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-01-31 23:10:36,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:10:36,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:10:36,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:10:36,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:10:36,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:10:36,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:10:36,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:10:36,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:10:36,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:10:36,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:10:36,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:10:36,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:10:36,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:10:36,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:10:36,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:10:36,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:10:36,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:10:36,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:10:36,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:10:36,793 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:10:36,793 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:10:36,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:10:37,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:10:37,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:10:37,011 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:10:37,012 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:10:37,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_compare_ground.i [2022-01-31 23:10:37,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0230cb94a/feb04a60452540a58cde4b713b561ba7/FLAG004e53f8a [2022-01-31 23:10:37,430 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:10:37,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_compare_ground.i [2022-01-31 23:10:37,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0230cb94a/feb04a60452540a58cde4b713b561ba7/FLAG004e53f8a [2022-01-31 23:10:37,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0230cb94a/feb04a60452540a58cde4b713b561ba7 [2022-01-31 23:10:37,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:10:37,468 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:10:37,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:10:37,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:10:37,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:10:37,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:10:37" (1/1) ... [2022-01-31 23:10:37,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ebd56bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:10:37, skipping insertion in model container [2022-01-31 23:10:37,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:10:37" (1/1) ... [2022-01-31 23:10:37,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:10:37,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:10:37,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_compare_ground.i[816,829] [2022-01-31 23:10:37,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:10:37,615 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:10:37,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_compare_ground.i[816,829] [2022-01-31 23:10:37,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:10:37,661 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:10:37,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:10:37 WrapperNode [2022-01-31 23:10:37,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:10:37,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:10:37,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:10:37,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:10:37,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:10:37" (1/1) ... [2022-01-31 23:10:37,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:10:37" (1/1) ... [2022-01-31 23:10:37,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:10:37" (1/1) ... [2022-01-31 23:10:37,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:10:37" (1/1) ... [2022-01-31 23:10:37,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:10:37" (1/1) ... [2022-01-31 23:10:37,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:10:37" (1/1) ... [2022-01-31 23:10:37,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:10:37" (1/1) ... [2022-01-31 23:10:37,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:10:37,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:10:37,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:10:37,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:10:37,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:10:37" (1/1) ... [2022-01-31 23:10:37,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:10:37,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:10:37,723 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) [2022-01-31 23:10:37,728 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 [2022-01-31 23:10:37,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:10:37,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:10:37,745 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:10:37,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 23:10:37,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:10:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:10:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:10:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-01-31 23:10:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-01-31 23:10:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:10:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:10:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 23:10:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 23:10:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:10:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:10:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:10:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:10:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:10:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:10:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:10:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:10:37,793 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:10:37,794 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:10:37,893 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:10:37,897 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:10:37,897 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-31 23:10:37,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:10:37 BoogieIcfgContainer [2022-01-31 23:10:37,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:10:37,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:10:37,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:10:37,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:10:37,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:10:37" (1/3) ... [2022-01-31 23:10:37,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7992ff18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:10:37, skipping insertion in model container [2022-01-31 23:10:37,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:10:37" (2/3) ... [2022-01-31 23:10:37,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7992ff18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:10:37, skipping insertion in model container [2022-01-31 23:10:37,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:10:37" (3/3) ... [2022-01-31 23:10:37,905 INFO L111 eAbstractionObserver]: Analyzing ICFG standard_compare_ground.i [2022-01-31 23:10:37,908 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:10:37,908 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:10:37,937 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:10:37,942 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, 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, mLoopAccelerationTechnique=QVASR [2022-01-31 23:10:37,942 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:10:37,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 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) [2022-01-31 23:10:37,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-31 23:10:37,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:10:37,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:10:37,957 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:10:37,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:10:37,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1708474480, now seen corresponding path program 1 times [2022-01-31 23:10:37,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:10:37,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168204776] [2022-01-31 23:10:37,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:10:37,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:10:38,006 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:10:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:10:38,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:10:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:10:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:10:38,099 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:10:38,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168204776] [2022-01-31 23:10:38,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [168204776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:10:38,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:10:38,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 23:10:38,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856310405] [2022-01-31 23:10:38,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:10:38,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 23:10:38,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:10:38,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 23:10:38,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 23:10:38,137 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-01-31 23:10:38,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:10:38,183 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2022-01-31 23:10:38,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 23:10:38,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 15 [2022-01-31 23:10:38,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:10:38,190 INFO L225 Difference]: With dead ends: 48 [2022-01-31 23:10:38,190 INFO L226 Difference]: Without dead ends: 23 [2022-01-31 23:10:38,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 23:10:38,196 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 23:10:38,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 34 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 23:10:38,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-01-31 23:10:38,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-01-31 23:10:38,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 23:10:38,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-01-31 23:10:38,222 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 15 [2022-01-31 23:10:38,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:10:38,223 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-01-31 23:10:38,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-01-31 23:10:38,223 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-01-31 23:10:38,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-31 23:10:38,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:10:38,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:10:38,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:10:38,224 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:10:38,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:10:38,225 INFO L85 PathProgramCache]: Analyzing trace with hash -626288193, now seen corresponding path program 1 times [2022-01-31 23:10:38,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:10:38,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64968504] [2022-01-31 23:10:38,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:10:38,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:10:38,232 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:10:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:10:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:10:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:10:38,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:10:38,284 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:10:38,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64968504] [2022-01-31 23:10:38,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [64968504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:10:38,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:10:38,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:10:38,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681348191] [2022-01-31 23:10:38,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:10:38,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:10:38,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:10:38,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:10:38,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:10:38,286 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-01-31 23:10:38,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:10:38,346 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2022-01-31 23:10:38,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:10:38,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 15 [2022-01-31 23:10:38,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:10:38,347 INFO L225 Difference]: With dead ends: 40 [2022-01-31 23:10:38,347 INFO L226 Difference]: Without dead ends: 25 [2022-01-31 23:10:38,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:10:38,348 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 21 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 23:10:38,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 30 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 23:10:38,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-01-31 23:10:38,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-01-31 23:10:38,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 23:10:38,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-01-31 23:10:38,354 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2022-01-31 23:10:38,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:10:38,354 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-01-31 23:10:38,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-01-31 23:10:38,355 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-01-31 23:10:38,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-31 23:10:38,355 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:10:38,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:10:38,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:10:38,356 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:10:38,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:10:38,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1733903587, now seen corresponding path program 1 times [2022-01-31 23:10:38,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:10:38,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031753578] [2022-01-31 23:10:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:10:38,372 ERROR L252 FreeRefinementEngine]: Caught unknown exception: Undeclared function symbol (select Real Int) [2022-01-31 23:10:38,372 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2022-01-31 23:10:38,372 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (select Real Int) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:505) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:426) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.select(SmtUtils.java:1520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.termWithLocalSimplification(SmtUtils.java:1465) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.termWithLocalSimplification(SmtUtils.java:1374) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.convertApplicationTerm(SmtUtils.java:1363) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.convertApplicationTerm(Substitution.java:53) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.apply(Substitution.java:59) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.getUpdates(QvasrAbstractor.java:1229) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.computeAbstraction(QvasrAbstractor.java:106) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.summarizeLoop(QvasrSummarizer.java:133) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrLoopSummarization.getQvasrAcceleration(QvasrLoopSummarization.java:79) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorQvasr.accelerateLoop(AcceleratorQvasr.java:87) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:210) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-31 23:10:38,375 INFO L158 Benchmark]: Toolchain (without parser) took 907.71ms. Allocated memory was 190.8MB in the beginning and 261.1MB in the end (delta: 70.3MB). Free memory was 134.6MB in the beginning and 188.1MB in the end (delta: -53.5MB). Peak memory consumption was 16.1MB. Max. memory is 8.0GB. [2022-01-31 23:10:38,376 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 190.8MB. Free memory is still 150.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:10:38,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.89ms. Allocated memory was 190.8MB in the beginning and 261.1MB in the end (delta: 70.3MB). Free memory was 134.3MB in the beginning and 234.2MB in the end (delta: -99.9MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2022-01-31 23:10:38,380 INFO L158 Benchmark]: Boogie Preprocessor took 35.07ms. Allocated memory is still 261.1MB. Free memory was 234.2MB in the beginning and 232.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:10:38,380 INFO L158 Benchmark]: RCFGBuilder took 200.08ms. Allocated memory is still 261.1MB. Free memory was 232.6MB in the beginning and 220.6MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-31 23:10:38,380 INFO L158 Benchmark]: TraceAbstraction took 474.43ms. Allocated memory is still 261.1MB. Free memory was 220.0MB in the beginning and 188.1MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-01-31 23:10:38,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 190.8MB. Free memory is still 150.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 192.89ms. Allocated memory was 190.8MB in the beginning and 261.1MB in the end (delta: 70.3MB). Free memory was 134.3MB in the beginning and 234.2MB in the end (delta: -99.9MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.07ms. Allocated memory is still 261.1MB. Free memory was 234.2MB in the beginning and 232.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 200.08ms. Allocated memory is still 261.1MB. Free memory was 232.6MB in the beginning and 220.6MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 474.43ms. Allocated memory is still 261.1MB. Free memory was 220.0MB in the beginning and 188.1MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (select Real Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (select Real Int): de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:505) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-31 23:10:38,412 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...