/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/mono-crafted_8.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-34549b5
[2022-04-06 14:51:57,779 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-04-06 14:51:57,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-06 14:51:57,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-06 14:51:57,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-06 14:51:57,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-06 14:51:57,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-06 14:51:57,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-06 14:51:57,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-06 14:51:57,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-06 14:51:57,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-04-06 14:51:57,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-06 14:51:57,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-06 14:51:57,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-06 14:51:57,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-06 14:51:57,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-06 14:51:57,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-06 14:51:57,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-06 14:51:57,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-06 14:51:57,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-06 14:51:57,871 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-06 14:51:57,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-06 14:51:57,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-06 14:51:57,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-04-06 14:51:57,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-06 14:51:57,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-06 14:51:57,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-06 14:51:57,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-06 14:51:57,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-06 14:51:57,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-06 14:51:57,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-06 14:51:57,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-06 14:51:57,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-06 14:51:57,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-06 14:51:57,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-06 14:51:57,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-06 14:51:57,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-06 14:51:57,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-06 14:51:57,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-06 14:51:57,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-06 14:51:57,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-06 14:51:57,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-04-06 14:51:57,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf
[2022-04-06 14:51:57,897 INFO L113 SettingsManager]: Loading preferences was successful
[2022-04-06 14:51:57,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-06 14:51:57,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-06 14:51:57,898 INFO L138 SettingsManager]: * sizeof long=4
[2022-04-06 14:51:57,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-04-06 14:51:57,898 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-04-06 14:51:57,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-04-06 14:51:57,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-04-06 14:51:57,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-06 14:51:57,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-04-06 14:51:57,899 INFO L138 SettingsManager]: * sizeof long double=12
[2022-04-06 14:51:57,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-04-06 14:51:57,900 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-04-06 14:51:57,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-04-06 14:51:57,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-06 14:51:57,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-04-06 14:51:57,900 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-04-06 14:51:57,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-04-06 14:51:57,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-06 14:51:57,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-06 14:51:57,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2022-04-06 14:51:57,900 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION
[2022-04-06 14:51:57,901 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL
[2022-04-06 14:51:57,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-06 14:51:57,901 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN
[2022-04-06 14:51:57,901 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-04-06 14:51:58,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-06 14:51:58,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-06 14:51:58,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-06 14:51:58,106 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-04-06 14:51:58,107 INFO L275 PluginConnector]: CDTParser initialized
[2022-04-06 14:51:58,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/mono-crafted_8.c
[2022-04-06 14:51:58,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e11b3bd4/0627cd778a55433c9befe3a6718e94b5/FLAG25db0f2d0
[2022-04-06 14:51:58,490 INFO L306 CDTParser]: Found 1 translation units.
[2022-04-06 14:51:58,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/mono-crafted_8.c
[2022-04-06 14:51:58,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e11b3bd4/0627cd778a55433c9befe3a6718e94b5/FLAG25db0f2d0
[2022-04-06 14:51:58,941 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e11b3bd4/0627cd778a55433c9befe3a6718e94b5
[2022-04-06 14:51:58,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-06 14:51:58,945 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-04-06 14:51:58,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-06 14:51:58,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-06 14:51:58,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-06 14:51:58,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:51:58" (1/1) ...
[2022-04-06 14:51:58,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768969da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:58, skipping insertion in model container
[2022-04-06 14:51:58,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:51:58" (1/1) ...
[2022-04-06 14:51:58,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-04-06 14:51:58,970 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-04-06 14:51:59,088 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/mono-crafted_8.c[318,331]
[2022-04-06 14:51:59,094 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-06 14:51:59,099 INFO L203 MainTranslator]: Completed pre-run
[2022-04-06 14:51:59,105 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/mono-crafted_8.c[318,331]
[2022-04-06 14:51:59,107 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-06 14:51:59,114 INFO L208 MainTranslator]: Completed translation
[2022-04-06 14:51:59,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:59 WrapperNode
[2022-04-06 14:51:59,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-06 14:51:59,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-06 14:51:59,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-06 14:51:59,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-04-06 14:51:59,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:59" (1/1) ...
[2022-04-06 14:51:59,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:59" (1/1) ...
[2022-04-06 14:51:59,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:59" (1/1) ...
[2022-04-06 14:51:59,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:59" (1/1) ...
[2022-04-06 14:51:59,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:59" (1/1) ...
[2022-04-06 14:51:59,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:59" (1/1) ...
[2022-04-06 14:51:59,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:59" (1/1) ...
[2022-04-06 14:51:59,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-06 14:51:59,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-06 14:51:59,132 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-04-06 14:51:59,132 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-04-06 14:51:59,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:59" (1/1) ...
[2022-04-06 14:51:59,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-06 14:51:59,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 14:51:59,152 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)
[2022-04-06 14:51:59,154 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
[2022-04-06 14:51:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-04-06 14:51:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-06 14:51:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-04-06 14:51:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-04-06 14:51:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-04-06 14:51:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-04-06 14:51:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-04-06 14:51:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-04-06 14:51:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-06 14:51:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-04-06 14:51:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-04-06 14:51:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-04-06 14:51:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-06 14:51:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-06 14:51:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-04-06 14:51:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-04-06 14:51:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-06 14:51:59,228 INFO L234 CfgBuilder]: Building ICFG
[2022-04-06 14:51:59,229 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-06 14:51:59,328 INFO L275 CfgBuilder]: Performing block encoding
[2022-04-06 14:51:59,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-06 14:51:59,332 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-04-06 14:51:59,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:51:59 BoogieIcfgContainer
[2022-04-06 14:51:59,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-06 14:51:59,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-06 14:51:59,334 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-04-06 14:51:59,338 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-04-06 14:51:59,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 02:51:58" (1/3) ...
[2022-04-06 14:51:59,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f504229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:51:59, skipping insertion in model container
[2022-04-06 14:51:59,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:59" (2/3) ...
[2022-04-06 14:51:59,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f504229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:51:59, skipping insertion in model container
[2022-04-06 14:51:59,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:51:59" (3/3) ...
[2022-04-06 14:51:59,348 INFO L111 eAbstractionObserver]: Analyzing ICFG mono-crafted_8.c
[2022-04-06 14:51:59,352 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-04-06 14:51:59,352 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-04-06 14:51:59,397 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-06 14:51:59,407 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
[2022-04-06 14:51:59,407 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-04-06 14:51:59,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 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)
[2022-04-06 14:51:59,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-06 14:51:59,422 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 14:51:59,422 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 14:51:59,422 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 14:51:59,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 14:51:59,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2135496849, now seen corresponding path program 1 times
[2022-04-06 14:51:59,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-06 14:51:59,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [219614368]
[2022-04-06 14:51:59,458 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-04-06 14:51:59,458 INFO L85 PathProgramCache]: Analyzing trace with hash -2135496849, now seen corresponding path program 2 times
[2022-04-06 14:51:59,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 14:51:59,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789760121]
[2022-04-06 14:51:59,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 14:51:59,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 14:51:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 14:51:59,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-06 14:51:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 14:51:59,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 14:51:59,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 14:51:59,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789760121]
[2022-04-06 14:51:59,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789760121] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 14:51:59,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 14:51:59,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-04-06 14:51:59,607 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace
[2022-04-06 14:51:59,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [219614368]
[2022-04-06 14:51:59,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [219614368] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 14:51:59,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 14:51:59,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-04-06 14:51:59,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706740845]
[2022-04-06 14:51:59,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-06 14:51:59,612 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-06 14:51:59,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION
[2022-04-06 14:51:59,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-06 14:51:59,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-06 14:51:59,636 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 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 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2022-04-06 14:51:59,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 14:51:59,674 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions.
[2022-04-06 14:51:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-04-06 14:51:59,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 11
[2022-04-06 14:51:59,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 14:51:59,687 INFO L225 Difference]: With dead ends: 33
[2022-04-06 14:51:59,687 INFO L226 Difference]: Without dead ends: 14
[2022-04-06 14:51:59,689 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
[2022-04-06 14:51:59,692 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 24 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
[2022-04-06 14:51:59,693 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 24 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 14:51:59,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2022-04-06 14:51:59,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2022-04-06 14:51:59,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) 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)
[2022-04-06 14:51:59,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions.
[2022-04-06 14:51:59,720 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11
[2022-04-06 14:51:59,720 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 14:51:59,720 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions.
[2022-04-06 14:51:59,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2022-04-06 14:51:59,720 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions.
[2022-04-06 14:51:59,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-06 14:51:59,721 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 14:51:59,721 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 14:51:59,721 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-06 14:51:59,722 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 14:51:59,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 14:51:59,723 INFO L85 PathProgramCache]: Analyzing trace with hash -2145655580, now seen corresponding path program 1 times
[2022-04-06 14:51:59,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-06 14:51:59,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [834376120]
[2022-04-06 14:51:59,724 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-04-06 14:51:59,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2145655580, now seen corresponding path program 2 times
[2022-04-06 14:51:59,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 14:51:59,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890878492]
[2022-04-06 14:51:59,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 14:51:59,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 14:51:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 14:51:59,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-06 14:51:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 14:51:59,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 14:51:59,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 14:51:59,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890878492]
[2022-04-06 14:51:59,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890878492] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 14:51:59,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 14:51:59,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-06 14:51:59,874 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace
[2022-04-06 14:51:59,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [834376120]
[2022-04-06 14:51:59,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [834376120] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 14:51:59,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 14:51:59,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-06 14:51:59,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52000711]
[2022-04-06 14:51:59,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-06 14:51:59,876 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-04-06 14:51:59,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION
[2022-04-06 14:51:59,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-04-06 14:51:59,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-06 14:51:59,876 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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)
[2022-04-06 14:51:59,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 14:51:59,920 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions.
[2022-04-06 14:51:59,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-04-06 14:51:59,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 11
[2022-04-06 14:51:59,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 14:51:59,921 INFO L225 Difference]: With dead ends: 25
[2022-04-06 14:51:59,922 INFO L226 Difference]: Without dead ends: 17
[2022-04-06 14:51:59,923 INFO L912 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
[2022-04-06 14:51:59,925 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 14:51:59,927 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 19 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 14:51:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2022-04-06 14:51:59,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16.
[2022-04-06 14:51:59,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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)
[2022-04-06 14:51:59,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions.
[2022-04-06 14:51:59,937 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11
[2022-04-06 14:51:59,938 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 14:51:59,938 INFO L478 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions.
[2022-04-06 14:51:59,938 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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)
[2022-04-06 14:51:59,938 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions.
[2022-04-06 14:51:59,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-04-06 14:51:59,938 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 14:51:59,938 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 14:51:59,939 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-04-06 14:51:59,939 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 14:51:59,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 14:51:59,939 INFO L85 PathProgramCache]: Analyzing trace with hash -79339060, now seen corresponding path program 1 times
[2022-04-06 14:51:59,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-06 14:51:59,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1011523585]
[2022-04-06 14:52:00,090 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult
[2022-04-06 14:52:00,091 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE
[2022-04-06 14:52:00,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1115131409, now seen corresponding path program 1 times
[2022-04-06 14:52:00,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 14:52:00,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430703006]
[2022-04-06 14:52:00,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 14:52:00,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 14:52:00,114 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-04-06 14:52:00,115 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.<init>(TraceCheck.java:232)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.<init>(InterpolatingTraceCheck.java:91)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.<init>(InterpolatingTraceCheckCraig.java:89)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1)
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.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.runStrategy(AcceleratedInterpolationCore.java:300)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:289)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.<init>(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.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(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:412)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:154)
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)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms
at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:471)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertCodeBlocks.java:109)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:313)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.<init>(TraceCheck.java:211)
... 40 more
[2022-04-06 14:52:00,120 INFO L158 Benchmark]: Toolchain (without parser) took 1174.76ms. Allocated memory was 189.8MB in the beginning and 276.8MB in the end (delta: 87.0MB). Free memory was 135.3MB in the beginning and 249.0MB in the end (delta: -113.7MB). Peak memory consumption was 34.4MB. Max. memory is 8.0GB.
[2022-04-06 14:52:00,121 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 189.8MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-04-06 14:52:00,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.65ms. Allocated memory is still 189.8MB. Free memory was 135.1MB in the beginning and 160.3MB in the end (delta: -25.2MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB.
[2022-04-06 14:52:00,122 INFO L158 Benchmark]: Boogie Preprocessor took 15.67ms. Allocated memory is still 189.8MB. Free memory was 160.3MB in the beginning and 158.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-04-06 14:52:00,122 INFO L158 Benchmark]: RCFGBuilder took 201.62ms. Allocated memory is still 189.8MB. Free memory was 158.9MB in the beginning and 149.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
[2022-04-06 14:52:00,126 INFO L158 Benchmark]: TraceAbstraction took 785.61ms. Allocated memory was 189.8MB in the beginning and 276.8MB in the end (delta: 87.0MB). Free memory was 148.9MB in the beginning and 249.0MB in the end (delta: -100.1MB). Peak memory consumption was 47.4MB. Max. memory is 8.0GB.
[2022-04-06 14:52:00,129 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 189.8MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 164.65ms. Allocated memory is still 189.8MB. Free memory was 135.1MB in the beginning and 160.3MB in the end (delta: -25.2MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 15.67ms. Allocated memory is still 189.8MB. Free memory was 160.3MB in the beginning and 158.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 201.62ms. Allocated memory is still 189.8MB. Free memory was 158.9MB in the beginning and 149.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
* TraceAbstraction took 785.61ms. Allocated memory was 189.8MB in the beginning and 276.8MB in the end (delta: 87.0MB). Free memory was 148.9MB in the beginning and 249.0MB in the end (delta: -100.1MB). Peak memory consumption was 47.4MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.<init>(TraceCheck.java:232)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2022-04-06 14:52:00,151 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...