/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 03:21:47,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 03:21:47,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 03:21:47,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 03:21:47,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 03:21:47,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 03:21:47,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 03:21:47,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 03:21:47,275 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 03:21:47,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 03:21:47,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 03:21:47,276 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 03:21:47,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 03:21:47,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 03:21:47,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 03:21:47,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 03:21:47,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 03:21:47,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 03:21:47,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 03:21:47,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 03:21:47,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 03:21:47,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 03:21:47,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 03:21:47,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 03:21:47,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 03:21:47,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 03:21:47,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:21:47,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 03:21:47,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 03:21:47,280 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 03:21:47,280 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 03:21:47,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 03:21:47,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 03:21:47,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 03:21:47,537 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 03:21:47,539 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 03:21:47,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c [2022-03-20 03:21:47,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1d18f917/afb2d17df81147e9a24b3ef3551e08be/FLAGb71389bff [2022-03-20 03:21:47,997 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 03:21:47,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c [2022-03-20 03:21:48,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1d18f917/afb2d17df81147e9a24b3ef3551e08be/FLAGb71389bff [2022-03-20 03:21:48,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1d18f917/afb2d17df81147e9a24b3ef3551e08be [2022-03-20 03:21:48,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 03:21:48,415 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 03:21:48,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 03:21:48,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 03:21:48,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 03:21:48,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:21:48" (1/1) ... [2022-03-20 03:21:48,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a186a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:21:48, skipping insertion in model container [2022-03-20 03:21:48,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:21:48" (1/1) ... [2022-03-20 03:21:48,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 03:21:48,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 03:21:48,563 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/while_infinite_loop_3.c[333,346] [2022-03-20 03:21:48,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:21:48,591 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 03:21:48,601 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/while_infinite_loop_3.c[333,346] [2022-03-20 03:21:48,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:21:48,613 INFO L208 MainTranslator]: Completed translation [2022-03-20 03:21:48,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:21:48 WrapperNode [2022-03-20 03:21:48,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 03:21:48,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 03:21:48,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 03:21:48,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 03:21:48,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:21:48" (1/1) ... [2022-03-20 03:21:48,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:21:48" (1/1) ... [2022-03-20 03:21:48,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:21:48" (1/1) ... [2022-03-20 03:21:48,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:21:48" (1/1) ... [2022-03-20 03:21:48,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:21:48" (1/1) ... [2022-03-20 03:21:48,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:21:48" (1/1) ... [2022-03-20 03:21:48,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:21:48" (1/1) ... [2022-03-20 03:21:48,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 03:21:48,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 03:21:48,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 03:21:48,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 03:21:48,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:21:48" (1/1) ... [2022-03-20 03:21:48,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:21:48,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:21:48,664 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 03:21:48,673 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 03:21:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 03:21:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 03:21:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 03:21:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 03:21:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2022-03-20 03:21:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 03:21:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 03:21:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 03:21:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 03:21:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 03:21:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 03:21:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2022-03-20 03:21:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 03:21:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 03:21:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 03:21:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 03:21:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 03:21:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 03:21:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 03:21:48,755 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 03:21:48,757 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 03:21:48,864 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 03:21:48,869 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 03:21:48,869 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-20 03:21:48,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:21:48 BoogieIcfgContainer [2022-03-20 03:21:48,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 03:21:48,871 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 03:21:48,871 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 03:21:48,872 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 03:21:48,875 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:21:48" (1/1) ... [2022-03-20 03:21:48,877 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 03:21:48,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 03:21:48 BasicIcfg [2022-03-20 03:21:48,892 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 03:21:48,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 03:21:48,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 03:21:48,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 03:21:48,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 03:21:48" (1/4) ... [2022-03-20 03:21:48,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7014da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:21:48, skipping insertion in model container [2022-03-20 03:21:48,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:21:48" (2/4) ... [2022-03-20 03:21:48,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7014da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:21:48, skipping insertion in model container [2022-03-20 03:21:48,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:21:48" (3/4) ... [2022-03-20 03:21:48,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7014da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 03:21:48, skipping insertion in model container [2022-03-20 03:21:48,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 03:21:48" (4/4) ... [2022-03-20 03:21:48,898 INFO L111 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_3.cJordan [2022-03-20 03:21:48,906 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 03:21:48,906 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 03:21:48,949 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 03:21:48,955 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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 03:21:48,955 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 03:21:48,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 12 states have (on average 1.5) internal successors, (18), 14 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-03-20 03:21:48,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-03-20 03:21:48,971 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:21:48,971 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:21:48,972 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:21:48,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:21:48,976 INFO L85 PathProgramCache]: Analyzing trace with hash -459487812, now seen corresponding path program 1 times [2022-03-20 03:21:48,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:21:48,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186819778] [2022-03-20 03:21:48,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:21:48,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:21:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:21:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:21:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:21:49,104 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 03:21:49,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:21:49,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186819778] [2022-03-20 03:21:49,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186819778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:21:49,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:21:49,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 03:21:49,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59763253] [2022-03-20 03:21:49,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:21:49,112 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 03:21:49,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:21:49,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 03:21:49,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 03:21:49,135 INFO L87 Difference]: Start difference. First operand has 23 states, 12 states have (on average 1.5) internal successors, (18), 14 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 03:21:49,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:21:49,186 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-03-20 03:21:49,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 03:21:49,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 10 [2022-03-20 03:21:49,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:21:49,207 INFO L225 Difference]: With dead ends: 19 [2022-03-20 03:21:49,207 INFO L226 Difference]: Without dead ends: 19 [2022-03-20 03:21:49,208 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 03:21:49,211 INFO L913 BasicCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:21:49,212 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 20 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 03:21:49,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-03-20 03:21:49,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-03-20 03:21:49,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 03:21:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-03-20 03:21:49,262 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2022-03-20 03:21:49,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:21:49,263 INFO L478 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-03-20 03:21:49,264 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 03:21:49,264 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-03-20 03:21:49,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-20 03:21:49,266 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:21:49,266 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:21:49,266 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 03:21:49,267 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:21:49,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:21:49,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2132896698, now seen corresponding path program 1 times [2022-03-20 03:21:49,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:21:49,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983288189] [2022-03-20 03:21:49,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:21:49,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:21:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:21:49,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:21:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:21:49,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 03:21:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:21:49,441 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 03:21:49,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:21:49,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983288189] [2022-03-20 03:21:49,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983288189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:21:49,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:21:49,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 03:21:49,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481755498] [2022-03-20 03:21:49,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:21:49,443 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 03:21:49,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:21:49,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 03:21:49,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-20 03:21:49,445 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-03-20 03:21:49,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:21:49,542 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-03-20 03:21:49,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 03:21:49,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-03-20 03:21:49,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:21:49,544 INFO L225 Difference]: With dead ends: 15 [2022-03-20 03:21:49,544 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 03:21:49,548 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-03-20 03:21:49,549 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:21:49,550 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 24 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 03:21:49,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 03:21:49,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 03:21:49,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-20 03:21:49,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 03:21:49,553 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-03-20 03:21:49,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:21:49,555 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 03:21:49,556 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-03-20 03:21:49,556 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 03:21:49,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 03:21:49,558 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 03:21:49,559 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 03:21:49,561 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-20 03:21:49,562 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 03:21:49,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 03:21:49 BasicIcfg [2022-03-20 03:21:49,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 03:21:49,566 INFO L158 Benchmark]: Toolchain (without parser) took 1149.95ms. Allocated memory was 197.1MB in the beginning and 259.0MB in the end (delta: 61.9MB). Free memory was 142.7MB in the beginning and 186.3MB in the end (delta: -43.6MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB. [2022-03-20 03:21:49,566 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 03:21:49,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.66ms. Allocated memory was 197.1MB in the beginning and 259.0MB in the end (delta: 61.9MB). Free memory was 142.5MB in the beginning and 229.6MB in the end (delta: -87.1MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-03-20 03:21:49,567 INFO L158 Benchmark]: Boogie Preprocessor took 20.94ms. Allocated memory is still 259.0MB. Free memory was 229.6MB in the beginning and 228.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 03:21:49,567 INFO L158 Benchmark]: RCFGBuilder took 234.53ms. Allocated memory is still 259.0MB. Free memory was 228.2MB in the beginning and 219.2MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-20 03:21:49,568 INFO L158 Benchmark]: IcfgTransformer took 21.10ms. Allocated memory is still 259.0MB. Free memory was 219.2MB in the beginning and 218.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 03:21:49,568 INFO L158 Benchmark]: TraceAbstraction took 671.49ms. Allocated memory is still 259.0MB. Free memory was 217.5MB in the beginning and 186.3MB in the end (delta: 31.3MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-03-20 03:21:49,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 195.66ms. Allocated memory was 197.1MB in the beginning and 259.0MB in the end (delta: 61.9MB). Free memory was 142.5MB in the beginning and 229.6MB in the end (delta: -87.1MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.94ms. Allocated memory is still 259.0MB. Free memory was 229.6MB in the beginning and 228.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 234.53ms. Allocated memory is still 259.0MB. Free memory was 228.2MB in the beginning and 219.2MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 21.10ms. Allocated memory is still 259.0MB. Free memory was 219.2MB in the beginning and 218.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 671.49ms. Allocated memory is still 259.0MB. Free memory was 217.5MB in the beginning and 186.3MB in the end (delta: 31.3MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 29 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-20 03:21:49,615 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...