/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_11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 14:51:43,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 14:51:43,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 14:51:43,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 14:51:43,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 14:51:43,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 14:51:43,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 14:51:43,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 14:51:43,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 14:51:43,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 14:51:43,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 14:51:43,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 14:51:43,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 14:51:43,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 14:51:43,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 14:51:43,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 14:51:43,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 14:51:43,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 14:51:43,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 14:51:43,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 14:51:43,186 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 14:51:43,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 14:51:43,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 14:51:43,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 14:51:43,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 14:51:43,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 14:51:43,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 14:51:43,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 14:51:43,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 14:51:43,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 14:51:43,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-06 14:51:43,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-06 14:51:43,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-06 14:51:43,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-06 14:51:43,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-06 14:51:43,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-06 14:51:43,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-06 14:51:43,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-06 14:51:43,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-06 14:51:43,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 14:51:43,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 14:51:43,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 14:51:43,209 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 14:51:43,217 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 14:51:43,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 14:51:43,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 14:51:43,218 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 14:51:43,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 14:51:43,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 14:51:43,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 14:51:43,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 14:51:43,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 14:51:43,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 14:51:43,219 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 14:51:43,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 14:51:43,219 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 14:51:43,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 14:51:43,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 14:51:43,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 14:51:43,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 14:51:43,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 14:51:43,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 14:51:43,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 14:51:43,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-06 14:51:43,220 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-06 14:51:43,220 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-06 14:51:43,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 14:51:43,220 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-06 14:51:43,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 14:51:43,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 14:51:43,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 14:51:43,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 14:51:43,424 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 14:51:43,425 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 14:51:43,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/mono-crafted_11.c [2022-04-06 14:51:43,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab84980ce/35c732e3f4fc4afeb229036489bad6b8/FLAG253f55b7b [2022-04-06 14:51:43,810 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 14:51:43,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/mono-crafted_11.c [2022-04-06 14:51:43,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab84980ce/35c732e3f4fc4afeb229036489bad6b8/FLAG253f55b7b [2022-04-06 14:51:43,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab84980ce/35c732e3f4fc4afeb229036489bad6b8 [2022-04-06 14:51:43,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 14:51:43,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-06 14:51:43,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 14:51:43,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 14:51:43,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 14:51:43,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:51:43" (1/1) ... [2022-04-06 14:51:43,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d0cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:43, skipping insertion in model container [2022-04-06 14:51:43,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:51:43" (1/1) ... [2022-04-06 14:51:43,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 14:51:43,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 14:51:43,993 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_11.c[319,332] [2022-04-06 14:51:44,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 14:51:44,023 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 14:51:44,052 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_11.c[319,332] [2022-04-06 14:51:44,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 14:51:44,064 INFO L208 MainTranslator]: Completed translation [2022-04-06 14:51:44,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:44 WrapperNode [2022-04-06 14:51:44,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 14:51:44,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 14:51:44,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 14:51:44,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 14:51:44,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:44" (1/1) ... [2022-04-06 14:51:44,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:44" (1/1) ... [2022-04-06 14:51:44,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:44" (1/1) ... [2022-04-06 14:51:44,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:44" (1/1) ... [2022-04-06 14:51:44,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:44" (1/1) ... [2022-04-06 14:51:44,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:44" (1/1) ... [2022-04-06 14:51:44,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:44" (1/1) ... [2022-04-06 14:51:44,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 14:51:44,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 14:51:44,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 14:51:44,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 14:51:44,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:44" (1/1) ... [2022-04-06 14:51:44,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 14:51:44,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:51:44,139 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 14:51:44,172 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 14:51:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 14:51:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 14:51:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 14:51:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-06 14:51:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 14:51:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 14:51:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 14:51:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 14:51:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 14:51:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-06 14:51:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 14:51:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 14:51:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 14:51:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 14:51:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 14:51:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 14:51:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 14:51:44,228 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 14:51:44,230 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 14:51:44,329 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 14:51:44,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 14:51:44,332 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 14:51:44,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:51:44 BoogieIcfgContainer [2022-04-06 14:51:44,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 14:51:44,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 14:51:44,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 14:51:44,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 14:51:44,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 02:51:43" (1/3) ... [2022-04-06 14:51:44,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7100a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:51:44, skipping insertion in model container [2022-04-06 14:51:44,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:51:44" (2/3) ... [2022-04-06 14:51:44,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7100a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:51:44, skipping insertion in model container [2022-04-06 14:51:44,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:51:44" (3/3) ... [2022-04-06 14:51:44,357 INFO L111 eAbstractionObserver]: Analyzing ICFG mono-crafted_11.c [2022-04-06 14:51:44,360 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-06 14:51:44,360 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 14:51:44,410 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 14:51:44,415 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 14:51:44,415 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 14:51:44,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 14:51:44,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-06 14:51:44,440 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:51:44,441 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:51:44,441 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:51:44,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:51:44,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1325153485, now seen corresponding path program 1 times [2022-04-06 14:51:44,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:51:44,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [610044438] [2022-04-06 14:51:44,467 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:51:44,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1325153485, now seen corresponding path program 2 times [2022-04-06 14:51:44,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:51:44,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087197802] [2022-04-06 14:51:44,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:51:44,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:51:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:51:44,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:51:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:51:44,598 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 14:51:44,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:51:44,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087197802] [2022-04-06 14:51:44,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087197802] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:51:44,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:51:44,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-06 14:51:44,606 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:51:44,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [610044438] [2022-04-06 14:51:44,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [610044438] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:51:44,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:51:44,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-06 14:51:44,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922354944] [2022-04-06 14:51:44,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:51:44,611 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-06 14:51:44,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:51:44,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-06 14:51:44,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-06 14:51:44,633 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 14:51:44,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:51:44,668 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-04-06 14:51:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-06 14:51:44,673 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 14:51:44,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:51:44,679 INFO L225 Difference]: With dead ends: 32 [2022-04-06 14:51:44,679 INFO L226 Difference]: Without dead ends: 13 [2022-04-06 14:51:44,681 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 14:51:44,684 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 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 14:51:44,685 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 14:51:44,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-06 14:51:44,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-06 14:51:44,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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 14:51:44,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-04-06 14:51:44,708 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2022-04-06 14:51:44,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:51:44,709 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-04-06 14:51:44,709 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 14:51:44,710 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-04-06 14:51:44,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-06 14:51:44,710 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:51:44,710 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:51:44,711 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 14:51:44,711 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:51:44,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:51:44,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1315918275, now seen corresponding path program 1 times [2022-04-06 14:51:44,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:51:44,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [911952883] [2022-04-06 14:51:44,713 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:51:44,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1315918275, now seen corresponding path program 2 times [2022-04-06 14:51:44,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:51:44,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830145267] [2022-04-06 14:51:44,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:51:44,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:51:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:51:44,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:51:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:51:44,831 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 14:51:44,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:51:44,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830145267] [2022-04-06 14:51:44,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830145267] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:51:44,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:51:44,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 14:51:44,832 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:51:44,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [911952883] [2022-04-06 14:51:44,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [911952883] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:51:44,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:51:44,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 14:51:44,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793530366] [2022-04-06 14:51:44,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:51:44,833 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:51:44,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:51:44,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:51:44,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 14:51:44,834 INFO L87 Difference]: Start difference. First operand 13 states and 14 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 14:51:44,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:51:44,867 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2022-04-06 14:51:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:51:44,867 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 14:51:44,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:51:44,868 INFO L225 Difference]: With dead ends: 22 [2022-04-06 14:51:44,868 INFO L226 Difference]: Without dead ends: 15 [2022-04-06 14:51:44,868 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 14:51:44,869 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:51:44,870 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 19 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 14:51:44,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-04-06 14:51:44,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-04-06 14:51:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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 14:51:44,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-04-06 14:51:44,877 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2022-04-06 14:51:44,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:51:44,877 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-04-06 14:51:44,877 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 14:51:44,877 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-04-06 14:51:44,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-06 14:51:44,878 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:51:44,878 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:51:44,879 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 14:51:44,879 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:51:44,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:51:44,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1372110560, now seen corresponding path program 1 times [2022-04-06 14:51:44,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:51:44,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1295473137] [2022-04-06 14:51:44,997 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 14:51:44,998 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-04-06 14:51:44,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1209153456, now seen corresponding path program 1 times [2022-04-06 14:51:45,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:51:45,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808946047] [2022-04-06 14:51:45,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:51:45,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:51:45,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 14:51:45,007 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.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(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.(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.(AcceleratedInterpolation.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAcceleratedInterpolation.construct(IpTcStrategyModuleAcceleratedInterpolation.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java: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.(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.(TraceCheck.java:211) ... 40 more [2022-04-06 14:51:45,009 INFO L158 Benchmark]: Toolchain (without parser) took 1159.15ms. Allocated memory is still 213.9MB. Free memory was 188.0MB in the beginning and 136.1MB in the end (delta: 51.9MB). Peak memory consumption was 50.8MB. Max. memory is 8.0GB. [2022-04-06 14:51:45,009 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 213.9MB. Free memory is still 174.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 14:51:45,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.68ms. Allocated memory is still 213.9MB. Free memory was 187.8MB in the beginning and 187.1MB in the end (delta: 712.6kB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. [2022-04-06 14:51:45,010 INFO L158 Benchmark]: Boogie Preprocessor took 25.57ms. Allocated memory is still 213.9MB. Free memory was 187.1MB in the beginning and 185.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-06 14:51:45,010 INFO L158 Benchmark]: RCFGBuilder took 245.09ms. Allocated memory is still 213.9MB. Free memory was 185.6MB in the beginning and 175.9MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-06 14:51:45,011 INFO L158 Benchmark]: TraceAbstraction took 655.76ms. Allocated memory is still 213.9MB. Free memory was 175.4MB in the beginning and 136.1MB in the end (delta: 39.3MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2022-04-06 14:51:45,012 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 213.9MB. Free memory is still 174.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 228.68ms. Allocated memory is still 213.9MB. Free memory was 187.8MB in the beginning and 187.1MB in the end (delta: 712.6kB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.57ms. Allocated memory is still 213.9MB. Free memory was 187.1MB in the beginning and 185.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 245.09ms. Allocated memory is still 213.9MB. Free memory was 185.6MB in the beginning and 175.9MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 655.76ms. Allocated memory is still 213.9MB. Free memory was 175.4MB in the beginning and 136.1MB in the end (delta: 39.3MB). Peak memory consumption was 39.8MB. 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.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-04-06 14:51:45,051 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...