/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.07.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-21 00:07:30,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-21 00:07:30,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-21 00:07:31,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-21 00:07:31,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-21 00:07:31,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-21 00:07:31,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-21 00:07:31,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-21 00:07:31,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-21 00:07:31,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-21 00:07:31,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-21 00:07:31,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-21 00:07:31,032 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-21 00:07:31,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-21 00:07:31,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-21 00:07:31,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-21 00:07:31,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-21 00:07:31,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-21 00:07:31,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-21 00:07:31,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-21 00:07:31,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-21 00:07:31,047 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 00:07:31,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-21 00:07:31,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-21 00:07:31,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-21 00:07:31,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-21 00:07:31,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-21 00:07:31,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-21 00:07:31,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-21 00:07:31,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-21 00:07:31,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-21 00:07:31,055 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-21 00:07:31,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-21 00:07:31,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-21 00:07:31,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-21 00:07:31,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-21 00:07:31,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-21 00:07:31,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:07:31,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-21 00:07:31,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-21 00:07:31,056 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-21 00:07:31,056 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-21 00:07:31,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-21 00:07:31,056 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-21 00:07:31,056 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-21 00:07:31,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-21 00:07:31,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-21 00:07:31,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-21 00:07:31,252 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-21 00:07:31,252 INFO L275 PluginConnector]: CDTParser initialized [2022-03-21 00:07:31,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-03-21 00:07:31,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c9201dd/873cb634e6d8463c8c8d3e036c6843f1/FLAG08400bc46 [2022-03-21 00:07:31,774 INFO L306 CDTParser]: Found 1 translation units. [2022-03-21 00:07:31,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-03-21 00:07:31,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c9201dd/873cb634e6d8463c8c8d3e036c6843f1/FLAG08400bc46 [2022-03-21 00:07:31,796 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c9201dd/873cb634e6d8463c8c8d3e036c6843f1 [2022-03-21 00:07:31,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-21 00:07:31,798 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-21 00:07:31,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-21 00:07:31,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-21 00:07:31,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-21 00:07:31,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:07:31" (1/1) ... [2022-03-21 00:07:31,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301d113f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:31, skipping insertion in model container [2022-03-21 00:07:31,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:07:31" (1/1) ... [2022-03-21 00:07:31,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-21 00:07:31,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-21 00:07:32,158 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.07.i.cil-1.c[74369,74382] [2022-03-21 00:07:32,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:07:32,190 INFO L203 MainTranslator]: Completed pre-run [2022-03-21 00:07:32,260 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.07.i.cil-1.c[74369,74382] [2022-03-21 00:07:32,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:07:32,274 INFO L208 MainTranslator]: Completed translation [2022-03-21 00:07:32,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:32 WrapperNode [2022-03-21 00:07:32,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-21 00:07:32,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-21 00:07:32,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-21 00:07:32,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-21 00:07:32,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:32" (1/1) ... [2022-03-21 00:07:32,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:32" (1/1) ... [2022-03-21 00:07:32,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:32" (1/1) ... [2022-03-21 00:07:32,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:32" (1/1) ... [2022-03-21 00:07:32,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:32" (1/1) ... [2022-03-21 00:07:32,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:32" (1/1) ... [2022-03-21 00:07:32,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:32" (1/1) ... [2022-03-21 00:07:32,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-21 00:07:32,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-21 00:07:32,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-21 00:07:32,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-21 00:07:32,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:32" (1/1) ... [2022-03-21 00:07:32,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:07:32,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-21 00:07:32,394 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 00:07:32,405 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 00:07:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-21 00:07:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-21 00:07:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-21 00:07:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-21 00:07:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-21 00:07:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-21 00:07:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-21 00:07:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-21 00:07:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-21 00:07:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-21 00:07:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-21 00:07:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-21 00:07:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-21 00:07:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-21 00:07:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-21 00:07:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-21 00:07:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-21 00:07:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-21 00:07:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-21 00:07:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-21 00:07:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-21 00:07:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-21 00:07:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-21 00:07:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-21 00:07:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-21 00:07:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-21 00:07:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-21 00:07:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-21 00:07:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-21 00:07:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-21 00:07:32,554 INFO L234 CfgBuilder]: Building ICFG [2022-03-21 00:07:32,555 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-21 00:07:33,451 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-21 00:07:33,810 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-21 00:07:33,811 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-21 00:07:33,820 INFO L275 CfgBuilder]: Performing block encoding [2022-03-21 00:07:33,825 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-21 00:07:33,826 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-21 00:07:33,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:07:33 BoogieIcfgContainer [2022-03-21 00:07:33,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-21 00:07:33,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-21 00:07:33,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-21 00:07:33,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-21 00:07:33,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.03 12:07:31" (1/3) ... [2022-03-21 00:07:33,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7771da21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:07:33, skipping insertion in model container [2022-03-21 00:07:33,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:07:32" (2/3) ... [2022-03-21 00:07:33,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7771da21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:07:33, skipping insertion in model container [2022-03-21 00:07:33,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:07:33" (3/3) ... [2022-03-21 00:07:33,836 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-1.c [2022-03-21 00:07:33,839 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-21 00:07:33,840 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-21 00:07:33,867 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-21 00:07:33,871 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 00:07:33,872 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-21 00:07:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 00:07:33,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-21 00:07:33,889 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:33,889 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] [2022-03-21 00:07:33,889 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:33,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:33,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1538020646, now seen corresponding path program 1 times [2022-03-21 00:07:33,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:33,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [827732805] [2022-03-21 00:07:33,905 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:07:33,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1538020646, now seen corresponding path program 2 times [2022-03-21 00:07:33,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:33,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958175184] [2022-03-21 00:07:33,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:33,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:34,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:34,385 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 00:07:34,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:34,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958175184] [2022-03-21 00:07:34,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958175184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:34,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:34,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:34,388 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:34,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [827732805] [2022-03-21 00:07:34,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [827732805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:34,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:34,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:34,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206493782] [2022-03-21 00:07:34,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:34,392 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:34,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:34,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:34,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:34,413 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 00:07:36,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:36,362 INFO L93 Difference]: Finished difference Result 428 states and 723 transitions. [2022-03-21 00:07:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:36,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 42 [2022-03-21 00:07:36,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:36,371 INFO L225 Difference]: With dead ends: 428 [2022-03-21 00:07:36,371 INFO L226 Difference]: Without dead ends: 259 [2022-03-21 00:07:36,374 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 00:07:36,376 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 163 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:36,377 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-21 00:07:36,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-21 00:07:36,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 170. [2022-03-21 00:07:36,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 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 00:07:36,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-03-21 00:07:36,417 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-03-21 00:07:36,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:36,418 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-03-21 00:07:36,418 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 00:07:36,418 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-03-21 00:07:36,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-21 00:07:36,420 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:36,420 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] [2022-03-21 00:07:36,420 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-21 00:07:36,421 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:36,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:36,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1015183371, now seen corresponding path program 1 times [2022-03-21 00:07:36,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:36,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1583276783] [2022-03-21 00:07:36,424 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:07:36,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1015183371, now seen corresponding path program 2 times [2022-03-21 00:07:36,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:36,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046811824] [2022-03-21 00:07:36,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:36,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:36,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:36,587 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 00:07:36,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:36,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046811824] [2022-03-21 00:07:36,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046811824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:36,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:36,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:36,588 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:36,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1583276783] [2022-03-21 00:07:36,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1583276783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:36,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:36,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:36,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282644498] [2022-03-21 00:07:36,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:36,589 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:36,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:36,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:36,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:36,590 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 00:07:39,260 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 00:07:41,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:43,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:43,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:43,676 INFO L93 Difference]: Finished difference Result 442 states and 693 transitions. [2022-03-21 00:07:43,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:43,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 43 [2022-03-21 00:07:43,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:43,678 INFO L225 Difference]: With dead ends: 442 [2022-03-21 00:07:43,678 INFO L226 Difference]: Without dead ends: 287 [2022-03-21 00:07:43,679 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 00:07:43,680 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 130 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:43,680 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-21 00:07:43,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-21 00:07:43,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 199. [2022-03-21 00:07:43,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 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 00:07:43,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-03-21 00:07:43,692 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-03-21 00:07:43,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:43,693 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-03-21 00:07:43,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 00:07:43,693 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-03-21 00:07:43,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-21 00:07:43,694 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:43,694 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 00:07:43,694 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-21 00:07:43,694 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:43,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:43,695 INFO L85 PathProgramCache]: Analyzing trace with hash 887448580, now seen corresponding path program 1 times [2022-03-21 00:07:43,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:43,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [160682459] [2022-03-21 00:07:43,695 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:07:43,695 INFO L85 PathProgramCache]: Analyzing trace with hash 887448580, now seen corresponding path program 2 times [2022-03-21 00:07:43,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:43,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464081587] [2022-03-21 00:07:43,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:43,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:43,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:43,852 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 00:07:43,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:43,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464081587] [2022-03-21 00:07:43,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464081587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:43,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:43,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:43,853 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:43,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [160682459] [2022-03-21 00:07:43,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [160682459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:43,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:43,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:43,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472173995] [2022-03-21 00:07:43,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:43,858 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:43,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:43,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:43,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:43,859 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. 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 00:07:45,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:47,083 WARN L534 Checker$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 00:07:49,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:51,130 WARN L534 Checker$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 00:07:51,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:51,618 INFO L93 Difference]: Finished difference Result 501 states and 796 transitions. [2022-03-21 00:07:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:51,619 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 00:07:51,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:51,620 INFO L225 Difference]: With dead ends: 501 [2022-03-21 00:07:51,620 INFO L226 Difference]: Without dead ends: 317 [2022-03-21 00:07:51,621 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 00:07:51,622 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 119 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:51,622 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 477 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-03-21 00:07:51,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-21 00:07:51,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 239. [2022-03-21 00:07:51,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 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 00:07:51,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-03-21 00:07:51,671 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 48 [2022-03-21 00:07:51,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:51,671 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-03-21 00:07:51,671 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 00:07:51,672 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-03-21 00:07:51,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-21 00:07:51,676 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:51,676 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 00:07:51,676 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-21 00:07:51,676 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:51,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:51,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1734094884, now seen corresponding path program 1 times [2022-03-21 00:07:51,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:51,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1085143132] [2022-03-21 00:07:51,677 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:07:51,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1734094884, now seen corresponding path program 2 times [2022-03-21 00:07:51,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:51,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862404645] [2022-03-21 00:07:51,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:51,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:51,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:51,803 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 00:07:51,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:51,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862404645] [2022-03-21 00:07:51,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862404645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:51,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:51,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:51,804 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:51,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1085143132] [2022-03-21 00:07:51,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1085143132] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:51,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:51,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:51,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977517539] [2022-03-21 00:07:51,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:51,805 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:51,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:51,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:51,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:51,811 INFO L87 Difference]: Start difference. First operand 239 states and 388 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 00:07:53,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:54,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:56,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:57,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:57,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:57,413 INFO L93 Difference]: Finished difference Result 491 states and 798 transitions. [2022-03-21 00:07:57,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:57,413 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 00:07:57,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:57,415 INFO L225 Difference]: With dead ends: 491 [2022-03-21 00:07:57,415 INFO L226 Difference]: Without dead ends: 267 [2022-03-21 00:07:57,415 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 00:07:57,416 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:57,416 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-21 00:07:57,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-03-21 00:07:57,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 250. [2022-03-21 00:07:57,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.6448979591836734) internal successors, (403), 245 states have internal predecessors, (403), 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 00:07:57,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 407 transitions. [2022-03-21 00:07:57,426 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 407 transitions. Word has length 49 [2022-03-21 00:07:57,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:57,426 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 407 transitions. [2022-03-21 00:07:57,426 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 00:07:57,426 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 407 transitions. [2022-03-21 00:07:57,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-21 00:07:57,427 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:57,427 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 00:07:57,427 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-21 00:07:57,427 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:57,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:57,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1174088998, now seen corresponding path program 1 times [2022-03-21 00:07:57,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:57,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1407975801] [2022-03-21 00:07:57,439 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:07:57,439 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:57,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1174088998, now seen corresponding path program 2 times [2022-03-21 00:07:57,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:57,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229096190] [2022-03-21 00:07:57,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:57,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:57,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:57,559 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 00:07:57,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:57,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229096190] [2022-03-21 00:07:57,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229096190] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:57,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:57,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:57,564 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:57,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1407975801] [2022-03-21 00:07:57,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1407975801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:57,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:57,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:57,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880131090] [2022-03-21 00:07:57,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:57,564 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:57,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:57,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:57,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:57,565 INFO L87 Difference]: Start difference. First operand 250 states and 407 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 00:07:59,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:01,400 WARN L534 Checker$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 00:08:03,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:05,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:05,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:05,522 INFO L93 Difference]: Finished difference Result 491 states and 797 transitions. [2022-03-21 00:08:05,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:05,522 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 00:08:05,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:05,523 INFO L225 Difference]: With dead ends: 491 [2022-03-21 00:08:05,524 INFO L226 Difference]: Without dead ends: 267 [2022-03-21 00:08:05,524 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 00:08:05,525 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:05,525 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-03-21 00:08:05,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-03-21 00:08:05,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 250. [2022-03-21 00:08:05,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.6408163265306122) internal successors, (402), 245 states have internal predecessors, (402), 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 00:08:05,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 406 transitions. [2022-03-21 00:08:05,535 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 406 transitions. Word has length 62 [2022-03-21 00:08:05,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:05,535 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 406 transitions. [2022-03-21 00:08:05,535 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 00:08:05,535 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 406 transitions. [2022-03-21 00:08:05,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-21 00:08:05,536 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:05,536 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 00:08:05,536 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-21 00:08:05,537 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:05,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:05,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1299527402, now seen corresponding path program 1 times [2022-03-21 00:08:05,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:05,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [220669619] [2022-03-21 00:08:05,545 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:08:05,545 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:05,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1299527402, now seen corresponding path program 2 times [2022-03-21 00:08:05,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:05,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256631554] [2022-03-21 00:08:05,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:05,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:05,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:05,656 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 00:08:05,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:05,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256631554] [2022-03-21 00:08:05,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256631554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:05,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:05,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:05,657 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:05,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [220669619] [2022-03-21 00:08:05,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [220669619] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:05,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:05,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:05,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335544815] [2022-03-21 00:08:05,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:05,658 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:05,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:05,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:05,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:05,659 INFO L87 Difference]: Start difference. First operand 250 states and 406 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 00:08:06,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:08,748 WARN L534 Checker$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 00:08:11,053 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 00:08:11,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:11,558 INFO L93 Difference]: Finished difference Result 561 states and 903 transitions. [2022-03-21 00:08:11,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:11,558 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 00:08:11,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:11,560 INFO L225 Difference]: With dead ends: 561 [2022-03-21 00:08:11,560 INFO L226 Difference]: Without dead ends: 337 [2022-03-21 00:08:11,560 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 00:08:11,561 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 147 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:11,561 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-21 00:08:11,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-03-21 00:08:11,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 250. [2022-03-21 00:08:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.6244897959183673) internal successors, (398), 245 states have internal predecessors, (398), 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 00:08:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 402 transitions. [2022-03-21 00:08:11,574 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 402 transitions. Word has length 63 [2022-03-21 00:08:11,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:11,574 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 402 transitions. [2022-03-21 00:08:11,575 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 00:08:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 402 transitions. [2022-03-21 00:08:11,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-21 00:08:11,575 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:11,576 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 00:08:11,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-21 00:08:11,576 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:11,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:11,576 INFO L85 PathProgramCache]: Analyzing trace with hash 252016598, now seen corresponding path program 1 times [2022-03-21 00:08:11,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:11,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [496493351] [2022-03-21 00:08:11,631 ERROR L250 FreeRefinementEngine]: Caught unknown exception: Undeclared function symbol (* (Array Int (Array Int Int)) Int) [2022-03-21 00:08:11,631 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-21 00:08:11,631 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 00:08:11,634 INFO L158 Benchmark]: Toolchain (without parser) took 39835.56ms. Allocated memory was 222.3MB in the beginning and 458.2MB in the end (delta: 235.9MB). Free memory was 167.0MB in the beginning and 407.0MB in the end (delta: -240.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-21 00:08:11,634 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 222.3MB. Free memory is still 185.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-21 00:08:11,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.18ms. Allocated memory was 222.3MB in the beginning and 381.7MB in the end (delta: 159.4MB). Free memory was 166.8MB in the beginning and 334.5MB in the end (delta: -167.7MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. [2022-03-21 00:08:11,634 INFO L158 Benchmark]: Boogie Preprocessor took 86.38ms. Allocated memory is still 381.7MB. Free memory was 334.5MB in the beginning and 326.7MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-21 00:08:11,635 INFO L158 Benchmark]: RCFGBuilder took 1465.40ms. Allocated memory is still 381.7MB. Free memory was 326.7MB in the beginning and 309.1MB in the end (delta: 17.5MB). Peak memory consumption was 42.0MB. Max. memory is 8.0GB. [2022-03-21 00:08:11,637 INFO L158 Benchmark]: TraceAbstraction took 37805.24ms. Allocated memory was 381.7MB in the beginning and 458.2MB in the end (delta: 76.5MB). Free memory was 308.6MB in the beginning and 407.0MB in the end (delta: -98.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-21 00:08:11,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 222.3MB. Free memory is still 185.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 471.18ms. Allocated memory was 222.3MB in the beginning and 381.7MB in the end (delta: 159.4MB). Free memory was 166.8MB in the beginning and 334.5MB in the end (delta: -167.7MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 86.38ms. Allocated memory is still 381.7MB. Free memory was 334.5MB in the beginning and 326.7MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1465.40ms. Allocated memory is still 381.7MB. Free memory was 326.7MB in the beginning and 309.1MB in the end (delta: 17.5MB). Peak memory consumption was 42.0MB. Max. memory is 8.0GB. * TraceAbstraction took 37805.24ms. Allocated memory was 381.7MB in the beginning and 458.2MB in the end (delta: 76.5MB). Free memory was 308.6MB in the beginning and 407.0MB in the end (delta: -98.4MB). There was no memory consumed. 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 00:08:11,667 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...