/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-21 00:08:47,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-21 00:08:47,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-21 00:08:47,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-21 00:08:47,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-21 00:08:47,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-21 00:08:47,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-21 00:08:47,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-21 00:08:47,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-21 00:08:47,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-21 00:08:47,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-21 00:08:47,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-21 00:08:47,185 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-21 00:08:47,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-21 00:08:47,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-21 00:08:47,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-21 00:08:47,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-21 00:08:47,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-21 00:08:47,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-21 00:08:47,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-21 00:08:47,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-21 00:08:47,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-21 00:08:47,210 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-21 00:08:47,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-21 00:08:47,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-21 00:08:47,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-21 00:08:47,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-21 00:08:47,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-21 00:08:47,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-21 00:08:47,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-21 00:08:47,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-21 00:08:47,214 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-21 00:08:47,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-21 00:08:47,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-21 00:08:47,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-21 00:08:47,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-21 00:08:47,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-21 00:08:47,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:08:47,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-21 00:08:47,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-21 00:08:47,215 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-21 00:08:47,215 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-21 00:08:47,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-21 00:08:47,215 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-21 00:08:47,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-21 00:08:47,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-21 00:08:47,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-21 00:08:47,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-21 00:08:47,472 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-21 00:08:47,474 INFO L275 PluginConnector]: CDTParser initialized [2022-03-21 00:08:47,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-03-21 00:08:47,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ece80087/d1d5f232f09647ec94d60555a81efa19/FLAG62ca62540 [2022-03-21 00:08:48,043 INFO L306 CDTParser]: Found 1 translation units. [2022-03-21 00:08:48,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-03-21 00:08:48,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ece80087/d1d5f232f09647ec94d60555a81efa19/FLAG62ca62540 [2022-03-21 00:08:48,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ece80087/d1d5f232f09647ec94d60555a81efa19 [2022-03-21 00:08:48,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-21 00:08:48,552 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-21 00:08:48,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-21 00:08:48,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-21 00:08:48,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-21 00:08:48,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:08:48" (1/1) ... [2022-03-21 00:08:48,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d779b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:08:48, skipping insertion in model container [2022-03-21 00:08:48,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:08:48" (1/1) ... [2022-03-21 00:08:48,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-21 00:08:48,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-21 00:08:49,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c[73311,73324] [2022-03-21 00:08:49,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:08:49,048 INFO L203 MainTranslator]: Completed pre-run [2022-03-21 00:08:49,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c[73311,73324] [2022-03-21 00:08:49,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:08:49,196 INFO L208 MainTranslator]: Completed translation [2022-03-21 00:08:49,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:08:49 WrapperNode [2022-03-21 00:08:49,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-21 00:08:49,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-21 00:08:49,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-21 00:08:49,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-21 00:08:49,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:08:49" (1/1) ... [2022-03-21 00:08:49,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:08:49" (1/1) ... [2022-03-21 00:08:49,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:08:49" (1/1) ... [2022-03-21 00:08:49,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:08:49" (1/1) ... [2022-03-21 00:08:49,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:08:49" (1/1) ... [2022-03-21 00:08:49,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:08:49" (1/1) ... [2022-03-21 00:08:49,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:08:49" (1/1) ... [2022-03-21 00:08:49,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-21 00:08:49,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-21 00:08:49,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-21 00:08:49,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-21 00:08:49,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:08:49" (1/1) ... [2022-03-21 00:08:49,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:08:49,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-21 00:08:49,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-21 00:08:49,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-21 00:08:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-21 00:08:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-21 00:08:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-21 00:08:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-21 00:08:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-21 00:08:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-21 00:08:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-21 00:08:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-21 00:08:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-21 00:08:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-21 00:08:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-21 00:08:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-21 00:08:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-21 00:08:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-21 00:08:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-21 00:08:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-21 00:08:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-21 00:08:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-21 00:08:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-21 00:08:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-21 00:08:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-21 00:08:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-21 00:08:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-21 00:08:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-21 00:08:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-21 00:08:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-21 00:08:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-21 00:08:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-21 00:08:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-21 00:08:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-21 00:08:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-21 00:08:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-21 00:08:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-21 00:08:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-21 00:08:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-21 00:08:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-21 00:08:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-21 00:08:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-21 00:08:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-21 00:08:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-21 00:08:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-21 00:08:49,638 INFO L234 CfgBuilder]: Building ICFG [2022-03-21 00:08:49,639 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-21 00:08:50,884 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-21 00:08:51,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-21 00:08:51,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-21 00:08:51,296 INFO L275 CfgBuilder]: Performing block encoding [2022-03-21 00:08:51,302 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-21 00:08:51,302 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-21 00:08:51,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:08:51 BoogieIcfgContainer [2022-03-21 00:08:51,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-21 00:08:51,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-21 00:08:51,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-21 00:08:51,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-21 00:08:51,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.03 12:08:48" (1/3) ... [2022-03-21 00:08:51,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e602f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:08:51, skipping insertion in model container [2022-03-21 00:08:51,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:08:49" (2/3) ... [2022-03-21 00:08:51,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e602f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:08:51, skipping insertion in model container [2022-03-21 00:08:51,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:08:51" (3/3) ... [2022-03-21 00:08:51,309 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-2.c [2022-03-21 00:08:51,312 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-21 00:08:51,313 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-21 00:08:51,341 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-21 00:08:51,345 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 [2022-03-21 00:08:51,345 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-21 00:08:51,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 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) [2022-03-21 00:08:51,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-21 00:08:51,365 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:51,365 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:51,365 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:51,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:51,369 INFO L85 PathProgramCache]: Analyzing trace with hash 105535570, now seen corresponding path program 1 times [2022-03-21 00:08:51,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:51,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2005755926] [2022-03-21 00:08:51,395 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:08:51,395 INFO L85 PathProgramCache]: Analyzing trace with hash 105535570, now seen corresponding path program 2 times [2022-03-21 00:08:51,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:51,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389456600] [2022-03-21 00:08:51,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:51,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:51,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:51,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:08:51,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:51,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389456600] [2022-03-21 00:08:51,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389456600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:51,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:51,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:51,814 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:51,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2005755926] [2022-03-21 00:08:51,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2005755926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:51,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:51,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:51,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537592511] [2022-03-21 00:08:51,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:51,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:51,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:51,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:51,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:51,838 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 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 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:54,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:54,082 INFO L93 Difference]: Finished difference Result 421 states and 708 transitions. [2022-03-21 00:08:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:54,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 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 48 [2022-03-21 00:08:54,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:54,092 INFO L225 Difference]: With dead ends: 421 [2022-03-21 00:08:54,092 INFO L226 Difference]: Without dead ends: 255 [2022-03-21 00:08:54,095 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:54,098 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 148 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:54,098 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 443 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-21 00:08:54,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-21 00:08:54,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 179. [2022-03-21 00:08:54,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5977011494252873) internal successors, (278), 174 states have internal predecessors, (278), 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) [2022-03-21 00:08:54,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 282 transitions. [2022-03-21 00:08:54,136 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 282 transitions. Word has length 48 [2022-03-21 00:08:54,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:54,137 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 282 transitions. [2022-03-21 00:08:54,137 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:54,137 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 282 transitions. [2022-03-21 00:08:54,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-21 00:08:54,138 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:54,139 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:54,139 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-21 00:08:54,139 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:54,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:54,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1029867406, now seen corresponding path program 1 times [2022-03-21 00:08:54,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:54,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1847789559] [2022-03-21 00:08:54,140 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:08:54,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1029867406, now seen corresponding path program 2 times [2022-03-21 00:08:54,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:54,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43203318] [2022-03-21 00:08:54,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:54,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:54,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:54,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:08:54,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:54,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43203318] [2022-03-21 00:08:54,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43203318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:54,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:54,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:54,275 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:54,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1847789559] [2022-03-21 00:08:54,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1847789559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:54,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:54,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:54,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036830249] [2022-03-21 00:08:54,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:54,276 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:54,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:54,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:54,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:54,277 INFO L87 Difference]: Start difference. First operand 179 states and 282 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:56,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:59,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:59,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:59,556 INFO L93 Difference]: Finished difference Result 371 states and 586 transitions. [2022-03-21 00:08:59,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:59,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 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 49 [2022-03-21 00:08:59,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:59,559 INFO L225 Difference]: With dead ends: 371 [2022-03-21 00:08:59,559 INFO L226 Difference]: Without dead ends: 207 [2022-03-21 00:08:59,560 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:59,561 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 22 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:59,562 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 463 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 358 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-03-21 00:08:59,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-03-21 00:08:59,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 190. [2022-03-21 00:08:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.6054054054054054) internal successors, (297), 185 states have internal predecessors, (297), 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) [2022-03-21 00:08:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 301 transitions. [2022-03-21 00:08:59,592 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 301 transitions. Word has length 49 [2022-03-21 00:08:59,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:59,592 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 301 transitions. [2022-03-21 00:08:59,593 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:59,593 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 301 transitions. [2022-03-21 00:08:59,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-21 00:08:59,594 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:59,594 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:59,595 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-21 00:08:59,595 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:59,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:59,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1803075384, now seen corresponding path program 1 times [2022-03-21 00:08:59,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:59,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [817653328] [2022-03-21 00:08:59,611 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:59,611 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:59,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1803075384, now seen corresponding path program 2 times [2022-03-21 00:08:59,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:59,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511630260] [2022-03-21 00:08:59,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:59,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:59,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:59,807 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:08:59,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:59,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511630260] [2022-03-21 00:08:59,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511630260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:59,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:59,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:59,808 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:59,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [817653328] [2022-03-21 00:08:59,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [817653328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:59,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:59,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:59,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168196474] [2022-03-21 00:08:59,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:59,810 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:59,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:59,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:59,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:59,811 INFO L87 Difference]: Start difference. First operand 190 states and 301 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:03,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:05,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:05,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:05,667 INFO L93 Difference]: Finished difference Result 371 states and 585 transitions. [2022-03-21 00:09:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:05,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 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 62 [2022-03-21 00:09:05,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:05,669 INFO L225 Difference]: With dead ends: 371 [2022-03-21 00:09:05,669 INFO L226 Difference]: Without dead ends: 207 [2022-03-21 00:09:05,670 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:05,671 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 24 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:05,671 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 465 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 356 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-21 00:09:05,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-03-21 00:09:05,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 190. [2022-03-21 00:09:05,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.6) internal successors, (296), 185 states have internal predecessors, (296), 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) [2022-03-21 00:09:05,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 300 transitions. [2022-03-21 00:09:05,684 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 300 transitions. Word has length 62 [2022-03-21 00:09:05,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:05,684 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 300 transitions. [2022-03-21 00:09:05,684 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:05,684 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 300 transitions. [2022-03-21 00:09:05,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-21 00:09:05,685 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:05,686 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:05,686 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-21 00:09:05,686 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:05,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:05,686 INFO L85 PathProgramCache]: Analyzing trace with hash 379746120, now seen corresponding path program 1 times [2022-03-21 00:09:05,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:05,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [734022932] [2022-03-21 00:09:05,698 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:09:05,698 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:05,698 INFO L85 PathProgramCache]: Analyzing trace with hash 379746120, now seen corresponding path program 2 times [2022-03-21 00:09:05,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:05,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506047693] [2022-03-21 00:09:05,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:05,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:05,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:05,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:09:05,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:05,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506047693] [2022-03-21 00:09:05,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506047693] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:05,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:05,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:05,843 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:05,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [734022932] [2022-03-21 00:09:05,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [734022932] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:05,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:05,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:05,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343827413] [2022-03-21 00:09:05,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:05,844 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:05,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:05,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:05,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:05,844 INFO L87 Difference]: Start difference. First operand 190 states and 300 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:09,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:11,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:11,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:11,559 INFO L93 Difference]: Finished difference Result 370 states and 583 transitions. [2022-03-21 00:09:11,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:11,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 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 63 [2022-03-21 00:09:11,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:11,560 INFO L225 Difference]: With dead ends: 370 [2022-03-21 00:09:11,560 INFO L226 Difference]: Without dead ends: 206 [2022-03-21 00:09:11,561 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:11,561 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 28 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:11,562 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 467 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-21 00:09:11,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-03-21 00:09:11,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 190. [2022-03-21 00:09:11,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.5945945945945945) internal successors, (295), 185 states have internal predecessors, (295), 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) [2022-03-21 00:09:11,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 299 transitions. [2022-03-21 00:09:11,570 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 299 transitions. Word has length 63 [2022-03-21 00:09:11,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:11,570 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 299 transitions. [2022-03-21 00:09:11,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:11,571 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 299 transitions. [2022-03-21 00:09:11,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-21 00:09:11,572 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:11,572 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:11,572 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-21 00:09:11,572 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:11,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:11,573 INFO L85 PathProgramCache]: Analyzing trace with hash -667764684, now seen corresponding path program 1 times [2022-03-21 00:09:11,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:11,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1997473160] [2022-03-21 00:09:11,621 ERROR L250 FreeRefinementEngine]: Caught unknown exception: Undeclared function symbol (* (Array Int (Array Int Int)) Int) [2022-03-21 00:09:11,621 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-21 00:09:11,622 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (* (Array Int (Array Int Int)) Int) at de.uni_freiburg.informatik.ultimate.logic.Theory.term(Theory.java:1615) 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.smtlibutils.SmtUtils.mul(SmtUtils.java:597) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrUtils.matrixVectorMultiplicationWithVariables(QvasrUtils.java:226) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.intVasrAbstractionToFormula(QvasrSummarizer.java:177) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.summarizeLoop(QvasrSummarizer.java:140) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrLoopSummarization.getQvasrAcceleration(QvasrLoopSummarization.java:87) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorQvasr.accelerateLoop(AcceleratorQvasr.java:91) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:246) 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:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-21 00:09:11,625 INFO L158 Benchmark]: Toolchain (without parser) took 23073.10ms. Allocated memory was 198.2MB in the beginning and 306.2MB in the end (delta: 108.0MB). Free memory was 147.8MB in the beginning and 122.1MB in the end (delta: 25.7MB). Peak memory consumption was 134.0MB. Max. memory is 8.0GB. [2022-03-21 00:09:11,625 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 198.2MB. Free memory is still 166.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-21 00:09:11,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.05ms. Allocated memory is still 198.2MB. Free memory was 147.5MB in the beginning and 156.4MB in the end (delta: -8.9MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. [2022-03-21 00:09:11,625 INFO L158 Benchmark]: Boogie Preprocessor took 108.77ms. Allocated memory is still 198.2MB. Free memory was 156.4MB in the beginning and 148.5MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-21 00:09:11,626 INFO L158 Benchmark]: RCFGBuilder took 1996.46ms. Allocated memory was 198.2MB in the beginning and 306.2MB in the end (delta: 108.0MB). Free memory was 148.5MB in the beginning and 260.3MB in the end (delta: -111.7MB). Peak memory consumption was 62.4MB. Max. memory is 8.0GB. [2022-03-21 00:09:11,626 INFO L158 Benchmark]: TraceAbstraction took 20319.56ms. Allocated memory is still 306.2MB. Free memory was 259.7MB in the beginning and 122.1MB in the end (delta: 137.6MB). Peak memory consumption was 137.6MB. Max. memory is 8.0GB. [2022-03-21 00:09:11,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 198.2MB. Free memory is still 166.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 644.05ms. Allocated memory is still 198.2MB. Free memory was 147.5MB in the beginning and 156.4MB in the end (delta: -8.9MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 108.77ms. Allocated memory is still 198.2MB. Free memory was 156.4MB in the beginning and 148.5MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1996.46ms. Allocated memory was 198.2MB in the beginning and 306.2MB in the end (delta: 108.0MB). Free memory was 148.5MB in the beginning and 260.3MB in the end (delta: -111.7MB). Peak memory consumption was 62.4MB. Max. memory is 8.0GB. * TraceAbstraction took 20319.56ms. Allocated memory is still 306.2MB. Free memory was 259.7MB in the beginning and 122.1MB in the end (delta: 137.6MB). Peak memory consumption was 137.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (* (Array Int (Array Int Int)) Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (* (Array Int (Array Int Int)) Int): de.uni_freiburg.informatik.ultimate.logic.Theory.term(Theory.java:1615) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-21 00:09:11,654 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...