/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loop-invgen/large_const.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 12:31:09,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 12:31:09,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 12:31:09,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-15 12:31:09,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-15 12:31:09,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-15 12:31:09,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-15 12:31:09,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-15 12:31:09,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-15 12:31:09,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-15 12:31:09,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-15 12:31:09,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-15 12:31:09,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-15 12:31:09,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-15 12:31:09,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-15 12:31:09,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-15 12:31:09,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-15 12:31:09,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-15 12:31:09,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-15 12:31:09,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-15 12:31:09,929 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-15 12:31:09,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-15 12:31:09,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-15 12:31:09,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-15 12:31:09,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-15 12:31:09,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-15 12:31:09,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-15 12:31:09,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-15 12:31:09,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-15 12:31:09,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-15 12:31:09,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-15 12:31:09,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-15 12:31:09,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-15 12:31:09,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-15 12:31:09,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-15 12:31:09,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-15 12:31:09,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-15 12:31:09,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-15 12:31:09,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-15 12:31:09,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 12:31:09,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 12:31:09,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 12:31:09,954 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-15 12:31:09,962 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 12:31:09,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 12:31:09,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 12:31:09,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 12:31:09,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 12:31:09,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 12:31:09,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 12:31:09,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 12:31:09,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 12:31:09,964 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 12:31:09,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 12:31:09,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 12:31:09,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 12:31:09,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 12:31:09,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 12:31:09,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 12:31:09,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 12:31:09,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 12:31:09,966 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 12:31:09,966 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 12:31:09,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 12:31:09,966 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-15 12:31:09,966 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 12:31:10,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 12:31:10,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 12:31:10,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 12:31:10,156 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 12:31:10,157 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 12:31:10,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/large_const.i [2022-04-15 12:31:10,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8476d775/a635768fb3784877a55e24d1a55c840c/FLAGe8eb4efcb [2022-04-15 12:31:10,521 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 12:31:10,521 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/large_const.i [2022-04-15 12:31:10,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8476d775/a635768fb3784877a55e24d1a55c840c/FLAGe8eb4efcb [2022-04-15 12:31:10,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8476d775/a635768fb3784877a55e24d1a55c840c [2022-04-15 12:31:10,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 12:31:10,972 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 12:31:10,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 12:31:10,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 12:31:10,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 12:31:10,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:31:10" (1/1) ... [2022-04-15 12:31:10,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714cac24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:31:10, skipping insertion in model container [2022-04-15 12:31:10,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:31:10" (1/1) ... [2022-04-15 12:31:10,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 12:31:10,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 12:31:11,164 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/large_const.i[893,906] [2022-04-15 12:31:11,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 12:31:11,180 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 12:31:11,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/large_const.i[893,906] [2022-04-15 12:31:11,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 12:31:11,200 INFO L208 MainTranslator]: Completed translation [2022-04-15 12:31:11,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:31:11 WrapperNode [2022-04-15 12:31:11,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 12:31:11,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 12:31:11,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 12:31:11,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 12:31:11,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:31:11" (1/1) ... [2022-04-15 12:31:11,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:31:11" (1/1) ... [2022-04-15 12:31:11,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:31:11" (1/1) ... [2022-04-15 12:31:11,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:31:11" (1/1) ... [2022-04-15 12:31:11,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:31:11" (1/1) ... [2022-04-15 12:31:11,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:31:11" (1/1) ... [2022-04-15 12:31:11,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:31:11" (1/1) ... [2022-04-15 12:31:11,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 12:31:11,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 12:31:11,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 12:31:11,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 12:31:11,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:31:11" (1/1) ... [2022-04-15 12:31:11,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 12:31:11,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 12:31:11,276 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) [2022-04-15 12:31:11,278 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 [2022-04-15 12:31:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 12:31:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 12:31:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 12:31:11,307 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-15 12:31:11,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 12:31:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 12:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 12:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 12:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-15 12:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-15 12:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 12:31:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 12:31:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-15 12:31:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 12:31:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 12:31:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 12:31:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 12:31:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 12:31:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 12:31:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 12:31:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 12:31:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 12:31:11,361 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 12:31:11,363 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 12:31:11,487 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 12:31:11,491 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 12:31:11,491 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-15 12:31:11,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:31:11 BoogieIcfgContainer [2022-04-15 12:31:11,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 12:31:11,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 12:31:11,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 12:31:11,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 12:31:11,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 12:31:10" (1/3) ... [2022-04-15 12:31:11,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f332e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:31:11, skipping insertion in model container [2022-04-15 12:31:11,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:31:11" (2/3) ... [2022-04-15 12:31:11,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f332e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:31:11, skipping insertion in model container [2022-04-15 12:31:11,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:31:11" (3/3) ... [2022-04-15 12:31:11,498 INFO L111 eAbstractionObserver]: Analyzing ICFG large_const.i [2022-04-15 12:31:11,501 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 12:31:11,501 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 12:31:11,527 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 12:31:11,531 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 [2022-04-15 12:31:11,531 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 12:31:11,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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) [2022-04-15 12:31:11,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-15 12:31:11,547 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 12:31:11,547 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 12:31:11,547 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 12:31:11,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 12:31:11,551 INFO L85 PathProgramCache]: Analyzing trace with hash -829760349, now seen corresponding path program 1 times [2022-04-15 12:31:11,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 12:31:11,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [54370633] [2022-04-15 12:31:11,566 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 12:31:11,566 INFO L85 PathProgramCache]: Analyzing trace with hash -829760349, now seen corresponding path program 2 times [2022-04-15 12:31:11,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 12:31:11,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468049092] [2022-04-15 12:31:11,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 12:31:11,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 12:31:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:31:11,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 12:31:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:31:11,812 INFO L290 TraceCheckUtils]: 0: Hoare triple {37#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {29#true} is VALID [2022-04-15 12:31:11,813 INFO L290 TraceCheckUtils]: 1: Hoare triple {29#true} assume true; {29#true} is VALID [2022-04-15 12:31:11,813 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {29#true} {29#true} #83#return; {29#true} is VALID [2022-04-15 12:31:11,814 INFO L272 TraceCheckUtils]: 0: Hoare triple {29#true} call ULTIMATE.init(); {37#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 12:31:11,814 INFO L290 TraceCheckUtils]: 1: Hoare triple {37#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {29#true} is VALID [2022-04-15 12:31:11,815 INFO L290 TraceCheckUtils]: 2: Hoare triple {29#true} assume true; {29#true} is VALID [2022-04-15 12:31:11,815 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {29#true} {29#true} #83#return; {29#true} is VALID [2022-04-15 12:31:11,815 INFO L272 TraceCheckUtils]: 4: Hoare triple {29#true} call #t~ret6 := main(#in~argc, #in~argv.base, #in~argv.offset); {29#true} is VALID [2022-04-15 12:31:11,815 INFO L290 TraceCheckUtils]: 5: Hoare triple {29#true} ~argc := #in~argc;~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset;~c1~0 := 4000;~c2~0 := 2000;~c3~0 := 10000;havoc ~n~0;havoc ~v~0;havoc ~i~0;havoc ~k~0;havoc ~j~0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~n~0 := #t~nondet1;havoc #t~nondet1; {29#true} is VALID [2022-04-15 12:31:11,832 INFO L290 TraceCheckUtils]: 6: Hoare triple {29#true} assume !!(0 <= ~n~0 && ~n~0 < 10);~k~0 := 0;~i~0 := 0; {34#(= main_~i~0 0)} is VALID [2022-04-15 12:31:11,833 INFO L290 TraceCheckUtils]: 7: Hoare triple {34#(= main_~i~0 0)} assume !(~i~0 < ~n~0); {35#(<= main_~n~0 0)} is VALID [2022-04-15 12:31:11,833 INFO L290 TraceCheckUtils]: 8: Hoare triple {35#(<= main_~n~0 0)} ~j~0 := 0; {36#(and (= main_~j~0 0) (<= main_~n~0 0))} is VALID [2022-04-15 12:31:11,834 INFO L290 TraceCheckUtils]: 9: Hoare triple {36#(and (= main_~j~0 0) (<= main_~n~0 0))} assume !!(~j~0 < ~n~0); {30#false} is VALID [2022-04-15 12:31:11,834 INFO L272 TraceCheckUtils]: 10: Hoare triple {30#false} call __VERIFIER_assert((if ~k~0 > 0 then 1 else 0)); {30#false} is VALID [2022-04-15 12:31:11,834 INFO L290 TraceCheckUtils]: 11: Hoare triple {30#false} ~cond := #in~cond; {30#false} is VALID [2022-04-15 12:31:11,834 INFO L290 TraceCheckUtils]: 12: Hoare triple {30#false} assume 0 == ~cond; {30#false} is VALID [2022-04-15 12:31:11,834 INFO L290 TraceCheckUtils]: 13: Hoare triple {30#false} assume !false; {30#false} is VALID [2022-04-15 12:31:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 12:31:11,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 12:31:11,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468049092] [2022-04-15 12:31:11,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468049092] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:31:11,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:31:11,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-15 12:31:11,838 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 12:31:11,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [54370633] [2022-04-15 12:31:11,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [54370633] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:31:11,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:31:11,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-15 12:31:11,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835822683] [2022-04-15 12:31:11,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 12:31:11,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 14 [2022-04-15 12:31:11,844 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 12:31:11,846 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-04-15 12:31:11,865 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:31:11,865 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-15 12:31:11,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 12:31:11,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-15 12:31:11,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-04-15 12:31:11,886 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-04-15 12:31:12,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:31:12,137 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2022-04-15 12:31:12,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-15 12:31:12,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 14 [2022-04-15 12:31:12,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 12:31:12,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-04-15 12:31:12,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2022-04-15 12:31:12,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-04-15 12:31:12,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2022-04-15 12:31:12,146 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 62 transitions. [2022-04-15 12:31:12,214 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:31:12,222 INFO L225 Difference]: With dead ends: 47 [2022-04-15 12:31:12,222 INFO L226 Difference]: Without dead ends: 22 [2022-04-15 12:31:12,225 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-04-15 12:31:12,228 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 38 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 12:31:12,229 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 44 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 12:31:12,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-04-15 12:31:12,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-04-15 12:31:12,250 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 12:31:12,251 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 12:31:12,251 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 12:31:12,251 INFO L87 Difference]: Start difference. First operand 22 states. Second operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 12:31:12,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:31:12,254 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-04-15 12:31:12,254 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-04-15 12:31:12,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:31:12,254 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:31:12,254 INFO L74 IsIncluded]: Start isIncluded. First operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 22 states. [2022-04-15 12:31:12,255 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 22 states. [2022-04-15 12:31:12,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:31:12,256 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-04-15 12:31:12,256 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-04-15 12:31:12,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:31:12,257 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:31:12,257 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 12:31:12,257 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 12:31:12,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 12:31:12,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-04-15 12:31:12,260 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2022-04-15 12:31:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 12:31:12,260 INFO L478 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-04-15 12:31:12,260 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-04-15 12:31:12,260 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 22 states and 25 transitions. [2022-04-15 12:31:12,282 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:31:12,282 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-04-15 12:31:12,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-15 12:31:12,283 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 12:31:12,283 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 12:31:12,283 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 12:31:12,283 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 12:31:12,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 12:31:12,284 INFO L85 PathProgramCache]: Analyzing trace with hash -174022606, now seen corresponding path program 1 times [2022-04-15 12:31:12,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 12:31:12,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [365853579] [2022-04-15 12:31:14,060 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.logic.Theory.term(Theory.java:1603) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:401) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.PredicateHelper.makeReflexive(PredicateHelper.java:222) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:253) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:195) 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:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:261) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-15 12:31:14,063 INFO L158 Benchmark]: Toolchain (without parser) took 3091.34ms. Allocated memory was 225.4MB in the beginning and 293.6MB in the end (delta: 68.2MB). Free memory was 175.4MB in the beginning and 147.0MB in the end (delta: 28.4MB). Peak memory consumption was 96.5MB. Max. memory is 8.0GB. [2022-04-15 12:31:14,064 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 225.4MB. Free memory was 191.7MB in the beginning and 191.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 12:31:14,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.22ms. Allocated memory is still 225.4MB. Free memory was 175.2MB in the beginning and 201.5MB in the end (delta: -26.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-15 12:31:14,064 INFO L158 Benchmark]: Boogie Preprocessor took 48.13ms. Allocated memory is still 225.4MB. Free memory was 201.1MB in the beginning and 199.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 12:31:14,065 INFO L158 Benchmark]: RCFGBuilder took 242.74ms. Allocated memory is still 225.4MB. Free memory was 199.8MB in the beginning and 187.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-15 12:31:14,065 INFO L158 Benchmark]: TraceAbstraction took 2568.56ms. Allocated memory was 225.4MB in the beginning and 293.6MB in the end (delta: 68.2MB). Free memory was 186.8MB in the beginning and 147.0MB in the end (delta: 39.8MB). Peak memory consumption was 108.3MB. Max. memory is 8.0GB. [2022-04-15 12:31:14,067 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 225.4MB. Free memory was 191.7MB in the beginning and 191.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 228.22ms. Allocated memory is still 225.4MB. Free memory was 175.2MB in the beginning and 201.5MB in the end (delta: -26.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.13ms. Allocated memory is still 225.4MB. Free memory was 201.1MB in the beginning and 199.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 242.74ms. Allocated memory is still 225.4MB. Free memory was 199.8MB in the beginning and 187.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2568.56ms. Allocated memory was 225.4MB in the beginning and 293.6MB in the end (delta: 68.2MB). Free memory was 186.8MB in the beginning and 147.0MB in the end (delta: 39.8MB). Peak memory consumption was 108.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.logic.Theory.term(Theory.java:1603) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-04-15 12:31:14,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...